build-appliance-image: Update to master head revision

(From OE-Core rev: 6027a6c6cf283bfb639bb6c3bc2f35b3da225352)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

.b4-config

@@ -0,0 +1,4 @@
+[b4]
+  prep-perpatch-check-cmd = ./scripts/b4-wrapper-poky.py prep-perpatch-check-cmd
+  send-auto-cc-cmd = ./scripts/b4-wrapper-poky.py send-auto-cc-cmd
+  send-auto-to-cmd = ./scripts/b4-wrapper-poky.py send-auto-to-cmd

.gitignore

@@ -36,3 +36,4 @@ _toaster_clones/
 downloads/
 sstate-cache/
 toaster.sqlite
+.vscode/

MAINTAINERS.md

@@ -41,6 +41,7 @@ Component/Subsystem Maintainers
 * devtool: Saul Wold
 * eSDK: Saul Wold
 * overlayfs: Vyacheslav Yurkov
+* Patchtest: Trevor Gamblin
 
 Maintainers needed
 ------------------
@@ -52,7 +53,6 @@ Maintainers needed
 * error reporting system/web UI
 * wic
 * Patchwork
-* Patchtest
 * Matchbox
 * Sato
 * Autobuilder
@@ -67,5 +67,3 @@ Shadow maintainers/development needed
 
 * toaster
 * bitbake
-
-

Makefile

@@ -1,35 +0,0 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line, and also
-# from the environment for the first two.
-SPHINXOPTS    ?=
-SPHINXBUILD   ?= sphinx-build
-SOURCEDIR     = .
-BUILDDIR      = _build
-DESTDIR       = final
-
-ifeq ($(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi),0)
-$(error "The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed")
-endif
-
-# Put it first so that "make" without argument is like "make help".
-help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-
-.PHONY: help Makefile.sphinx clean publish
-
-publish: Makefile.sphinx html singlehtml
-	rm -rf $(BUILDDIR)/$(DESTDIR)/
-	mkdir -p $(BUILDDIR)/$(DESTDIR)/
-	cp -r $(BUILDDIR)/html/* $(BUILDDIR)/$(DESTDIR)/
-	cp $(BUILDDIR)/singlehtml/index.html $(BUILDDIR)/$(DESTDIR)/singleindex.html
-	sed -i -e 's@index.html#@singleindex.html#@g' $(BUILDDIR)/$(DESTDIR)/singleindex.html
-
-clean:
-	@rm -rf $(BUILDDIR)
-
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
-%: Makefile.sphinx
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

README.OE-Core.md

@@ -6,28 +6,27 @@ of OpenEmbedded. It is distro-less (can build a functional image with
 DISTRO = "nodistro") and contains only emulated machine support.
 
 For information about OpenEmbedded, see the OpenEmbedded website:
-    https://www.openembedded.org/
+<https://www.openembedded.org/>
 
 The Yocto Project has extensive documentation about OE including a reference manual
 which can be found at:
-    https://docs.yoctoproject.org/
-
+<https://docs.yoctoproject.org/>
 
 Contributing
 ------------
 
-Please refer to our contributor guide here: https://docs.yoctoproject.org/dev/contributor-guide/
+Please refer to our contributor guide here: <https://docs.yoctoproject.org/dev/contributor-guide/>
 for full details on how to submit changes.
 
 As a quick guide, patches should be sent to openembedded-core@lists.openembedded.org
 The git command to do that would be:
 
-     git send-email -M -1 --to openembedded-core@lists.openembedded.org
+```
+git send-email -M -1 --to openembedded-core@lists.openembedded.org
+```
 
 Mailing list:
-
-    https://lists.openembedded.org/g/openembedded-core
+<https://lists.openembedded.org/g/openembedded-core>
 
 Source code:
-
-    https://git.openembedded.org/openembedded-core/
+<https://git.openembedded.org/openembedded-core/>

README.qemu.md

@@ -5,10 +5,10 @@ To simplify development, the build system supports building images to
 work with the QEMU emulator in system emulation mode. Several architectures
 are currently supported in 32 and 64 bit variants:
 
-  * ARM (qemuarm + qemuarm64)
-  * x86 (qemux86 + qemux86-64)
-  * PowerPC (qemuppc only)
-  * MIPS (qemumips + qemumips64)
+* ARM (qemuarm + qemuarm64)
+* x86 (qemux86 + qemux86-64)
+* PowerPC (qemuppc only)
+* MIPS (qemumips + qemumips64)
 
 Use of the QEMU images is covered in the Yocto Project Reference Manual.
 The appropriate MACHINE variable value corresponding to the target is given

SECURITY.md

@@ -1,11 +1,9 @@
-How to Report a Potential Vulnerability?
-========================================
+How to Report a Potential Vulnerability
+=======================================
 
 If you would like to report a public issue (for example, one with a released
 CVE number), please report it using the
-[https://bugzilla.yoctoproject.org/enter_bug.cgi?product=Security Security Bugzilla].
-If you have a patch ready, submit it following the same procedure as any other
-patch as described in README.md.
+[Security Bugzilla](https://bugzilla.yoctoproject.org/enter_bug.cgi?product=Security)
 
 If you are dealing with a not-yet released or urgent issue, please send a
 message to security AT yoctoproject DOT org, including as many details as
@@ -15,10 +13,10 @@ and any example code, if available.
 Branches maintained with security fixes
 ---------------------------------------
 
-See [https://wiki.yoctoproject.org/wiki/Stable_Release_and_LTS Stable release and LTS]
+See [Stable release and LTS](https://wiki.yoctoproject.org/wiki/Stable_Release_and_LTS)
 for detailed info regarding the policies and maintenance of Stable branches.
 
-The [https://wiki.yoctoproject.org/wiki/Releases Release page] contains a list of all
-releases of the Yocto Project. Versions in grey are no longer actively maintained with
-security patches, but well-tested patches may still be accepted for them for
-significant issues.
+The [Release page](https://wiki.yoctoproject.org/wiki/Releases) contains
+a list of all releases of the Yocto Project. Versions in grey are no longer
+actively maintained with security patches, but well-tested patches may still
+be accepted for them for significant issues.

bitbake/.b4-config

@@ -0,0 +1,4 @@
+[b4]
+  send-series-to = bitbake-devel@lists.openembedded.org
+  send-auto-cc-cmd = ./contrib/b4-wrapper-bitbake.py send-auto-cc-cmd
+  prep-pre-flight-checks = disable-needs-checking

bitbake/README

@@ -18,16 +18,19 @@ Bitbake requires Python version 3.8 or newer.
 Contributing
 ------------
 
-Please refer to
-https://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
-for guidelines on how to submit patches, just note that the latter documentation is intended
-for OpenEmbedded (and its core) not bitbake patches (bitbake-devel@lists.openembedded.org)
-but in general main guidelines apply. Once the commit(s) have been created, the way to send
-the patch is through git-send-email. For example, to send the last commit (HEAD) on current
-branch, type:
+Please refer to our contributor guide here: https://docs.yoctoproject.org/contributor-guide/
+for full details on how to submit changes.
+
+As a quick guide, patches should be sent to bitbake-devel@lists.openembedded.org
+The git command to do that would be:
 
     git send-email -M -1 --to bitbake-devel@lists.openembedded.org
 
+If you're sending a patch related to the BitBake manual, make sure you copy
+the Yocto Project documentation mailing list:
+
+    git send-email -M -1 --to bitbake-devel@lists.openembedded.org --cc docs@lists.yoctoproject.org
+
 Mailing list:
 
     https://lists.openembedded.org/g/bitbake-devel
@@ -45,8 +48,7 @@ it has so many corner cases. The datastore has many tests too. Testing with the
 recommended before submitting patches, particularly to the fetcher and datastore. We also
 appreciate new test cases and may require them for more obscure issues.
 
-To run the tests "zstd" and "git" must be installed. Git must be correctly configured, in
-particular the user.email and user.name values must be set.
+To run the tests "zstd" and "git" must be installed.
 
 The assumption is made that this testsuite is run from an initialized OpenEmbedded build
 environment (i.e. `source oe-init-build-env` is used). If this is not the case, run the
@@ -54,3 +56,8 @@ testsuite as follows:
 
     export PATH=$(pwd)/bin:$PATH
     bin/bitbake-selftest
+
+The testsuite can alternatively be executed using pytest, e.g. obtained from PyPI (in this
+case, the PATH is configured automatically):
+
+    pytest

bitbake/bin/bitbake

@@ -27,7 +27,7 @@ from bb.main import bitbake_main, BitBakeConfigParameters, BBMainException
 
 bb.utils.check_system_locale()
 
-__version__ = "2.4.0"
+__version__ = "2.9.1"
 
 if __name__ == "__main__":
     if __version__ != bb.__version__:

bitbake/bin/bitbake-config-build

@@ -0,0 +1 @@
+bitbake-layers

bitbake/bin/bitbake-diffsigs

@@ -72,13 +72,17 @@ def find_siginfo_task(bbhandler, pn, taskname, sig1=None, sig2=None):
         elif sig2 not in sigfiles:
             logger.error('No sigdata files found matching %s %s with signature %s' % (pn, taskname, sig2))
             sys.exit(1)
-        latestfiles = [sigfiles[sig1], sigfiles[sig2]]
+
+        latestfiles = [sigfiles[sig1]['path'], sigfiles[sig2]['path']]
     else:
-        filedates = find_siginfo(bbhandler, pn, taskname)
-        latestfiles = sorted(filedates.keys(), key=lambda f: filedates[f])[-2:]
-        if not latestfiles:
+        sigfiles = find_siginfo(bbhandler, pn, taskname)
+        latestsigs = sorted(sigfiles.keys(), key=lambda h: sigfiles[h]['time'])[-2:]
+        if not latestsigs:
             logger.error('No sigdata files found matching %s %s' % (pn, taskname))
             sys.exit(1)
+        latestfiles = [sigfiles[latestsigs[0]]['path']]
+        if len(latestsigs) > 1:
+            latestfiles.append(sigfiles[latestsigs[1]]['path'])
 
     return latestfiles
 
@@ -96,7 +100,7 @@ def recursecb(key, hash1, hash2):
     elif hash2 not in hashfiles:
         recout.append("Unable to find matching sigdata for %s with hash %s" % (key, hash2))
     else:
-        out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb, color=color)
+        out2 = bb.siggen.compare_sigfiles(hashfiles[hash1]['path'], hashfiles[hash2]['path'], recursecb, color=color)
         for change in out2:
             for line in change.splitlines():
                 recout.append('    ' + line)

bitbake/bin/bitbake-getvar

@@ -16,6 +16,7 @@ bindir = os.path.dirname(__file__)
 topdir = os.path.dirname(bindir)
 sys.path[0:0] = [os.path.join(topdir, 'lib')]
 
+import bb.providers
 import bb.tinfoil
 
 if __name__ == "__main__":
@@ -26,26 +27,40 @@ if __name__ == "__main__":
     parser.add_argument('-f', '--flag', help='Specify a variable flag to query (with --value)', default=None)
     parser.add_argument('--value', help='Only report the value, no history and no variable name', action="store_true")
     parser.add_argument('-q', '--quiet', help='Silence bitbake server logging', action="store_true")
+    parser.add_argument('--ignore-undefined', help='Suppress any errors related to undefined variables', action="store_true")
     args = parser.parse_args()
 
-    if args.unexpand and not args.value:
-        print("--unexpand only makes sense with --value")
-        sys.exit(1)
+    if not args.value:
+        if args.unexpand:
+            sys.exit("--unexpand only makes sense with --value")
 
-    if args.flag and not args.value:
-        print("--flag only makes sense with --value")
-        sys.exit(1)
+        if args.flag:
+            sys.exit("--flag only makes sense with --value")
 
-    with bb.tinfoil.Tinfoil(tracking=True, setup_logging=not args.quiet) as tinfoil:
+    quiet = args.quiet or args.value
+    with bb.tinfoil.Tinfoil(tracking=True, setup_logging=not quiet) as tinfoil:
         if args.recipe:
-            tinfoil.prepare(quiet=2)
-            d = tinfoil.parse_recipe(args.recipe)
+            tinfoil.prepare(quiet=3 if quiet else 2)
+            try:
+                d = tinfoil.parse_recipe(args.recipe)
+            except bb.providers.NoProvider as e:
+                sys.exit(str(e))
         else:
             tinfoil.prepare(quiet=2, config_only=True)
-            d = tinfoil.config_data
+            # Expand keys and run anonymous functions to get identical result to
+            # "bitbake -e"
+            d = tinfoil.finalizeData()
+
+        value = None
         if args.flag:
-            print(str(d.getVarFlag(args.variable, args.flag, expand=(not args.unexpand))))
-        elif args.value:
-            print(str(d.getVar(args.variable, expand=(not args.unexpand))))
+            value = d.getVarFlag(args.variable, args.flag, expand=not args.unexpand)
+            if value is None and not args.ignore_undefined:
+                sys.exit(f"The flag '{args.flag}' is not defined for variable '{args.variable}'")
+        else:
+            value = d.getVar(args.variable, expand=not args.unexpand)
+            if value is None and not args.ignore_undefined:
+                sys.exit(f"The variable '{args.variable}' is not defined")
+        if args.value:
+            print(str(value if value is not None else ""))
         else:
             bb.data.emit_var(args.variable, d=d, all=True)

bitbake/bin/bitbake-hashclient

@@ -14,6 +14,10 @@ import sys
 import threading
 import time
 import warnings
+import netrc
+import json
+import statistics
+import textwrap
 warnings.simplefilter("default")
 
 try:
@@ -36,18 +40,42 @@ except ImportError:
 sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)), 'lib'))
 
 import hashserv
+import bb.asyncrpc
 
 DEFAULT_ADDRESS = 'unix://./hashserve.sock'
 METHOD = 'stress.test.method'
 
+def print_user(u):
+    print(f"Username:    {u['username']}")
+    if "permissions" in u:
+        print("Permissions: " + " ".join(u["permissions"]))
+    if "token" in u:
+        print(f"Token:       {u['token']}")
+
 
 def main():
+    def handle_get(args, client):
+        result = client.get_taskhash(args.method, args.taskhash, all_properties=True)
+        if not result:
+            return 0
+
+        print(json.dumps(result, sort_keys=True, indent=4))
+        return 0
+
+    def handle_get_outhash(args, client):
+        result = client.get_outhash(args.method, args.outhash, args.taskhash)
+        if not result:
+            return 0
+
+        print(json.dumps(result, sort_keys=True, indent=4))
+        return 0
+
     def handle_stats(args, client):
         if args.reset:
             s = client.reset_stats()
         else:
             s = client.get_stats()
-        pprint.pprint(s)
+        print(json.dumps(s, sort_keys=True, indent=4))
         return 0
 
     def handle_stress(args, client):
@@ -55,47 +83,59 @@ def main():
             nonlocal found_hashes
             nonlocal missed_hashes
             nonlocal max_time
+            nonlocal times
 
-            client = hashserv.create_client(args.address)
+            with hashserv.create_client(args.address) as client:
+                for i in range(args.requests):
+                    taskhash = hashlib.sha256()
+                    taskhash.update(args.taskhash_seed.encode('utf-8'))
+                    taskhash.update(str(i).encode('utf-8'))
 
-            for i in range(args.requests):
-                taskhash = hashlib.sha256()
-                taskhash.update(args.taskhash_seed.encode('utf-8'))
-                taskhash.update(str(i).encode('utf-8'))
+                    start_time = time.perf_counter()
+                    l = client.get_unihash(METHOD, taskhash.hexdigest())
+                    elapsed = time.perf_counter() - start_time
 
-                start_time = time.perf_counter()
-                l = client.get_unihash(METHOD, taskhash.hexdigest())
-                elapsed = time.perf_counter() - start_time
+                    with lock:
+                        if l:
+                            found_hashes += 1
+                        else:
+                            missed_hashes += 1
 
-                with lock:
-                    if l:
-                        found_hashes += 1
-                    else:
-                        missed_hashes += 1
-
-                    max_time = max(elapsed, max_time)
-                    pbar.update()
+                        times.append(elapsed)
+                        pbar.update()
 
         max_time = 0
         found_hashes = 0
         missed_hashes = 0
         lock = threading.Lock()
-        total_requests = args.clients * args.requests
+        times = []
         start_time = time.perf_counter()
-        with ProgressBar(total=total_requests) as pbar:
+        with ProgressBar(total=args.clients * args.requests) as pbar:
             threads = [threading.Thread(target=thread_main, args=(pbar, lock), daemon=False) for _ in range(args.clients)]
             for t in threads:
                 t.start()
 
             for t in threads:
                 t.join()
+        total_elapsed = time.perf_counter() - start_time
 
-        elapsed = time.perf_counter() - start_time
         with lock:
-            print("%d requests in %.1fs. %.1f requests per second" % (total_requests, elapsed, total_requests / elapsed))
-            print("Average request time %.8fs" % (elapsed / total_requests))
-            print("Max request time was %.8fs" % max_time)
-            print("Found %d hashes, missed %d" % (found_hashes, missed_hashes))
+            mean = statistics.mean(times)
+            median = statistics.median(times)
+            stddev = statistics.pstdev(times)
+
+            print(f"Number of clients:    {args.clients}")
+            print(f"Requests per client:  {args.requests}")
+            print(f"Number of requests:   {len(times)}")
+            print(f"Total elapsed time:   {total_elapsed:.3f}s")
+            print(f"Total request rate:   {len(times)/total_elapsed:.3f} req/s")
+            print(f"Average request time: {mean:.3f}s")
+            print(f"Median request time:  {median:.3f}s")
+            print(f"Request time std dev: {stddev:.3f}s")
+            print(f"Maximum request time: {max(times):.3f}s")
+            print(f"Minimum request time: {min(times):.3f}s")
+            print(f"Hashes found:         {found_hashes}")
+            print(f"Hashes missed:        {missed_hashes}")
 
         if args.report:
             with ProgressBar(total=args.requests) as pbar:
@@ -113,12 +153,152 @@ def main():
                     with lock:
                         pbar.update()
 
-    parser = argparse.ArgumentParser(description='Hash Equivalence Client')
+    def handle_remove(args, client):
+        where = {k: v for k, v in args.where}
+        if where:
+            result = client.remove(where)
+            print("Removed %d row(s)" % (result["count"]))
+        else:
+            print("No query specified")
+
+    def handle_clean_unused(args, client):
+        result = client.clean_unused(args.max_age)
+        print("Removed %d rows" % (result["count"]))
+        return 0
+
+    def handle_refresh_token(args, client):
+        r = client.refresh_token(args.username)
+        print_user(r)
+
+    def handle_set_user_permissions(args, client):
+        r = client.set_user_perms(args.username, args.permissions)
+        print_user(r)
+
+    def handle_get_user(args, client):
+        r = client.get_user(args.username)
+        print_user(r)
+
+    def handle_get_all_users(args, client):
+        users = client.get_all_users()
+        print("{username:20}| {permissions}".format(username="Username", permissions="Permissions"))
+        print(("-" * 20) + "+" + ("-" * 20))
+        for u in users:
+            print("{username:20}| {permissions}".format(username=u["username"], permissions=" ".join(u["permissions"])))
+
+    def handle_new_user(args, client):
+        r = client.new_user(args.username, args.permissions)
+        print_user(r)
+
+    def handle_delete_user(args, client):
+        r = client.delete_user(args.username)
+        print_user(r)
+
+    def handle_get_db_usage(args, client):
+        usage = client.get_db_usage()
+        print(usage)
+        tables = sorted(usage.keys())
+        print("{name:20}| {rows:20}".format(name="Table name", rows="Rows"))
+        print(("-" * 20) + "+" + ("-" * 20))
+        for t in tables:
+            print("{name:20}| {rows:<20}".format(name=t, rows=usage[t]["rows"]))
+        print()
+
+        total_rows = sum(t["rows"] for t in usage.values())
+        print(f"Total rows: {total_rows}")
+
+    def handle_get_db_query_columns(args, client):
+        columns = client.get_db_query_columns()
+        print("\n".join(sorted(columns)))
+
+    def handle_gc_status(args, client):
+        result = client.gc_status()
+        if not result["mark"]:
+            print("No Garbage collection in progress")
+            return 0
+
+        print("Current Mark: %s" % result["mark"])
+        print("Total hashes to keep: %d" % result["keep"])
+        print("Total hashes to remove: %s" % result["remove"])
+        return 0
+
+    def handle_gc_mark(args, client):
+        where = {k: v for k, v in args.where}
+        result = client.gc_mark(args.mark, where)
+        print("New hashes marked: %d" % result["count"])
+        return 0
+
+    def handle_gc_sweep(args, client):
+        result = client.gc_sweep(args.mark)
+        print("Removed %d rows" % result["count"])
+        return 0
+
+    def handle_unihash_exists(args, client):
+        result = client.unihash_exists(args.unihash)
+        if args.quiet:
+            return 0 if result else 1
+
+        print("true" if result else "false")
+        return 0
+
+    def handle_ping(args, client):
+        times = []
+        for i in range(1, args.count + 1):
+            if not args.quiet:
+                print(f"Ping {i} of {args.count}... ", end="")
+            start_time = time.perf_counter()
+            client.ping()
+            elapsed = time.perf_counter() - start_time
+            times.append(elapsed)
+            if not args.quiet:
+                print(f"{elapsed:.3f}s")
+
+        mean = statistics.mean(times)
+        median = statistics.median(times)
+        std_dev = statistics.pstdev(times)
+
+        if not args.quiet:
+            print("------------------------")
+        print(f"Number of pings:         {len(times)}")
+        print(f"Average round trip time: {mean:.3f}s")
+        print(f"Median round trip time:  {median:.3f}s")
+        print(f"Round trip time std dev: {std_dev:.3f}s")
+        print(f"Min time is:             {min(times):.3f}s")
+        print(f"Max time is:             {max(times):.3f}s")
+        return 0
+
+    parser = argparse.ArgumentParser(
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        description='Hash Equivalence Client',
+        epilog=textwrap.dedent(
+            """
+            Possible ADDRESS options are:
+                unix://PATH         Connect to UNIX domain socket at PATH
+                ws://HOST[:PORT]    Connect to websocket at HOST:PORT (default port is 80)
+                wss://HOST[:PORT]   Connect to secure websocket at HOST:PORT (default port is 443)
+                HOST:PORT           Connect to TCP server at HOST:PORT
+            """
+        ),
+    )
     parser.add_argument('--address', default=DEFAULT_ADDRESS, help='Server address (default "%(default)s")')
     parser.add_argument('--log', default='WARNING', help='Set logging level')
+    parser.add_argument('--login', '-l', metavar="USERNAME", help="Authenticate as USERNAME")
+    parser.add_argument('--password', '-p', metavar="TOKEN", help="Authenticate using token TOKEN")
+    parser.add_argument('--become', '-b', metavar="USERNAME", help="Impersonate user USERNAME (if allowed) when performing actions")
+    parser.add_argument('--no-netrc', '-n', action="store_false", dest="netrc", help="Do not use .netrc")
 
     subparsers = parser.add_subparsers()
 
+    get_parser = subparsers.add_parser('get', help="Get the unihash for a taskhash")
+    get_parser.add_argument("method", help="Method to query")
+    get_parser.add_argument("taskhash", help="Task hash to query")
+    get_parser.set_defaults(func=handle_get)
+
+    get_outhash_parser = subparsers.add_parser('get-outhash', help="Get output hash information")
+    get_outhash_parser.add_argument("method", help="Method to query")
+    get_outhash_parser.add_argument("outhash", help="Output hash to query")
+    get_outhash_parser.add_argument("taskhash", help="Task hash to query")
+    get_outhash_parser.set_defaults(func=handle_get_outhash)
+
     stats_parser = subparsers.add_parser('stats', help='Show server stats')
     stats_parser.add_argument('--reset', action='store_true',
                               help='Reset server stats')
@@ -137,6 +317,69 @@ def main():
                                help='Include string in outhash')
     stress_parser.set_defaults(func=handle_stress)
 
+    remove_parser = subparsers.add_parser('remove', help="Remove hash entries")
+    remove_parser.add_argument("--where", "-w", metavar="KEY VALUE", nargs=2, action="append", default=[],
+                               help="Remove entries from table where KEY == VALUE")
+    remove_parser.set_defaults(func=handle_remove)
+
+    clean_unused_parser = subparsers.add_parser('clean-unused', help="Remove unused database entries")
+    clean_unused_parser.add_argument("max_age", metavar="SECONDS", type=int, help="Remove unused entries older than SECONDS old")
+    clean_unused_parser.set_defaults(func=handle_clean_unused)
+
+    refresh_token_parser = subparsers.add_parser('refresh-token', help="Refresh auth token")
+    refresh_token_parser.add_argument("--username", "-u", help="Refresh the token for another user (if authorized)")
+    refresh_token_parser.set_defaults(func=handle_refresh_token)
+
+    set_user_perms_parser = subparsers.add_parser('set-user-perms', help="Set new permissions for user")
+    set_user_perms_parser.add_argument("--username", "-u", help="Username", required=True)
+    set_user_perms_parser.add_argument("permissions", metavar="PERM", nargs="*", default=[], help="New permissions")
+    set_user_perms_parser.set_defaults(func=handle_set_user_permissions)
+
+    get_user_parser = subparsers.add_parser('get-user', help="Get user")
+    get_user_parser.add_argument("--username", "-u", help="Username")
+    get_user_parser.set_defaults(func=handle_get_user)
+
+    get_all_users_parser = subparsers.add_parser('get-all-users', help="List all users")
+    get_all_users_parser.set_defaults(func=handle_get_all_users)
+
+    new_user_parser = subparsers.add_parser('new-user', help="Create new user")
+    new_user_parser.add_argument("--username", "-u", help="Username", required=True)
+    new_user_parser.add_argument("permissions", metavar="PERM", nargs="*", default=[], help="New permissions")
+    new_user_parser.set_defaults(func=handle_new_user)
+
+    delete_user_parser = subparsers.add_parser('delete-user', help="Delete user")
+    delete_user_parser.add_argument("--username", "-u", help="Username", required=True)
+    delete_user_parser.set_defaults(func=handle_delete_user)
+
+    db_usage_parser = subparsers.add_parser('get-db-usage', help="Database Usage")
+    db_usage_parser.set_defaults(func=handle_get_db_usage)
+
+    db_query_columns_parser = subparsers.add_parser('get-db-query-columns', help="Show columns that can be used in database queries")
+    db_query_columns_parser.set_defaults(func=handle_get_db_query_columns)
+
+    gc_status_parser = subparsers.add_parser("gc-status", help="Show garbage collection status")
+    gc_status_parser.set_defaults(func=handle_gc_status)
+
+    gc_mark_parser = subparsers.add_parser('gc-mark', help="Mark hashes to be kept for garbage collection")
+    gc_mark_parser.add_argument("mark", help="Mark for this garbage collection operation")
+    gc_mark_parser.add_argument("--where", "-w", metavar="KEY VALUE", nargs=2, action="append", default=[],
+                             help="Keep entries in table where KEY == VALUE")
+    gc_mark_parser.set_defaults(func=handle_gc_mark)
+
+    gc_sweep_parser = subparsers.add_parser('gc-sweep', help="Perform garbage collection and delete any entries that are not marked")
+    gc_sweep_parser.add_argument("mark", help="Mark for this garbage collection operation")
+    gc_sweep_parser.set_defaults(func=handle_gc_sweep)
+
+    unihash_exists_parser = subparsers.add_parser('unihash-exists', help="Check if a unihash is known to the server")
+    unihash_exists_parser.add_argument("--quiet", action="store_true", help="Don't print status. Instead, exit with 0 if unihash exists and 1 if it does not")
+    unihash_exists_parser.add_argument("unihash", help="Unihash to check")
+    unihash_exists_parser.set_defaults(func=handle_unihash_exists)
+
+    ping_parser = subparsers.add_parser('ping', help="Ping server")
+    ping_parser.add_argument("-n", "--count", type=int, help="Number of pings. Default is %(default)s", default=10)
+    ping_parser.add_argument("-q", "--quiet", action="store_true", help="Don't print each ping; only print results")
+    ping_parser.set_defaults(func=handle_ping)
+
     args = parser.parse_args()
 
     logger = logging.getLogger('hashserv')
@@ -150,11 +393,30 @@ def main():
     console.setLevel(level)
     logger.addHandler(console)
 
+    login = args.login
+    password = args.password
+
+    if login is None and args.netrc:
+        try:
+            n = netrc.netrc()
+            auth = n.authenticators(args.address)
+            if auth is not None:
+                login, _, password = auth
+        except FileNotFoundError:
+            pass
+        except netrc.NetrcParseError as e:
+            sys.stderr.write(f"Error parsing {e.filename}:{e.lineno}: {e.msg}\n")
+
     func = getattr(args, 'func', None)
     if func:
-        client = hashserv.create_client(args.address)
-
-        return func(args, client)
+        try:
+            with hashserv.create_client(args.address, login, password) as client:
+                if args.become:
+                    client.become_user(args.become)
+                return func(args, client)
+        except bb.asyncrpc.InvokeError as e:
+            print(f"ERROR: {e}")
+            return 1
 
     return 0
 

bitbake/bin/bitbake-hashserv

@@ -11,56 +11,169 @@ import logging
 import argparse
 import sqlite3
 import warnings
+
 warnings.simplefilter("default")
 
-sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)), 'lib'))
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)), "lib"))
 
 import hashserv
+from hashserv.server import DEFAULT_ANON_PERMS
 
 VERSION = "1.0.0"
 
-DEFAULT_BIND = 'unix://./hashserve.sock'
+DEFAULT_BIND = "unix://./hashserve.sock"
 
 
 def main():
-    parser = argparse.ArgumentParser(description='Hash Equivalence Reference Server. Version=%s' % VERSION,
-                                     epilog='''The bind address is the path to a unix domain socket if it is
-                                               prefixed with "unix://". Otherwise, it is an IP address
-                                               and port in form ADDRESS:PORT. To bind to all addresses, leave
-                                               the ADDRESS empty, e.g. "--bind :8686". To bind to a specific
-                                               IPv6 address, enclose the address in "[]", e.g.
-                                               "--bind [::1]:8686"'''
-                                     )
+    parser = argparse.ArgumentParser(
+        description="Hash Equivalence Reference Server. Version=%s" % VERSION,
+        formatter_class=argparse.RawTextHelpFormatter,
+        epilog="""
+The bind address may take one of the following formats:
+    unix://PATH         - Bind to unix domain socket at PATH
+    ws://ADDRESS:PORT   - Bind to websocket on ADDRESS:PORT
+    ADDRESS:PORT        - Bind to raw TCP socket on ADDRESS:PORT
 
-    parser.add_argument('-b', '--bind', default=DEFAULT_BIND, help='Bind address (default "%(default)s")')
-    parser.add_argument('-d', '--database', default='./hashserv.db', help='Database file (default "%(default)s")')
-    parser.add_argument('-l', '--log', default='WARNING', help='Set logging level')
-    parser.add_argument('-u', '--upstream', help='Upstream hashserv to pull hashes from')
-    parser.add_argument('-r', '--read-only', action='store_true', help='Disallow write operations from clients')
+To bind to all addresses, leave the ADDRESS empty, e.g. "--bind :8686" or
+"--bind ws://:8686". To bind to a specific IPv6 address, enclose the address in
+"[]", e.g. "--bind [::1]:8686" or "--bind ws://[::1]:8686"
+
+Note that the default Anonymous permissions are designed to not break existing
+server instances when upgrading, but are not particularly secure defaults. If
+you want to use authentication, it is recommended that you use "--anon-perms
+@read" to only give anonymous users read access, or "--anon-perms @none" to
+give un-authenticated users no access at all.
+
+Setting "--anon-perms @all" or "--anon-perms @user-admin" is not allowed, since
+this would allow anonymous users to manage all users accounts, which is a bad
+idea.
+
+If you are using user authentication, you should run your server in websockets
+mode with an SSL terminating load balancer in front of it (as this server does
+not implement SSL). Otherwise all usernames and passwords will be transmitted
+in the clear. When configured this way, clients can connect using a secure
+websocket, as in "wss://SERVER:PORT"
+
+The following permissions are supported by the server:
+
+    @none       - No permissions
+    @read       - The ability to read equivalent hashes from the server
+    @report     - The ability to report equivalent hashes to the server
+    @db-admin   - Manage the hash database(s). This includes cleaning the
+                  database, removing hashes, etc.
+    @user-admin - The ability to manage user accounts. This includes, creating
+                  users, deleting users, resetting login tokens, and assigning
+                  permissions.
+    @all        - All possible permissions, including any that may be added
+                  in the future
+        """,
+    )
+
+    parser.add_argument(
+        "-b",
+        "--bind",
+        default=os.environ.get("HASHSERVER_BIND", DEFAULT_BIND),
+        help='Bind address (default $HASHSERVER_BIND, "%(default)s")',
+    )
+    parser.add_argument(
+        "-d",
+        "--database",
+        default=os.environ.get("HASHSERVER_DB", "./hashserv.db"),
+        help='Database file (default $HASHSERVER_DB, "%(default)s")',
+    )
+    parser.add_argument(
+        "-l",
+        "--log",
+        default=os.environ.get("HASHSERVER_LOG_LEVEL", "WARNING"),
+        help='Set logging level (default $HASHSERVER_LOG_LEVEL, "%(default)s")',
+    )
+    parser.add_argument(
+        "-u",
+        "--upstream",
+        default=os.environ.get("HASHSERVER_UPSTREAM", None),
+        help="Upstream hashserv to pull hashes from ($HASHSERVER_UPSTREAM)",
+    )
+    parser.add_argument(
+        "-r",
+        "--read-only",
+        action="store_true",
+        help="Disallow write operations from clients ($HASHSERVER_READ_ONLY)",
+    )
+    parser.add_argument(
+        "--db-username",
+        default=os.environ.get("HASHSERVER_DB_USERNAME", None),
+        help="Database username ($HASHSERVER_DB_USERNAME)",
+    )
+    parser.add_argument(
+        "--db-password",
+        default=os.environ.get("HASHSERVER_DB_PASSWORD", None),
+        help="Database password ($HASHSERVER_DB_PASSWORD)",
+    )
+    parser.add_argument(
+        "--anon-perms",
+        metavar="PERM[,PERM[,...]]",
+        default=os.environ.get("HASHSERVER_ANON_PERMS", ",".join(DEFAULT_ANON_PERMS)),
+        help='Permissions to give anonymous users (default $HASHSERVER_ANON_PERMS, "%(default)s")',
+    )
+    parser.add_argument(
+        "--admin-user",
+        default=os.environ.get("HASHSERVER_ADMIN_USER", None),
+        help="Create default admin user with name ADMIN_USER ($HASHSERVER_ADMIN_USER)",
+    )
+    parser.add_argument(
+        "--admin-password",
+        default=os.environ.get("HASHSERVER_ADMIN_PASSWORD", None),
+        help="Create default admin user with password ADMIN_PASSWORD ($HASHSERVER_ADMIN_PASSWORD)",
+    )
+    parser.add_argument(
+        "--reuseport",
+        action="store_true",
+        help="Enable SO_REUSEPORT, allowing multiple servers to bind to the same port for load balancing",
+    )
 
     args = parser.parse_args()
 
-    logger = logging.getLogger('hashserv')
+    logger = logging.getLogger("hashserv")
 
     level = getattr(logging, args.log.upper(), None)
     if not isinstance(level, int):
-        raise ValueError('Invalid log level: %s' % args.log)
+        raise ValueError(
+            "Invalid log level: %s (Try ERROR/WARNING/INFO/DEBUG)" % args.log
+        )
 
     logger.setLevel(level)
     console = logging.StreamHandler()
     console.setLevel(level)
     logger.addHandler(console)
 
-    server = hashserv.create_server(args.bind, args.database, upstream=args.upstream, read_only=args.read_only)
+    read_only = (os.environ.get("HASHSERVER_READ_ONLY", "0") == "1") or args.read_only
+    if "," in args.anon_perms:
+        anon_perms = args.anon_perms.split(",")
+    else:
+        anon_perms = args.anon_perms.split()
+
+    server = hashserv.create_server(
+        args.bind,
+        args.database,
+        upstream=args.upstream,
+        read_only=read_only,
+        db_username=args.db_username,
+        db_password=args.db_password,
+        anon_perms=anon_perms,
+        admin_username=args.admin_user,
+        admin_password=args.admin_password,
+        reuseport=args.reuseport,
+    )
     server.serve_forever()
     return 0
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     try:
         ret = main()
     except Exception:
         ret = 1
         import traceback
+
         traceback.print_exc()
     sys.exit(ret)

bitbake/bin/bitbake-layers

@@ -18,13 +18,14 @@ import warnings
 warnings.simplefilter("default")
 
 bindir = os.path.dirname(__file__)
+toolname = os.path.basename(__file__).split(".")[0]
 topdir = os.path.dirname(bindir)
 sys.path[0:0] = [os.path.join(topdir, 'lib')]
 
 import bb.tinfoil
 import bb.msg
 
-logger = bb.msg.logger_create('bitbake-layers', sys.stdout)
+logger = bb.msg.logger_create(toolname, sys.stdout)
 
 def main():
     parser = argparse.ArgumentParser(
@@ -33,7 +34,7 @@ def main():
         add_help=False)
     parser.add_argument('-d', '--debug', help='Enable debug output', action='store_true')
     parser.add_argument('-q', '--quiet', help='Print only errors', action='store_true')
-    parser.add_argument('-F', '--force', help='Force add without recipe parse verification', action='store_true')
+    parser.add_argument('-F', '--force', help='Forced execution: can be specified multiple times. -F will force add without recipe parse verification and -FF will additionally force the run withput layer parsing.', action='count', default=0)
     parser.add_argument('--color', choices=['auto', 'always', 'never'], default='auto', help='Colorize output (where %(metavar)s is %(choices)s)', metavar='COLOR')
 
     global_args, unparsed_args = parser.parse_known_args()
@@ -57,18 +58,23 @@ def main():
                          level=logger.getEffectiveLevel())
 
     plugins = []
-    tinfoil = bb.tinfoil.Tinfoil(tracking=True)
-    tinfoil.logger.setLevel(logger.getEffectiveLevel())
-    try:
-        tinfoil.prepare(True)
-        for path in ([topdir] +
-                    tinfoil.config_data.getVar('BBPATH').split(':')):
-            pluginpath = os.path.join(path, 'lib', 'bblayers')
+    with bb.tinfoil.Tinfoil(tracking=True) as tinfoil:
+        tinfoil.logger.setLevel(logger.getEffectiveLevel())
+
+        if global_args.force > 1:
+            bbpaths = []
+        else:
+            tinfoil.prepare(True)
+            bbpaths = tinfoil.config_data.getVar('BBPATH').split(':')
+
+        for path in ([topdir] + bbpaths):
+            pluginbasepath = {"bitbake-layers":'bblayers', 'bitbake-config-build':'bbconfigbuild'}[toolname]
+            pluginpath = os.path.join(path, 'lib', pluginbasepath)
             bb.utils.load_plugins(logger, plugins, pluginpath)
 
         registered = False
         for plugin in plugins:
-            if hasattr(plugin, 'tinfoil_init'):
+            if hasattr(plugin, 'tinfoil_init') and global_args.force <= 1:
                 plugin.tinfoil_init(tinfoil)
             if hasattr(plugin, 'register_commands'):
                 registered = True
@@ -86,8 +92,6 @@ def main():
             tinfoil.config_data.enableTracking()
 
         return args.func(args)
-    finally:
-        tinfoil.shutdown()
 
 
 if __name__ == "__main__":

bitbake/bin/bitbake-prserv

@@ -7,49 +7,97 @@
 
 import os
 import sys,logging
-import optparse
+import argparse
 import warnings
 warnings.simplefilter("default")
 
-sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)),'lib'))
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)), "lib"))
 
 import prserv
 import prserv.serv
 
-__version__="1.0.0"
+VERSION = "2.0.0"
 
-PRHOST_DEFAULT='0.0.0.0'
+PRHOST_DEFAULT="0.0.0.0"
 PRPORT_DEFAULT=8585
 
+def init_logger(logfile, loglevel):
+    numeric_level = getattr(logging, loglevel.upper(), None)
+    if not isinstance(numeric_level, int):
+        raise ValueError("Invalid log level: %s" % loglevel)
+    FORMAT = "%(asctime)-15s %(message)s"
+    logging.basicConfig(level=numeric_level, filename=logfile, format=FORMAT)
+
 def main():
-    parser = optparse.OptionParser(
-        version="Bitbake PR Service Core version %s, %%prog version %s" % (prserv.__version__, __version__),
-        usage = "%prog < --start | --stop > [options]")
+    parser = argparse.ArgumentParser(
+        description="BitBake PR Server. Version=%s" % VERSION,
+        formatter_class=argparse.RawTextHelpFormatter)
 
-    parser.add_option("-f", "--file", help="database filename(default: prserv.sqlite3)", action="store",
-                      dest="dbfile", type="string", default="prserv.sqlite3")
-    parser.add_option("-l", "--log", help="log filename(default: prserv.log)", action="store",
-                      dest="logfile", type="string", default="prserv.log")
-    parser.add_option("--loglevel", help="logging level, i.e. CRITICAL, ERROR, WARNING, INFO, DEBUG",
-                      action = "store", type="string", dest="loglevel", default = "INFO")
-    parser.add_option("--start", help="start daemon",
-                      action="store_true", dest="start")
-    parser.add_option("--stop", help="stop daemon",
-                      action="store_true", dest="stop")
-    parser.add_option("--host", help="ip address to bind", action="store",
-                      dest="host", type="string", default=PRHOST_DEFAULT)
-    parser.add_option("--port", help="port number(default: 8585)", action="store",
-                      dest="port", type="int", default=PRPORT_DEFAULT)
-    parser.add_option("-r", "--read-only", help="open database in read-only mode",
-                      action="store_true")
+    parser.add_argument(
+        "-f",
+        "--file",
+        default="prserv.sqlite3",
+        help="database filename (default: prserv.sqlite3)",
+    )
+    parser.add_argument(
+        "-l",
+        "--log",
+        default="prserv.log",
+        help="log filename(default: prserv.log)",
+    )
+    parser.add_argument(
+        "--loglevel",
+        default="INFO",
+        help="logging level, i.e. CRITICAL, ERROR, WARNING, INFO, DEBUG",
+    )
+    parser.add_argument(
+        "--start",
+        action="store_true",
+        help="start daemon",
+    )
+    parser.add_argument(
+        "--stop",
+        action="store_true",
+        help="stop daemon",
+    )
+    parser.add_argument(
+        "--host",
+        help="ip address to bind",
+        default=PRHOST_DEFAULT,
+    )
+    parser.add_argument(
+        "--port",
+        type=int,
+        default=PRPORT_DEFAULT,
+        help="port number (default: 8585)",
+    )
+    parser.add_argument(
+        "-r",
+        "--read-only",
+        action="store_true",
+        help="open database in read-only mode",
+    )
+    parser.add_argument(
+        "-u",
+        "--upstream",
+        default=os.environ.get("PRSERV_UPSTREAM", None),
+        help="Upstream PR service (host:port)",
+    )
 
-    options, args = parser.parse_args(sys.argv)
-    prserv.init_logger(os.path.abspath(options.logfile),options.loglevel)
+    args = parser.parse_args()
+    init_logger(os.path.abspath(args.log), args.loglevel)
 
-    if options.start:
-        ret=prserv.serv.start_daemon(options.dbfile, options.host, options.port,os.path.abspath(options.logfile), options.read_only)
-    elif options.stop:
-        ret=prserv.serv.stop_daemon(options.host, options.port)
+    if args.start:
+        ret=prserv.serv.start_daemon(
+            args.file,
+            args.host,
+            args.port,
+            os.path.abspath(args.log),
+            args.read_only,
+            args.upstream
+        )
+    elif args.stop:
+        ret=prserv.serv.stop_daemon(args.host, args.port)
     else:
         ret=parser.print_help()
     return ret

bitbake/bin/bitbake-selftest

@@ -15,6 +15,7 @@ import unittest
 try:
     import bb
     import hashserv
+    import prserv
     import layerindexlib
 except RuntimeError as exc:
     sys.exit(str(exc))
@@ -27,12 +28,12 @@ tests = ["bb.tests.codeparser",
          "bb.tests.event",
          "bb.tests.fetch",
          "bb.tests.parse",
-         "bb.tests.persist_data",
          "bb.tests.runqueue",
          "bb.tests.siggen",
          "bb.tests.utils",
          "bb.tests.compression",
          "hashserv.tests",
+         "prserv.tests",
          "layerindexlib.tests.layerindexobj",
          "layerindexlib.tests.restapi",
          "layerindexlib.tests.cooker"]

bitbake/bin/bitbake-server

@@ -38,9 +38,9 @@ if xmlrpcinterface[0] == "None":
 with open('/dev/null', 'r') as si:
     os.dup2(si.fileno(), sys.stdin.fileno())
 
-so = open(logfile, 'a+')
-os.dup2(so.fileno(), sys.stdout.fileno())
-os.dup2(so.fileno(), sys.stderr.fileno())
+with open(logfile, 'a+') as so:
+    os.dup2(so.fileno(), sys.stdout.fileno())
+    os.dup2(so.fileno(), sys.stderr.fileno())
 
 # Have stdout and stderr be the same so log output matches chronologically
 # and there aren't two seperate buffers

bitbake/bin/bitbake-worker

@@ -21,9 +21,14 @@ import traceback
 import queue
 import shlex
 import subprocess
+import fcntl
 from multiprocessing import Lock
 from threading import Thread
 
+# Remove when we have a minimum of python 3.10
+if not hasattr(fcntl, 'F_SETPIPE_SZ'):
+    fcntl.F_SETPIPE_SZ = 1031
+
 bb.utils.check_system_locale()
 
 # Users shouldn't be running this code directly
@@ -44,7 +49,6 @@ if sys.argv[1].startswith("decafbadbad"):
 # updates to log files for use with tail
 try:
     if sys.stdout.name == '<stdout>':
-        import fcntl
         fl = fcntl.fcntl(sys.stdout.fileno(), fcntl.F_GETFL)
         fl |= os.O_SYNC 
         fcntl.fcntl(sys.stdout.fileno(), fcntl.F_SETFL, fl)
@@ -56,6 +60,12 @@ logger = logging.getLogger("BitBake")
 
 worker_pipe = sys.stdout.fileno()
 bb.utils.nonblockingfd(worker_pipe)
+# Try to make the pipe buffers larger as it is much more efficient. If we can't
+# e.g. out of buffer space (/proc/sys/fs/pipe-user-pages-soft) then just pass over.
+try:
+    fcntl.fcntl(worker_pipe, fcntl.F_SETPIPE_SZ, 512 * 1024)
+except:
+    pass
 # Need to guard against multiprocessing being used in child processes
 # and multiple processes trying to write to the parent at the same time
 worker_pipe_lock = None
@@ -91,21 +101,21 @@ def worker_fire_prepickled(event):
 worker_thread_exit = False
 
 def worker_flush(worker_queue):
-    worker_queue_int = b""
+    worker_queue_int = bytearray()
     global worker_pipe, worker_thread_exit
 
     while True:
         try:
-            worker_queue_int = worker_queue_int + worker_queue.get(True, 1)
+            worker_queue_int.extend(worker_queue.get(True, 1))
         except queue.Empty:
             pass
         while (worker_queue_int or not worker_queue.empty()):
             try:
                 (_, ready, _) = select.select([], [worker_pipe], [], 1)
                 if not worker_queue.empty():
-                    worker_queue_int = worker_queue_int + worker_queue.get()
+                    worker_queue_int.extend(worker_queue.get())
                 written = os.write(worker_pipe, worker_queue_int)
-                worker_queue_int = worker_queue_int[written:]
+                del worker_queue_int[0:written]
             except (IOError, OSError) as e:
                 if e.errno != errno.EAGAIN and e.errno != errno.EPIPE:
                     raise
@@ -151,6 +161,7 @@ def fork_off_task(cfg, data, databuilder, workerdata, extraconfigdata, runtask):
     taskhash = runtask['taskhash']
     unihash = runtask['unihash']
     appends = runtask['appends']
+    layername = runtask['layername']
     taskdepdata = runtask['taskdepdata']
     quieterrors = runtask['quieterrors']
     # We need to setup the environment BEFORE the fork, since
@@ -182,7 +193,7 @@ def fork_off_task(cfg, data, databuilder, workerdata, extraconfigdata, runtask):
     if 'fakeroot' in taskdep and taskname in taskdep['fakeroot'] and not dry_run:
         fakeroot = True
         envvars = (runtask['fakerootenv'] or "").split()
-        for key, value in (var.split('=') for var in envvars):
+        for key, value in (var.split('=',1) for var in envvars):
             envbackup[key] = os.environ.get(key)
             os.environ[key] = value
             fakeenv[key] = value
@@ -194,7 +205,7 @@ def fork_off_task(cfg, data, databuilder, workerdata, extraconfigdata, runtask):
                         (fn, taskname, ', '.join(fakedirs)))
     else:
         envvars = (runtask['fakerootnoenv'] or "").split()
-        for key, value in (var.split('=') for var in envvars):
+        for key, value in (var.split('=',1) for var in envvars):
             envbackup[key] = os.environ.get(key)
             os.environ[key] = value
             fakeenv[key] = value
@@ -236,11 +247,13 @@ def fork_off_task(cfg, data, databuilder, workerdata, extraconfigdata, runtask):
             # Let SIGHUP exit as SIGTERM
             signal.signal(signal.SIGHUP, sigterm_handler)
 
-            # No stdin
-            newsi = os.open(os.devnull, os.O_RDWR)
-            os.dup2(newsi, sys.stdin.fileno())
+            # No stdin & stdout
+            # stdout is used as a status report channel and must not be used by child processes.
+            dumbio = os.open(os.devnull, os.O_RDWR)
+            os.dup2(dumbio, sys.stdin.fileno())
+            os.dup2(dumbio, sys.stdout.fileno())
 
-            if umask:
+            if umask is not None:
                 os.umask(umask)
 
             try:
@@ -262,7 +275,7 @@ def fork_off_task(cfg, data, databuilder, workerdata, extraconfigdata, runtask):
                     bb.parse.siggen.set_taskhashes(workerdata["newhashes"])
                 ret = 0
 
-                the_data = databuilder.parseRecipe(fn, appends)
+                the_data = databuilder.parseRecipe(fn, appends, layername)
                 the_data.setVar('BB_TASKHASH', taskhash)
                 the_data.setVar('BB_UNIHASH', unihash)
                 bb.parse.siggen.setup_datacache_from_datastore(fn, the_data)
@@ -304,6 +317,10 @@ def fork_off_task(cfg, data, databuilder, workerdata, extraconfigdata, runtask):
                 if not quieterrors:
                     logger.critical(traceback.format_exc())
                 os._exit(1)
+
+            sys.stdout.flush()
+            sys.stderr.flush()
+
             try:
                 if dry_run:
                     return 0
@@ -345,12 +362,12 @@ class runQueueWorkerPipe():
         if pipeout:
             pipeout.close()
         bb.utils.nonblockingfd(self.input)
-        self.queue = b""
+        self.queue = bytearray()
 
     def read(self):
         start = len(self.queue)
         try:
-            self.queue = self.queue + (self.input.read(102400) or b"")
+            self.queue.extend(self.input.read(512*1024) or b"")
         except (OSError, IOError) as e:
             if e.errno != errno.EAGAIN:
                 raise
@@ -378,7 +395,7 @@ class BitbakeWorker(object):
     def __init__(self, din):
         self.input = din
         bb.utils.nonblockingfd(self.input)
-        self.queue = b""
+        self.queue = bytearray()
         self.cookercfg = None
         self.databuilder = None
         self.data = None
@@ -412,7 +429,7 @@ class BitbakeWorker(object):
                     if len(r) == 0:
                         # EOF on pipe, server must have terminated
                         self.sigterm_exception(signal.SIGTERM, None)
-                    self.queue = self.queue + r
+                    self.queue.extend(r)
                 except (OSError, IOError):
                     pass
             if len(self.queue):
@@ -432,18 +449,30 @@ class BitbakeWorker(object):
                 while self.process_waitpid():
                     continue
 
-
     def handle_item(self, item, func):
-        if self.queue.startswith(b"<" + item + b">"):
-            index = self.queue.find(b"</" + item + b">")
-            while index != -1:
-                try:
-                    func(self.queue[(len(item) + 2):index])
-                except pickle.UnpicklingError:
-                    workerlog_write("Unable to unpickle data: %s\n" % ":".join("{:02x}".format(c) for c in self.queue))
-                    raise
-                self.queue = self.queue[(index + len(item) + 3):]
-                index = self.queue.find(b"</" + item + b">")
+        opening_tag = b"<" + item + b">"
+        if not self.queue.startswith(opening_tag):
+            return
+
+        tag_len = len(opening_tag)
+        if len(self.queue) < tag_len + 4:
+            # we need to receive more data
+            return
+        header = self.queue[tag_len:tag_len + 4]
+        payload_len = int.from_bytes(header, 'big')
+        # closing tag has length (tag_len + 1)
+        if len(self.queue) < tag_len * 2 + 1 + payload_len:
+            # we need to receive more data
+            return
+
+        index = self.queue.find(b"</" + item + b">")
+        if index != -1:
+            try:
+                func(self.queue[(tag_len + 4):index])
+            except pickle.UnpicklingError:
+                workerlog_write("Unable to unpickle data: %s\n" % ":".join("{:02x}".format(c) for c in self.queue))
+                raise
+            self.queue = self.queue[(index + len(b"</") + len(item) + len(b">")):]
 
     def handle_cookercfg(self, data):
         self.cookercfg = pickle.loads(data)

bitbake/bin/git-make-shallow

@@ -24,15 +24,17 @@ warnings.simplefilter("default")
 version = 1.0
 
 
+git_cmd = ['git', '-c', 'safe.bareRepository=all']
+
 def main():
     if sys.version_info < (3, 4, 0):
         sys.exit('Python 3.4 or greater is required')
 
-    git_dir = check_output(['git', 'rev-parse', '--git-dir']).rstrip()
+    git_dir = check_output(git_cmd + ['rev-parse', '--git-dir']).rstrip()
     shallow_file = os.path.join(git_dir, 'shallow')
     if os.path.exists(shallow_file):
         try:
-            check_output(['git', 'fetch', '--unshallow'])
+            check_output(git_cmd + ['fetch', '--unshallow'])
         except subprocess.CalledProcessError:
             try:
                 os.unlink(shallow_file)
@@ -41,21 +43,21 @@ def main():
                     raise
 
     args = process_args()
-    revs = check_output(['git', 'rev-list'] + args.revisions).splitlines()
+    revs = check_output(git_cmd + ['rev-list'] + args.revisions).splitlines()
 
     make_shallow(shallow_file, args.revisions, args.refs)
 
-    ref_revs = check_output(['git', 'rev-list'] + args.refs).splitlines()
+    ref_revs = check_output(git_cmd + ['rev-list'] + args.refs).splitlines()
     remaining_history = set(revs) & set(ref_revs)
     for rev in remaining_history:
-        if check_output(['git', 'rev-parse', '{}^@'.format(rev)]):
+        if check_output(git_cmd + ['rev-parse', '{}^@'.format(rev)]):
             sys.exit('Error: %s was not made shallow' % rev)
 
     filter_refs(args.refs)
 
     if args.shrink:
         shrink_repo(git_dir)
-        subprocess.check_call(['git', 'fsck', '--unreachable'])
+        subprocess.check_call(git_cmd + ['fsck', '--unreachable'])
 
 
 def process_args():
@@ -72,12 +74,12 @@ def process_args():
     args = parser.parse_args()
 
     if args.refs:
-        args.refs = check_output(['git', 'rev-parse', '--symbolic-full-name'] + args.refs).splitlines()
+        args.refs = check_output(git_cmd + ['rev-parse', '--symbolic-full-name'] + args.refs).splitlines()
     else:
         args.refs = get_all_refs(lambda r, t, tt: t == 'commit' or tt == 'commit')
 
     args.refs = list(filter(lambda r: not r.endswith('/HEAD'), args.refs))
-    args.revisions = check_output(['git', 'rev-parse'] + ['%s^{}' % i for i in args.revisions]).splitlines()
+    args.revisions = check_output(git_cmd + ['rev-parse'] + ['%s^{}' % i for i in args.revisions]).splitlines()
     return args
 
 
@@ -95,7 +97,7 @@ def make_shallow(shallow_file, revisions, refs):
 
 def get_all_refs(ref_filter=None):
     """Return all the existing refs in this repository, optionally filtering the refs."""
-    ref_output = check_output(['git', 'for-each-ref', '--format=%(refname)\t%(objecttype)\t%(*objecttype)'])
+    ref_output = check_output(git_cmd + ['for-each-ref', '--format=%(refname)\t%(objecttype)\t%(*objecttype)'])
     ref_split = [tuple(iter_extend(l.rsplit('\t'), 3)) for l in ref_output.splitlines()]
     if ref_filter:
         ref_split = (e for e in ref_split if ref_filter(*e))
@@ -113,8 +115,8 @@ def filter_refs(refs):
     all_refs = get_all_refs()
     to_remove = set(all_refs) - set(refs)
     if to_remove:
-        check_output(['xargs', '-0', '-n', '1', 'git', 'update-ref', '-d', '--no-deref'],
-                     input=''.join(l + '\0' for l in to_remove))
+        check_output(git_cmd + ['update-ref', '--no-deref', '--stdin', '-z'],
+                     input=''.join('delete ' + l + '\0\0' for l in to_remove))
 
 
 def follow_history_intersections(revisions, refs):
@@ -126,7 +128,7 @@ def follow_history_intersections(revisions, refs):
         if rev in seen:
             continue
 
-        parents = check_output(['git', 'rev-parse', '%s^@' % rev]).splitlines()
+        parents = check_output(git_cmd + ['rev-parse', '%s^@' % rev]).splitlines()
 
         yield rev
         seen.add(rev)
@@ -134,12 +136,12 @@ def follow_history_intersections(revisions, refs):
         if not parents:
             continue
 
-        check_refs = check_output(['git', 'merge-base', '--independent'] + sorted(refs)).splitlines()
+        check_refs = check_output(git_cmd + ['merge-base', '--independent'] + sorted(refs)).splitlines()
         for parent in parents:
             for ref in check_refs:
                 print("Checking %s vs %s" % (parent, ref))
                 try:
-                    merge_base = check_output(['git', 'merge-base', parent, ref]).rstrip()
+                    merge_base = check_output(git_cmd + ['merge-base', parent, ref]).rstrip()
                 except subprocess.CalledProcessError:
                     continue
                 else:
@@ -159,14 +161,14 @@ def iter_except(func, exception, start=None):
 
 def shrink_repo(git_dir):
     """Shrink the newly shallow repository, removing the unreachable objects."""
-    subprocess.check_call(['git', 'reflog', 'expire', '--expire-unreachable=now', '--all'])
-    subprocess.check_call(['git', 'repack', '-ad'])
+    subprocess.check_call(git_cmd + ['reflog', 'expire', '--expire-unreachable=now', '--all'])
+    subprocess.check_call(git_cmd + ['repack', '-ad'])
     try:
         os.unlink(os.path.join(git_dir, 'objects', 'info', 'alternates'))
     except OSError as exc:
         if exc.errno != errno.ENOENT:
             raise
-    subprocess.check_call(['git', 'prune', '--expire', 'now'])
+    subprocess.check_call(git_cmd + ['prune', '--expire', 'now'])
 
 
 if __name__ == '__main__':

bitbake/bin/toaster

@@ -84,7 +84,7 @@ webserverStartAll()
     echo "Starting webserver..."
 
     $MANAGE runserver --noreload "$ADDR_PORT" \
-           </dev/null >>${BUILDDIR}/toaster_web.log 2>&1 \
+           </dev/null >>${TOASTER_LOGS_DIR}/web.log 2>&1 \
            & echo $! >${BUILDDIR}/.toastermain.pid
 
     sleep 1
@@ -181,6 +181,14 @@ WEBSERVER=1
 export TOASTER_BUILDSERVER=1
 ADDR_PORT="localhost:8000"
 TOASTERDIR=`dirname $BUILDDIR`
+# ${BUILDDIR}/toaster_logs/ became the default location for toaster logs
+# This is needed for implemented django-log-viewer: https://pypi.org/project/django-log-viewer/
+# If the directory does not exist, create it.
+TOASTER_LOGS_DIR="${BUILDDIR}/toaster_logs/"
+if [ ! -d $TOASTER_LOGS_DIR ]
+then
+    mkdir $TOASTER_LOGS_DIR
+fi
 unset CMD
 for param in $*; do
     case $param in
@@ -299,7 +307,7 @@ case $CMD in
         export BITBAKE_UI='toasterui'
         if [ $TOASTER_BUILDSERVER -eq 1 ] ; then
             $MANAGE runbuilds \
-               </dev/null >>${BUILDDIR}/toaster_runbuilds.log 2>&1 \
+               </dev/null >>${TOASTER_LOGS_DIR}/toaster_runbuilds.log 2>&1 \
                & echo $! >${BUILDDIR}/.runbuilds.pid
         else
             echo "Toaster build server not started."

bitbake/bin/toaster-eventreplay

@@ -30,79 +30,23 @@ sys.path.insert(0, join(dirname(dirname(abspath(__file__))), 'lib'))
 
 import bb.cooker
 from bb.ui import toasterui
-
-class EventPlayer:
-    """Emulate a connection to a bitbake server."""
-
-    def __init__(self, eventfile, variables):
-        self.eventfile = eventfile
-        self.variables = variables
-        self.eventmask = []
-
-    def waitEvent(self, _timeout):
-        """Read event from the file."""
-        line = self.eventfile.readline().strip()
-        if not line:
-            return
-        try:
-            event_str = json.loads(line)['vars'].encode('utf-8')
-            event = pickle.loads(codecs.decode(event_str, 'base64'))
-            event_name = "%s.%s" % (event.__module__, event.__class__.__name__)
-            if event_name not in self.eventmask:
-                return
-            return event
-        except ValueError as err:
-            print("Failed loading ", line)
-            raise err
-
-    def runCommand(self, command_line):
-        """Emulate running a command on the server."""
-        name = command_line[0]
-
-        if name == "getVariable":
-            var_name = command_line[1]
-            variable = self.variables.get(var_name)
-            if variable:
-                return variable['v'], None
-            return None, "Missing variable %s" % var_name
-
-        elif name == "getAllKeysWithFlags":
-            dump = {}
-            flaglist = command_line[1]
-            for key, val in self.variables.items():
-                try:
-                    if not key.startswith("__"):
-                        dump[key] = {
-                            'v': val['v'],
-                            'history' : val['history'],
-                        }
-                        for flag in flaglist:
-                            dump[key][flag] = val[flag]
-                except Exception as err:
-                    print(err)
-            return (dump, None)
-
-        elif name == 'setEventMask':
-            self.eventmask = command_line[-1]
-            return True, None
-
-        else:
-            raise Exception("Command %s not implemented" % command_line[0])
-
-    def getEventHandle(self):
-        """
-        This method is called by toasterui.
-        The return value is passed to self.runCommand but not used there.
-        """
-        pass
+from bb.ui import eventreplay
 
 def main(argv):
     with open(argv[-1]) as eventfile:
         # load variables from the first line
-        variables = json.loads(eventfile.readline().strip())['allvariables']
-
+        variables = None
+        while line := eventfile.readline().strip():
+            try:
+                variables = json.loads(line)['allvariables']
+                break
+            except (KeyError, json.JSONDecodeError):
+                continue
+        if not variables:
+            sys.exit("Cannot find allvariables entry in event log file %s" % argv[-1])
+        eventfile.seek(0)
         params = namedtuple('ConfigParams', ['observe_only'])(True)
-        player = EventPlayer(eventfile, variables)
+        player = eventreplay.EventPlayer(eventfile, variables)
 
         return toasterui.main(player, player, params)
 

bitbake/contrib/b4-wrapper-bitbake.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+# This script is to be called by b4:
+# - through b4.send-auto-cc-cmd with "send-auto-cc-cmd" as first argument,
+#
+# When send-auto-cc-cmd is passed:
+#
+#  This returns the list of Cc recipients for a patch.
+#
+# This script takes as stdin a patch.
+
+import subprocess
+import sys
+
+cmd = sys.argv[1]
+if cmd != "send-auto-cc-cmd":
+    sys.exit(-1)
+
+patch = sys.stdin.read()
+
+if subprocess.call(["which", "lsdiff"], stdout=subprocess.DEVNULL) != 0:
+    print("lsdiff missing from host, please install patchutils")
+    sys.exit(-1)
+
+files = subprocess.check_output(["lsdiff", "--strip-match=1", "--strip=1", "--include=doc/*"],
+                                input=patch, text=True)
+if len(files):
+    print("docs@lists.yoctoproject.org")
+else:
+# Handle patches made with --no-prefix
+    files = subprocess.check_output(["lsdiff", "--include=doc/*"],
+                                    input=patch, text=True)
+    if len(files):
+        print("docs@lists.yoctoproject.org")
+
+sys.exit(0)

bitbake/contrib/hashserv/Dockerfile

@@ -11,7 +11,7 @@
 
 FROM alpine:3.13.1
 
-RUN apk add --no-cache python3
+RUN apk add --no-cache python3 libgcc
 
 COPY bin/bitbake-hashserv /opt/bbhashserv/bin/
 COPY lib/hashserv /opt/bbhashserv/lib/hashserv/

bitbake/contrib/vim/ftdetect/bitbake.vim

@@ -11,10 +11,18 @@ if &compatible || version < 600 || exists("b:loaded_bitbake_plugin")
 endif
 
 " .bb, .bbappend and .bbclass
-au BufNewFile,BufRead *.{bb,bbappend,bbclass}  set filetype=bitbake
+au BufNewFile,BufRead *.{bb,bbappend,bbclass}  setfiletype bitbake
 
-" .inc
-au BufNewFile,BufRead *.inc		set filetype=bitbake
+" .inc -- meanwhile included upstream
+if !has("patch-9.0.0055")
+    au BufNewFile,BufRead *.inc                call s:BBIncDetect()
+    def s:BBIncDetect()
+        l:lines = getline(1) .. getline(2) .. getline(3)
+        if l:lines =~# '\<\%(require\|inherit\)\>' || lines =~# '[A-Z][A-Za-z0-9_:${}]*\s\+\%(??\|[?:+]\)\?= '
+            set filetype bitbake
+        endif
+    enddef
+endif
 
 " .conf
 au BufNewFile,BufRead *.conf

bitbake/contrib/vim/indent/bitbake.vim

@@ -40,7 +40,7 @@ set cpo&vim
 
 let s:maxoff = 50	" maximum number of lines to look backwards for ()
 
-function GetPythonIndent(lnum)
+function! GetBBPythonIndent(lnum)
 
   " If this line is explicitly joined: If the previous line was also joined,
   " line it up with that one, otherwise add two 'shiftwidth'
@@ -257,7 +257,7 @@ let b:did_indent = 1
 setlocal indentkeys+=0\"
 
 
-function BitbakeIndent(lnum)
+function! BitbakeIndent(lnum)
     if !has('syntax_items')
         return -1
     endif
@@ -315,7 +315,7 @@ function BitbakeIndent(lnum)
     endif
 
     if index(["bbPyDefRegion", "bbPyFuncRegion"], name) != -1
-        let ret = GetPythonIndent(a:lnum)
+        let ret = GetBBPythonIndent(a:lnum)
         " Should normally always be indented by at least one shiftwidth; but allow
         " return of -1 (defer to autoindent) or -2 (force indent to 0)
         if ret == 0

bitbake/contrib/vim/syntax/bitbake.vim

@@ -63,13 +63,14 @@ syn region bbVarFlagFlag        matchgroup=bbArrayBrackets start="\[" end="\]\s*
 
 " Includes and requires
 syn keyword bbInclude           inherit include require contained 
-syn match bbIncludeRest         ".*$" contained contains=bbString,bbVarDeref
+syn match bbIncludeRest         ".*$" contained contains=bbString,bbVarDeref,bbVarPyValue
 syn match bbIncludeLine         "^\(inherit\|include\|require\)\s\+" contains=bbInclude nextgroup=bbIncludeRest
 
 " Add taks and similar
 syn keyword bbStatement         addtask deltask addhandler after before EXPORT_FUNCTIONS contained
-syn match bbStatementRest       ".*$" skipwhite contained contains=bbStatement
-syn match bbStatementLine       "^\(addtask\|deltask\|addhandler\|after\|before\|EXPORT_FUNCTIONS\)\s\+" contains=bbStatement nextgroup=bbStatementRest
+syn match bbStatementRest       /[^\\]*$/ skipwhite contained contains=bbStatement,bbVarDeref,bbVarPyValue
+syn region bbStatementRestCont  start=/.*\\$/ end=/^[^\\]*$/ contained contains=bbStatement,bbVarDeref,bbVarPyValue,bbContinue keepend
+syn match bbStatementLine       "^\(addtask\|deltask\|addhandler\|after\|before\|EXPORT_FUNCTIONS\)\s\+" contains=bbStatement nextgroup=bbStatementRest,bbStatementRestCont
 
 " OE Important Functions
 syn keyword bbOEFunctions       do_fetch do_unpack do_patch do_configure do_compile do_stage do_install do_package contained
@@ -122,6 +123,7 @@ hi def link bbPyFlag            Type
 hi def link bbPyDef             Statement
 hi def link bbStatement         Statement
 hi def link bbStatementRest     Identifier
+hi def link bbStatementRestCont Identifier
 hi def link bbOEFunctions       Special
 hi def link bbVarPyValue        PreProc
 hi def link bbOverrideOperator  Operator

bitbake/doc/README

@@ -47,8 +47,8 @@ To install all required packages run:
 
 To build the documentation locally, run:
 
- $ cd documentation
- $ make -f Makefile.sphinx html
+ $ cd doc
+ $ make html
 
 The resulting HTML index page will be _build/html/index.html, and you
 can browse your own copy of the locally generated documentation with

bitbake/doc/bitbake-user-manual/bitbake-user-manual-execution.rst

@@ -586,10 +586,11 @@ or possibly those defined in the metadata/signature handler itself. The
 simplest parameter to pass is "none", which causes a set of signature
 information to be written out into ``STAMPS_DIR`` corresponding to the
 targets specified. The other currently available parameter is
-"printdiff", which causes BitBake to try to establish the closest
+"printdiff", which causes BitBake to try to establish the most recent
 signature match it can (e.g. in the sstate cache) and then run
-``bitbake-diffsigs`` over the matches to determine the stamps and delta
-where these two stamp trees diverge.
+compare the matched signatures to determine the stamps and delta
+where these two stamp trees diverge. This can be used to determine why
+tasks need to be re-run in situations where that is not expected.
 
 .. note::
 

bitbake/doc/bitbake-user-manual/bitbake-user-manual-fetching.rst

@@ -476,6 +476,14 @@ Here are some example URLs::
    easy to share metadata without removing passwords. SSH keys, ``~/.netrc``
    and ``~/.ssh/config`` files can be used as alternatives.
 
+Using tags with the git fetcher may cause surprising behaviour. Bitbake needs to
+resolve the tag to a specific revision and to do that, it has to connect to and use
+the upstream repository. This is because the revision the tags point at can change and
+we've seen cases of this happening in well known public repositories. This can mean
+many more network connections than expected and recipes may be reparsed at every build.
+Source mirrors will also be bypassed as the upstream repository is the only source
+of truth to resolve the revision accurately. For these reasons, whilst the fetcher
+can support tags, we recommend being specific about revisions in recipes.
 
 .. _gitsm-fetcher:
 
@@ -688,6 +696,41 @@ Here is an example URL::
 
 It can also be used when setting mirrors definitions using the :term:`PREMIRRORS` variable.
 
+.. _gcp-fetcher:
+
+GCP Fetcher (``gs://``)
+--------------------------
+
+This submodule fetches data from a
+`Google Cloud Storage Bucket <https://cloud.google.com/storage/docs/buckets>`__.
+It uses the `Google Cloud Storage Python Client <https://cloud.google.com/python/docs/reference/storage/latest>`__
+to check the status of objects in the bucket and download them.
+The use of the Python client makes it substantially faster than using command
+line tools such as gsutil.
+
+The fetcher requires the Google Cloud Storage Python Client to be installed, along
+with the gsutil tool.
+
+The fetcher requires that the machine has valid credentials for accessing the
+chosen bucket. Instructions for authentication can be found in the
+`Google Cloud documentation <https://cloud.google.com/docs/authentication/provide-credentials-adc#local-dev>`__.
+
+If it used from the OpenEmbedded build system, the fetcher can be used for
+fetching sstate artifacts from a GCS bucket by specifying the
+``SSTATE_MIRRORS`` variable as shown below::
+
+   SSTATE_MIRRORS ?= "\
+       file://.* gs://<bucket name>/PATH \
+   "
+
+The fetcher can also be used in recipes::
+
+   SRC_URI = "gs://<bucket name>/<foo_container>/<bar_file>"
+
+However, the checksum of the file should be also be provided::
+
+   SRC_URI[sha256sum] = "<sha256 string>"
+
 .. _crate-fetcher:
 
 Crate Fetcher (``crate://``)
@@ -791,6 +834,8 @@ Fetch submodules also exist for the following:
 
 -  OSC (``osc://``)
 
+-  S3 (``s3://``)
+
 -  Secure FTP (``sftp://``)
 
 -  Secure Shell (``ssh://``)

bitbake/doc/bitbake-user-manual/bitbake-user-manual-hello.rst

@@ -209,12 +209,12 @@ Following is the complete "Hello World" example.
 
     .. note::
 
-       Without a value for PN , the variables STAMP , T , and B , prevent more
-       than one recipe from working. You can fix this by either setting PN to
+       Without a value for :term:`PN`, the variables :term:`STAMP`, :term:`T`, and :term:`B`, prevent more
+       than one recipe from working. You can fix this by either setting :term:`PN` to
        have a value similar to what OpenEmbedded and BitBake use in the default
-       bitbake.conf file (see previous example). Or, by manually updating each
-       recipe to set PN . You will also need to include PN as part of the STAMP
-       , T , and B variable definitions in the local.conf file.
+       ``bitbake.conf`` file (see previous example). Or, by manually updating each
+       recipe to set :term:`PN`. You will also need to include :term:`PN` as part of the :term:`STAMP`,
+       :term:`T`, and :term:`B` variable definitions in the ``local.conf`` file.
 
     The ``TMPDIR`` variable establishes a directory that BitBake uses
     for build output and intermediate files other than the cached
@@ -319,9 +319,9 @@ Following is the complete "Hello World" example.
 
     .. note::
 
-       We are setting both LAYERSERIES_CORENAMES and LAYERSERIES_COMPAT in this particular case, because we
+       We are setting both ``LAYERSERIES_CORENAMES`` and :term:`LAYERSERIES_COMPAT` in this particular case, because we
        are using bitbake without OpenEmbedded.
-       You should usually just use LAYERSERIES_COMPAT to specify the OE-Core versions for which your layer
+       You should usually just use :term:`LAYERSERIES_COMPAT` to specify the OE-Core versions for which your layer
        is compatible, and add the meta-openembedded layer to your project.
 
     You need to create the recipe file next. Inside your layer at the

bitbake/doc/bitbake-user-manual/bitbake-user-manual-intro.rst

@@ -349,40 +349,84 @@ Usage and syntax
 Following is the usage and syntax for BitBake::
 
    $ bitbake -h
-   Usage: bitbake [options] [recipename/target recipe:do_task ...]
+   usage: bitbake [-s] [-e] [-g] [-u UI] [--version] [-h] [-f] [-c CMD]
+                  [-C INVALIDATE_STAMP] [--runall RUNALL] [--runonly RUNONLY]
+                  [--no-setscene] [--skip-setscene] [--setscene-only] [-n] [-p]
+                  [-k] [-P] [-S SIGNATURE_HANDLER] [--revisions-changed]
+                  [-b BUILDFILE] [-D] [-l DEBUG_DOMAINS] [-v] [-q]
+                  [-w WRITEEVENTLOG] [-B BIND] [-T SERVER_TIMEOUT]
+                  [--remote-server REMOTE_SERVER] [-m] [--token XMLRPCTOKEN]
+                  [--observe-only] [--status-only] [--server-only] [-r PREFILE]
+                  [-R POSTFILE] [-I EXTRA_ASSUME_PROVIDED]
+                  [recipename/target ...]
 
-       Executes the specified task (default is 'build') for a given set of target recipes (.bb files).
-       It is assumed there is a conf/bblayers.conf available in cwd or in BBPATH which
-       will provide the layer, BBFILES and other configuration information.
+   It is assumed there is a conf/bblayers.conf available in cwd or in BBPATH
+   which will provide the layer, BBFILES and other configuration information.
 
-   Options:
-     --version             show program's version number and exit
-     -h, --help            show this help message and exit
-     -b BUILDFILE, --buildfile=BUILDFILE
-                           Execute tasks from a specific .bb recipe directly.
-                           WARNING: Does not handle any dependencies from other
-                           recipes.
+   General options:
+     recipename/target     Execute the specified task (default is 'build') for
+                           these target recipes (.bb files).
+     -s, --show-versions   Show current and preferred versions of all recipes.
+     -e, --environment     Show the global or per-recipe environment complete
+                           with information about where variables were
+                           set/changed.
+     -g, --graphviz        Save dependency tree information for the specified
+                           targets in the dot syntax.
+     -u UI, --ui UI        The user interface to use (knotty, ncurses, taskexp,
+                           taskexp_ncurses or teamcity - default knotty).
+     --version             Show programs version and exit.
+     -h, --help            Show this help message and exit.
+
+   Task control options:
+     -f, --force           Force the specified targets/task to run (invalidating
+                           any existing stamp file).
+     -c CMD, --cmd CMD     Specify the task to execute. The exact options
+                           available depend on the metadata. Some examples might
+                           be 'compile' or 'populate_sysroot' or 'listtasks' may
+                           give a list of the tasks available.
+     -C INVALIDATE_STAMP, --clear-stamp INVALIDATE_STAMP
+                           Invalidate the stamp for the specified task such as
+                           'compile' and then run the default task for the
+                           specified target(s).
+     --runall RUNALL       Run the specified task for any recipe in the taskgraph
+                           of the specified target (even if it wouldn't otherwise
+                           have run).
+     --runonly RUNONLY     Run only the specified task within the taskgraph of
+                           the specified targets (and any task dependencies those
+                           tasks may have).
+     --no-setscene         Do not run any setscene tasks. sstate will be ignored
+                           and everything needed, built.
+     --skip-setscene       Skip setscene tasks if they would be executed. Tasks
+                           previously restored from sstate will be kept, unlike
+                           --no-setscene.
+     --setscene-only       Only run setscene tasks, don't run any real tasks.
+
+   Execution control options:
+     -n, --dry-run         Don't execute, just go through the motions.
+     -p, --parse-only      Quit after parsing the BB recipes.
      -k, --continue        Continue as much as possible after an error. While the
                            target that failed and anything depending on it cannot
                            be built, as much as possible will be built before
                            stopping.
-     -f, --force           Force the specified targets/task to run (invalidating
-                           any existing stamp file).
-     -c CMD, --cmd=CMD     Specify the task to execute. The exact options
-                           available depend on the metadata. Some examples might
-                           be 'compile' or 'populate_sysroot' or 'listtasks' may
-                           give a list of the tasks available.
-     -C INVALIDATE_STAMP, --clear-stamp=INVALIDATE_STAMP
-                           Invalidate the stamp for the specified task such as
-                           'compile' and then run the default task for the
-                           specified target(s).
-     -r PREFILE, --read=PREFILE
-                           Read the specified file before bitbake.conf.
-     -R POSTFILE, --postread=POSTFILE
-                           Read the specified file after bitbake.conf.
-     -v, --verbose         Enable tracing of shell tasks (with 'set -x'). Also
-                           print bb.note(...) messages to stdout (in addition to
-                           writing them to ${T}/log.do_<task>).
+     -P, --profile         Profile the command and save reports.
+     -S SIGNATURE_HANDLER, --dump-signatures SIGNATURE_HANDLER
+                           Dump out the signature construction information, with
+                           no task execution. The SIGNATURE_HANDLER parameter is
+                           passed to the handler. Two common values are none and
+                           printdiff but the handler may define more/less. none
+                           means only dump the signature, printdiff means
+                           recursively compare the dumped signature with the most
+                           recent one in a local build or sstate cache (can be
+                           used to find out why tasks re-run when that is not
+                           expected)
+     --revisions-changed   Set the exit code depending on whether upstream
+                           floating revisions have changed or not.
+     -b BUILDFILE, --buildfile BUILDFILE
+                           Execute tasks from a specific .bb recipe directly.
+                           WARNING: Does not handle any dependencies from other
+                           recipes.
+
+   Logging/output control options:
      -D, --debug           Increase the debug level. You can specify this more
                            than once. -D sets the debug level to 1, where only
                            bb.debug(1, ...) messages are printed to stdout; -DD
@@ -392,65 +436,47 @@ Following is the usage and syntax for BitBake::
                            -D only affects output to stdout. All debug messages
                            are written to ${T}/log.do_taskname, regardless of the
                            debug level.
+     -l DEBUG_DOMAINS, --log-domains DEBUG_DOMAINS
+                           Show debug logging for the specified logging domains.
+     -v, --verbose         Enable tracing of shell tasks (with 'set -x'). Also
+                           print bb.note(...) messages to stdout (in addition to
+                           writing them to ${T}/log.do_<task>).
      -q, --quiet           Output less log message data to the terminal. You can
                            specify this more than once.
-     -n, --dry-run         Don't execute, just go through the motions.
-     -S SIGNATURE_HANDLER, --dump-signatures=SIGNATURE_HANDLER
-                           Dump out the signature construction information, with
-                           no task execution. The SIGNATURE_HANDLER parameter is
-                           passed to the handler. Two common values are none and
-                           printdiff but the handler may define more/less. none
-                           means only dump the signature, printdiff means compare
-                           the dumped signature with the cached one.
-     -p, --parse-only      Quit after parsing the BB recipes.
-     -s, --show-versions   Show current and preferred versions of all recipes.
-     -e, --environment     Show the global or per-recipe environment complete
-                           with information about where variables were
-                           set/changed.
-     -g, --graphviz        Save dependency tree information for the specified
-                           targets in the dot syntax.
-     -I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED
-                           Assume these dependencies don't exist and are already
-                           provided (equivalent to ASSUME_PROVIDED). Useful to
-                           make dependency graphs more appealing
-     -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS
-                           Show debug logging for the specified logging domains
-     -P, --profile         Profile the command and save reports.
-     -u UI, --ui=UI        The user interface to use (knotty, ncurses, taskexp or
-                           teamcity - default knotty).
-     --token=XMLRPCTOKEN   Specify the connection token to be used when
-                           connecting to a remote server.
-     --revisions-changed   Set the exit code depending on whether upstream
-                           floating revisions have changed or not.
-     --server-only         Run bitbake without a UI, only starting a server
-                           (cooker) process.
-     -B BIND, --bind=BIND  The name/address for the bitbake xmlrpc server to bind
-                           to.
-     -T SERVER_TIMEOUT, --idle-timeout=SERVER_TIMEOUT
-                           Set timeout to unload bitbake server due to
-                           inactivity, set to -1 means no unload, default:
-                           Environment variable BB_SERVER_TIMEOUT.
-     --no-setscene         Do not run any setscene tasks. sstate will be ignored
-                           and everything needed, built.
-     --skip-setscene       Skip setscene tasks if they would be executed. Tasks
-                           previously restored from sstate will be kept, unlike
-                           --no-setscene
-     --setscene-only       Only run setscene tasks, don't run any real tasks.
-     --remote-server=REMOTE_SERVER
-                           Connect to the specified server.
-     -m, --kill-server     Terminate any running bitbake server.
-     --observe-only        Connect to a server as an observing-only client.
-     --status-only         Check the status of the remote bitbake server.
-     -w WRITEEVENTLOG, --write-log=WRITEEVENTLOG
+     -w WRITEEVENTLOG, --write-log WRITEEVENTLOG
                            Writes the event log of the build to a bitbake event
                            json file. Use '' (empty string) to assign the name
                            automatically.
-     --runall=RUNALL       Run the specified task for any recipe in the taskgraph
-                           of the specified target (even if it wouldn't otherwise
-                           have run).
-     --runonly=RUNONLY     Run only the specified task within the taskgraph of
-                           the specified targets (and any task dependencies those
-                           tasks may have).
+
+   Server options:
+     -B BIND, --bind BIND  The name/address for the bitbake xmlrpc server to bind
+                           to.
+     -T SERVER_TIMEOUT, --idle-timeout SERVER_TIMEOUT
+                           Set timeout to unload bitbake server due to
+                           inactivity, set to -1 means no unload, default:
+                           Environment variable BB_SERVER_TIMEOUT.
+     --remote-server REMOTE_SERVER
+                           Connect to the specified server.
+     -m, --kill-server     Terminate any running bitbake server.
+     --token XMLRPCTOKEN   Specify the connection token to be used when
+                           connecting to a remote server.
+     --observe-only        Connect to a server as an observing-only client.
+     --status-only         Check the status of the remote bitbake server.
+     --server-only         Run bitbake without a UI, only starting a server
+                           (cooker) process.
+
+   Configuration options:
+     -r PREFILE, --read PREFILE
+                           Read the specified file before bitbake.conf.
+     -R POSTFILE, --postread POSTFILE
+                           Read the specified file after bitbake.conf.
+     -I EXTRA_ASSUME_PROVIDED, --ignore-deps EXTRA_ASSUME_PROVIDED
+                           Assume these dependencies don't exist and are already
+                           provided (equivalent to ASSUME_PROVIDED). Useful to
+                           make dependency graphs more appealing.
+
+..
+    Bitbake help output generated with "stty columns 80; bin/bitbake -h"
 
 .. _bitbake-examples:
 

bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst

@@ -754,7 +754,9 @@ share the task.
 This section presents the mechanisms BitBake provides to allow you to
 share functionality between recipes. Specifically, the mechanisms
 include ``include``, ``inherit``, :term:`INHERIT`, and ``require``
-directives.
+directives. There is also a higher-level abstraction called
+``configuration fragments`` that is enabled with ``addfragments``
+directive.
 
 Locating Include and Class Files
 --------------------------------
@@ -771,6 +773,8 @@ In order for include and class files to be found by BitBake, they need
 to be located in a "classes" subdirectory that can be found in
 :term:`BBPATH`.
 
+.. _ref-bitbake-user-manual-metadata-inherit:
+
 ``inherit`` Directive
 ---------------------
 
@@ -809,19 +813,43 @@ An advantage with the inherit directive as compared to both the
 :ref:`include <bitbake-user-manual/bitbake-user-manual-metadata:\`\`include\`\` directive>` and :ref:`require <bitbake-user-manual/bitbake-user-manual-metadata:\`\`require\`\` directive>`
 directives is that you can inherit class files conditionally. You can
 accomplish this by using a variable expression after the ``inherit``
-statement. Here is an example::
+statement.
 
-   inherit ${VARNAME}
+For inheriting classes conditionally, using the :ref:`inherit_defer
+<ref-bitbake-user-manual-metadata-inherit-defer>` directive is advised as
+:ref:`inherit_defer <ref-bitbake-user-manual-metadata-inherit-defer>` is
+evaluated at the end of parsing.
+
+.. _ref-bitbake-user-manual-metadata-inherit-defer:
+
+``inherit_defer`` Directive
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The :ref:`inherit_defer <ref-bitbake-user-manual-metadata-inherit-defer>`
+directive works like the :ref:`inherit
+<ref-bitbake-user-manual-metadata-inherit>` directive, except that it is only
+evaluated at the end of parsing. Its usage is recommended when a conditional
+expression is used.
+
+This allows conditional expressions to be evaluated "late", meaning changes to
+the variable after the line is parsed will take effect. With the :ref:`inherit
+<ref-bitbake-user-manual-metadata-inherit>` directive this is not the case.
+
+Here is an example::
+
+   inherit_defer ${VARNAME}
 
 If ``VARNAME`` is
-going to be set, it needs to be set before the ``inherit`` statement is
+going to be set, it needs to be set before the ``inherit_defer`` statement is
 parsed. One way to achieve a conditional inherit in this case is to use
 overrides::
 
    VARIABLE = ""
    VARIABLE:someoverride = "myclass"
 
-Another method is by using anonymous Python. Here is an example::
+Another method is by using :ref:`anonymous Python
+<bitbake-user-manual/bitbake-user-manual-metadata:Anonymous Python Functions>`.
+Here is an example::
 
    python () {
        if condition == value:
@@ -830,11 +858,14 @@ Another method is by using anonymous Python. Here is an example::
            d.setVar('VARIABLE', '')
    }
 
-Alternatively, you could use an in-line Python expression in the
+Alternatively, you could use an inline Python expression in the
 following form::
 
-   inherit ${@'classname' if condition else ''}
-   inherit ${@functionname(params)}
+   inherit_defer ${@'classname' if condition else ''}
+
+Or::
+
+   inherit_defer ${@bb.utils.contains('VARIABLE', 'something', 'classname', '', d)}
 
 In all cases, if the expression evaluates to an
 empty string, the statement does not trigger a syntax error because it
@@ -933,6 +964,50 @@ the ``autotools`` and ``pkgconfig`` classes::
 
    INHERIT += "autotools pkgconfig"
 
+``addfragments`` Directive
+--------------------------
+
+This directive allows fine-tuning local configurations with configuration
+snippets contained in layers in a structured, controlled way. Typically it would
+go into ``bitbake.conf``, for example::
+
+   addfragments conf/fragments OE_FRAGMENTS OE_FRAGMENTS_METADATA_VARS
+
+``addfragments`` takes three parameters:
+
+-  path prefix for fragment files inside the layer file tree that bitbake
+   uses to construct full paths to the fragment files
+
+-  name of variable that holds the list of enabled fragments in an
+   active build
+
+-  name of variable that contains a list of variable names containing
+   fragment-specific metadata (such as descriptions)
+
+This allows listing enabled configuration fragments in ``OE_FRAGMENTS``
+variable like this::
+
+   OE_FRAGMENTS = "core/domain/somefragment core/someotherfragment anotherlayer/anotherdomain/anotherfragment"
+
+Fragment names listed in this variable must be prefixed by the layer name
+where a fragment file is located, defined by :term:`BBFILE_COLLECTIONS` in ``layer.conf``.
+
+The implementation then expands this list into
+:ref:`require <bitbake-user-manual/bitbake-user-manual-metadata:\`\`require\`\` directive>`
+directives with full paths to respective layers::
+
+   require /path/to/core-layer/conf/fragments/domain/somefragment.conf
+   require /path/to/core-layer/conf/fragments/someotherfragment.conf
+   require /path/to/another-layer/conf/fragments/anotherdomain/anotherfragment.conf
+
+The variable containing a list of fragment metadata variables could look like this::
+
+   OE_FRAGMENTS_METADATA_VARS = "BB_CONF_FRAGMENT_SUMMARY BB_CONF_FRAGMENT_DESCRIPTION"
+
+The implementation will add a flag containing the fragment name to each of those variables
+when parsing fragments, so that the variables are namespaced by fragment name, and do not override
+each other when several fragments are enabled.
+
 Functions
 =========
 
@@ -1519,6 +1594,12 @@ functionality of the task:
    released. You can use this variable flag to accomplish mutual
    exclusion.
 
+-  ``[network]``: When set to "1", allows a task to access the network. By
+   default, only the ``do_fetch`` task is granted network access. Recipes
+   shouldn't access the network outside of ``do_fetch`` as it usually
+   undermines fetcher source mirroring, image and licence manifests, software
+   auditing and supply chain security.
+
 -  ``[noexec]``: When set to "1", marks the task as being empty, with
    no execution required. You can use the ``[noexec]`` flag to set up
    tasks as dependency placeholders, or to disable tasks defined

bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables-context.rst

@@ -0,0 +1,91 @@
+.. SPDX-License-Identifier: CC-BY-2.5
+
+================
+Variable Context
+================
+
+|
+
+Variables might only have an impact or can be used in certain contexts. Some
+should only be used in global files like ``.conf``, while others are intended only
+for local files like ``.bb``. This chapter aims to describe some important variable
+contexts.
+
+.. _ref-varcontext-configuration:
+
+BitBake's own configuration
+===========================
+
+Variables starting with ``BB_`` usually configure the behaviour of BitBake itself.
+For example, one could configure:
+
+- System resources, like disk space to be used (:term:`BB_DISKMON_DIRS`),
+  or the number of tasks to be run in parallel by BitBake (:term:`BB_NUMBER_THREADS`).
+
+- How the fetchers shall behave, e.g., :term:`BB_FETCH_PREMIRRORONLY` is used
+  by BitBake to determine if BitBake's fetcher shall search only
+  :term:`PREMIRRORS` for files.
+
+Those variables are usually configured globally.
+
+BitBake configuration
+=====================
+
+There are variables:
+
+- Like :term:`B` or :term:`T`, that are used to specify directories used by
+  BitBake during the build of a particular recipe. Those variables are
+  specified in ``bitbake.conf``. Some, like :term:`B`, are quite often
+  overwritten in recipes.
+
+- Starting with ``FAKEROOT``, to configure how the ``fakeroot`` command is
+  handled. Those are usually set by ``bitbake.conf`` and might get adapted in a
+  ``bbclass``.
+
+- Detailing where BitBake will store and fetch information from, for
+  data reuse between build runs like :term:`CACHE`, :term:`DL_DIR` or
+  :term:`PERSISTENT_DIR`. Those are usually global.
+
+
+Layers and files
+================
+
+Variables starting with ``LAYER`` configure how BitBake handles layers.
+Additionally, variables starting with ``BB`` configure how layers and files are
+handled. For example:
+
+- :term:`LAYERDEPENDS` is used to configure on which layers a given layer
+  depends.
+
+- The configured layers are contained in :term:`BBLAYERS` and files in
+  :term:`BBFILES`.
+
+Those variables are often used in the files ``layer.conf`` and ``bblayers.conf``.
+
+Recipes and packages
+====================
+
+Variables handling recipes and packages can be split into:
+
+- :term:`PN`, :term:`PV` or :term:`PF` for example, contain information about
+  the name or revision of a recipe or package. Usually, the default set in
+  ``bitbake.conf`` is used, but those are from time to time overwritten in
+  recipes.
+
+- :term:`SUMMARY`, :term:`DESCRIPTION`, :term:`LICENSE` or :term:`HOMEPAGE`
+  contain the expected information and should be set specifically for every
+  recipe.
+
+- In recipes, variables are also used to control build and runtime
+  dependencies between recipes/packages with other recipes/packages. The
+  most common should be: :term:`PROVIDES`, :term:`RPROVIDES`, :term:`DEPENDS`,
+  and :term:`RDEPENDS`.
+
+- There are further variables starting with ``SRC`` that specify the sources in
+  a recipe like :term:`SRC_URI` or :term:`SRCDATE`. Those are also usually set
+  in recipes.
+
+- Which version or provider of a recipe should be given preference when
+  multiple recipes would provide the same item, is controlled by variables
+  starting with ``PREFERRED_``. Those are normally set in the configuration
+  files of a ``MACHINE`` or ``DISTRO``.

bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst

@@ -127,17 +127,10 @@ overview of their function and contents.
       Contains the name of the currently running task. The name does not
       include the ``do_`` prefix.
 
-   :term:`BB_DANGLINGAPPENDS_WARNONLY`
-      Defines how BitBake handles situations where an append file
-      (``.bbappend``) has no corresponding recipe file (``.bb``). This
-      condition often occurs when layers get out of sync (e.g. ``oe-core``
-      bumps a recipe version and the old recipe no longer exists and the
-      other layer has not been updated to the new version of the recipe
-      yet).
-
-      The default fatal behavior is safest because it is the sane reaction
-      given something is out of sync. It is important to realize when your
-      changes are no longer being applied.
+   :term:`BB_CURRENT_MC`
+      Contains the name of the current multiconfig a task is being run under.
+      The name is taken from the multiconfig configuration file (a file
+      ``mc1.conf`` would make this variable equal to ``mc1``).
 
    :term:`BB_DEFAULT_TASK`
       The default task to use when none is specified (e.g. with the ``-c``
@@ -327,11 +320,26 @@ overview of their function and contents.
       mirror tarball. If the shallow mirror tarball cannot be fetched, it will
       try to fetch the full mirror tarball and use that.
 
-      When a mirror tarball is not available, a full git clone will be performed
-      regardless of whether this variable is set or not. Support for shallow
-      clones is not currently implemented as git does not directly support
-      shallow cloning a particular git commit hash (it only supports cloning
-      from a tag or branch reference).
+      This setting causes an initial shallow clone instead of an initial full bare clone.
+      The amount of data transferred during the initial clone will be significantly reduced.
+
+      However, every time the source revision (referenced in :term:`SRCREV`)
+      changes, regardless of whether the cache within the download directory
+      (defined by :term:`DL_DIR`) has been cleaned up or not,
+      the data transfer may be significantly higher because entirely
+      new shallow clones are required for each source revision change.
+
+      Over time, numerous shallow clones may cumulatively transfer
+      the same amount of data as an initial full bare clone.
+      This is especially the case with very large repositories.
+
+      Existing initial full bare clones, created without this setting,
+      will still be utilized.
+
+      If the Git error "Server does not allow request for unadvertised object"
+      occurs, an initial full bare clone is fetched automatically.
+      This may happen if the Git server does not allow the request
+      or if the Git client has issues with this functionality.
 
       See also :term:`BB_GIT_SHALLOW_DEPTH` and
       :term:`BB_GENERATE_SHALLOW_TARBALLS`.
@@ -424,7 +432,7 @@ overview of their function and contents.
 
       Example usage::
 
-         BB_HASHSERVE_UPSTREAM = "hashserv.yocto.io:8687"
+         BB_HASHSERVE_UPSTREAM = "hashserv.yoctoproject.org:8686"
 
    :term:`BB_INVALIDCONF`
       Used in combination with the ``ConfigParsed`` event to trigger
@@ -432,6 +440,15 @@ overview of their function and contents.
       ``ConfigParsed`` event can set the variable to trigger the re-parse.
       You must be careful to avoid recursive loops with this functionality.
 
+   :term:`BB_LOADFACTOR_MAX`
+      Setting this to a value will cause BitBake to check the system load
+      average before executing new tasks. If the load average is above the
+      the number of CPUs multipled by this factor, no new task will be started
+      unless there is no task executing. A value of "1.5" has been found to
+      work reasonably. This is helpful for systems which don't have pressure
+      regulation enabled, which is more granular. Pressure values take
+      precedence over loadfactor.
+
    :term:`BB_LOGCONFIG`
       Specifies the name of a config file that contains the user logging
       configuration. See
@@ -563,7 +580,7 @@ overview of their function and contents.
       :term:`BB_RUNFMT` variable is undefined and the run filenames get
       created using the following form::
 
-         run.{task}.{pid}
+         run.{func}.{pid}
 
       If you want to force run files to take a specific name, you can set this
       variable in a configuration file.
@@ -690,6 +707,12 @@ overview of their function and contents.
       Within an executing task, this variable holds the hash of the task as
       returned by the currently enabled signature generator.
 
+   :term:`BB_USE_HOME_NPMRC`
+      Controls whether or not BitBake uses the user's .npmrc file within their
+      home directory within the npm fetcher. This can be used for authentication
+      of private NPM registries, among other uses. This is turned off by default
+      and requires the user to explicitly set it to "1" to enable.
+
    :term:`BB_VERBOSE_LOGS`
       Controls how verbose BitBake is during builds. If set, shell scripts
       echo commands and shell script output appears on standard out
@@ -757,6 +780,10 @@ overview of their function and contents.
    :term:`BBFILE_PRIORITY`
       Assigns the priority for recipe files in each layer.
 
+      This variable is used in the ``conf/layer.conf`` file and must be
+      suffixed with a `_` followed by the name of the specific layer (e.g.
+      ``BBFILE_PRIORITY_emenlow``). Colon as separator is not supported.
+
       This variable is useful in situations where the same recipe appears
       in more than one layer. Setting this variable allows you to
       prioritize a layer against other layers that contain the same recipe
@@ -771,7 +798,7 @@ overview of their function and contents.
       higher precedence. For example, the value 6 has a higher precedence
       than the value 5. If not specified, the :term:`BBFILE_PRIORITY` variable
       is set based on layer dependencies (see the :term:`LAYERDEPENDS` variable
-      for more information. The default priority, if unspecified for a
+      for more information). The default priority, if unspecified for a
       layer with no dependencies, is the lowest defined priority + 1 (or 1
       if no priorities are defined).
 
@@ -920,9 +947,9 @@ overview of their function and contents.
       section.
 
    :term:`BBPATH`
-      Used by BitBake to locate class (``.bbclass``) and configuration
-      (``.conf``) files. This variable is analogous to the ``PATH``
-      variable.
+      A colon-separated list used by BitBake to locate class (``.bbclass``)
+      and configuration (``.conf``) files. This variable is analogous to the
+      ``PATH`` variable.
 
       If you run BitBake from a directory outside of the build directory,
       you must be sure to set :term:`BBPATH` to point to the build directory.
@@ -1072,6 +1099,11 @@ overview of their function and contents.
       environment variable. The value is a colon-separated list of
       directories that are searched left-to-right in order.
 
+   :term:`FILE_LAYERNAME`
+      During parsing and task execution, this is set to the name of the
+      layer containing the recipe file. Code can use this to identify which
+      layer a recipe is from.
+
    :term:`GITDIR`
       The directory in which a local copy of a Git repository is stored
       when it is cloned.
@@ -1165,8 +1197,8 @@ overview of their function and contents.
       order.
 
    :term:`OVERRIDES`
-      BitBake uses :term:`OVERRIDES` to control what variables are overridden
-      after BitBake parses recipes and configuration files.
+      A colon-separated list that BitBake uses to control what variables are
+      overridden after BitBake parses recipes and configuration files.
 
       Following is a simple example that uses an overrides list based on
       machine architectures: OVERRIDES = "arm:x86:mips:powerpc" You can

bitbake/doc/index.rst

@@ -13,6 +13,7 @@ BitBake User Manual
    bitbake-user-manual/bitbake-user-manual-intro
    bitbake-user-manual/bitbake-user-manual-execution
    bitbake-user-manual/bitbake-user-manual-metadata
+   bitbake-user-manual/bitbake-user-manual-ref-variables-context
    bitbake-user-manual/bitbake-user-manual-fetching
    bitbake-user-manual/bitbake-user-manual-ref-variables
    bitbake-user-manual/bitbake-user-manual-hello

bitbake/doc/releases.rst

@@ -4,28 +4,46 @@
 BitBake Supported Release Manuals
 =================================
 
+****************************
+Release Series 5.1 (styhead)
+****************************
+
+- :yocto_docs:`BitBake 2.10 User Manual </bitbake/2.10/>`
+
+*******************************
+Release Series 5.0 (scarthgap)
+*******************************
+
+- :yocto_docs:`BitBake 2.8 User Manual </bitbake/2.8/>`
+
+******************************
+Release Series 4.0 (kirkstone)
+******************************
+
+- :yocto_docs:`BitBake 2.0 User Manual </bitbake/2.0/>`
+
+================================
+BitBake Outdated Release Manuals
+================================
+
+*******************************
+Release Series 4.3 (nanbield)
+*******************************
+
+- :yocto_docs:`BitBake 2.6 User Manual </bitbake/2.6/>`
+
+*******************************
+Release Series 4.2 (mickledore)
+*******************************
+
+- :yocto_docs:`BitBake 2.4 User Manual </bitbake/2.4/>`
+
 *****************************
 Release Series 4.1 (langdale)
 *****************************
 
 - :yocto_docs:`BitBake 2.2 User Manual </bitbake/2.2/>`
 
-*****************************
-Release Series 4.0 (kirstone)
-*****************************
-
-- :yocto_docs:`BitBake 2.0 User Manual </bitbake/2.0/>`
-
-****************************
-Release Series 3.1 (dunfell)
-****************************
-
-- :yocto_docs:`BitBake 1.46 User Manual </bitbake/1.46/>`
-
-================================
-BitBake Outdated Release Manuals
-================================
-
 ******************************
 Release Series 3.4 (honister)
 ******************************
@@ -44,10 +62,11 @@ Release Series 3.2 (gatesgarth)
 
 - :yocto_docs:`BitBake 1.48 User Manual </bitbake/1.48/>`
 
-*******************************************
-Release Series 3.1 (dunfell first versions)
-*******************************************
+****************************
+Release Series 3.1 (dunfell)
+****************************
 
+- :yocto_docs:`BitBake 1.46 User Manual </bitbake/1.46/>`
 - :yocto_docs:`3.1 BitBake User Manual </3.1/bitbake-user-manual/bitbake-user-manual.html>`
 - :yocto_docs:`3.1.1 BitBake User Manual </3.1.1/bitbake-user-manual/bitbake-user-manual.html>`
 - :yocto_docs:`3.1.2 BitBake User Manual </3.1.2/bitbake-user-manual/bitbake-user-manual.html>`

bitbake/lib/bb/COW.py

@@ -36,8 +36,9 @@ class COWDictMeta(COWMeta):
     __marker__ = tuple()
 
     def __str__(cls):
-        # FIXME: I have magic numbers!
-        return "<COWDict Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) - 3)
+        ignored_keys = set(["__count__", "__doc__", "__module__", "__firstlineno__", "__static_attributes__"])
+        keys = set(cls.__dict__.keys()) - ignored_keys
+        return "<COWDict Level: %i Current Keys: %i>" % (cls.__count__, len(keys))
 
     __repr__ = __str__
 
@@ -161,8 +162,9 @@ class COWDictMeta(COWMeta):
 
 class COWSetMeta(COWDictMeta):
     def __str__(cls):
-        # FIXME: I have magic numbers!
-        return "<COWSet Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) - 3)
+        ignored_keys = set(["__count__", "__doc__", "__module__", "__firstlineno__", "__static_attributes__"])
+        keys = set(cls.__dict__.keys()) - ignored_keys
+        return "<COWSet Level: %i Current Keys: %i>" % (cls.__count__, len(keys))
 
     __repr__ = __str__
 

bitbake/lib/bb/__init__.py

@@ -9,12 +9,19 @@
 # SPDX-License-Identifier: GPL-2.0-only
 #
 
-__version__ = "2.4.0"
+__version__ = "2.9.1"
 
 import sys
 if sys.version_info < (3, 8, 0):
     raise RuntimeError("Sorry, python 3.8.0 or later is required for this version of bitbake")
 
+if sys.version_info < (3, 10, 0):
+    # With python 3.8 and 3.9, we see errors of "libgcc_s.so.1 must be installed for pthread_cancel to work"
+    # https://stackoverflow.com/questions/64797838/libgcc-s-so-1-must-be-installed-for-pthread-cancel-to-work
+    # https://bugs.ams1.psf.io/issue42888
+    # so ensure libgcc_s is loaded early on
+    import ctypes
+    libgcc_s = ctypes.CDLL('libgcc_s.so.1')
 
 class BBHandledException(Exception):
     """
@@ -29,6 +36,7 @@ class BBHandledException(Exception):
 
 import os
 import logging
+from collections import namedtuple
 
 
 class NullHandler(logging.Handler):
@@ -96,26 +104,6 @@ class BBLoggerAdapter(logging.LoggerAdapter, BBLoggerMixin):
         self.setup_bblogger(logger.name)
         super().__init__(logger, *args, **kwargs)
 
-    if sys.version_info < (3, 6):
-        # These properties were added in Python 3.6. Add them in older versions
-        # for compatibility
-        @property
-        def manager(self):
-            return self.logger.manager
-
-        @manager.setter
-        def manager(self, value):
-            self.logger.manager = value
-
-        @property
-        def name(self):
-            return self.logger.name
-
-        def __repr__(self):
-            logger = self.logger
-            level = logger.getLevelName(logger.getEffectiveLevel())
-            return '<%s %s (%s)>' % (self.__class__.__name__, logger.name, level)
-
 logging.LoggerAdapter = BBLoggerAdapter
 
 logger = logging.getLogger("BitBake")
@@ -206,7 +194,6 @@ def deprecated(func, name=None, advice=""):
 # For compatibility
 def deprecate_import(current, modulename, fromlist, renames = None):
     """Import objects from one module into another, wrapping them with a DeprecationWarning"""
-    import sys
 
     module = __import__(modulename, fromlist = fromlist)
     for position, objname in enumerate(fromlist):
@@ -220,3 +207,14 @@ def deprecate_import(current, modulename, fromlist, renames = None):
 
         setattr(sys.modules[current], newname, newobj)
 
+TaskData = namedtuple("TaskData", [
+    "pn",
+    "taskname",
+    "fn",
+    "deps",
+    "provides",
+    "taskhash",
+    "unihash",
+    "hashfn",
+    "taskhash_deps",
+])

bitbake/lib/bb/acl.py

@@ -0,0 +1,213 @@
+#! /usr/bin/env python3
+#
+# Copyright 2023 by Garmin Ltd. or its subsidiaries
+#
+# SPDX-License-Identifier: MIT
+
+
+import sys
+import ctypes
+import os
+import errno
+import pwd
+import grp
+
+libacl = ctypes.CDLL("libacl.so.1", use_errno=True)
+
+
+ACL_TYPE_ACCESS = 0x8000
+ACL_TYPE_DEFAULT = 0x4000
+
+ACL_FIRST_ENTRY = 0
+ACL_NEXT_ENTRY = 1
+
+ACL_UNDEFINED_TAG = 0x00
+ACL_USER_OBJ = 0x01
+ACL_USER = 0x02
+ACL_GROUP_OBJ = 0x04
+ACL_GROUP = 0x08
+ACL_MASK = 0x10
+ACL_OTHER = 0x20
+
+ACL_READ = 0x04
+ACL_WRITE = 0x02
+ACL_EXECUTE = 0x01
+
+acl_t = ctypes.c_void_p
+acl_entry_t = ctypes.c_void_p
+acl_permset_t = ctypes.c_void_p
+acl_perm_t = ctypes.c_uint
+
+acl_tag_t = ctypes.c_int
+
+libacl.acl_free.argtypes = [acl_t]
+
+
+def acl_free(acl):
+    libacl.acl_free(acl)
+
+
+libacl.acl_get_file.restype = acl_t
+libacl.acl_get_file.argtypes = [ctypes.c_char_p, ctypes.c_uint]
+
+
+def acl_get_file(path, typ):
+    acl = libacl.acl_get_file(os.fsencode(path), typ)
+    if acl is None:
+        err = ctypes.get_errno()
+        raise OSError(err, os.strerror(err), str(path))
+
+    return acl
+
+
+libacl.acl_get_entry.argtypes = [acl_t, ctypes.c_int, ctypes.c_void_p]
+
+
+def acl_get_entry(acl, entry_id):
+    entry = acl_entry_t()
+    ret = libacl.acl_get_entry(acl, entry_id, ctypes.byref(entry))
+    if ret < 0:
+        err = ctypes.get_errno()
+        raise OSError(err, os.strerror(err))
+
+    if ret == 0:
+        return None
+
+    return entry
+
+
+libacl.acl_get_tag_type.argtypes = [acl_entry_t, ctypes.c_void_p]
+
+
+def acl_get_tag_type(entry_d):
+    tag = acl_tag_t()
+    ret = libacl.acl_get_tag_type(entry_d, ctypes.byref(tag))
+    if ret < 0:
+        err = ctypes.get_errno()
+        raise OSError(err, os.strerror(err))
+    return tag.value
+
+
+libacl.acl_get_qualifier.restype = ctypes.c_void_p
+libacl.acl_get_qualifier.argtypes = [acl_entry_t]
+
+
+def acl_get_qualifier(entry_d):
+    ret = libacl.acl_get_qualifier(entry_d)
+    if ret is None:
+        err = ctypes.get_errno()
+        raise OSError(err, os.strerror(err))
+    return ctypes.c_void_p(ret)
+
+
+libacl.acl_get_permset.argtypes = [acl_entry_t, ctypes.c_void_p]
+
+
+def acl_get_permset(entry_d):
+    permset = acl_permset_t()
+    ret = libacl.acl_get_permset(entry_d, ctypes.byref(permset))
+    if ret < 0:
+        err = ctypes.get_errno()
+        raise OSError(err, os.strerror(err))
+
+    return permset
+
+
+libacl.acl_get_perm.argtypes = [acl_permset_t, acl_perm_t]
+
+
+def acl_get_perm(permset_d, perm):
+    ret = libacl.acl_get_perm(permset_d, perm)
+    if ret < 0:
+        err = ctypes.get_errno()
+        raise OSError(err, os.strerror(err))
+    return bool(ret)
+
+
+class Entry(object):
+    def __init__(self, tag, qualifier, mode):
+        self.tag = tag
+        self.qualifier = qualifier
+        self.mode = mode
+
+    def __str__(self):
+        typ = ""
+        qual = ""
+        if self.tag == ACL_USER:
+            typ = "user"
+            qual = pwd.getpwuid(self.qualifier).pw_name
+        elif self.tag == ACL_GROUP:
+            typ = "group"
+            qual = grp.getgrgid(self.qualifier).gr_name
+        elif self.tag == ACL_USER_OBJ:
+            typ = "user"
+        elif self.tag == ACL_GROUP_OBJ:
+            typ = "group"
+        elif self.tag == ACL_MASK:
+            typ = "mask"
+        elif self.tag == ACL_OTHER:
+            typ = "other"
+
+        r = "r" if self.mode & ACL_READ else "-"
+        w = "w" if self.mode & ACL_WRITE else "-"
+        x = "x" if self.mode & ACL_EXECUTE else "-"
+
+        return f"{typ}:{qual}:{r}{w}{x}"
+
+
+class ACL(object):
+    def __init__(self, acl):
+        self.acl = acl
+
+    def __del__(self):
+        acl_free(self.acl)
+
+    def entries(self):
+        entry_id = ACL_FIRST_ENTRY
+        while True:
+            entry = acl_get_entry(self.acl, entry_id)
+            if entry is None:
+                break
+
+            permset = acl_get_permset(entry)
+
+            mode = 0
+            for m in (ACL_READ, ACL_WRITE, ACL_EXECUTE):
+                if acl_get_perm(permset, m):
+                    mode |= m
+
+            qualifier = None
+            tag = acl_get_tag_type(entry)
+
+            if tag == ACL_USER or tag == ACL_GROUP:
+                qual = acl_get_qualifier(entry)
+                qualifier = ctypes.cast(qual, ctypes.POINTER(ctypes.c_int))[0]
+
+            yield Entry(tag, qualifier, mode)
+
+            entry_id = ACL_NEXT_ENTRY
+
+    @classmethod
+    def from_path(cls, path, typ):
+        acl = acl_get_file(path, typ)
+        return cls(acl)
+
+
+def main():
+    import argparse
+    from pathlib import Path
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument("path", help="File Path", type=Path)
+
+    args = parser.parse_args()
+
+    acl = ACL.from_path(args.path, ACL_TYPE_ACCESS)
+    for entry in acl.entries():
+        print(str(entry))
+
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

bitbake/lib/bb/asyncrpc/__init__.py

@@ -4,30 +4,13 @@
 # SPDX-License-Identifier: GPL-2.0-only
 #
 
-import itertools
-import json
-
-# The Python async server defaults to a 64K receive buffer, so we hardcode our
-# maximum chunk size. It would be better if the client and server reported to
-# each other what the maximum chunk sizes were, but that will slow down the
-# connection setup with a round trip delay so I'd rather not do that unless it
-# is necessary
-DEFAULT_MAX_CHUNK = 32 * 1024
-
-
-def chunkify(msg, max_chunk):
-    if len(msg) < max_chunk - 1:
-        yield ''.join((msg, "\n"))
-    else:
-        yield ''.join((json.dumps({
-                'chunk-stream': None
-            }), "\n"))
-
-        args = [iter(msg)] * (max_chunk - 1)
-        for m in map(''.join, itertools.zip_longest(*args, fillvalue='')):
-            yield ''.join(itertools.chain(m, "\n"))
-        yield "\n"
-
 
 from .client import AsyncClient, Client
-from .serv import AsyncServer, AsyncServerConnection, ClientError, ServerError
+from .serv import AsyncServer, AsyncServerConnection
+from .connection import DEFAULT_MAX_CHUNK
+from .exceptions import (
+    ClientError,
+    ServerError,
+    ConnectionClosedError,
+    InvokeError,
+)

bitbake/lib/bb/asyncrpc/client.py

@@ -10,22 +10,66 @@ import json
 import os
 import socket
 import sys
-from . import chunkify, DEFAULT_MAX_CHUNK
+import re
+import contextlib
+from threading import Thread
+from .connection import StreamConnection, WebsocketConnection, DEFAULT_MAX_CHUNK
+from .exceptions import ConnectionClosedError, InvokeError
+
+UNIX_PREFIX = "unix://"
+WS_PREFIX = "ws://"
+WSS_PREFIX = "wss://"
+
+ADDR_TYPE_UNIX = 0
+ADDR_TYPE_TCP = 1
+ADDR_TYPE_WS = 2
+
+WEBSOCKETS_MIN_VERSION = (9, 1)
+# Need websockets 10 with python 3.10+
+if sys.version_info >= (3, 10, 0):
+    WEBSOCKETS_MIN_VERSION = (10, 0)
+
+
+def parse_address(addr):
+    if addr.startswith(UNIX_PREFIX):
+        return (ADDR_TYPE_UNIX, (addr[len(UNIX_PREFIX) :],))
+    elif addr.startswith(WS_PREFIX) or addr.startswith(WSS_PREFIX):
+        return (ADDR_TYPE_WS, (addr,))
+    else:
+        m = re.match(r"\[(?P<host>[^\]]*)\]:(?P<port>\d+)$", addr)
+        if m is not None:
+            host = m.group("host")
+            port = m.group("port")
+        else:
+            host, port = addr.split(":")
+
+        return (ADDR_TYPE_TCP, (host, int(port)))
 
 
 class AsyncClient(object):
-    def __init__(self, proto_name, proto_version, logger, timeout=30):
-        self.reader = None
-        self.writer = None
+    def __init__(
+        self,
+        proto_name,
+        proto_version,
+        logger,
+        timeout=30,
+        server_headers=False,
+        headers={},
+    ):
+        self.socket = None
         self.max_chunk = DEFAULT_MAX_CHUNK
         self.proto_name = proto_name
         self.proto_version = proto_version
         self.logger = logger
         self.timeout = timeout
+        self.needs_server_headers = server_headers
+        self.server_headers = {}
+        self.headers = headers
 
     async def connect_tcp(self, address, port):
         async def connect_sock():
-            return await asyncio.open_connection(address, port)
+            reader, writer = await asyncio.open_connection(address, port)
+            return StreamConnection(reader, writer, self.timeout, self.max_chunk)
 
         self._connect_sock = connect_sock
 
@@ -40,27 +84,86 @@ class AsyncClient(object):
                 sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM, 0)
                 sock.connect(os.path.basename(path))
             finally:
-               os.chdir(cwd)
-            return await asyncio.open_unix_connection(sock=sock)
+                os.chdir(cwd)
+            reader, writer = await asyncio.open_unix_connection(sock=sock)
+            return StreamConnection(reader, writer, self.timeout, self.max_chunk)
+
+        self._connect_sock = connect_sock
+
+    async def connect_websocket(self, uri):
+        import websockets
+
+        try:
+            version = tuple(
+                int(v)
+                for v in websockets.__version__.split(".")[
+                    0 : len(WEBSOCKETS_MIN_VERSION)
+                ]
+            )
+        except ValueError:
+            raise ImportError(
+                f"Unable to parse websockets version '{websockets.__version__}'"
+            )
+
+        if version < WEBSOCKETS_MIN_VERSION:
+            min_ver_str = ".".join(str(v) for v in WEBSOCKETS_MIN_VERSION)
+            raise ImportError(
+                f"Websockets version {websockets.__version__} is less than minimum required version {min_ver_str}"
+            )
+
+        async def connect_sock():
+            try:
+                websocket = await websockets.connect(
+                    uri,
+                    ping_interval=None,
+                    open_timeout=self.timeout,
+                )
+            except asyncio.exceptions.TimeoutError:
+                raise ConnectionError("Timeout while connecting to websocket")
+            except (OSError, websockets.InvalidHandshake, websockets.InvalidURI) as exc:
+                raise ConnectionError(f"Could not connect to websocket: {exc}") from exc
+            return WebsocketConnection(websocket, self.timeout)
 
         self._connect_sock = connect_sock
 
     async def setup_connection(self):
-        s = '%s %s\n\n' % (self.proto_name, self.proto_version)
-        self.writer.write(s.encode("utf-8"))
-        await self.writer.drain()
+        # Send headers
+        await self.socket.send("%s %s" % (self.proto_name, self.proto_version))
+        await self.socket.send(
+            "needs-headers: %s" % ("true" if self.needs_server_headers else "false")
+        )
+        for k, v in self.headers.items():
+            await self.socket.send("%s: %s" % (k, v))
+
+        # End of headers
+        await self.socket.send("")
+
+        self.server_headers = {}
+        if self.needs_server_headers:
+            while True:
+                line = await self.socket.recv()
+                if not line:
+                    # End headers
+                    break
+                tag, value = line.split(":", 1)
+                self.server_headers[tag.lower()] = value.strip()
+
+    async def get_header(self, tag, default):
+        await self.connect()
+        return self.server_headers.get(tag, default)
 
     async def connect(self):
-        if self.reader is None or self.writer is None:
-            (self.reader, self.writer) = await self._connect_sock()
+        if self.socket is None:
+            self.socket = await self._connect_sock()
             await self.setup_connection()
 
-    async def close(self):
-        self.reader = None
+    async def disconnect(self):
+        if self.socket is not None:
+            await self.socket.close()
+            self.socket = None
 
-        if self.writer is not None:
-            self.writer.close()
-            self.writer = None
+    async def close(self):
+        await self.disconnect()
 
     async def _send_wrapper(self, proc):
         count = 0
@@ -71,6 +174,7 @@ class AsyncClient(object):
             except (
                 OSError,
                 ConnectionError,
+                ConnectionClosedError,
                 json.JSONDecodeError,
                 UnicodeDecodeError,
             ) as e:
@@ -82,49 +186,27 @@ class AsyncClient(object):
                 await self.close()
                 count += 1
 
-    async def send_message(self, msg):
-        async def get_line():
-            try:
-                line = await asyncio.wait_for(self.reader.readline(), self.timeout)
-            except asyncio.TimeoutError:
-                raise ConnectionError("Timed out waiting for server")
-
-            if not line:
-                raise ConnectionError("Connection closed")
-
-            line = line.decode("utf-8")
-
-            if not line.endswith("\n"):
-                raise ConnectionError("Bad message %r" % (line))
-
-            return line
+    def check_invoke_error(self, msg):
+        if isinstance(msg, dict) and "invoke-error" in msg:
+            raise InvokeError(msg["invoke-error"]["message"])
 
+    async def invoke(self, msg):
         async def proc():
-            for c in chunkify(json.dumps(msg), self.max_chunk):
-                self.writer.write(c.encode("utf-8"))
-            await self.writer.drain()
+            await self.socket.send_message(msg)
+            return await self.socket.recv_message()
 
-            l = await get_line()
-
-            m = json.loads(l)
-            if m and "chunk-stream" in m:
-                lines = []
-                while True:
-                    l = (await get_line()).rstrip("\n")
-                    if not l:
-                        break
-                    lines.append(l)
-
-                m = json.loads("".join(lines))
-
-            return m
-
-        return await self._send_wrapper(proc)
+        result = await self._send_wrapper(proc)
+        self.check_invoke_error(result)
+        return result
 
     async def ping(self):
-        return await self.send_message(
-            {'ping': {}}
-        )
+        return await self.invoke({"ping": {}})
+
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, exc_type, exc_value, traceback):
+        await self.close()
 
 
 class Client(object):
@@ -142,7 +224,7 @@ class Client(object):
         # required (but harmless) with it.
         asyncio.set_event_loop(self.loop)
 
-        self._add_methods('connect_tcp', 'ping')
+        self._add_methods("connect_tcp", "ping")
 
     @abc.abstractmethod
     def _get_async_client(self):
@@ -171,8 +253,19 @@ class Client(object):
     def max_chunk(self, value):
         self.client.max_chunk = value
 
-    def close(self):
+    def disconnect(self):
         self.loop.run_until_complete(self.client.close())
-        if sys.version_info >= (3, 6):
+
+    def close(self):
+        if self.loop:
+            self.loop.run_until_complete(self.client.close())
             self.loop.run_until_complete(self.loop.shutdown_asyncgens())
-        self.loop.close()
+            self.loop.close()
+        self.loop = None
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        self.close()
+        return False

bitbake/lib/bb/asyncrpc/connection.py

@@ -0,0 +1,146 @@
+#
+# Copyright BitBake Contributors
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+import asyncio
+import itertools
+import json
+from datetime import datetime
+from .exceptions import ClientError, ConnectionClosedError
+
+
+# The Python async server defaults to a 64K receive buffer, so we hardcode our
+# maximum chunk size. It would be better if the client and server reported to
+# each other what the maximum chunk sizes were, but that will slow down the
+# connection setup with a round trip delay so I'd rather not do that unless it
+# is necessary
+DEFAULT_MAX_CHUNK = 32 * 1024
+
+
+def chunkify(msg, max_chunk):
+    if len(msg) < max_chunk - 1:
+        yield "".join((msg, "\n"))
+    else:
+        yield "".join((json.dumps({"chunk-stream": None}), "\n"))
+
+        args = [iter(msg)] * (max_chunk - 1)
+        for m in map("".join, itertools.zip_longest(*args, fillvalue="")):
+            yield "".join(itertools.chain(m, "\n"))
+        yield "\n"
+
+
+def json_serialize(obj):
+    if isinstance(obj, datetime):
+        return obj.isoformat()
+    raise TypeError("Type %s not serializeable" % type(obj))
+
+
+class StreamConnection(object):
+    def __init__(self, reader, writer, timeout, max_chunk=DEFAULT_MAX_CHUNK):
+        self.reader = reader
+        self.writer = writer
+        self.timeout = timeout
+        self.max_chunk = max_chunk
+
+    @property
+    def address(self):
+        return self.writer.get_extra_info("peername")
+
+    async def send_message(self, msg):
+        for c in chunkify(json.dumps(msg, default=json_serialize), self.max_chunk):
+            self.writer.write(c.encode("utf-8"))
+        await self.writer.drain()
+
+    async def recv_message(self):
+        l = await self.recv()
+
+        m = json.loads(l)
+        if not m:
+            return m
+
+        if "chunk-stream" in m:
+            lines = []
+            while True:
+                l = await self.recv()
+                if not l:
+                    break
+                lines.append(l)
+
+            m = json.loads("".join(lines))
+
+        return m
+
+    async def send(self, msg):
+        self.writer.write(("%s\n" % msg).encode("utf-8"))
+        await self.writer.drain()
+
+    async def recv(self):
+        if self.timeout < 0:
+            line = await self.reader.readline()
+        else:
+            try:
+                line = await asyncio.wait_for(self.reader.readline(), self.timeout)
+            except asyncio.TimeoutError:
+                raise ConnectionError("Timed out waiting for data")
+
+        if not line:
+            raise ConnectionClosedError("Connection closed")
+
+        line = line.decode("utf-8")
+
+        if not line.endswith("\n"):
+            raise ConnectionError("Bad message %r" % (line))
+
+        return line.rstrip()
+
+    async def close(self):
+        self.reader = None
+        if self.writer is not None:
+            self.writer.close()
+            self.writer = None
+
+
+class WebsocketConnection(object):
+    def __init__(self, socket, timeout):
+        self.socket = socket
+        self.timeout = timeout
+
+    @property
+    def address(self):
+        return ":".join(str(s) for s in self.socket.remote_address)
+
+    async def send_message(self, msg):
+        await self.send(json.dumps(msg, default=json_serialize))
+
+    async def recv_message(self):
+        m = await self.recv()
+        return json.loads(m)
+
+    async def send(self, msg):
+        import websockets.exceptions
+
+        try:
+            await self.socket.send(msg)
+        except websockets.exceptions.ConnectionClosed:
+            raise ConnectionClosedError("Connection closed")
+
+    async def recv(self):
+        import websockets.exceptions
+
+        try:
+            if self.timeout < 0:
+                return await self.socket.recv()
+
+            try:
+                return await asyncio.wait_for(self.socket.recv(), self.timeout)
+            except asyncio.TimeoutError:
+                raise ConnectionError("Timed out waiting for data")
+        except websockets.exceptions.ConnectionClosed:
+            raise ConnectionClosedError("Connection closed")
+
+    async def close(self):
+        if self.socket is not None:
+            await self.socket.close()
+            self.socket = None

bitbake/lib/bb/asyncrpc/exceptions.py

@@ -0,0 +1,21 @@
+#
+# Copyright BitBake Contributors
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+
+class ClientError(Exception):
+    pass
+
+
+class InvokeError(Exception):
+    pass
+
+
+class ServerError(Exception):
+    pass
+
+
+class ConnectionClosedError(Exception):
+    pass

bitbake/lib/bb/asyncrpc/serv.py

@@ -12,241 +12,353 @@ import signal
 import socket
 import sys
 import multiprocessing
-from . import chunkify, DEFAULT_MAX_CHUNK
+import logging
+from .connection import StreamConnection, WebsocketConnection
+from .exceptions import ClientError, ServerError, ConnectionClosedError, InvokeError
 
 
-class ClientError(Exception):
-    pass
-
-
-class ServerError(Exception):
-    pass
+class ClientLoggerAdapter(logging.LoggerAdapter):
+    def process(self, msg, kwargs):
+        return f"[Client {self.extra['address']}] {msg}", kwargs
 
 
 class AsyncServerConnection(object):
-    def __init__(self, reader, writer, proto_name, logger):
-        self.reader = reader
-        self.writer = writer
+    # If a handler returns this object (e.g. `return self.NO_RESPONSE`), no
+    # return message will be automatically be sent back to the client
+    NO_RESPONSE = object()
+
+    def __init__(self, socket, proto_name, logger):
+        self.socket = socket
         self.proto_name = proto_name
-        self.max_chunk = DEFAULT_MAX_CHUNK
         self.handlers = {
-            'chunk-stream': self.handle_chunk,
-            'ping': self.handle_ping,
+            "ping": self.handle_ping,
         }
-        self.logger = logger
+        self.logger = ClientLoggerAdapter(
+            logger,
+            {
+                "address": socket.address,
+            },
+        )
+        self.client_headers = {}
+
+    async def close(self):
+        await self.socket.close()
+
+    async def handle_headers(self, headers):
+        return {}
 
     async def process_requests(self):
         try:
-            self.addr = self.writer.get_extra_info('peername')
-            self.logger.debug('Client %r connected' % (self.addr,))
+            self.logger.info("Client %r connected" % (self.socket.address,))
 
             # Read protocol and version
-            client_protocol = await self.reader.readline()
+            client_protocol = await self.socket.recv()
             if not client_protocol:
                 return
 
-            (client_proto_name, client_proto_version) = client_protocol.decode('utf-8').rstrip().split()
+            (client_proto_name, client_proto_version) = client_protocol.split()
             if client_proto_name != self.proto_name:
-                self.logger.debug('Rejecting invalid protocol %s' % (self.proto_name))
+                self.logger.debug("Rejecting invalid protocol %s" % (self.proto_name))
                 return
 
-            self.proto_version = tuple(int(v) for v in client_proto_version.split('.'))
+            self.proto_version = tuple(int(v) for v in client_proto_version.split("."))
             if not self.validate_proto_version():
-                self.logger.debug('Rejecting invalid protocol version %s' % (client_proto_version))
+                self.logger.debug(
+                    "Rejecting invalid protocol version %s" % (client_proto_version)
+                )
                 return
 
-            # Read headers. Currently, no headers are implemented, so look for
-            # an empty line to signal the end of the headers
+            # Read headers
+            self.client_headers = {}
             while True:
-                line = await self.reader.readline()
-                if not line:
-                    return
-
-                line = line.decode('utf-8').rstrip()
-                if not line:
+                header = await self.socket.recv()
+                if not header:
+                    # Empty line. End of headers
                     break
+                tag, value = header.split(":", 1)
+                self.client_headers[tag.lower()] = value.strip()
+
+            if self.client_headers.get("needs-headers", "false") == "true":
+                for k, v in (await self.handle_headers(self.client_headers)).items():
+                    await self.socket.send("%s: %s" % (k, v))
+                await self.socket.send("")
 
             # Handle messages
             while True:
-                d = await self.read_message()
+                d = await self.socket.recv_message()
                 if d is None:
                     break
-                await self.dispatch_message(d)
-                await self.writer.drain()
-        except ClientError as e:
+                try:
+                    response = await self.dispatch_message(d)
+                except InvokeError as e:
+                    await self.socket.send_message(
+                        {"invoke-error": {"message": str(e)}}
+                    )
+                    break
+
+                if response is not self.NO_RESPONSE:
+                    await self.socket.send_message(response)
+
+        except ConnectionClosedError as e:
+            self.logger.info(str(e))
+        except (ClientError, ConnectionError) as e:
             self.logger.error(str(e))
         finally:
-            self.writer.close()
+            await self.close()
 
     async def dispatch_message(self, msg):
         for k in self.handlers.keys():
             if k in msg:
-                self.logger.debug('Handling %s' % k)
-                await self.handlers[k](msg[k])
-                return
+                self.logger.debug("Handling %s" % k)
+                return await self.handlers[k](msg[k])
 
         raise ClientError("Unrecognized command %r" % msg)
 
-    def write_message(self, msg):
-        for c in chunkify(json.dumps(msg), self.max_chunk):
-            self.writer.write(c.encode('utf-8'))
-
-    async def read_message(self):
-        l = await self.reader.readline()
-        if not l:
-            return None
-
-        try:
-            message = l.decode('utf-8')
-
-            if not message.endswith('\n'):
-                return None
-
-            return json.loads(message)
-        except (json.JSONDecodeError, UnicodeDecodeError) as e:
-            self.logger.error('Bad message from client: %r' % message)
-            raise e
-
-    async def handle_chunk(self, request):
-        lines = []
-        try:
-            while True:
-                l = await self.reader.readline()
-                l = l.rstrip(b"\n").decode("utf-8")
-                if not l:
-                    break
-                lines.append(l)
-
-            msg = json.loads(''.join(lines))
-        except (json.JSONDecodeError, UnicodeDecodeError) as e:
-            self.logger.error('Bad message from client: %r' % lines)
-            raise e
-
-        if 'chunk-stream' in msg:
-            raise ClientError("Nested chunks are not allowed")
-
-        await self.dispatch_message(msg)
-
     async def handle_ping(self, request):
-        response = {'alive': True}
-        self.write_message(response)
+        return {"alive": True}
+
+
+class StreamServer(object):
+    def __init__(self, handler, logger):
+        self.handler = handler
+        self.logger = logger
+        self.closed = False
+
+    async def handle_stream_client(self, reader, writer):
+        # writer.transport.set_write_buffer_limits(0)
+        socket = StreamConnection(reader, writer, -1)
+        if self.closed:
+            await socket.close()
+            return
+
+        await self.handler(socket)
+
+    async def stop(self):
+        self.closed = True
+
+
+class TCPStreamServer(StreamServer):
+    def __init__(self, host, port, handler, logger, *, reuseport=False):
+        super().__init__(handler, logger)
+        self.host = host
+        self.port = port
+        self.reuseport = reuseport
+
+    def start(self, loop):
+        self.server = loop.run_until_complete(
+            asyncio.start_server(
+                self.handle_stream_client,
+                self.host,
+                self.port,
+                reuse_port=self.reuseport,
+            )
+        )
+
+        for s in self.server.sockets:
+            self.logger.debug("Listening on %r" % (s.getsockname(),))
+            # Newer python does this automatically. Do it manually here for
+            # maximum compatibility
+            s.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
+            s.setsockopt(socket.SOL_TCP, socket.TCP_QUICKACK, 1)
+
+            # Enable keep alives. This prevents broken client connections
+            # from persisting on the server for long periods of time.
+            s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
+            s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, 30)
+            s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, 15)
+            s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, 4)
+
+        name = self.server.sockets[0].getsockname()
+        if self.server.sockets[0].family == socket.AF_INET6:
+            self.address = "[%s]:%d" % (name[0], name[1])
+        else:
+            self.address = "%s:%d" % (name[0], name[1])
+
+        return [self.server.wait_closed()]
+
+    async def stop(self):
+        await super().stop()
+        self.server.close()
+
+    def cleanup(self):
+        pass
+
+
+class UnixStreamServer(StreamServer):
+    def __init__(self, path, handler, logger):
+        super().__init__(handler, logger)
+        self.path = path
+
+    def start(self, loop):
+        cwd = os.getcwd()
+        try:
+            # Work around path length limits in AF_UNIX
+            os.chdir(os.path.dirname(self.path))
+            self.server = loop.run_until_complete(
+                asyncio.start_unix_server(
+                    self.handle_stream_client, os.path.basename(self.path)
+                )
+            )
+        finally:
+            os.chdir(cwd)
+
+        self.logger.debug("Listening on %r" % self.path)
+        self.address = "unix://%s" % os.path.abspath(self.path)
+        return [self.server.wait_closed()]
+
+    async def stop(self):
+        await super().stop()
+        self.server.close()
+
+    def cleanup(self):
+        os.unlink(self.path)
+
+
+class WebsocketsServer(object):
+    def __init__(self, host, port, handler, logger, *, reuseport=False):
+        self.host = host
+        self.port = port
+        self.handler = handler
+        self.logger = logger
+        self.reuseport = reuseport
+
+    def start(self, loop):
+        import websockets.server
+
+        self.server = loop.run_until_complete(
+            websockets.server.serve(
+                self.client_handler,
+                self.host,
+                self.port,
+                ping_interval=None,
+                reuse_port=self.reuseport,
+            )
+        )
+
+        for s in self.server.sockets:
+            self.logger.debug("Listening on %r" % (s.getsockname(),))
+
+            # Enable keep alives. This prevents broken client connections
+            # from persisting on the server for long periods of time.
+            s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
+            s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, 30)
+            s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, 15)
+            s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, 4)
+
+        name = self.server.sockets[0].getsockname()
+        if self.server.sockets[0].family == socket.AF_INET6:
+            self.address = "ws://[%s]:%d" % (name[0], name[1])
+        else:
+            self.address = "ws://%s:%d" % (name[0], name[1])
+
+        return [self.server.wait_closed()]
+
+    async def stop(self):
+        self.server.close()
+
+    def cleanup(self):
+        pass
+
+    async def client_handler(self, websocket):
+        socket = WebsocketConnection(websocket, -1)
+        await self.handler(socket)
 
 
 class AsyncServer(object):
     def __init__(self, logger):
-        self._cleanup_socket = None
         self.logger = logger
-        self.start = None
-        self.address = None
         self.loop = None
+        self.run_tasks = []
 
-    def start_tcp_server(self, host, port):
-        def start_tcp():
-            self.server = self.loop.run_until_complete(
-                asyncio.start_server(self.handle_client, host, port)
-            )
-
-            for s in self.server.sockets:
-                self.logger.debug('Listening on %r' % (s.getsockname(),))
-                # Newer python does this automatically. Do it manually here for
-                # maximum compatibility
-                s.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
-                s.setsockopt(socket.SOL_TCP, socket.TCP_QUICKACK, 1)
-
-                # Enable keep alives. This prevents broken client connections
-                # from persisting on the server for long periods of time.
-                s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
-                s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, 30)
-                s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, 15)
-                s.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, 4)
-
-            name = self.server.sockets[0].getsockname()
-            if self.server.sockets[0].family == socket.AF_INET6:
-                self.address = "[%s]:%d" % (name[0], name[1])
-            else:
-                self.address = "%s:%d" % (name[0], name[1])
-
-        self.start = start_tcp
+    def start_tcp_server(self, host, port, *, reuseport=False):
+        self.server = TCPStreamServer(
+            host,
+            port,
+            self._client_handler,
+            self.logger,
+            reuseport=reuseport,
+        )
 
     def start_unix_server(self, path):
-        def cleanup():
-            os.unlink(path)
+        self.server = UnixStreamServer(path, self._client_handler, self.logger)
 
-        def start_unix():
-            cwd = os.getcwd()
-            try:
-                # Work around path length limits in AF_UNIX
-                os.chdir(os.path.dirname(path))
-                self.server = self.loop.run_until_complete(
-                    asyncio.start_unix_server(self.handle_client, os.path.basename(path))
-                )
-            finally:
-                os.chdir(cwd)
+    def start_websocket_server(self, host, port, reuseport=False):
+        self.server = WebsocketsServer(
+            host,
+            port,
+            self._client_handler,
+            self.logger,
+            reuseport=reuseport,
+        )
 
-            self.logger.debug('Listening on %r' % path)
-
-            self._cleanup_socket = cleanup
-            self.address = "unix://%s" % os.path.abspath(path)
-
-        self.start = start_unix
-
-    @abc.abstractmethod
-    def accept_client(self, reader, writer):
-        pass
-
-    async def handle_client(self, reader, writer):
-        # writer.transport.set_write_buffer_limits(0)
+    async def _client_handler(self, socket):
+        address = socket.address
         try:
-            client = self.accept_client(reader, writer)
+            client = self.accept_client(socket)
             await client.process_requests()
         except Exception as e:
             import traceback
-            self.logger.error('Error from client: %s' % str(e), exc_info=True)
-            traceback.print_exc()
-            writer.close()
-        self.logger.debug('Client disconnected')
 
-    def run_loop_forever(self):
-        try:
-            self.loop.run_forever()
-        except KeyboardInterrupt:
-            pass
+            self.logger.error(
+                "Error from client %s: %s" % (address, str(e)), exc_info=True
+            )
+            traceback.print_exc()
+        finally:
+            self.logger.debug("Client %s disconnected", address)
+            await socket.close()
+
+    @abc.abstractmethod
+    def accept_client(self, socket):
+        pass
+
+    async def stop(self):
+        self.logger.debug("Stopping server")
+        await self.server.stop()
+
+    def start(self):
+        tasks = self.server.start(self.loop)
+        self.address = self.server.address
+        return tasks
 
     def signal_handler(self):
         self.logger.debug("Got exit signal")
-        self.loop.stop()
+        self.loop.create_task(self.stop())
 
-    def _serve_forever(self):
+    def _serve_forever(self, tasks):
         try:
             self.loop.add_signal_handler(signal.SIGTERM, self.signal_handler)
+            self.loop.add_signal_handler(signal.SIGINT, self.signal_handler)
+            self.loop.add_signal_handler(signal.SIGQUIT, self.signal_handler)
             signal.pthread_sigmask(signal.SIG_UNBLOCK, [signal.SIGTERM])
 
-            self.run_loop_forever()
-            self.server.close()
+            self.loop.run_until_complete(asyncio.gather(*tasks))
 
-            self.loop.run_until_complete(self.server.wait_closed())
-            self.logger.debug('Server shutting down')
+            self.logger.debug("Server shutting down")
         finally:
-            if self._cleanup_socket is not None:
-                self._cleanup_socket()
+            self.server.cleanup()
 
     def serve_forever(self):
         """
         Serve requests in the current process
         """
+        self._create_loop()
+        tasks = self.start()
+        self._serve_forever(tasks)
+        self.loop.close()
+
+    def _create_loop(self):
         # Create loop and override any loop that may have existed in
         # a parent process.  It is possible that the usecases of
         # serve_forever might be constrained enough to allow using
         # get_event_loop here, but better safe than sorry for now.
         self.loop = asyncio.new_event_loop()
         asyncio.set_event_loop(self.loop)
-        self.start()
-        self._serve_forever()
 
-    def serve_as_process(self, *, prefunc=None, args=()):
+    def serve_as_process(self, *, prefunc=None, args=(), log_level=None):
         """
         Serve requests in a child process
         """
+
         def run(queue):
             # Create loop and override any loop that may have existed
             # in a parent process.  Without doing this and instead
@@ -259,21 +371,24 @@ class AsyncServer(object):
             # more general, though, as any potential use of asyncio in
             # Cooker could create a loop that needs to replaced in this
             # new process.
-            self.loop = asyncio.new_event_loop()
-            asyncio.set_event_loop(self.loop)
+            self._create_loop()
             try:
-                self.start()
+                self.address = None
+                tasks = self.start()
             finally:
+                # Always put the server address to wake up the parent task
                 queue.put(self.address)
                 queue.close()
 
             if prefunc is not None:
                 prefunc(self, *args)
 
-            self._serve_forever()
+            if log_level is not None:
+                self.logger.setLevel(log_level)
 
-            if sys.version_info >= (3, 6):
-                self.loop.run_until_complete(self.loop.shutdown_asyncgens())
+            self._serve_forever(tasks)
+
+            self.loop.run_until_complete(self.loop.shutdown_asyncgens())
             self.loop.close()
 
         queue = multiprocessing.Queue()

bitbake/lib/bb/build.py

@@ -197,6 +197,8 @@ def exec_func(func, d, dirs = None):
         for cdir in d.expand(cleandirs).split():
             bb.utils.remove(cdir, True)
             bb.utils.mkdirhier(cdir)
+            if cdir == oldcwd:
+                os.chdir(cdir)
 
     if flags and dirs is None:
         dirs = flags.get('dirs')
@@ -395,7 +397,7 @@ def create_progress_handler(func, progress, logfile, d):
         # Use specified regex
         return bb.progress.OutOfProgressHandler(d, regex=progress.split(':', 1)[1], outfile=logfile)
     elif progress.startswith("custom:"):
-        # Use a custom progress handler that was injected via OE_EXTRA_IMPORTS or __builtins__
+        # Use a custom progress handler that was injected via other means
         import functools
         from types import ModuleType
 
@@ -741,7 +743,7 @@ def _exec_task(fn, task, d, quieterr):
 
         if quieterr:
             if not handled:
-                logger.warning(repr(exc))
+                logger.warning(str(exc))
             event.fire(TaskFailedSilent(task, fn, logfn, localdata), localdata)
         else:
             errprinted = errchk.triggered
@@ -750,7 +752,7 @@ def _exec_task(fn, task, d, quieterr):
             if verboseStdoutLogging or handled:
                 errprinted = True
             if not handled:
-                logger.error(repr(exc))
+                logger.error(str(exc))
             event.fire(TaskFailed(task, fn, logfn, localdata, errprinted), localdata)
         return 1
 
@@ -930,9 +932,13 @@ def add_tasks(tasklist, d):
     # don't assume holding a reference
     d.setVar('_task_deps', task_deps)
 
+def ensure_task_prefix(name):
+    if name[:3] != "do_":
+        name = "do_" + name
+    return name
+
 def addtask(task, before, after, d):
-    if task[:3] != "do_":
-        task = "do_" + task
+    task = ensure_task_prefix(task)
 
     d.setVarFlag(task, "task", 1)
     bbtasks = d.getVar('__BBTASKS', False) or []
@@ -944,19 +950,20 @@ def addtask(task, before, after, d):
     if after is not None:
         # set up deps for function
         for entry in after.split():
+            entry = ensure_task_prefix(entry)
             if entry not in existing:
                 existing.append(entry)
     d.setVarFlag(task, "deps", existing)
     if before is not None:
         # set up things that depend on this func
         for entry in before.split():
+            entry = ensure_task_prefix(entry)
             existing = d.getVarFlag(entry, "deps", False) or []
             if task not in existing:
                 d.setVarFlag(entry, "deps", [task] + existing)
 
 def deltask(task, d):
-    if task[:3] != "do_":
-        task = "do_" + task
+    task = ensure_task_prefix(task)
 
     bbtasks = d.getVar('__BBTASKS', False) or []
     if task in bbtasks:
@@ -1021,3 +1028,9 @@ def tasksbetween(task_start, task_end, d):
         chain.pop()
     follow_chain(task_start, task_end)
     return outtasks
+
+def listtasks(d):
+    """
+    Return the list of tasks in the current recipe.
+    """
+    return tuple(d.getVar('__BBTASKS', False) or ())

bitbake/lib/bb/cache.py

@@ -28,7 +28,7 @@ import shutil
 
 logger = logging.getLogger("BitBake.Cache")
 
-__cache_version__ = "155"
+__cache_version__ = "156"
 
 def getCacheFile(path, filename, mc, data_hash):
     mcspec = ''
@@ -344,9 +344,7 @@ def virtualfn2realfn(virtualfn):
     """
     mc = ""
     if virtualfn.startswith('mc:') and virtualfn.count(':') >= 2:
-        elems = virtualfn.split(':')
-        mc = elems[1]
-        virtualfn = ":".join(elems[2:])
+        (_, mc, virtualfn) = virtualfn.split(':', 2)
 
     fn = virtualfn
     cls = ""
@@ -369,7 +367,7 @@ def realfn2virtual(realfn, cls, mc):
 
 def variant2virtual(realfn, variant):
     """
-    Convert a real filename + the associated subclass keyword to a virtual filename
+    Convert a real filename + a variant to a virtual filename
     """
     if variant == "":
         return realfn
@@ -397,7 +395,7 @@ class Cache(object):
         # It will be used later for deciding whether we
         # need extra cache file dump/load support
         self.mc = mc
-        self.logger = PrefixLoggerAdapter("Cache: %s: " % (mc if mc else "default"), logger)
+        self.logger = PrefixLoggerAdapter("Cache: %s: " % (mc if mc else ''), logger)
         self.caches_array = caches_array
         self.cachedir = self.data.getVar("CACHE")
         self.clean = set()
@@ -443,7 +441,7 @@ class Cache(object):
         else:
             symlink = os.path.join(self.cachedir, "bb_cache.dat")
 
-        if os.path.exists(symlink):
+        if os.path.exists(symlink) or os.path.islink(symlink):
             bb.utils.remove(symlink)
         try:
             os.symlink(os.path.basename(self.cachefile), symlink)
@@ -514,11 +512,11 @@ class Cache(object):
 
         return len(self.depends_cache)
 
-    def parse(self, filename, appends):
+    def parse(self, filename, appends, layername):
         """Parse the specified filename, returning the recipe information"""
         self.logger.debug("Parsing %s", filename)
         infos = []
-        datastores = self.databuilder.parseRecipeVariants(filename, appends, mc=self.mc)
+        datastores = self.databuilder.parseRecipeVariants(filename, appends, mc=self.mc, layername=layername)
         depends = []
         variants = []
         # Process the "real" fn last so we can store variants list
@@ -781,25 +779,6 @@ class MulticonfigCache(Mapping):
         for k in self.__caches:
             yield k
 
-def init(cooker):
-    """
-    The Objective: Cache the minimum amount of data possible yet get to the
-    stage of building packages (i.e. tryBuild) without reparsing any .bb files.
-
-    To do this, we intercept getVar calls and only cache the variables we see
-    being accessed. We rely on the cache getVar calls being made for all
-    variables bitbake might need to use to reach this stage. For each cached
-    file we need to track:
-
-    * Its mtime
-    * The mtimes of all its dependencies
-    * Whether it caused a parse.SkipRecipe exception
-
-    Files causing parsing errors are evicted from the cache.
-
-    """
-    return Cache(cooker.configuration.data, cooker.configuration.data_hash)
-
 
 class CacheData(object):
     """
@@ -868,6 +847,16 @@ class MultiProcessCache(object):
         data = [{}]
         return data
 
+    def clear_cache(self):
+        if not self.cachefile:
+            bb.fatal("Can't clear invalid cachefile")
+
+        self.cachedata = self.create_cachedata()
+        self.cachedata_extras = self.create_cachedata()
+        with bb.utils.fileslocked([self.cachefile + ".lock"]):
+            bb.utils.remove(self.cachefile)
+            bb.utils.remove(self.cachefile + "-*")
+
     def save_extras(self):
         if not self.cachefile:
             return

bitbake/lib/bb/checksum.py

@@ -142,3 +142,28 @@ class FileChecksumCache(MultiProcessCache):
 
         checksums.sort(key=operator.itemgetter(1))
         return checksums
+
+class RevisionsCache(MultiProcessCache):
+    cache_file_name = "local_srcrevisions.dat"
+    CACHE_VERSION = 1
+
+    def __init__(self):
+        MultiProcessCache.__init__(self)
+
+    def get_revs(self):
+        return self.cachedata[0]
+
+    def get_rev(self, k):
+        if k in self.cachedata_extras[0]:
+            return self.cachedata_extras[0][k]
+        if k in self.cachedata[0]:
+            return self.cachedata[0][k]
+        return None
+
+    def set_rev(self, k, v):
+        self.cachedata[0][k] = v
+        self.cachedata_extras[0][k] = v
+
+    def merge_data(self, source, dest):
+        for h in source[0]:
+            dest[0][h] = source[0][h]

bitbake/lib/bb/codeparser.py

@@ -62,6 +62,7 @@ def check_indent(codestr):
 modulecode_deps = {}
 
 def add_module_functions(fn, functions, namespace):
+    import os
     fstat = os.stat(fn)
     fixedhash = fn + ":" + str(fstat.st_size) +  ":" + str(fstat.st_mtime)
     for f in functions:
@@ -71,7 +72,20 @@ def add_module_functions(fn, functions, namespace):
             parser.parse_python(None, filename=fn, lineno=1, fixedhash=fixedhash+f)
             #bb.warn("Cached %s" % f)
         except KeyError:
-            lines, lineno = inspect.getsourcelines(functions[f])
+            try:
+                targetfn = inspect.getsourcefile(functions[f])
+            except TypeError:
+                # Builtin
+                continue
+            if fn != targetfn:
+                # Skip references to other modules outside this file
+                #bb.warn("Skipping %s" % name)
+                continue
+            try:
+                lines, lineno = inspect.getsourcelines(functions[f])
+            except TypeError:
+                # Builtin
+                continue
             src = "".join(lines)
             parser.parse_python(src, filename=fn, lineno=lineno, fixedhash=fixedhash+f)
             #bb.warn("Not cached %s" % f)
@@ -81,14 +95,17 @@ def add_module_functions(fn, functions, namespace):
             if e in functions:
                 execs.remove(e)
                 execs.add(namespace + "." + e)
-        modulecode_deps[name] = [parser.references.copy(), execs, parser.var_execs.copy(), parser.contains.copy()]
-        #bb.warn("%s: %s\nRefs:%s Execs: %s %s %s" % (name, src, parser.references, parser.execs, parser.var_execs, parser.contains))
+        visitorcode = None
+        if hasattr(functions[f], 'visitorcode'):
+            visitorcode = getattr(functions[f], "visitorcode")
+        modulecode_deps[name] = [parser.references.copy(), execs, parser.var_execs.copy(), parser.contains.copy(), parser.extra, visitorcode]
+        #bb.warn("%s: %s\nRefs:%s Execs: %s %s %s" % (name, fn, parser.references, parser.execs, parser.var_execs, parser.contains))
 
 def update_module_dependencies(d):
     for mod in modulecode_deps:
         excludes = set((d.getVarFlag(mod, "vardepsexclude") or "").split())
         if excludes:
-            modulecode_deps[mod] = [modulecode_deps[mod][0] - excludes, modulecode_deps[mod][1] - excludes, modulecode_deps[mod][2] - excludes, modulecode_deps[mod][3]]
+            modulecode_deps[mod] = [modulecode_deps[mod][0] - excludes, modulecode_deps[mod][1] - excludes, modulecode_deps[mod][2] - excludes, modulecode_deps[mod][3], modulecode_deps[mod][4], modulecode_deps[mod][5]]
 
 # A custom getstate/setstate using tuples is actually worth 15% cachesize by
 # avoiding duplication of the attribute names!
@@ -111,21 +128,22 @@ class SetCache(object):
 codecache = SetCache()
 
 class pythonCacheLine(object):
-    def __init__(self, refs, execs, contains):
+    def __init__(self, refs, execs, contains, extra):
         self.refs = codecache.internSet(refs)
         self.execs = codecache.internSet(execs)
         self.contains = {}
         for c in contains:
             self.contains[c] = codecache.internSet(contains[c])
+        self.extra = extra
 
     def __getstate__(self):
-        return (self.refs, self.execs, self.contains)
+        return (self.refs, self.execs, self.contains, self.extra)
 
     def __setstate__(self, state):
-        (refs, execs, contains) = state
-        self.__init__(refs, execs, contains)
+        (refs, execs, contains, extra) = state
+        self.__init__(refs, execs, contains, extra)
     def __hash__(self):
-        l = (hash(self.refs), hash(self.execs))
+        l = (hash(self.refs), hash(self.execs), hash(self.extra))
         for c in sorted(self.contains.keys()):
             l = l + (c, hash(self.contains[c]))
         return hash(l)
@@ -154,7 +172,7 @@ class CodeParserCache(MultiProcessCache):
     # so that an existing cache gets invalidated. Additionally you'll need
     # to increment __cache_version__ in cache.py in order to ensure that old
     # recipe caches don't trigger "Taskhash mismatch" errors.
-    CACHE_VERSION = 11
+    CACHE_VERSION = 14
 
     def __init__(self):
         MultiProcessCache.__init__(self)
@@ -168,8 +186,8 @@ class CodeParserCache(MultiProcessCache):
         self.pythoncachelines = {}
         self.shellcachelines = {}
 
-    def newPythonCacheLine(self, refs, execs, contains):
-        cacheline = pythonCacheLine(refs, execs, contains)
+    def newPythonCacheLine(self, refs, execs, contains, extra):
+        cacheline = pythonCacheLine(refs, execs, contains, extra)
         h = hash(cacheline)
         if h in self.pythoncachelines:
             return self.pythoncachelines[h]
@@ -254,20 +272,28 @@ class PythonParser():
 
     def visit_Call(self, node):
         name = self.called_node_name(node.func)
-        if name and (name.endswith(self.getvars) or name.endswith(self.getvarflags) or name in self.containsfuncs or name in self.containsanyfuncs):
-            if isinstance(node.args[0], ast.Str):
-                varname = node.args[0].s
-                if name in self.containsfuncs and isinstance(node.args[1], ast.Str):
+        if name and name in modulecode_deps and modulecode_deps[name][5]:
+            visitorcode = modulecode_deps[name][5]
+            contains, execs, warn = visitorcode(name, node.args)
+            for i in contains:
+                self.contains[i] = contains[i]
+            self.execs |= execs
+            if warn:
+                self.warn(node.func, warn)
+        elif name and (name.endswith(self.getvars) or name.endswith(self.getvarflags) or name in self.containsfuncs or name in self.containsanyfuncs):
+            if isinstance(node.args[0], ast.Constant) and isinstance(node.args[0].value, str):
+                varname = node.args[0].value
+                if name in self.containsfuncs and isinstance(node.args[1], ast.Constant):
                     if varname not in self.contains:
                         self.contains[varname] = set()
-                    self.contains[varname].add(node.args[1].s)
-                elif name in self.containsanyfuncs and isinstance(node.args[1], ast.Str):
+                    self.contains[varname].add(node.args[1].value)
+                elif name in self.containsanyfuncs and isinstance(node.args[1], ast.Constant):
                     if varname not in self.contains:
                         self.contains[varname] = set()
-                    self.contains[varname].update(node.args[1].s.split())
+                    self.contains[varname].update(node.args[1].value.split())
                 elif name.endswith(self.getvarflags):
-                    if isinstance(node.args[1], ast.Str):
-                        self.references.add('%s[%s]' % (varname, node.args[1].s))
+                    if isinstance(node.args[1], ast.Constant):
+                        self.references.add('%s[%s]' % (varname, node.args[1].value))
                     else:
                         self.warn(node.func, node.args[1])
                 else:
@@ -275,8 +301,8 @@ class PythonParser():
             else:
                 self.warn(node.func, node.args[0])
         elif name and name.endswith(".expand"):
-            if isinstance(node.args[0], ast.Str):
-                value = node.args[0].s
+            if isinstance(node.args[0], ast.Constant):
+                value = node.args[0].value
                 d = bb.data.init()
                 parser = d.expandWithRefs(value, self.name)
                 self.references |= parser.references
@@ -286,8 +312,8 @@ class PythonParser():
                         self.contains[varname] = set()
                     self.contains[varname] |= parser.contains[varname]
         elif name in self.execfuncs:
-            if isinstance(node.args[0], ast.Str):
-                self.var_execs.add(node.args[0].s)
+            if isinstance(node.args[0], ast.Constant):
+                self.var_execs.add(node.args[0].value)
             else:
                 self.warn(node.func, node.args[0])
         elif name and isinstance(node.func, (ast.Name, ast.Attribute)):
@@ -337,6 +363,7 @@ class PythonParser():
             self.contains = {}
             for i in codeparsercache.pythoncache[h].contains:
                 self.contains[i] = set(codeparsercache.pythoncache[h].contains[i])
+            self.extra = codeparsercache.pythoncache[h].extra
             return
 
         if h in codeparsercache.pythoncacheextras:
@@ -345,6 +372,7 @@ class PythonParser():
             self.contains = {}
             for i in codeparsercache.pythoncacheextras[h].contains:
                 self.contains[i] = set(codeparsercache.pythoncacheextras[h].contains[i])
+            self.extra = codeparsercache.pythoncacheextras[h].extra
             return
 
         if fixedhash and not node:
@@ -363,8 +391,11 @@ class PythonParser():
                 self.visit_Call(n)
 
         self.execs.update(self.var_execs)
+        self.extra = None
+        if fixedhash:
+            self.extra = bbhash(str(node))
 
-        codeparsercache.pythoncacheextras[h] = codeparsercache.newPythonCacheLine(self.references, self.execs, self.contains)
+        codeparsercache.pythoncacheextras[h] = codeparsercache.newPythonCacheLine(self.references, self.execs, self.contains, self.extra)
 
 class ShellParser():
     def __init__(self, name, log):
@@ -483,19 +514,34 @@ class ShellParser():
         """
 
         words = list(words)
-        for word in list(words):
+        for word in words:
             wtree = pyshlex.make_wordtree(word[1])
             for part in wtree:
                 if not isinstance(part, list):
                     continue
 
-                if part[0] in ('`', '$('):
-                    command = pyshlex.wordtree_as_string(part[1:-1])
-                    self._parse_shell(command)
+                candidates = [part]
 
-                    if word[0] in ("cmd_name", "cmd_word"):
-                        if word in words:
-                            words.remove(word)
+                # If command is of type:
+                #
+                #   var="... $(cmd [...]) ..."
+                #
+                # Then iterate on what's between the quotes and if we find a
+                # list, make that what we check for below.
+                if len(part) >= 3 and part[0] == '"':
+                    for p in part[1:-1]:
+                        if isinstance(p, list):
+                            candidates.append(p)
+
+                for candidate in candidates:
+                    if len(candidate) >= 2:
+                        if candidate[0] in ('`', '$('):
+                            command = pyshlex.wordtree_as_string(candidate[1:-1])
+                            self._parse_shell(command)
+
+                            if word[0] in ("cmd_name", "cmd_word"):
+                                if word in words:
+                                    words.remove(word)
 
         usetoken = False
         for word in words:

bitbake/lib/bb/command.py

@@ -24,6 +24,7 @@ import io
 import bb.event
 import bb.cooker
 import bb.remotedata
+import bb.parse
 
 class DataStoreConnectionHandle(object):
     def __init__(self, dsindex=0):
@@ -65,7 +66,7 @@ class Command:
         command = commandline.pop(0)
 
         # Ensure cooker is ready for commands
-        if command != "updateConfig" and command != "setFeatures":
+        if command not in ["updateConfig", "setFeatures", "ping"]:
             try:
                 self.cooker.init_configdata()
                 if not self.remotedatastores:
@@ -85,7 +86,6 @@ class Command:
                 if not hasattr(command_method, 'readonly') or not getattr(command_method, 'readonly'):
                     return None, "Not able to execute not readonly commands in readonly mode"
             try:
-                self.cooker.process_inotify_updates_apply()
                 if getattr(command_method, 'needconfig', True):
                     self.cooker.updateCacheSync()
                 result = command_method(self, commandline)
@@ -109,8 +109,7 @@ class Command:
 
     def runAsyncCommand(self, _, process_server, halt):
         try:
-            self.cooker.process_inotify_updates_apply()
-            if self.cooker.state in (bb.cooker.state.error, bb.cooker.state.shutdown, bb.cooker.state.forceshutdown):
+            if self.cooker.state in (bb.cooker.State.ERROR, bb.cooker.State.SHUTDOWN, bb.cooker.State.FORCE_SHUTDOWN):
                 # updateCache will trigger a shutdown of the parser
                 # and then raise BBHandledException triggering an exit
                 self.cooker.updateCache()
@@ -120,7 +119,7 @@ class Command:
                 (command, options) = cmd
                 commandmethod = getattr(CommandsAsync, command)
                 needcache = getattr( commandmethod, "needcache" )
-                if needcache and self.cooker.state != bb.cooker.state.running:
+                if needcache and self.cooker.state != bb.cooker.State.RUNNING:
                     self.cooker.updateCache()
                     return True
                 else:
@@ -169,6 +168,8 @@ class CommandsSync:
         Allow a UI to check the server is still alive
         """
         return "Still alive!"
+    ping.needconfig = False
+    ping.readonly = True
 
     def stateShutdown(self, command, params):
         """
@@ -307,6 +308,11 @@ class CommandsSync:
         return ret
     getLayerPriorities.readonly = True
 
+    def revalidateCaches(self, command, params):
+        """Called by UI clients when metadata may have changed"""
+        command.cooker.revalidateCaches()
+    revalidateCaches.needconfig = False
+
     def getRecipes(self, command, params):
         try:
             mc = params[0]
@@ -415,15 +421,30 @@ class CommandsSync:
         return command.cooker.recipecaches[mc].pkg_dp
     getDefaultPreference.readonly = True
 
+
     def getSkippedRecipes(self, command, params):
+        """
+        Get the map of skipped recipes for the specified multiconfig/mc name (`params[0]`).
+
+        Invoked by `bb.tinfoil.Tinfoil.get_skipped_recipes`
+
+        :param command: Internally used parameter.
+        :param params: Parameter array. params[0] is multiconfig/mc name. If not given, then default mc '' is assumed.
+        :return: Dict whose keys are virtualfns and values are `bb.cooker.SkippedPackage`
+        """
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+
         # Return list sorted by reverse priority order
         import bb.cache
         def sortkey(x):
             vfn, _ = x
-            realfn, _, mc = bb.cache.virtualfn2realfn(vfn)
-            return (-command.cooker.collections[mc].calc_bbfile_priority(realfn)[0], vfn)
+            realfn, _, item_mc = bb.cache.virtualfn2realfn(vfn)
+            return -command.cooker.collections[item_mc].calc_bbfile_priority(realfn)[0], vfn
 
-        skipdict = OrderedDict(sorted(command.cooker.skiplist.items(), key=sortkey))
+        skipdict = OrderedDict(sorted(command.cooker.skiplist_by_mc[mc].items(), key=sortkey))
         return list(skipdict.items())
     getSkippedRecipes.readonly = True
 
@@ -545,8 +566,8 @@ class CommandsSync:
         and return a datastore object representing the environment
         for the recipe.
         """
-        fn = params[0]
-        mc = bb.runqueue.mc_from_tid(fn)
+        virtualfn = params[0]
+        (fn, cls, mc) = bb.cache.virtualfn2realfn(virtualfn)
         appends = params[1]
         appendlist = params[2]
         if len(params) > 3:
@@ -561,6 +582,7 @@ class CommandsSync:
                 appendfiles = command.cooker.collections[mc].get_file_appends(fn)
         else:
             appendfiles = []
+        layername = command.cooker.collections[mc].calc_bbfile_priority(fn)[2]
         # We are calling bb.cache locally here rather than on the server,
         # but that's OK because it doesn't actually need anything from
         # the server barring the global datastore (which we have a remote
@@ -568,14 +590,21 @@ class CommandsSync:
         if config_data:
             # We have to use a different function here if we're passing in a datastore
             # NOTE: we took a copy above, so we don't do it here again
-            envdata = command.cooker.databuilder._parse_recipe(config_data, fn, appendfiles, mc)['']
+            envdata = command.cooker.databuilder._parse_recipe(config_data, fn, appendfiles, mc, layername)[cls]
         else:
             # Use the standard path
-            envdata = command.cooker.databuilder.parseRecipe(fn, appendfiles)
+            envdata = command.cooker.databuilder.parseRecipe(virtualfn, appendfiles, layername)
         idx = command.remotedatastores.store(envdata)
         return DataStoreConnectionHandle(idx)
     parseRecipeFile.readonly = True
 
+    def finalizeData(self, command, params):
+        newdata = command.cooker.data.createCopy()
+        bb.data.expandKeys(newdata)
+        bb.parse.ast.runAnonFuncs(newdata)
+        idx = command.remotedatastores.store(newdata)
+        return DataStoreConnectionHandle(idx)
+
 class CommandsAsync:
     """
     A class of asynchronous commands
@@ -771,7 +800,14 @@ class CommandsAsync:
         (mc, pn) = bb.runqueue.split_mc(params[0])
         taskname = params[1]
         sigs = params[2]
+        bb.siggen.check_siggen_version(bb.siggen)
         res = bb.siggen.find_siginfo(pn, taskname, sigs, command.cooker.databuilder.mcdata[mc])
         bb.event.fire(bb.event.FindSigInfoResult(res), command.cooker.databuilder.mcdata[mc])
         command.finishAsyncCommand()
     findSigInfo.needcache = False
+
+    def getTaskSignatures(self, command, params):
+        res = command.cooker.getTaskSignatures(params[0], params[1])
+        bb.event.fire(bb.event.GetTaskSignatureResult(res), command.cooker.data)
+        command.finishAsyncCommand()
+    getTaskSignatures.needcache = True

bitbake/lib/bb/compress/lz4.py

@@ -13,7 +13,7 @@ def open(*args, **kwargs):
 
 class LZ4File(bb.compress._pipecompress.PipeFile):
     def get_compress(self):
-        return ["lz4c", "-z", "-c"]
+        return ["lz4", "-z", "-c"]
 
     def get_decompress(self):
-        return ["lz4c", "-d", "-c"]
+        return ["lz4", "-d", "-c"]

bitbake/lib/bb/cooker.py

@@ -8,7 +8,7 @@
 #
 # SPDX-License-Identifier: GPL-2.0-only
 #
-
+import enum
 import sys, os, glob, os.path, re, time
 import itertools
 import logging
@@ -17,12 +17,11 @@ import threading
 from io import StringIO, UnsupportedOperation
 from contextlib import closing
 from collections import defaultdict, namedtuple
-import bb, bb.exceptions, bb.command
+import bb, bb.command
 from bb import utils, data, parse, event, cache, providers, taskdata, runqueue, build
 import queue
 import signal
 import prserv.serv
-import pyinotify
 import json
 import pickle
 import codecs
@@ -49,16 +48,15 @@ class CollectionError(bb.BBHandledException):
     Exception raised when layer configuration is incorrect
     """
 
-class state:
-    initial, parsing, running, shutdown, forceshutdown, stopped, error = list(range(7))
 
-    @classmethod
-    def get_name(cls, code):
-        for name in dir(cls):
-            value = getattr(cls, name)
-            if type(value) == type(cls.initial) and value == code:
-                return name
-        raise ValueError("Invalid status code: %s" % code)
+class State(enum.Enum):
+    INITIAL = 0,
+    PARSING = 1,
+    RUNNING = 2,
+    SHUTDOWN = 3,
+    FORCE_SHUTDOWN = 4,
+    STOPPED = 5,
+    ERROR = 6
 
 
 class SkippedPackage:
@@ -103,12 +101,15 @@ class CookerFeatures(object):
 
 class EventWriter:
     def __init__(self, cooker, eventfile):
-        self.file_inited = None
         self.cooker = cooker
         self.eventfile = eventfile
         self.event_queue = []
 
-    def write_event(self, event):
+    def write_variables(self):
+        with open(self.eventfile, "a") as f:
+            f.write("%s\n" % json.dumps({ "allvariables" : self.cooker.getAllKeysWithFlags(["doc", "func"])}))
+
+    def send(self, event):
         with open(self.eventfile, "a") as f:
             try:
                 str_event = codecs.encode(pickle.dumps(event), 'base64').decode('utf-8')
@@ -118,28 +119,6 @@ class EventWriter:
                 import traceback
                 print(err, traceback.format_exc())
 
-    def send(self, event):
-        if self.file_inited:
-            # we have the file, just write the event
-            self.write_event(event)
-        else:
-            # init on bb.event.BuildStarted
-            name = "%s.%s" % (event.__module__, event.__class__.__name__)
-            if name in ("bb.event.BuildStarted", "bb.cooker.CookerExit"):
-                with open(self.eventfile, "w") as f:
-                    f.write("%s\n" % json.dumps({ "allvariables" : self.cooker.getAllKeysWithFlags(["doc", "func"])}))
-
-                self.file_inited = True
-
-                # write pending events
-                for evt in self.event_queue:
-                    self.write_event(evt)
-
-                # also write the current event
-                self.write_event(event)
-            else:
-                # queue all events until the file is inited
-                self.event_queue.append(event)
 
 #============================================================================#
 # BBCooker
@@ -151,8 +130,11 @@ class BBCooker:
 
     def __init__(self, featureSet=None, server=None):
         self.recipecaches = None
+        self.baseconfig_valid = False
+        self.parsecache_valid = False
         self.eventlog = None
-        self.skiplist = {}
+        # The skiplists, one per multiconfig
+        self.skiplist_by_mc = defaultdict(dict)
         self.featureset = CookerFeatures()
         if featureSet:
             for f in featureSet:
@@ -171,17 +153,9 @@ class BBCooker:
             self.waitIdle = server.wait_for_idle
 
         bb.debug(1, "BBCooker starting %s" % time.time())
-        sys.stdout.flush()
 
-        self.configwatcher = None
-        self.confignotifier = None
-
-        self.watchmask = pyinotify.IN_CLOSE_WRITE | pyinotify.IN_CREATE | pyinotify.IN_DELETE | \
-                         pyinotify.IN_DELETE_SELF | pyinotify.IN_MODIFY | pyinotify.IN_MOVE_SELF | \
-                         pyinotify.IN_MOVED_FROM | pyinotify.IN_MOVED_TO
-
-        self.watcher = None
-        self.notifier = None
+        self.configwatched = {}
+        self.parsewatched = {}
 
         # If being called by something like tinfoil, we need to clean cached data
         # which may now be invalid
@@ -192,8 +166,6 @@ class BBCooker:
         self.hashserv = None
         self.hashservaddr = None
 
-        self.inotify_modified_files = []
-
         # TOSTOP must not be set or our children will hang when they output
         try:
             fd = sys.stdout.fileno()
@@ -208,7 +180,7 @@ class BBCooker:
             pass
 
         self.command = bb.command.Command(self, self.process_server)
-        self.state = state.initial
+        self.state = State.INITIAL
 
         self.parser = None
 
@@ -217,158 +189,59 @@ class BBCooker:
         signal.signal(signal.SIGHUP, self.sigterm_exception)
 
         bb.debug(1, "BBCooker startup complete %s" % time.time())
-        sys.stdout.flush()
-
-        self.inotify_threadlock = threading.Lock()
 
     def init_configdata(self):
         if not hasattr(self, "data"):
             self.initConfigurationData()
             bb.debug(1, "BBCooker parsed base configuration %s" % time.time())
-            sys.stdout.flush()
             self.handlePRServ()
 
-    def setupConfigWatcher(self):
-        with bb.utils.lock_timeout(self.inotify_threadlock):
-            if self.configwatcher:
-                self.configwatcher.close()
-                self.confignotifier = None
-                self.configwatcher = None
-            self.configwatcher = pyinotify.WatchManager()
-            self.configwatcher.bbseen = set()
-            self.configwatcher.bbwatchedfiles = set()
-            self.confignotifier = pyinotify.Notifier(self.configwatcher, self.config_notifications)
+    def _baseconfig_set(self, value):
+        if value and not self.baseconfig_valid:
+            bb.server.process.serverlog("Base config valid")
+        elif not value and self.baseconfig_valid:
+            bb.server.process.serverlog("Base config invalidated")
+        self.baseconfig_valid = value
 
-    def setupParserWatcher(self):
-        with bb.utils.lock_timeout(self.inotify_threadlock):
-            if self.watcher:
-                self.watcher.close()
-                self.notifier = None
-                self.watcher = None
-            self.watcher = pyinotify.WatchManager()
-            self.watcher.bbseen = set()
-            self.watcher.bbwatchedfiles = set()
-            self.notifier = pyinotify.Notifier(self.watcher, self.notifications)
+    def _parsecache_set(self, value):
+        if value and not self.parsecache_valid:
+            bb.server.process.serverlog("Parse cache valid")
+        elif not value and self.parsecache_valid:
+            bb.server.process.serverlog("Parse cache invalidated")
+        self.parsecache_valid = value
 
-    def process_inotify_updates(self):
-        with bb.utils.lock_timeout(self.inotify_threadlock):
-            for n in [self.confignotifier, self.notifier]:
-                if n and n.check_events(timeout=0):
-                    # read notified events and enqueue them
-                    n.read_events()
+    def add_filewatch(self, deps, configwatcher=False):
+        if configwatcher:
+            watcher = self.configwatched
+        else:
+            watcher = self.parsewatched
 
-    def process_inotify_updates_apply(self):
-        with bb.utils.lock_timeout(self.inotify_threadlock):
-            for n in [self.confignotifier, self.notifier]:
-                if n and n.check_events(timeout=0):
-                    n.read_events()
-                    n.process_events()
-
-    def config_notifications(self, event):
-        if event.maskname == "IN_Q_OVERFLOW":
-            bb.warn("inotify event queue overflowed, invalidating caches.")
-            self.parsecache_valid = False
-            self.baseconfig_valid = False
-            bb.parse.clear_cache()
-            return
-        if not event.pathname in self.configwatcher.bbwatchedfiles:
-            return
-        if "IN_ISDIR" in event.maskname:
-            if "IN_CREATE" in event.maskname or "IN_DELETE" in event.maskname:
-                if event.pathname in self.configwatcher.bbseen:
-                    self.configwatcher.bbseen.remove(event.pathname)
-                # Could remove all entries starting with the directory but for now...
-                bb.parse.clear_cache()
-        if not event.pathname in self.inotify_modified_files:
-            self.inotify_modified_files.append(event.pathname)
-        self.baseconfig_valid = False
-
-    def notifications(self, event):
-        if event.maskname == "IN_Q_OVERFLOW":
-            bb.warn("inotify event queue overflowed, invalidating caches.")
-            self.parsecache_valid = False
-            bb.parse.clear_cache()
-            return
-        if event.pathname.endswith("bitbake-cookerdaemon.log") \
-                or event.pathname.endswith("bitbake.lock"):
-            return
-        if "IN_ISDIR" in event.maskname:
-            if "IN_CREATE" in event.maskname or "IN_DELETE" in event.maskname:
-                if event.pathname in self.watcher.bbseen:
-                    self.watcher.bbseen.remove(event.pathname)
-                # Could remove all entries starting with the directory but for now...
-                bb.parse.clear_cache()
-        if not event.pathname in self.inotify_modified_files:
-            self.inotify_modified_files.append(event.pathname)
-        self.parsecache_valid = False
-
-    def add_filewatch(self, deps, watcher=None, dirs=False):
-        if not watcher:
-            watcher = self.watcher
         for i in deps:
-            watcher.bbwatchedfiles.add(i[0])
-            if dirs:
-                f = i[0]
-            else:
-                f = os.path.dirname(i[0])
-            if f in watcher.bbseen:
-                continue
-            watcher.bbseen.add(f)
-            watchtarget = None
-            while True:
-                # We try and add watches for files that don't exist but if they did, would influence
-                # the parser. The parent directory of these files may not exist, in which case we need
-                # to watch any parent that does exist for changes.
-                try:
-                    watcher.add_watch(f, self.watchmask, quiet=False)
-                    if watchtarget:
-                        watcher.bbwatchedfiles.add(watchtarget)
-                    break
-                except pyinotify.WatchManagerError as e:
-                    if 'ENOENT' in str(e):
-                        watchtarget = f
-                        f = os.path.dirname(f)
-                        if f in watcher.bbseen:
-                            break
-                        watcher.bbseen.add(f)
-                        continue
-                    if 'ENOSPC' in str(e):
-                        providerlog.error("No space left on device or exceeds fs.inotify.max_user_watches?")
-                        providerlog.error("To check max_user_watches: sysctl -n fs.inotify.max_user_watches.")
-                        providerlog.error("To modify max_user_watches: sysctl -n -w fs.inotify.max_user_watches=<value>.")
-                        providerlog.error("Root privilege is required to modify max_user_watches.")
-                    raise
-
-    def handle_inotify_updates(self):
-        # reload files for which we got notifications
-        for p in self.inotify_modified_files:
-            bb.parse.update_cache(p)
-            if p in bb.parse.BBHandler.cached_statements:
-                del bb.parse.BBHandler.cached_statements[p]
-        self.inotify_modified_files = []
+            f = i[0]
+            mtime = i[1]
+            watcher[f] = mtime
 
     def sigterm_exception(self, signum, stackframe):
         if signum == signal.SIGTERM:
             bb.warn("Cooker received SIGTERM, shutting down...")
         elif signum == signal.SIGHUP:
             bb.warn("Cooker received SIGHUP, shutting down...")
-        self.state = state.forceshutdown
+        self.state = State.FORCE_SHUTDOWN
         bb.event._should_exit.set()
 
     def setFeatures(self, features):
         # we only accept a new feature set if we're in state initial, so we can reset without problems
-        if not self.state in [state.initial, state.shutdown, state.forceshutdown, state.stopped, state.error]:
+        if not self.state in [State.INITIAL, State.SHUTDOWN, State.FORCE_SHUTDOWN, State.STOPPED, State.ERROR]:
             raise Exception("Illegal state for feature set change")
         original_featureset = list(self.featureset)
         for feature in features:
             self.featureset.setFeature(feature)
         bb.debug(1, "Features set %s (was %s)" % (original_featureset, list(self.featureset)))
-        if (original_featureset != list(self.featureset)) and self.state != state.error and hasattr(self, "data"):
+        if (original_featureset != list(self.featureset)) and self.state != State.ERROR and hasattr(self, "data"):
             self.reset()
 
     def initConfigurationData(self):
-
-        self.state = state.initial
+        self.state = State.INITIAL
         self.caches_array = []
 
         sys.path = self.orig_syspath.copy()
@@ -376,8 +249,7 @@ class BBCooker:
             if mod not in self.orig_sysmodules:
                 del sys.modules[mod]
 
-        self.handle_inotify_updates()
-        self.setupConfigWatcher()
+        self.configwatched = {}
 
         # Need to preserve BB_CONSOLELOG over resets
         consolelog = None
@@ -408,9 +280,12 @@ class BBCooker:
         self.databuilder = bb.cookerdata.CookerDataBuilder(self.configuration, False)
         self.databuilder.parseBaseConfiguration()
         self.data = self.databuilder.data
-        self.data_hash = self.databuilder.data_hash
         self.extraconfigdata = {}
 
+        eventlog = self.data.getVar("BB_DEFAULT_EVENTLOG")
+        if not self.configuration.writeeventlog and eventlog:
+            self.setupEventLog(eventlog)
+
         if consolelog:
             self.data.setVar("BB_CONSOLELOG", consolelog)
 
@@ -420,10 +295,10 @@ class BBCooker:
             self.disableDataTracking()
 
         for mc in self.databuilder.mcdata.values():
-            self.add_filewatch(mc.getVar("__base_depends", False), self.configwatcher)
+            self.add_filewatch(mc.getVar("__base_depends", False), configwatcher=True)
 
-        self.baseconfig_valid = True
-        self.parsecache_valid = False
+        self._baseconfig_set(True)
+        self._parsecache_set(False)
 
     def handlePRServ(self):
         # Setup a PR Server based on the new configuration
@@ -438,13 +313,19 @@ class BBCooker:
                 dbfile = (self.data.getVar("PERSISTENT_DIR") or self.data.getVar("CACHE")) + "/hashserv.db"
                 upstream = self.data.getVar("BB_HASHSERVE_UPSTREAM") or None
                 if upstream:
-                    import socket
                     try:
-                        sock = socket.create_connection(upstream.split(":"), 5)
-                        sock.close()
-                    except socket.error as e:
-                        bb.warn("BB_HASHSERVE_UPSTREAM is not valid, unable to connect hash equivalence server at '%s': %s"
+                        with hashserv.create_client(upstream) as client:
+                            client.ping()
+                    except ImportError as e:
+                        bb.fatal(""""Unable to use hash equivalence server at '%s' due to missing or incorrect python module:
+%s
+Please install the needed module on the build host, or use an environment containing it (e.g a pip venv or OpenEmbedded's buildtools tarball).
+You can also remove the BB_HASHSERVE_UPSTREAM setting, but this may result in significantly longer build times as bitbake will be unable to reuse prebuilt sstate artefacts."""
                                  % (upstream, repr(e)))
+                    except ConnectionError as e:
+                        bb.warn("Unable to connect to hash equivalence server at '%s', please correct or remove BB_HASHSERVE_UPSTREAM:\n%s"
+                                 % (upstream, repr(e)))
+                        upstream = None
 
                 self.hashservaddr = "unix://%s/hashserve.sock" % self.data.getVar("TOPDIR")
                 self.hashserv = hashserv.create_server(
@@ -453,7 +334,7 @@ class BBCooker:
                     sync=False,
                     upstream=upstream,
                 )
-                self.hashserv.serve_as_process()
+                self.hashserv.serve_as_process(log_level=logging.WARNING)
             for mc in self.databuilder.mcdata:
                 self.databuilder.mcorigdata[mc].setVar("BB_HASHSERVE", self.hashservaddr)
                 self.databuilder.mcdata[mc].setVar("BB_HASHSERVE", self.hashservaddr)
@@ -470,6 +351,34 @@ class BBCooker:
         if hasattr(self, "data"):
             self.data.disableTracking()
 
+    def revalidateCaches(self):
+        bb.parse.clear_cache()
+
+        clean = True
+        for f in self.configwatched:
+            if not bb.parse.check_mtime(f, self.configwatched[f]):
+                bb.server.process.serverlog("Found %s changed, invalid cache" % f)
+                self._baseconfig_set(False)
+                self._parsecache_set(False)
+                clean = False
+                break
+
+        if clean:
+            for f in self.parsewatched:
+                if not bb.parse.check_mtime(f, self.parsewatched[f]):
+                    bb.server.process.serverlog("Found %s changed, invalid cache" % f)
+                    self._parsecache_set(False)
+                    clean = False
+                    break
+
+        if not clean:
+            bb.parse.BBHandler.cached_statements = {}
+
+        # If writes were made to any of the data stores, we need to recalculate the data
+        # store cache
+        if hasattr(self, "databuilder"):
+            self.databuilder.calc_datastore_hashes()
+
     def parseConfiguration(self):
         self.updateCacheSync()
 
@@ -488,8 +397,24 @@ class BBCooker:
             self.recipecaches[mc] = bb.cache.CacheData(self.caches_array)
 
         self.handleCollections(self.data.getVar("BBFILE_COLLECTIONS"))
+        self.collections = {}
+        for mc in self.multiconfigs:
+            self.collections[mc] = CookerCollectFiles(self.bbfile_config_priorities, mc)
 
-        self.parsecache_valid = False
+        self._parsecache_set(False)
+
+    def setupEventLog(self, eventlog):
+        if self.eventlog and self.eventlog[0] != eventlog:
+            bb.event.unregister_UIHhandler(self.eventlog[1])
+            self.eventlog = None
+        if not self.eventlog or self.eventlog[0] != eventlog:
+            # we log all events to a file if so directed
+            # register the log file writer as UI Handler
+            if not os.path.exists(os.path.dirname(eventlog)):
+                bb.utils.mkdirhier(os.path.dirname(eventlog))
+            writer = EventWriter(self, eventlog)
+            EventLogWriteHandler = namedtuple('EventLogWriteHandler', ['event'])
+            self.eventlog = (eventlog, bb.event.register_UIHhandler(EventLogWriteHandler(writer)), writer)
 
     def updateConfigOpts(self, options, environment, cmdline):
         self.ui_cmdline = cmdline
@@ -510,14 +435,7 @@ class BBCooker:
                 setattr(self.configuration, o, options[o])
 
         if self.configuration.writeeventlog:
-            if self.eventlog and self.eventlog[0] != self.configuration.writeeventlog:
-                bb.event.unregister_UIHhandler(self.eventlog[1])
-            if not self.eventlog or self.eventlog[0] != self.configuration.writeeventlog:
-                # we log all events to a file if so directed
-                # register the log file writer as UI Handler
-                writer = EventWriter(self, self.configuration.writeeventlog)
-                EventLogWriteHandler = namedtuple('EventLogWriteHandler', ['event'])
-                self.eventlog = (self.configuration.writeeventlog, bb.event.register_UIHhandler(EventLogWriteHandler(writer)))
+            self.setupEventLog(self.configuration.writeeventlog)
 
         bb.msg.loggerDefaultLogLevel = self.configuration.default_loglevel
         bb.msg.loggerDefaultDomains = self.configuration.debug_domains
@@ -547,6 +465,7 @@ class BBCooker:
         # Now update all the variables not in the datastore to match
         self.configuration.env = environment
 
+        self.revalidateCaches()
         if not clean:
             logger.debug("Base environment change, triggering reparse")
             self.reset()
@@ -624,13 +543,14 @@ class BBCooker:
 
         if fn:
             try:
-                envdata = self.databuilder.parseRecipe(fn, self.collections[mc].get_file_appends(fn))
+                layername = self.collections[mc].calc_bbfile_priority(fn)[2]
+                envdata = self.databuilder.parseRecipe(fn, self.collections[mc].get_file_appends(fn), layername)
             except Exception as e:
                 parselog.exception("Unable to read %s", fn)
                 raise
         else:
             if not mc in self.databuilder.mcdata:
-                bb.fatal('Not multiconfig named "%s" found' % mc)
+                bb.fatal('No multiconfig named "%s" found' % mc)
             envdata = self.databuilder.mcdata[mc]
             data.expandKeys(envdata)
             parse.ast.runAnonFuncs(envdata)
@@ -701,8 +621,8 @@ class BBCooker:
         localdata = {}
 
         for mc in self.multiconfigs:
-            taskdata[mc] = bb.taskdata.TaskData(halt, skiplist=self.skiplist, allowincomplete=allowincomplete)
-            localdata[mc] = data.createCopy(self.databuilder.mcdata[mc])
+            taskdata[mc] = bb.taskdata.TaskData(halt, skiplist=self.skiplist_by_mc[mc], allowincomplete=allowincomplete)
+            localdata[mc] = bb.data.createCopy(self.databuilder.mcdata[mc])
             bb.data.expandKeys(localdata[mc])
 
         current = 0
@@ -769,14 +689,14 @@ class BBCooker:
         bb.event.fire(bb.event.TreeDataPreparationCompleted(len(fulltargetlist)), self.data)
         return taskdata, runlist
 
-    def prepareTreeData(self, pkgs_to_build, task):
+    def prepareTreeData(self, pkgs_to_build, task, halt=False):
         """
         Prepare a runqueue and taskdata object for iteration over pkgs_to_build
         """
 
         # We set halt to False here to prevent unbuildable targets raising
         # an exception when we're just generating data
-        taskdata, runlist = self.buildTaskData(pkgs_to_build, task, False, allowincomplete=True)
+        taskdata, runlist = self.buildTaskData(pkgs_to_build, task, halt, allowincomplete=True)
 
         return runlist, taskdata
 
@@ -790,7 +710,7 @@ class BBCooker:
         if not task.startswith("do_"):
             task = "do_%s" % task
 
-        runlist, taskdata = self.prepareTreeData(pkgs_to_build, task)
+        runlist, taskdata = self.prepareTreeData(pkgs_to_build, task, halt=True)
         rq = bb.runqueue.RunQueue(self, self.data, self.recipecaches, taskdata, runlist)
         rq.rqdata.prepare()
         return self.buildDependTree(rq, taskdata)
@@ -985,10 +905,11 @@ class BBCooker:
 
         depgraph = self.generateTaskDepTreeData(pkgs_to_build, task)
 
-        with open('pn-buildlist', 'w') as f:
-            for pn in depgraph["pn"]:
-                f.write(pn + "\n")
-        logger.info("PN build list saved to 'pn-buildlist'")
+        pns = depgraph["pn"].keys()
+        if pns:
+            with open('pn-buildlist', 'w') as f:
+                f.write("%s\n" % "\n".join(sorted(pns)))
+            logger.info("PN build list saved to 'pn-buildlist'")
 
         # Remove old format output files to ensure no confusion with stale data
         try:
@@ -1022,7 +943,7 @@ class BBCooker:
         for mc in self.multiconfigs:
             # First get list of recipes, including skipped
             recipefns = list(self.recipecaches[mc].pkg_fn.keys())
-            recipefns.extend(self.skiplist.keys())
+            recipefns.extend(self.skiplist_by_mc[mc].keys())
 
             # Work out list of bbappends that have been applied
             applied_appends = []
@@ -1041,13 +962,7 @@ class BBCooker:
                                                                         '\n  '.join(appends_without_recipes[mc])))
 
         if msgs:
-            msg = "\n".join(msgs)
-            warn_only = self.databuilder.mcdata[mc].getVar("BB_DANGLINGAPPENDS_WARNONLY", \
-                False) or "no"
-            if warn_only.lower() in ("1", "yes", "true"):
-                bb.warn(msg)
-            else:
-                bb.fatal(msg)
+            bb.fatal("\n".join(msgs))
 
     def handlePrefProviders(self):
 
@@ -1362,8 +1277,8 @@ class BBCooker:
         if bf.startswith("/") or bf.startswith("../"):
             bf = os.path.abspath(bf)
 
-        self.collections = {mc: CookerCollectFiles(self.bbfile_config_priorities, mc)}
-        filelist, masked, searchdirs = self.collections[mc].collect_bbfiles(self.databuilder.mcdata[mc], self.databuilder.mcdata[mc])
+        collections = {mc: CookerCollectFiles(self.bbfile_config_priorities, mc)}
+        filelist, masked, searchdirs = collections[mc].collect_bbfiles(self.databuilder.mcdata[mc], self.databuilder.mcdata[mc])
         try:
             os.stat(bf)
             bf = os.path.abspath(bf)
@@ -1427,9 +1342,10 @@ class BBCooker:
         self.buildSetVars()
         self.reset_mtime_caches()
 
-        bb_caches = bb.cache.MulticonfigCache(self.databuilder, self.data_hash, self.caches_array)
+        bb_caches = bb.cache.MulticonfigCache(self.databuilder, self.databuilder.data_hash, self.caches_array)
 
-        infos = bb_caches[mc].parse(fn, self.collections[mc].get_file_appends(fn))
+        layername = self.collections[mc].calc_bbfile_priority(fn)[2]
+        infos = bb_caches[mc].parse(fn, self.collections[mc].get_file_appends(fn), layername)
         infos = dict(infos)
 
         fn = bb.cache.realfn2virtual(fn, cls, mc)
@@ -1474,6 +1390,8 @@ class BBCooker:
         buildname = self.databuilder.mcdata[mc].getVar("BUILDNAME")
         if fireevents:
             bb.event.fire(bb.event.BuildStarted(buildname, [item]), self.databuilder.mcdata[mc])
+            if self.eventlog:
+                self.eventlog[2].write_variables()
             bb.event.enable_heartbeat()
 
         # Execute the runqueue
@@ -1485,11 +1403,11 @@ class BBCooker:
 
             msg = None
             interrupted = 0
-            if halt or self.state == state.forceshutdown:
+            if halt or self.state == State.FORCE_SHUTDOWN:
                 rq.finish_runqueue(True)
                 msg = "Forced shutdown"
                 interrupted = 2
-            elif self.state == state.shutdown:
+            elif self.state == State.SHUTDOWN:
                 rq.finish_runqueue(False)
                 msg = "Stopped build"
                 interrupted = 1
@@ -1509,7 +1427,7 @@ class BBCooker:
                     bb.event.fire(bb.event.BuildCompleted(len(rq.rqdata.runtaskentries), buildname, item, failures, interrupted), self.databuilder.mcdata[mc])
                     bb.event.disable_heartbeat()
                 # We trashed self.recipecaches above
-                self.parsecache_valid = False
+                self._parsecache_set(False)
                 self.configuration.limited_deps = False
                 bb.parse.siggen.reset(self.data)
                 if quietlog:
@@ -1521,6 +1439,36 @@ class BBCooker:
 
         self.idleCallBackRegister(buildFileIdle, rq)
 
+    def getTaskSignatures(self, target, tasks):
+        sig = []
+        getAllTaskSignatures = False
+
+        if not tasks:
+            tasks = ["do_build"]
+            getAllTaskSignatures = True
+
+        for task in tasks:
+            taskdata, runlist = self.buildTaskData(target, task, self.configuration.halt)
+            rq = bb.runqueue.RunQueue(self, self.data, self.recipecaches, taskdata, runlist)
+            rq.rqdata.prepare()
+
+            for l in runlist:
+                mc, pn, taskname, fn = l
+
+                taskdep = rq.rqdata.dataCaches[mc].task_deps[fn]
+                for t in taskdep['tasks']:
+                    if t in taskdep['nostamp'] or "setscene" in t:
+                        continue
+                    tid = bb.runqueue.build_tid(mc, fn, t)
+
+                    if t in task or getAllTaskSignatures:
+                        try:
+                            sig.append([pn, t, rq.rqdata.get_task_unihash(tid)])
+                        except KeyError:
+                            sig.append(self.getTaskSignatures(target, [t])[0])
+
+        return sig
+
     def buildTargets(self, targets, task):
         """
         Attempt to build the targets specified
@@ -1529,12 +1477,12 @@ class BBCooker:
         def buildTargetsIdle(server, rq, halt):
             msg = None
             interrupted = 0
-            if halt or self.state == state.forceshutdown:
+            if halt or self.state == State.FORCE_SHUTDOWN:
                 bb.event._should_exit.set()
                 rq.finish_runqueue(True)
                 msg = "Forced shutdown"
                 interrupted = 2
-            elif self.state == state.shutdown:
+            elif self.state == State.SHUTDOWN:
                 rq.finish_runqueue(False)
                 msg = "Stopped build"
                 interrupted = 1
@@ -1586,6 +1534,8 @@ class BBCooker:
 
         for mc in self.multiconfigs:
             bb.event.fire(bb.event.BuildStarted(buildname, ntargets), self.databuilder.mcdata[mc])
+        if self.eventlog:
+            self.eventlog[2].write_variables()
         bb.event.enable_heartbeat()
 
         rq = bb.runqueue.RunQueue(self, self.data, self.recipecaches, taskdata, runlist)
@@ -1596,7 +1546,13 @@ class BBCooker:
 
 
     def getAllKeysWithFlags(self, flaglist):
+        def dummy_autorev(d):
+            return
+
         dump = {}
+        # Horrible but for now we need to avoid any sideeffects of autorev being called
+        saved = bb.fetch2.get_autorev
+        bb.fetch2.get_autorev = dummy_autorev
         for k in self.data.keys():
             try:
                 expand = True
@@ -1616,15 +1572,14 @@ class BBCooker:
                             dump[k][d] = None
             except Exception as e:
                 print(e)
+        bb.fetch2.get_autorev = saved
         return dump
 
 
     def updateCacheSync(self):
-        if self.state == state.running:
+        if self.state == State.RUNNING:
             return
 
-        self.handle_inotify_updates()
-
         if not self.baseconfig_valid:
             logger.debug("Reloading base configuration data")
             self.initConfigurationData()
@@ -1632,20 +1587,21 @@ class BBCooker:
 
     # This is called for all async commands when self.state != running
     def updateCache(self):
-        if self.state == state.running:
+        if self.state == State.RUNNING:
             return
 
-        if self.state in (state.shutdown, state.forceshutdown, state.error):
+        if self.state in (State.SHUTDOWN, State.FORCE_SHUTDOWN, State.ERROR):
             if hasattr(self.parser, 'shutdown'):
                 self.parser.shutdown(clean=False)
                 self.parser.final_cleanup()
             raise bb.BBHandledException()
 
-        if self.state != state.parsing:
+        if self.state != State.PARSING:
             self.updateCacheSync()
 
-        if self.state != state.parsing and not self.parsecache_valid:
-            self.setupParserWatcher()
+        if self.state != State.PARSING and not self.parsecache_valid:
+            bb.server.process.serverlog("Parsing started")
+            self.parsewatched = {}
 
             bb.parse.siggen.reset(self.data)
             self.parseConfiguration ()
@@ -1660,27 +1616,24 @@ class BBCooker:
                 for dep in self.configuration.extra_assume_provided:
                     self.recipecaches[mc].ignored_dependencies.add(dep)
 
-            self.collections = {}
-
             mcfilelist = {}
             total_masked = 0
             searchdirs = set()
             for mc in self.multiconfigs:
-                self.collections[mc] = CookerCollectFiles(self.bbfile_config_priorities, mc)
                 (filelist, masked, search) = self.collections[mc].collect_bbfiles(self.databuilder.mcdata[mc], self.databuilder.mcdata[mc])
 
                 mcfilelist[mc] = filelist
                 total_masked += masked
                 searchdirs |= set(search)
 
-            # Add inotify watches for directories searched for bb/bbappend files
+            # Add mtimes for directories searched for bb/bbappend files
             for dirent in searchdirs:
-                self.add_filewatch([[dirent]], dirs=True)
+                self.add_filewatch([(dirent, bb.parse.cached_mtime_noerror(dirent))])
 
             self.parser = CookerParser(self, mcfilelist, total_masked)
-            self.parsecache_valid = True
+            self._parsecache_set(True)
 
-        self.state = state.parsing
+        self.state = State.PARSING
 
         if not self.parser.parse_next():
             collectlog.debug("parsing complete")
@@ -1690,7 +1643,7 @@ class BBCooker:
             self.handlePrefProviders()
             for mc in self.multiconfigs:
                 self.recipecaches[mc].bbfile_priority = self.collections[mc].collection_priorities(self.recipecaches[mc].pkg_fn, self.parser.mcfilelist[mc], self.data)
-            self.state = state.running
+            self.state = State.RUNNING
 
             # Send an event listing all stamps reachable after parsing
             # which the metadata may use to clean up stale data
@@ -1763,10 +1716,10 @@ class BBCooker:
 
     def shutdown(self, force=False):
         if force:
-            self.state = state.forceshutdown
+            self.state = State.FORCE_SHUTDOWN
             bb.event._should_exit.set()
         else:
-            self.state = state.shutdown
+            self.state = State.SHUTDOWN
 
         if self.parser:
             self.parser.shutdown(clean=False)
@@ -1776,7 +1729,7 @@ class BBCooker:
         if hasattr(self.parser, 'shutdown'):
             self.parser.shutdown(clean=False)
             self.parser.final_cleanup()
-        self.state = state.initial
+        self.state = State.INITIAL
         bb.event._should_exit.clear()
 
     def reset(self):
@@ -1796,8 +1749,7 @@ class BBCooker:
            self.data = self.databuilder.data
         # In theory tinfoil could have modified the base data before parsing,
         # ideally need to track if anything did modify the datastore
-        self.parsecache_valid = False
-
+        self._parsecache_set(False)
 
 class CookerExit(bb.event.Event):
     """
@@ -1818,10 +1770,10 @@ class CookerCollectFiles(object):
         self.bbfile_config_priorities = sorted(priorities, key=lambda tup: tup[1], reverse=True)
 
     def calc_bbfile_priority(self, filename):
-        for _, _, regex, pri in self.bbfile_config_priorities:
+        for layername, _, regex, pri in self.bbfile_config_priorities:
             if regex.match(filename):
-                return pri, regex
-        return 0, None
+                return pri, regex, layername
+        return 0, None, None
 
     def get_bbfiles(self):
         """Get list of default .bb files by reading out the current directory"""
@@ -1840,7 +1792,7 @@ class CookerCollectFiles(object):
             for ignored in ('SCCS', 'CVS', '.svn'):
                 if ignored in dirs:
                     dirs.remove(ignored)
-            found += [os.path.join(dir, f) for f in files if (f.endswith(['.bb', '.bbappend']))]
+            found += [os.path.join(dir, f) for f in files if (f.endswith(('.bb', '.bbappend')))]
 
         return found
 
@@ -1863,9 +1815,9 @@ class CookerCollectFiles(object):
             collectlog.error("no recipe files to build, check your BBPATH and BBFILES?")
             bb.event.fire(CookerExit(), eventdata)
 
-        # We need to track where we look so that we can add inotify watches. There
-        # is no nice way to do this, this is horrid. We intercept the os.listdir()
-        # (or os.scandir() for python 3.6+) calls while we run glob().
+        # We need to track where we look so that we can know when the cache is invalid. There
+        # is no nice way to do this, this is horrid. We intercept the os.listdir() and os.scandir()
+        # calls while we run glob().
         origlistdir = os.listdir
         if hasattr(os, 'scandir'):
             origscandir = os.scandir
@@ -1994,7 +1946,7 @@ class CookerCollectFiles(object):
         # Calculate priorities for each file
         for p in pkgfns:
             realfn, cls, mc = bb.cache.virtualfn2realfn(p)
-            priorities[p], regex = self.calc_bbfile_priority(realfn)
+            priorities[p], regex, _ = self.calc_bbfile_priority(realfn)
             if regex in unmatched_regex:
                 matched_regex.add(regex)
                 unmatched_regex.remove(regex)
@@ -2131,7 +2083,7 @@ class Parser(multiprocessing.Process):
             self.results.close()
             self.results.join_thread()
 
-    def parse(self, mc, cache, filename, appends):
+    def parse(self, mc, cache, filename, appends, layername):
         try:
             origfilter = bb.event.LogHandler.filter
             # Record the filename we're parsing into any events generated
@@ -2145,11 +2097,10 @@ class Parser(multiprocessing.Process):
             bb.event.set_class_handlers(self.handlers.copy())
             bb.event.LogHandler.filter = parse_filter
 
-            return True, mc, cache.parse(filename, appends)
+            return True, mc, cache.parse(filename, appends, layername)
         except Exception as exc:
             tb = sys.exc_info()[2]
             exc.recipe = filename
-            exc.traceback = list(bb.exceptions.extract_traceback(tb, context=3))
             return True, None, exc
         # Need to turn BaseExceptions into Exceptions here so we gracefully shutdown
         # and for example a worker thread doesn't just exit on its own in response to
@@ -2164,7 +2115,7 @@ class CookerParser(object):
         self.mcfilelist = mcfilelist
         self.cooker = cooker
         self.cfgdata = cooker.data
-        self.cfghash = cooker.data_hash
+        self.cfghash = cooker.databuilder.data_hash
         self.cfgbuilder = cooker.databuilder
 
         # Accounting statistics
@@ -2185,10 +2136,11 @@ class CookerParser(object):
         for mc in self.cooker.multiconfigs:
             for filename in self.mcfilelist[mc]:
                 appends = self.cooker.collections[mc].get_file_appends(filename)
+                layername = self.cooker.collections[mc].calc_bbfile_priority(filename)[2]
                 if not self.bb_caches[mc].cacheValid(filename, appends):
-                    self.willparse.add((mc, self.bb_caches[mc], filename, appends))
+                    self.willparse.add((mc, self.bb_caches[mc], filename, appends, layername))
                 else:
-                    self.fromcache.add((mc, self.bb_caches[mc], filename, appends))
+                    self.fromcache.add((mc, self.bb_caches[mc], filename, appends, layername))
 
         self.total = len(self.fromcache) + len(self.willparse)
         self.toparse = len(self.willparse)
@@ -2275,9 +2227,8 @@ class CookerParser(object):
 
         for process in self.processes:
             process.join()
-            # Added in 3.7, cleans up zombies
-            if hasattr(process, "close"):
-                process.close()
+            # clean up zombies
+            process.close()
 
         bb.codeparser.parser_cache_save()
         bb.codeparser.parser_cache_savemerge()
@@ -2287,19 +2238,20 @@ class CookerParser(object):
             profiles = []
             for i in self.process_names:
                 logfile = "profile-parse-%s.log" % i
-                if os.path.exists(logfile):
+                if os.path.exists(logfile) and os.path.getsize(logfile):
                     profiles.append(logfile)
 
-            pout = "profile-parse.log.processed"
-            bb.utils.process_profilelog(profiles, pout = pout)
-            print("Processed parsing statistics saved to %s" % (pout))
+            if profiles:
+                pout = "profile-parse.log.processed"
+                bb.utils.process_profilelog(profiles, pout = pout)
+                print("Processed parsing statistics saved to %s" % (pout))
 
     def final_cleanup(self):
         if self.syncthread:
             self.syncthread.join()
 
     def load_cached(self):
-        for mc, cache, filename, appends in self.fromcache:
+        for mc, cache, filename, appends, layername in self.fromcache:
             infos = cache.loadCached(filename, appends)
             yield False, mc, infos
 
@@ -2349,8 +2301,12 @@ class CookerParser(object):
             return False
         except ParsingFailure as exc:
             self.error += 1
-            logger.error('Unable to parse %s: %s' %
-                     (exc.recipe, bb.exceptions.to_string(exc.realexception)))
+
+            exc_desc = str(exc)
+            if isinstance(exc, SystemExit) and not isinstance(exc.code, str):
+                exc_desc = 'Exited with "%d"' % exc.code
+
+            logger.error('Unable to parse %s: %s' % (exc.recipe, exc_desc))
             self.shutdown(clean=False)
             return False
         except bb.parse.ParseError as exc:
@@ -2359,20 +2315,33 @@ class CookerParser(object):
             self.shutdown(clean=False, eventmsg=str(exc))
             return False
         except bb.data_smart.ExpansionError as exc:
+            def skip_frames(f, fn_prefix):
+                while f and f.tb_frame.f_code.co_filename.startswith(fn_prefix):
+                    f = f.tb_next
+                return f
+
             self.error += 1
             bbdir = os.path.dirname(__file__) + os.sep
-            etype, value, _ = sys.exc_info()
-            tb = list(itertools.dropwhile(lambda e: e.filename.startswith(bbdir), exc.traceback))
+            etype, value, tb = sys.exc_info()
+
+            # Remove any frames where the code comes from bitbake. This
+            # prevents deep (and pretty useless) backtraces for expansion error
+            tb = skip_frames(tb, bbdir)
+            cur = tb
+            while cur:
+                cur.tb_next = skip_frames(cur.tb_next, bbdir)
+                cur = cur.tb_next
+
             logger.error('ExpansionError during parsing %s', value.recipe,
                          exc_info=(etype, value, tb))
             self.shutdown(clean=False)
             return False
         except Exception as exc:
             self.error += 1
-            etype, value, tb = sys.exc_info()
+            _, value, _ = sys.exc_info()
             if hasattr(value, "recipe"):
                 logger.error('Unable to parse %s' % value.recipe,
-                            exc_info=(etype, value, exc.traceback))
+                            exc_info=sys.exc_info())
             else:
                 # Most likely, an exception occurred during raising an exception
                 import traceback
@@ -2393,7 +2362,7 @@ class CookerParser(object):
         for virtualfn, info_array in result:
             if info_array[0].skipped:
                 self.skipped += 1
-                self.cooker.skiplist[virtualfn] = SkippedPackage(info_array[0])
+                self.cooker.skiplist_by_mc[mc][virtualfn] = SkippedPackage(info_array[0])
             self.bb_caches[mc].add_info(virtualfn, info_array, self.cooker.recipecaches[mc],
                                         parsed=parsed, watcher = self.cooker.add_filewatch)
         return True
@@ -2402,9 +2371,10 @@ class CookerParser(object):
         bb.cache.SiggenRecipeInfo.reset()
         to_reparse = set()
         for mc in self.cooker.multiconfigs:
-            to_reparse.add((mc, filename, self.cooker.collections[mc].get_file_appends(filename)))
+            layername = self.cooker.collections[mc].calc_bbfile_priority(filename)[2]
+            to_reparse.add((mc, filename, self.cooker.collections[mc].get_file_appends(filename), layername))
 
-        for mc, filename, appends in to_reparse:
-            infos = self.bb_caches[mc].parse(filename, appends)
+        for mc, filename, appends, layername in to_reparse:
+            infos = self.bb_caches[mc].parse(filename, appends, layername)
             for vfn, info_array in infos:
                 self.cooker.recipecaches[mc].add_from_recipeinfo(vfn, info_array)

bitbake/lib/bb/cookerdata.py

@@ -1,3 +1,4 @@
+
 #
 # Copyright (C) 2003, 2004  Chris Larson
 # Copyright (C) 2003, 2004  Phil Blundell
@@ -254,14 +255,21 @@ class CookerDataBuilder(object):
         self.data = self.basedata
         self.mcdata = {}
 
+    def calc_datastore_hashes(self):
+        data_hash = hashlib.sha256()
+        data_hash.update(self.data.get_hash().encode('utf-8'))
+        multiconfig = (self.data.getVar("BBMULTICONFIG") or "").split()
+        for config in multiconfig:
+            data_hash.update(self.mcdata[config].get_hash().encode('utf-8'))
+        self.data_hash = data_hash.hexdigest()
+
     def parseBaseConfiguration(self, worker=False):
         mcdata = {}
-        data_hash = hashlib.sha256()
         try:
             self.data = self.parseConfigurationFiles(self.prefiles, self.postfiles)
 
-            if self.data.getVar("BB_WORKERCONTEXT", False) is None and not worker:
-                bb.fetch.fetcher_init(self.data)
+            servercontext = self.data.getVar("BB_WORKERCONTEXT", False) is None and not worker
+            bb.fetch.fetcher_init(self.data, servercontext)
             bb.parse.init_parser(self.data)
 
             bb.event.fire(bb.event.ConfigParsed(), self.data)
@@ -279,7 +287,6 @@ class CookerDataBuilder(object):
                 bb.event.fire(bb.event.ConfigParsed(), self.data)
 
             bb.parse.init_parser(self.data)
-            data_hash.update(self.data.get_hash().encode('utf-8'))
             mcdata[''] = self.data
 
             multiconfig = (self.data.getVar("BBMULTICONFIG") or "").split()
@@ -289,11 +296,9 @@ class CookerDataBuilder(object):
                 parsed_mcdata = self.parseConfigurationFiles(self.prefiles, self.postfiles, config)
                 bb.event.fire(bb.event.ConfigParsed(), parsed_mcdata)
                 mcdata[config] = parsed_mcdata
-                data_hash.update(parsed_mcdata.get_hash().encode('utf-8'))
             if multiconfig:
                 bb.event.fire(bb.event.MultiConfigParsed(mcdata), self.data)
 
-            self.data_hash = data_hash.hexdigest()
         except bb.data_smart.ExpansionError as e:
             logger.error(str(e))
             raise bb.BBHandledException()
@@ -328,6 +333,7 @@ class CookerDataBuilder(object):
         for mc in mcdata:
             self.mcdata[mc] = bb.data.createCopy(mcdata[mc])
         self.data = self.mcdata['']
+        self.calc_datastore_hashes()
 
     def reset(self):
         # We may not have run parseBaseConfiguration() yet
@@ -340,7 +346,7 @@ class CookerDataBuilder(object):
     def _findLayerConf(self, data):
         return findConfigFile("bblayers.conf", data)
 
-    def parseConfigurationFiles(self, prefiles, postfiles, mc = "default"):
+    def parseConfigurationFiles(self, prefiles, postfiles, mc = ""):
         data = bb.data.createCopy(self.basedata)
         data.setVar("BB_CURRENT_MC", mc)
 
@@ -494,18 +500,19 @@ class CookerDataBuilder(object):
         return data
 
     @staticmethod
-    def _parse_recipe(bb_data, bbfile, appends, mc=''):
+    def _parse_recipe(bb_data, bbfile, appends, mc, layername):
         bb_data.setVar("__BBMULTICONFIG", mc)
+        bb_data.setVar("FILE_LAYERNAME", layername)
 
         bbfile_loc = os.path.abspath(os.path.dirname(bbfile))
         bb.parse.cached_mtime_noerror(bbfile_loc)
 
         if appends:
             bb_data.setVar('__BBAPPEND', " ".join(appends))
-        bb_data = bb.parse.handle(bbfile, bb_data)
-        return bb_data
 
-    def parseRecipeVariants(self, bbfile, appends, virtonly=False, mc=None):
+        return bb.parse.handle(bbfile, bb_data)
+
+    def parseRecipeVariants(self, bbfile, appends, virtonly=False, mc=None, layername=None):
         """
         Load and parse one .bb build file
         Return the data and whether parsing resulted in the file being skipped
@@ -515,32 +522,31 @@ class CookerDataBuilder(object):
             (bbfile, virtual, mc) = bb.cache.virtualfn2realfn(bbfile)
             bb_data = self.mcdata[mc].createCopy()
             bb_data.setVar("__ONLYFINALISE", virtual or "default")
-            datastores = self._parse_recipe(bb_data, bbfile, appends, mc)
-            return datastores
+            return self._parse_recipe(bb_data, bbfile, appends, mc, layername)
 
         if mc is not None:
             bb_data = self.mcdata[mc].createCopy()
-            return self._parse_recipe(bb_data, bbfile, appends, mc)
+            return self._parse_recipe(bb_data, bbfile, appends, mc, layername)
 
         bb_data = self.data.createCopy()
-        datastores = self._parse_recipe(bb_data, bbfile, appends)
+        datastores = self._parse_recipe(bb_data, bbfile, appends, '', layername)
 
         for mc in self.mcdata:
             if not mc:
                 continue
             bb_data = self.mcdata[mc].createCopy()
-            newstores = self._parse_recipe(bb_data, bbfile, appends, mc)
+            newstores = self._parse_recipe(bb_data, bbfile, appends, mc, layername)
             for ns in newstores:
                 datastores["mc:%s:%s" % (mc, ns)] = newstores[ns]
 
         return datastores
 
-    def parseRecipe(self, virtualfn, appends):
+    def parseRecipe(self, virtualfn, appends, layername):
         """
         Return a complete set of data for fn.
         To do this, we need to parse the file.
         """
         logger.debug("Parsing %s (full)" % virtualfn)
         (fn, virtual, mc) = bb.cache.virtualfn2realfn(virtualfn)
-        bb_data = self.parseRecipeVariants(virtualfn, appends, virtonly=True)
-        return bb_data[virtual]
+        datastores = self.parseRecipeVariants(virtualfn, appends, virtonly=True, layername=layername)
+        return datastores[virtual]

bitbake/lib/bb/data.py

@@ -285,6 +285,7 @@ def build_dependencies(key, keys, mod_funcs, shelldeps, varflagsexcl, ignored_va
             value += "\n_remove of %s" % r
             deps |= r2.references
             deps = deps | (keys & r2.execs)
+            value = handle_contains(value, r2.contains, exclusions, d)
         return value
 
     deps = set()
@@ -292,7 +293,7 @@ def build_dependencies(key, keys, mod_funcs, shelldeps, varflagsexcl, ignored_va
         if key in mod_funcs:
             exclusions = set()
             moddep = bb.codeparser.modulecode_deps[key]
-            value = handle_contains("", moddep[3], exclusions, d)
+            value = handle_contains(moddep[4], moddep[3], exclusions, d)
             return frozenset((moddep[0] | keys & moddep[1]) - ignored_vars), value
 
         if key[-1] == ']':

bitbake/lib/bb/data_smart.py

@@ -16,7 +16,10 @@ BitBake build tools.
 #
 # Based on functions from the base bb module, Copyright 2003 Holger Schurig
 
-import copy, re, sys, traceback
+import builtins
+import copy
+import re
+import sys
 from collections.abc import MutableMapping
 import logging
 import hashlib
@@ -28,7 +31,7 @@ logger = logging.getLogger("BitBake.Data")
 
 __setvar_keyword__ = [":append", ":prepend", ":remove"]
 __setvar_regexp__ = re.compile(r'(?P<base>.*?)(?P<keyword>:append|:prepend|:remove)(:(?P<add>[^A-Z]*))?$')
-__expand_var_regexp__ = re.compile(r"\${[a-zA-Z0-9\-_+./~:]+?}")
+__expand_var_regexp__ = re.compile(r"\${[a-zA-Z0-9\-_+./~:]+}")
 __expand_python_regexp__ = re.compile(r"\${@(?:{.*?}|.)+?}")
 __whitespace_split__ = re.compile(r'(\s)')
 __override_regexp__ = re.compile(r'[a-z0-9]+')
@@ -103,66 +106,68 @@ class VariableParse:
         self.contains = {}
 
     def var_sub(self, match):
-            key = match.group()[2:-1]
-            if self.varname and key:
-                if self.varname == key:
-                    raise Exception("variable %s references itself!" % self.varname)
-            var = self.d.getVarFlag(key, "_content")
-            self.references.add(key)
-            if var is not None:
-                return var
-            else:
-                return match.group()
+        key = match.group()[2:-1]
+        if self.varname and key:
+            if self.varname == key:
+                raise Exception("variable %s references itself!" % self.varname)
+        var = self.d.getVarFlag(key, "_content")
+        self.references.add(key)
+        if var is not None:
+            return var
+        else:
+            return match.group()
 
     def python_sub(self, match):
-            if isinstance(match, str):
-                code = match
-            else:
-                code = match.group()[3:-1]
+        if isinstance(match, str):
+            code = match
+        else:
+            code = match.group()[3:-1]
 
-            # Do not run code that contains one or more unexpanded variables
-            # instead return the code with the characters we removed put back
-            if __expand_var_regexp__.findall(code):
-                return "${@" + code + "}"
+        # Do not run code that contains one or more unexpanded variables
+        # instead return the code with the characters we removed put back
+        if __expand_var_regexp__.findall(code):
+            return "${@" + code + "}"
 
-            if self.varname:
-                varname = 'Var <%s>' % self.varname
-            else:
-                varname = '<expansion>'
-            codeobj = compile(code.strip(), varname, "eval")
+        if self.varname:
+            varname = 'Var <%s>' % self.varname
+        else:
+            varname = '<expansion>'
+        codeobj = compile(code.strip(), varname, "eval")
 
-            parser = bb.codeparser.PythonParser(self.varname, logger)
-            parser.parse_python(code)
-            if self.varname:
-                vardeps = self.d.getVarFlag(self.varname, "vardeps")
-                if vardeps is None:
-                    parser.log.flush()
-            else:
+        parser = bb.codeparser.PythonParser(self.varname, logger)
+        parser.parse_python(code)
+        if self.varname:
+            vardeps = self.d.getVarFlag(self.varname, "vardeps")
+            if vardeps is None:
                 parser.log.flush()
-            self.references |= parser.references
-            self.execs |= parser.execs
-
-            for k in parser.contains:
-                if k not in self.contains:
-                    self.contains[k] = parser.contains[k].copy()
-                else:
-                    self.contains[k].update(parser.contains[k])
-            value = utils.better_eval(codeobj, DataContext(self.d), {'d' : self.d})
-            return str(value)
+        else:
+            parser.log.flush()
+        self.references |= parser.references
+        self.execs |= parser.execs
 
+        for k in parser.contains:
+            if k not in self.contains:
+                self.contains[k] = parser.contains[k].copy()
+            else:
+                self.contains[k].update(parser.contains[k])
+        value = utils.better_eval(codeobj, DataContext(self.d), {'d' : self.d})
+        return str(value)
 
 class DataContext(dict):
+    excluded = set([i for i in dir(builtins) if not i.startswith('_')] + ['oe'])
+
     def __init__(self, metadata, **kwargs):
         self.metadata = metadata
         dict.__init__(self, **kwargs)
         self['d'] = metadata
+        self.context = set(bb.utils.get_context())
 
     def __missing__(self, key):
-        # Skip commonly accessed invalid variables
-        if key in ['bb', 'oe', 'int', 'bool', 'time', 'str', 'os']:
+        if key in self.excluded or key in self.context:
             raise KeyError(key)
+
         value = self.metadata.getVar(key)
-        if value is None or self.metadata.getVarFlag(key, 'func', False):
+        if value is None:
             raise KeyError(key)
         else:
             return value
@@ -267,12 +272,9 @@ class VariableHistory(object):
             return
         if 'op' not in loginfo or not loginfo['op']:
             loginfo['op'] = 'set'
-        if 'detail' in loginfo:
-            loginfo['detail'] = str(loginfo['detail'])
         if 'variable' not in loginfo or 'file' not in loginfo:
             raise ValueError("record() missing variable or file.")
         var = loginfo['variable']
-
         if var not in self.variables:
             self.variables[var] = []
         if not isinstance(self.variables[var], list):
@@ -331,7 +333,8 @@ class VariableHistory(object):
                     flag = '[%s] ' % (event['flag'])
                 else:
                     flag = ''
-                o.write("#   %s %s:%s%s\n#     %s\"%s\"\n" % (event['op'], event['file'], event['line'], display_func, flag, re.sub('\n', '\n#     ', event['detail'])))
+                o.write("#   %s %s:%s%s\n#     %s\"%s\"\n" % \
+                    (event['op'], event['file'], event['line'], display_func, flag, re.sub('\n', '\n#     ', str(event['detail']))))
             if len(history) > 1:
                 o.write("# pre-expansion value:\n")
                 o.write('#   "%s"\n' % (commentVal))
@@ -385,7 +388,7 @@ class VariableHistory(object):
             if isset and event['op'] == 'set?':
                 continue
             isset = True
-            items = d.expand(event['detail']).split()
+            items = d.expand(str(event['detail'])).split()
             for item in items:
                 # This is a little crude but is belt-and-braces to avoid us
                 # having to handle every possible operation type specifically
@@ -577,12 +580,10 @@ class DataSmart(MutableMapping):
             else:
                 loginfo['op'] = keyword
             self.varhistory.record(**loginfo)
-            # todo make sure keyword is not __doc__ or __module__
             # pay the cookie monster
 
             # more cookies for the cookie monster
-            if ':' in var:
-                self._setvar_update_overrides(base, **loginfo)
+            self._setvar_update_overrides(base, **loginfo)
 
             if base in self.overridevars:
                 self._setvar_update_overridevars(var, value)
@@ -635,6 +636,7 @@ class DataSmart(MutableMapping):
                 nextnew.update(vardata.contains.keys())
             new = nextnew
         self.overrides = None
+        self.expand_cache = {}
 
     def _setvar_update_overrides(self, var, **loginfo):
         # aka pay the cookie monster
@@ -824,6 +826,8 @@ class DataSmart(MutableMapping):
                 value = copy.copy(local_var[flag])
             elif flag == "_content" and "_defaultval" in local_var and not noweakdefault:
                 value = copy.copy(local_var["_defaultval"])
+            elif "_defaultval_flag_"+flag in local_var and not noweakdefault:
+                value = copy.copy(local_var["_defaultval_flag_"+flag])
 
 
         if flag == "_content" and local_var is not None and ":append" in local_var and not parsing:
@@ -915,6 +919,8 @@ class DataSmart(MutableMapping):
             self.varhistory.record(**loginfo)
 
             del self.dict[var][flag]
+            if ("_defaultval_flag_" + flag) in self.dict[var]:
+                del self.dict[var]["_defaultval_flag_" + flag]
 
     def appendVarFlag(self, var, flag, value, **loginfo):
         loginfo['op'] = 'append'
@@ -949,17 +955,22 @@ class DataSmart(MutableMapping):
         flags = {}
 
         if local_var:
-            for i in local_var:
-                if i.startswith(("_", ":")) and not internalflags:
+            for i, val in local_var.items():
+                if i.startswith("_defaultval_flag_") and not internalflags:
+                    i = i[len("_defaultval_flag_"):]
+                    if i not in local_var:
+                        flags[i] = val
+                elif i.startswith(("_", ":")) and not internalflags:
                     continue
-                flags[i] = local_var[i]
+                else:
+                    flags[i] = val
+
                 if expand and i in expand:
                     flags[i] = self.expand(flags[i], var + "[" + i + "]")
         if len(flags) == 0:
             return None
         return flags
 
-
     def delVarFlags(self, var, **loginfo):
         self.expand_cache = {}
         if not var in self.dict:

bitbake/lib/bb/event.py

@@ -19,7 +19,6 @@ import sys
 import threading
 import traceback
 
-import bb.exceptions
 import bb.utils
 
 # This is the pid for which we should generate the event. This is set when
@@ -195,7 +194,12 @@ def fire_ui_handlers(event, d):
         ui_queue.append(event)
         return
 
-    with bb.utils.lock_timeout(_thread_lock):
+    with bb.utils.lock_timeout_nocheck(_thread_lock) as lock:
+        if not lock:
+            # If we can't get the lock, we may be recursively called, queue and return
+            ui_queue.append(event)
+            return
+
         errors = []
         for h in _ui_handlers:
             #print "Sending event %s" % event
@@ -214,6 +218,9 @@ def fire_ui_handlers(event, d):
         for h in errors:
             del _ui_handlers[h]
 
+    while ui_queue:
+        fire_ui_handlers(ui_queue.pop(), d)
+
 def fire(event, d):
     """Fire off an Event"""
 
@@ -257,14 +264,15 @@ def register(name, handler, mask=None, filename=None, lineno=None, data=None):
         # handle string containing python code
         if isinstance(handler, str):
             tmp = "def %s(e, d):\n%s" % (name, handler)
+            # Inject empty lines to make code match lineno in filename
+            if lineno is not None:
+                tmp = "\n" * (lineno-1) + tmp
             try:
                 code = bb.methodpool.compile_cache(tmp)
                 if not code:
                     if filename is None:
                         filename = "%s(e, d)" % name
                     code = compile(tmp, filename, "exec", ast.PyCF_ONLY_AST)
-                    if lineno is not None:
-                        ast.increment_lineno(code, lineno-1)
                     code = compile(code, filename, "exec")
                     bb.methodpool.compile_cache_add(tmp, code)
             except SyntaxError:
@@ -758,13 +766,7 @@ class LogHandler(logging.Handler):
 
     def emit(self, record):
         if record.exc_info:
-            etype, value, tb = record.exc_info
-            if hasattr(tb, 'tb_next'):
-                tb = list(bb.exceptions.extract_traceback(tb, context=3))
-            # Need to turn the value into something the logging system can pickle
-            record.bb_exc_info = (etype, value, tb)
-            record.bb_exc_formatted = bb.exceptions.format_exception(etype, value, tb, limit=5)
-            value = str(value)
+            record.bb_exc_formatted = traceback.format_exception(*record.exc_info)
             record.exc_info = None
         fire(record, None)
 
@@ -857,6 +859,14 @@ class FindSigInfoResult(Event):
         Event.__init__(self)
         self.result = result
 
+class GetTaskSignatureResult(Event):
+    """
+    Event to return results from GetTaskSignatures command
+    """
+    def __init__(self, sig):
+        Event.__init__(self)
+        self.sig = sig
+
 class ParseError(Event):
     """
     Event to indicate parse failed

bitbake/lib/bb/exceptions.py

@@ -1,96 +0,0 @@
-#
-# Copyright BitBake Contributors
-#
-# SPDX-License-Identifier: GPL-2.0-only
-#
-
-import inspect
-import traceback
-import bb.namedtuple_with_abc
-from collections import namedtuple
-
-
-class TracebackEntry(namedtuple.abc):
-    """Pickleable representation of a traceback entry"""
-    _fields = 'filename lineno function args code_context index'
-    _header = '  File "{0.filename}", line {0.lineno}, in {0.function}{0.args}'
-
-    def format(self, formatter=None):
-        if not self.code_context:
-            return self._header.format(self) + '\n'
-
-        formatted = [self._header.format(self) + ':\n']
-
-        for lineindex, line in enumerate(self.code_context):
-            if formatter:
-                line = formatter(line)
-
-            if lineindex == self.index:
-                formatted.append('    >%s' % line)
-            else:
-                formatted.append('     %s' % line)
-        return formatted
-
-    def __str__(self):
-        return ''.join(self.format())
-
-def _get_frame_args(frame):
-    """Get the formatted arguments and class (if available) for a frame"""
-    arginfo = inspect.getargvalues(frame)
-
-    try:
-        if not arginfo.args:
-            return '', None
-    # There have been reports from the field of python 2.6 which doesn't 
-    # return a namedtuple here but simply a tuple so fallback gracefully if
-    # args isn't present.
-    except AttributeError:
-        return '', None
-
-    firstarg = arginfo.args[0]
-    if firstarg == 'self':
-        self = arginfo.locals['self']
-        cls = self.__class__.__name__
-
-        arginfo.args.pop(0)
-        del arginfo.locals['self']
-    else:
-        cls = None
-
-    formatted = inspect.formatargvalues(*arginfo)
-    return formatted, cls
-
-def extract_traceback(tb, context=1):
-    frames = inspect.getinnerframes(tb, context)
-    for frame, filename, lineno, function, code_context, index in frames:
-        formatted_args, cls = _get_frame_args(frame)
-        if cls:
-            function = '%s.%s' % (cls, function)
-        yield TracebackEntry(filename, lineno, function, formatted_args,
-                             code_context, index)
-
-def format_extracted(extracted, formatter=None, limit=None):
-    if limit:
-        extracted = extracted[-limit:]
-
-    formatted = []
-    for tracebackinfo in extracted:
-        formatted.extend(tracebackinfo.format(formatter))
-    return formatted
-
-
-def format_exception(etype, value, tb, context=1, limit=None, formatter=None):
-    formatted = ['Traceback (most recent call last):\n']
-
-    if hasattr(tb, 'tb_next'):
-        tb = extract_traceback(tb, context)
-
-    formatted.extend(format_extracted(tb, formatter, limit))
-    formatted.extend(traceback.format_exception_only(etype, value))
-    return formatted
-
-def to_string(exc):
-    if isinstance(exc, SystemExit):
-        if not isinstance(exc.code, str):
-            return 'Exited with "%d"' % exc.code
-    return str(exc)

bitbake/lib/bb/fetch2/__init__.py

@@ -23,17 +23,18 @@ import collections
 import subprocess
 import pickle
 import errno
-import bb.persist_data, bb.utils
+import bb.utils
 import bb.checksum
 import bb.process
 import bb.event
 
 __version__ = "2"
 _checksum_cache = bb.checksum.FileChecksumCache()
+_revisions_cache = bb.checksum.RevisionsCache()
 
 logger = logging.getLogger("BitBake.Fetcher")
 
-CHECKSUM_LIST = [ "md5", "sha256", "sha1", "sha384", "sha512" ]
+CHECKSUM_LIST = [ "goh1", "md5", "sha256", "sha1", "sha384", "sha512" ]
 SHOWN_CHECKSUM_LIST = ["sha256"]
 
 class BBFetchException(Exception):
@@ -237,7 +238,7 @@ class URI(object):
         # to RFC compliant URL format. E.g.:
         #   file://foo.diff -> file:foo.diff
         if urlp.scheme in self._netloc_forbidden:
-            uri = re.sub("(?<=:)//(?!/)", "", uri, 1)
+            uri = re.sub(r"(?<=:)//(?!/)", "", uri, count=1)
             reparse = 1
 
         if reparse:
@@ -290,12 +291,12 @@ class URI(object):
 
     def _param_str_split(self, string, elmdelim, kvdelim="="):
         ret = collections.OrderedDict()
-        for k, v in [x.split(kvdelim, 1) for x in string.split(elmdelim) if x]:
+        for k, v in [x.split(kvdelim, 1) if kvdelim in x else (x, None) for x in string.split(elmdelim) if x]:
             ret[k] = v
         return ret
 
     def _param_str_join(self, dict_, elmdelim, kvdelim="="):
-        return elmdelim.join([kvdelim.join([k, v]) for k, v in dict_.items()])
+        return elmdelim.join([kvdelim.join([k, v]) if v else k for k, v in dict_.items()])
 
     @property
     def hostport(self):
@@ -352,6 +353,14 @@ def decodeurl(url):
     user, password, parameters).
     """
 
+    uri = URI(url)
+    path = uri.path if uri.path else "/"
+    return uri.scheme, uri.hostport, path, uri.username, uri.password, uri.params
+
+def decodemirrorurl(url):
+    """Decodes a mirror URL into the tokens (scheme, network location, path,
+    user, password, parameters).
+    """
     m = re.compile('(?P<type>[^:]*)://((?P<user>[^/;]+)@)?(?P<location>[^;]+)(;(?P<parm>.*))?').match(url)
     if not m:
         raise MalformedUrl(url)
@@ -370,6 +379,9 @@ def decodeurl(url):
     elif type.lower() == 'file':
         host = ""
         path = location
+        if user:
+            path = user + '@' + path
+            user = ""
     else:
         host = location
         path = "/"
@@ -388,7 +400,7 @@ def decodeurl(url):
             if s:
                 if not '=' in s:
                     raise MalformedUrl(url, "The URL: '%s' is invalid: parameter %s does not specify a value (missing '=')" % (url, s))
-                s1, s2 = s.split('=')
+                s1, s2 = s.split('=', 1)
                 p[s1] = s2
 
     return type, host, urllib.parse.unquote(path), user, pswd, p
@@ -402,32 +414,34 @@ def encodeurl(decoded):
 
     if not type:
         raise MissingParameterError('type', "encoded from the data %s" % str(decoded))
-    url = ['%s://' % type]
+    uri = URI()
+    uri.scheme = type
     if user and type != "file":
-        url.append("%s" % user)
+        uri.username = user
         if pswd:
-            url.append(":%s" % pswd)
-        url.append("@")
+            uri.password = pswd
     if host and type != "file":
-        url.append("%s" % host)
+        uri.hostname = host
     if path:
         # Standardise path to ensure comparisons work
         while '//' in path:
             path = path.replace("//", "/")
-        url.append("%s" % urllib.parse.quote(path))
+        uri.path = path
+        if type == "file":
+            # Use old not IETF compliant style
+            uri.relative = False
     if p:
-        for parm in p:
-            url.append(";%s=%s" % (parm, p[parm]))
+        uri.params = p
 
-    return "".join(url)
+    return str(uri)
 
 def uri_replace(ud, uri_find, uri_replace, replacements, d, mirrortarball=None):
     if not ud.url or not uri_find or not uri_replace:
         logger.error("uri_replace: passed an undefined value, not replacing")
         return None
-    uri_decoded = list(decodeurl(ud.url))
-    uri_find_decoded = list(decodeurl(uri_find))
-    uri_replace_decoded = list(decodeurl(uri_replace))
+    uri_decoded = list(decodemirrorurl(ud.url))
+    uri_find_decoded = list(decodemirrorurl(uri_find))
+    uri_replace_decoded = list(decodemirrorurl(uri_replace))
     logger.debug2("For url %s comparing %s to %s" % (uri_decoded, uri_find_decoded, uri_replace_decoded))
     result_decoded = ['', '', '', '', '', {}]
     # 0 - type, 1 - host, 2 - path, 3 - user,  4- pswd, 5 - params
@@ -460,7 +474,7 @@ def uri_replace(ud, uri_find, uri_replace, replacements, d, mirrortarball=None):
                 for k in replacements:
                     uri_replace_decoded[loc] = uri_replace_decoded[loc].replace(k, replacements[k])
                 #bb.note("%s %s %s" % (regexp, uri_replace_decoded[loc], uri_decoded[loc]))
-                result_decoded[loc] = re.sub(regexp, uri_replace_decoded[loc], uri_decoded[loc], 1)
+                result_decoded[loc] = re.sub(regexp, uri_replace_decoded[loc], uri_decoded[loc], count=1)
             if loc == 2:
                 # Handle path manipulations
                 basename = None
@@ -493,18 +507,23 @@ methods = []
 urldata_cache = {}
 saved_headrevs = {}
 
-def fetcher_init(d):
+def fetcher_init(d, servercontext=True):
     """
     Called to initialize the fetchers once the configuration data is known.
     Calls before this must not hit the cache.
     """
 
-    revs = bb.persist_data.persist('BB_URI_HEADREVS', d)
+    _checksum_cache.init_cache(d.getVar("BB_CACHEDIR"))
+    _revisions_cache.init_cache(d.getVar("BB_CACHEDIR"))
+
+    if not servercontext:
+        return
+
     try:
         # fetcher_init is called multiple times, so make sure we only save the
         # revs the first time it is called.
         if not bb.fetch2.saved_headrevs:
-            bb.fetch2.saved_headrevs = dict(revs)
+            bb.fetch2.saved_headrevs = _revisions_cache.get_revs()
     except:
         pass
 
@@ -514,11 +533,10 @@ def fetcher_init(d):
         logger.debug("Keeping SRCREV cache due to cache policy of: %s", srcrev_policy)
     elif srcrev_policy == "clear":
         logger.debug("Clearing SRCREV cache due to cache policy of: %s", srcrev_policy)
-        revs.clear()
+        _revisions_cache.clear_cache()
     else:
         raise FetchError("Invalid SRCREV cache policy of: %s" % srcrev_policy)
 
-    _checksum_cache.init_cache(d.getVar("BB_CACHEDIR"))
 
     for m in methods:
         if hasattr(m, "init"):
@@ -526,9 +544,11 @@ def fetcher_init(d):
 
 def fetcher_parse_save():
     _checksum_cache.save_extras()
+    _revisions_cache.save_extras()
 
 def fetcher_parse_done():
     _checksum_cache.save_merge()
+    _revisions_cache.save_merge()
 
 def fetcher_compare_revisions(d):
     """
@@ -536,7 +556,7 @@ def fetcher_compare_revisions(d):
     when bitbake was started and return true if they have changed.
     """
 
-    headrevs = dict(bb.persist_data.persist('BB_URI_HEADREVS', d))
+    headrevs = _revisions_cache.get_revs()
     return headrevs != bb.fetch2.saved_headrevs
 
 def mirror_from_string(data):
@@ -753,7 +773,7 @@ def get_autorev(d):
     d.setVar("__BBAUTOREV_SEEN", True)
     return "AUTOINC"
 
-def get_srcrev(d, method_name='sortable_revision'):
+def _get_srcrev(d, method_name='sortable_revision'):
     """
     Return the revision string, usually for use in the version string (PV) of the current package
     Most packages usually only have one SCM so we just pass on the call.
@@ -774,6 +794,7 @@ def get_srcrev(d, method_name='sortable_revision'):
     d.setVar("__BBINSRCREV", True)
 
     scms = []
+    revs = []
     fetcher = Fetch(d.getVar('SRC_URI').split(), d)
     urldata = fetcher.ud
     for u in urldata:
@@ -781,16 +802,19 @@ def get_srcrev(d, method_name='sortable_revision'):
             scms.append(u)
 
     if not scms:
-        raise FetchError("SRCREV was used yet no valid SCM was found in SRC_URI")
+        d.delVar("__BBINSRCREV")
+        return "", revs
+
 
     if len(scms) == 1 and len(urldata[scms[0]].names) == 1:
         autoinc, rev = getattr(urldata[scms[0]].method, method_name)(urldata[scms[0]], d, urldata[scms[0]].names[0])
+        revs.append(rev)
         if len(rev) > 10:
             rev = rev[:10]
         d.delVar("__BBINSRCREV")
         if autoinc:
-            return "AUTOINC+" + rev
-        return rev
+            return "AUTOINC+" + rev, revs
+        return rev, revs
 
     #
     # Mutiple SCMs are in SRC_URI so we resort to SRCREV_FORMAT
@@ -806,6 +830,7 @@ def get_srcrev(d, method_name='sortable_revision'):
         ud = urldata[scm]
         for name in ud.names:
             autoinc, rev = getattr(ud.method, method_name)(ud, d, name)
+            revs.append(rev)
             seenautoinc = seenautoinc or autoinc
             if len(rev) > 10:
                 rev = rev[:10]
@@ -823,7 +848,21 @@ def get_srcrev(d, method_name='sortable_revision'):
         format = "AUTOINC+" + format
 
     d.delVar("__BBINSRCREV")
-    return format
+    return format, revs
+
+def get_hashvalue(d, method_name='sortable_revision'):
+    pkgv, revs = _get_srcrev(d, method_name=method_name)
+    return " ".join(revs)
+
+def get_pkgv_string(d, method_name='sortable_revision'):
+    pkgv, revs = _get_srcrev(d, method_name=method_name)
+    return pkgv
+
+def get_srcrev(d, method_name='sortable_revision'):
+    pkgv, revs = _get_srcrev(d, method_name=method_name)
+    if not pkgv:
+        raise FetchError("SRCREV was used yet no valid SCM was found in SRC_URI")
+    return pkgv
 
 def localpath(url, d):
     fetcher = bb.fetch2.Fetch([url], d)
@@ -853,8 +892,13 @@ FETCH_EXPORT_VARS = ['HOME', 'PATH',
                      'AWS_PROFILE',
                      'AWS_ACCESS_KEY_ID',
                      'AWS_SECRET_ACCESS_KEY',
+                     'AWS_ROLE_ARN',
+                     'AWS_WEB_IDENTITY_TOKEN_FILE',
                      'AWS_DEFAULT_REGION',
+                     'AWS_SESSION_TOKEN',
                      'GIT_CACHE_PATH',
+                     'REMOTE_CONTAINERS_IPC',
+                     'GITHUB_TOKEN',
                      'SSL_CERT_DIR']
 
 def get_fetcher_environment(d):
@@ -920,7 +964,10 @@ def runfetchcmd(cmd, d, quiet=False, cleanup=None, log=None, workdir=None):
         elif e.stderr:
             output = "output:\n%s" % e.stderr
         else:
-            output = "no output"
+            if log:
+                output = "see logfile for output"
+            else:
+                output = "no output"
         error_message = "Fetch command %s failed with exit code %s, %s" % (e.command, e.exitcode, output)
     except bb.process.CmdError as e:
         error_message = "Fetch command %s could not be run:\n%s" % (e.command, e.msg)
@@ -1092,7 +1139,8 @@ def try_mirror_url(fetch, origud, ud, ld, check = False):
             logger.debug("Mirror fetch failure for url %s (original url: %s)" % (ud.url, origud.url))
             logger.debug(str(e))
         try:
-            ud.method.clean(ud, ld)
+            if ud.method.cleanup_upon_failure():
+                ud.method.clean(ud, ld)
         except UnboundLocalError:
             pass
         return False
@@ -1147,7 +1195,7 @@ def trusted_network(d, url):
     if bb.utils.to_boolean(d.getVar("BB_NO_NETWORK")):
         return True
 
-    pkgname = d.expand(d.getVar('PN', False))
+    pkgname = d.getVar('PN')
     trusted_hosts = None
     if pkgname:
         trusted_hosts = d.getVarFlag('BB_ALLOWED_NETWORKS', pkgname, False)
@@ -1234,9 +1282,9 @@ def get_checksum_file_list(d):
         ud = fetch.ud[u]
         if ud and isinstance(ud.method, local.Local):
             found = False
-            paths = ud.method.localpaths(ud, d)
+            paths = ud.method.localfile_searchpaths(ud, d)
             for f in paths:
-                pth = ud.decodedurl
+                pth = ud.path
                 if os.path.exists(f):
                     found = True
                 filelist.append(f + ":" + str(os.path.exists(f)))
@@ -1281,20 +1329,23 @@ class FetchData(object):
         self.setup = False
 
         def configure_checksum(checksum_id):
+            checksum_plain_name = "%ssum" % checksum_id
             if "name" in self.parm:
                 checksum_name = "%s.%ssum" % (self.parm["name"], checksum_id)
             else:
-                checksum_name = "%ssum" % checksum_id
-
-            setattr(self, "%s_name" % checksum_id, checksum_name)
+                checksum_name = checksum_plain_name
 
             if checksum_name in self.parm:
                 checksum_expected = self.parm[checksum_name]
-            elif self.type not in ["http", "https", "ftp", "ftps", "sftp", "s3", "az", "crate"]:
+            elif checksum_plain_name in self.parm:
+                checksum_expected = self.parm[checksum_plain_name]
+                checksum_name = checksum_plain_name
+            elif self.type not in ["http", "https", "ftp", "ftps", "sftp", "s3", "az", "crate", "gs", "gomod", "npm"]:
                 checksum_expected = None
             else:
                 checksum_expected = d.getVarFlag("SRC_URI", checksum_name)
 
+            setattr(self, "%s_name" % checksum_id, checksum_name)
             setattr(self, "%s_expected" % checksum_id, checksum_expected)
 
         self.names = self.parm.get("name",'default').split(',')
@@ -1402,6 +1453,9 @@ class FetchMethod(object):
         Is localpath something that can be represented by a checksum?
         """
 
+        # We cannot compute checksums for None
+        if urldata.localpath is None:
+            return False
         # We cannot compute checksums for directories
         if os.path.isdir(urldata.localpath):
             return False
@@ -1414,6 +1468,12 @@ class FetchMethod(object):
         """
         return False
 
+    def cleanup_upon_failure(self):
+        """
+        When a fetch fails, should clean() be called?
+        """
+        return True
+
     def verify_donestamp(self, ud, d):
         """
         Verify the donestamp file
@@ -1474,7 +1534,7 @@ class FetchMethod(object):
                      (file, urldata.parm.get('unpack')))
 
         base, ext = os.path.splitext(file)
-        if ext in ['.gz', '.bz2', '.Z', '.xz', '.lz']:
+        if ext in ['.gz', '.bz2', '.Z', '.xz', '.lz', '.zst']:
             efile = os.path.join(rootdir, os.path.basename(base))
         else:
             efile = file
@@ -1556,6 +1616,7 @@ class FetchMethod(object):
             unpackdir = rootdir
 
         if not unpack or not cmd:
+            urldata.unpack_tracer.unpack("file-copy", unpackdir)
             # If file == dest, then avoid any copies, as we already put the file into dest!
             dest = os.path.join(unpackdir, os.path.basename(file))
             if file != dest and not (os.path.exists(dest) and os.path.samefile(file, dest)):
@@ -1569,7 +1630,9 @@ class FetchMethod(object):
                     if urlpath.find("/") != -1:
                         destdir = urlpath.rsplit("/", 1)[0] + '/'
                         bb.utils.mkdirhier("%s/%s" % (unpackdir, destdir))
-                cmd = 'cp -fpPRH "%s" "%s"' % (file, destdir)
+                cmd = 'cp --force --preserve=timestamps --no-dereference --recursive -H "%s" "%s"' % (file, destdir)
+        else:
+            urldata.unpack_tracer.unpack("archive-extract", unpackdir)
 
         if not cmd:
             return
@@ -1623,13 +1686,13 @@ class FetchMethod(object):
         if not hasattr(self, "_latest_revision"):
             raise ParameterError("The fetcher for this URL does not support _latest_revision", ud.url)
 
-        revs = bb.persist_data.persist('BB_URI_HEADREVS', d)
         key = self.generate_revision_key(ud, d, name)
-        try:
-            return revs[key]
-        except KeyError:
-            revs[key] = rev = self._latest_revision(ud, d, name)
-            return rev
+
+        rev = _revisions_cache.get_rev(key)
+        if rev is None:
+            rev = self._latest_revision(ud, d, name)
+            _revisions_cache.set_rev(key, rev)
+        return rev
 
     def sortable_revision(self, ud, d, name):
         latest_rev = self._build_revision(ud, d, name)
@@ -1661,6 +1724,55 @@ class FetchMethod(object):
         """
         return []
 
+
+class DummyUnpackTracer(object):
+    """
+    Abstract API definition for a class that traces unpacked source files back
+    to their respective upstream SRC_URI entries, for software composition
+    analysis, license compliance and detailed SBOM generation purposes.
+    User may load their own unpack tracer class (instead of the dummy
+    one) by setting the BB_UNPACK_TRACER_CLASS config parameter.
+    """
+    def start(self, unpackdir, urldata_dict, d):
+        """
+        Start tracing the core Fetch.unpack process, using an index to map
+        unpacked files to each SRC_URI entry.
+        This method is called by Fetch.unpack and it may receive nested calls by
+        gitsm and npmsw fetchers, that expand SRC_URI entries by adding implicit
+        URLs and by recursively calling Fetch.unpack from new (nested) Fetch
+        instances.
+        """
+        return
+    def start_url(self, url):
+        """Start tracing url unpack process.
+        This method is called by Fetch.unpack before the fetcher-specific unpack
+        method starts, and it may receive nested calls by gitsm and npmsw
+        fetchers.
+        """
+        return
+    def unpack(self, unpack_type, destdir):
+        """
+        Set unpack_type and destdir for current url.
+        This method is called by the fetcher-specific unpack method after url
+        tracing started.
+        """
+        return
+    def finish_url(self, url):
+        """Finish tracing url unpack process and update the file index.
+        This method is called by Fetch.unpack after the fetcher-specific unpack
+        method finished its job, and it may receive nested calls by gitsm
+        and npmsw fetchers.
+        """
+        return
+    def complete(self):
+        """
+        Finish tracing the Fetch.unpack process, and check if all nested
+        Fecth.unpack calls (if any) have been completed; if so, save collected
+        metadata.
+        """
+        return
+
+
 class Fetch(object):
     def __init__(self, urls, d, cache = True, localonly = False, connection_cache = None):
         if localonly and cache:
@@ -1681,10 +1793,30 @@ class Fetch(object):
         if key in urldata_cache:
             self.ud = urldata_cache[key]
 
+        # the unpack_tracer object needs to be made available to possible nested
+        # Fetch instances (when those are created by gitsm and npmsw fetchers)
+        # so we set it as a global variable
+        global unpack_tracer
+        try:
+            unpack_tracer
+        except NameError:
+            class_path = d.getVar("BB_UNPACK_TRACER_CLASS")
+            if class_path:
+                # use user-defined unpack tracer class
+                import importlib
+                module_name, _, class_name = class_path.rpartition(".")
+                module = importlib.import_module(module_name)
+                class_ = getattr(module, class_name)
+                unpack_tracer = class_()
+            else:
+                # fall back to the dummy/abstract class
+                unpack_tracer = DummyUnpackTracer()
+
         for url in urls:
             if url not in self.ud:
                 try:
                     self.ud[url] = FetchData(url, d, localonly)
+                    self.ud[url].unpack_tracer = unpack_tracer
                 except NonLocalMethod:
                     if localonly:
                         self.ud[url] = None
@@ -1698,7 +1830,7 @@ class Fetch(object):
             self.ud[url] = FetchData(url, self.d)
 
         self.ud[url].setup_localpath(self.d)
-        return self.d.expand(self.ud[url].localpath)
+        return self.ud[url].localpath
 
     def localpaths(self):
         """
@@ -1751,25 +1883,28 @@ class Fetch(object):
                             logger.debug(str(e))
                             done = False
 
+                d = self.d
                 if premirroronly:
-                    self.d.setVar("BB_NO_NETWORK", "1")
+                    # Only disable the network in a copy
+                    d = bb.data.createCopy(self.d)
+                    d.setVar("BB_NO_NETWORK", "1")
 
                 firsterr = None
                 verified_stamp = False
                 if done:
-                    verified_stamp = m.verify_donestamp(ud, self.d)
-                if not done and (not verified_stamp or m.need_update(ud, self.d)):
+                    verified_stamp = m.verify_donestamp(ud, d)
+                if not done and (not verified_stamp or m.need_update(ud, d)):
                     try:
-                        if not trusted_network(self.d, ud.url):
+                        if not trusted_network(d, ud.url):
                             raise UntrustedUrl(ud.url)
                         logger.debug("Trying Upstream")
-                        m.download(ud, self.d)
+                        m.download(ud, d)
                         if hasattr(m, "build_mirror_data"):
-                            m.build_mirror_data(ud, self.d)
+                            m.build_mirror_data(ud, d)
                         done = True
                         # early checksum verify, so that if checksum mismatched,
                         # fetcher still have chance to fetch from mirror
-                        m.update_donestamp(ud, self.d)
+                        m.update_donestamp(ud, d)
 
                     except bb.fetch2.NetworkAccess:
                         raise
@@ -1787,18 +1922,18 @@ class Fetch(object):
                             logger.debug(str(e))
                         firsterr = e
                         # Remove any incomplete fetch
-                        if not verified_stamp:
-                            m.clean(ud, self.d)
+                        if not verified_stamp and m.cleanup_upon_failure():
+                            m.clean(ud, d)
                         logger.debug("Trying MIRRORS")
-                        mirrors = mirror_from_string(self.d.getVar('MIRRORS'))
-                        done = m.try_mirrors(self, ud, self.d, mirrors)
+                        mirrors = mirror_from_string(d.getVar('MIRRORS'))
+                        done = m.try_mirrors(self, ud, d, mirrors)
 
-                if not done or not m.done(ud, self.d):
+                if not done or not m.done(ud, d):
                     if firsterr:
                         logger.error(str(firsterr))
                     raise FetchError("Unable to fetch URL from any source.", u)
 
-                m.update_donestamp(ud, self.d)
+                m.update_donestamp(ud, d)
 
             except IOError as e:
                 if e.errno in [errno.ESTALE]:
@@ -1850,7 +1985,7 @@ class Fetch(object):
                     ret = m.try_mirrors(self, ud, self.d, mirrors, True)
 
             if not ret:
-                raise FetchError("URL %s doesn't work" % u, u)
+                raise FetchError("URL doesn't work", u)
 
     def unpack(self, root, urls=None):
         """
@@ -1860,6 +1995,8 @@ class Fetch(object):
         if not urls:
             urls = self.urls
 
+        unpack_tracer.start(root, self.ud, self.d)
+
         for u in urls:
             ud = self.ud[u]
             ud.setup_localpath(self.d)
@@ -1867,11 +2004,15 @@ class Fetch(object):
             if ud.lockfile:
                 lf = bb.utils.lockfile(ud.lockfile)
 
+            unpack_tracer.start_url(u)
             ud.method.unpack(ud, root, self.d)
+            unpack_tracer.finish_url(u)
 
             if ud.lockfile:
                 bb.utils.unlockfile(lf)
 
+        unpack_tracer.complete()
+
     def clean(self, urls=None):
         """
         Clean files that the fetcher gets or places
@@ -1973,6 +2114,8 @@ from . import npm
 from . import npmsw
 from . import az
 from . import crate
+from . import gcp
+from . import gomod
 
 methods.append(local.Local())
 methods.append(wget.Wget())
@@ -1994,3 +2137,6 @@ methods.append(npm.Npm())
 methods.append(npmsw.NpmShrinkWrap())
 methods.append(az.Az())
 methods.append(crate.Crate())
+methods.append(gcp.GCP())
+methods.append(gomod.GoMod())
+methods.append(gomod.GoModGit())

bitbake/lib/bb/fetch2/az.py

@@ -66,11 +66,12 @@ class Az(Wget):
         else:
             azuri = '%s%s%s' % ('https://', ud.host, ud.path)
 
+        dldir = d.getVar("DL_DIR")
         if os.path.exists(ud.localpath):
             # file exists, but we didnt complete it.. trying again.
-            fetchcmd += d.expand(" -c -P ${DL_DIR} '%s'" % azuri)
+            fetchcmd += " -c -P %s '%s'" % (dldir, azuri)
         else:
-            fetchcmd += d.expand(" -P ${DL_DIR} '%s'" % azuri)
+            fetchcmd += " -P %s '%s'" % (dldir, azuri)
 
         try:
             self._runwget(ud, d, fetchcmd, False)

bitbake/lib/bb/fetch2/clearcase.py

@@ -108,7 +108,7 @@ class ClearCase(FetchMethod):
                                                 ud.module.replace("/", "."),
                                                 ud.label.replace("/", "."))
 
-        ud.viewname         = "%s-view%s" % (ud.identifier, d.getVar("DATETIME", d, True))
+        ud.viewname         = "%s-view%s" % (ud.identifier, d.getVar("DATETIME"))
         ud.csname           = "%s-config-spec" % (ud.identifier)
         ud.ccasedir         = os.path.join(d.getVar("DL_DIR"), ud.type)
         ud.viewdir          = os.path.join(ud.ccasedir, ud.viewname)
@@ -130,8 +130,6 @@ class ClearCase(FetchMethod):
         self.debug("configspecfile  = %s" % ud.configspecfile)
         self.debug("localfile       = %s" % ud.localfile)
 
-        ud.localfile = os.path.join(d.getVar("DL_DIR"), ud.localfile)
-
     def _build_ccase_command(self, ud, command):
         """
         Build up a commandline based on ud
@@ -196,7 +194,7 @@ class ClearCase(FetchMethod):
 
     def need_update(self, ud, d):
         if ("LATEST" in ud.label) or (ud.customspec and "LATEST" in ud.customspec):
-            ud.identifier += "-%s" % d.getVar("DATETIME",d, True)
+            ud.identifier += "-%s" % d.getVar("DATETIME")
             return True
         if os.path.exists(ud.localpath):
             return False

bitbake/lib/bb/fetch2/crate.py

@@ -59,17 +59,18 @@ class Crate(Wget):
         # version is expected to be the last token
         # but ignore possible url parameters which will be used
         # by the top fetcher class
-        version, _, _ = parts[len(parts) -1].partition(";")
+        version = parts[-1].split(";")[0]
         # second to last field is name
-        name = parts[len(parts) - 2]
+        name = parts[-2]
         # host (this is to allow custom crate registries to be specified
-        host = '/'.join(parts[2:len(parts) - 2])
+        host = '/'.join(parts[2:-2])
 
         # if using upstream just fix it up nicely
         if host == 'crates.io':
             host = 'crates.io/api/v1/crates'
 
         ud.url = "https://%s/%s/%s/download" % (host, name, version)
+        ud.versionsurl = "https://%s/%s/versions" % (host, name)
         ud.parm['downloadfilename'] = "%s-%s.crate" % (name, version)
         if 'name' not in ud.parm:
             ud.parm['name'] = '%s-%s' % (name, version)
@@ -98,11 +99,13 @@ class Crate(Wget):
         save_cwd = os.getcwd()
         os.chdir(rootdir)
 
-        pn = d.getVar('BPN')
-        if pn == ud.parm.get('name'):
+        bp = d.getVar('BP')
+        if bp == ud.parm.get('name'):
             cmd = "tar -xz --no-same-owner -f %s" % thefile
+            ud.unpack_tracer.unpack("crate-extract", rootdir)
         else:
             cargo_bitbake = self._cargo_bitbake_path(rootdir)
+            ud.unpack_tracer.unpack("cargo-extract", cargo_bitbake)
 
             cmd = "tar -xz --no-same-owner -f %s -C %s" % (thefile, cargo_bitbake)
 
@@ -137,3 +140,11 @@ class Crate(Wget):
             mdpath = os.path.join(bbpath, cratepath, mdfile)
             with open(mdpath, "w") as f:
                 json.dump(metadata, f)
+
+    def latest_versionstring(self, ud, d):
+        from functools import cmp_to_key
+        json_data = json.loads(self._fetch_index(ud.versionsurl, ud, d))
+        versions = [(0, i["num"], "") for i in json_data["versions"]]
+        versions = sorted(versions, key=cmp_to_key(bb.utils.vercmp))
+
+        return (versions[-1][1], "")

bitbake/lib/bb/fetch2/gcp.py

@@ -0,0 +1,102 @@
+"""
+BitBake 'Fetch' implementation for Google Cloup Platform Storage.
+
+Class for fetching files from Google Cloud Storage using the
+Google Cloud Storage Python Client. The GCS Python Client must
+be correctly installed, configured and authenticated prior to use.
+Additionally, gsutil must also be installed.
+
+"""
+
+# Copyright (C) 2023, Snap Inc.
+#
+# Based in part on bb.fetch2.s3:
+#    Copyright (C) 2017 Andre McCurdy
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import bb
+import urllib.parse, urllib.error
+from bb.fetch2 import FetchMethod
+from bb.fetch2 import FetchError
+from bb.fetch2 import logger
+
+class GCP(FetchMethod):
+    """
+    Class to fetch urls via GCP's Python API.
+    """
+    def __init__(self):
+        self.gcp_client = None
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with GCP.
+        """
+        return ud.type in ['gs']
+
+    def recommends_checksum(self, urldata):
+        return True
+
+    def urldata_init(self, ud, d):
+        if 'downloadfilename' in ud.parm:
+            ud.basename = ud.parm['downloadfilename']
+        else:
+            ud.basename = os.path.basename(ud.path)
+
+        ud.localfile = ud.basename
+
+    def get_gcp_client(self):
+        from google.cloud import storage
+        self.gcp_client = storage.Client(project=None)
+
+    def download(self, ud, d):
+        """
+        Fetch urls using the GCP API.
+        Assumes localpath was called first.
+        """
+        from google.api_core.exceptions import NotFound
+        logger.debug2(f"Trying to download gs://{ud.host}{ud.path} to {ud.localpath}")
+        if self.gcp_client is None:
+            self.get_gcp_client()
+
+        bb.fetch2.check_network_access(d, "blob.download_to_filename", f"gs://{ud.host}{ud.path}")
+
+        # Path sometimes has leading slash, so strip it
+        path = ud.path.lstrip("/")
+        blob = self.gcp_client.bucket(ud.host).blob(path)
+        try:
+            blob.download_to_filename(ud.localpath)
+        except NotFound:
+            raise FetchError("The GCP API threw a NotFound exception")
+
+        # Additional sanity checks copied from the wget class (although there
+        # are no known issues which mean these are required, treat the GCP API
+        # tool with a little healthy suspicion).
+        if not os.path.exists(ud.localpath):
+            raise FetchError(f"The GCP API returned success for gs://{ud.host}{ud.path} but {ud.localpath} doesn't exist?!")
+
+        if os.path.getsize(ud.localpath) == 0:
+            os.remove(ud.localpath)
+            raise FetchError(f"The downloaded file for gs://{ud.host}{ud.path} resulted in a zero size file?! Deleting and failing since this isn't right.")
+
+        return True
+
+    def checkstatus(self, fetch, ud, d):
+        """
+        Check the status of a URL.
+        """
+        logger.debug2(f"Checking status of gs://{ud.host}{ud.path}")
+        if self.gcp_client is None:
+            self.get_gcp_client()
+
+        bb.fetch2.check_network_access(d, "gcp_client.bucket(ud.host).blob(path).exists()", f"gs://{ud.host}{ud.path}")
+
+        # Path sometimes has leading slash, so strip it
+        path = ud.path.lstrip("/")
+        if self.gcp_client.bucket(ud.host).blob(path).exists() == False:
+            raise FetchError(f"The GCP API reported that gs://{ud.host}{ud.path} does not exist")
+        else:
+            return True

bitbake/lib/bb/fetch2/git.py

@@ -48,10 +48,23 @@ Supported SRC_URI options are:
    instead of branch.
    The default is "0", set nobranch=1 if needed.
 
+- subpath
+   Limit the checkout to a specific subpath of the tree.
+   By default, checkout the whole tree, set subpath=<path> if needed
+
+- destsuffix
+   The name of the path in which to place the checkout.
+   By default, the path is git/, set destsuffix=<suffix> if needed
+
 - usehead
    For local git:// urls to use the current branch HEAD as the revision for use with
    AUTOREV. Implies nobranch.
 
+- lfs
+    Enable the checkout to use LFS for large files. This will download all LFS files
+    in the download step, as the unpack step does not have network access.
+    The default is "1", set lfs=0 to skip.
+
 """
 
 # Copyright (C) 2005 Richard Purdie
@@ -65,6 +78,7 @@ import fnmatch
 import os
 import re
 import shlex
+import shutil
 import subprocess
 import tempfile
 import bb
@@ -73,6 +87,7 @@ from contextlib import contextmanager
 from   bb.fetch2 import FetchMethod
 from   bb.fetch2 import runfetchcmd
 from   bb.fetch2 import logger
+from   bb.fetch2 import trusted_network
 
 
 sha1_re = re.compile(r'^[0-9a-f]{40}$')
@@ -135,6 +150,9 @@ class Git(FetchMethod):
     def supports_checksum(self, urldata):
         return False
 
+    def cleanup_upon_failure(self):
+        return False
+
     def urldata_init(self, ud, d):
         """
         init git specific variable within url data
@@ -189,6 +207,7 @@ class Git(FetchMethod):
         if ud.bareclone:
             ud.cloneflags += " --mirror"
 
+        ud.shallow_skip_fast = False
         ud.shallow = d.getVar("BB_GIT_SHALLOW") == "1"
         ud.shallow_extra_refs = (d.getVar("BB_GIT_SHALLOW_EXTRA_REFS") or "").split()
 
@@ -244,7 +263,7 @@ class Git(FetchMethod):
             for name in ud.names:
                 ud.unresolvedrev[name] = 'HEAD'
 
-        ud.basecmd = d.getVar("FETCHCMD_git") or "git -c gc.autoDetach=false -c core.pager=cat"
+        ud.basecmd = d.getVar("FETCHCMD_git") or "git -c gc.autoDetach=false -c core.pager=cat -c safe.bareRepository=all -c clone.defaultRemoteName=origin"
 
         write_tarballs = d.getVar("BB_GENERATE_MIRROR_TARBALLS") or "0"
         ud.write_tarballs = write_tarballs != "0" or ud.rebaseable
@@ -259,7 +278,7 @@ class Git(FetchMethod):
                     ud.unresolvedrev[name] = ud.revisions[name]
                 ud.revisions[name] = self.latest_revision(ud, d, name)
 
-        gitsrcname = '%s%s' % (ud.host.replace(':', '.'), ud.path.replace('/', '.').replace('*', '.').replace(' ','_'))
+        gitsrcname = '%s%s' % (ud.host.replace(':', '.'), ud.path.replace('/', '.').replace('*', '.').replace(' ','_').replace('(', '_').replace(')', '_'))
         if gitsrcname.startswith('.'):
             gitsrcname = gitsrcname[1:]
 
@@ -310,7 +329,10 @@ class Git(FetchMethod):
         return ud.clonedir
 
     def need_update(self, ud, d):
-        return self.clonedir_need_update(ud, d) or self.shallow_tarball_need_update(ud) or self.tarball_need_update(ud)
+        return self.clonedir_need_update(ud, d) \
+                or self.shallow_tarball_need_update(ud) \
+                or self.tarball_need_update(ud) \
+                or self.lfs_need_update(ud, d)
 
     def clonedir_need_update(self, ud, d):
         if not os.path.exists(ud.clonedir):
@@ -322,6 +344,15 @@ class Git(FetchMethod):
                 return True
         return False
 
+    def lfs_need_update(self, ud, d):
+        if self.clonedir_need_update(ud, d):
+            return True
+
+        for name in ud.names:
+            if not self._lfs_objects_downloaded(ud, d, name, ud.clonedir):
+                return True
+        return False
+
     def clonedir_need_shallow_revs(self, ud, d):
         for rev in ud.shallow_revs:
             try:
@@ -341,6 +372,16 @@ class Git(FetchMethod):
         # is not possible
         if bb.utils.to_boolean(d.getVar("BB_FETCH_PREMIRRORONLY")):
             return True
+        # If the url is not in trusted network, that is, BB_NO_NETWORK is set to 0
+        # and BB_ALLOWED_NETWORKS does not contain the host that ud.url uses, then
+        # we need to try premirrors first as using upstream is destined to fail.
+        if not trusted_network(d, ud.url):
+            return True
+        # the following check is to ensure incremental fetch in downloads, this is
+        # because the premirror might be old and does not contain the new rev required,
+        # and this will cause a total removal and new clone. So if we can reach to
+        # network, we prefer upstream over premirror, though the premirror might contain
+        # the new rev.
         if os.path.exists(ud.clonedir):
             return False
         return True
@@ -361,12 +402,40 @@ class Git(FetchMethod):
             else:
                 tmpdir = tempfile.mkdtemp(dir=d.getVar('DL_DIR'))
                 runfetchcmd("tar -xzf %s" % ud.fullmirror, d, workdir=tmpdir)
-                fetch_cmd = "LANG=C %s fetch -f --progress %s " % (ud.basecmd, shlex.quote(tmpdir))
+                output = runfetchcmd("%s remote" % ud.basecmd, d, quiet=True, workdir=ud.clonedir)
+                if 'mirror' in output:
+                    runfetchcmd("%s remote rm mirror" % ud.basecmd, d, workdir=ud.clonedir)
+                runfetchcmd("%s remote add --mirror=fetch mirror %s" % (ud.basecmd, tmpdir), d, workdir=ud.clonedir)
+                fetch_cmd = "LANG=C %s fetch -f --update-head-ok  --progress mirror " % (ud.basecmd)
                 runfetchcmd(fetch_cmd, d, workdir=ud.clonedir)
         repourl = self._get_repo_url(ud)
 
+        needs_clone = False
+        if os.path.exists(ud.clonedir):
+            # The directory may exist, but not be the top level of a bare git
+            # repository in which case it needs to be deleted and re-cloned.
+            try:
+                # Since clones can be bare, use --absolute-git-dir instead of --show-toplevel
+                output = runfetchcmd("LANG=C %s rev-parse --absolute-git-dir" % ud.basecmd, d, workdir=ud.clonedir)
+                toplevel = output.rstrip()
+
+                if not bb.utils.path_is_descendant(toplevel, ud.clonedir):
+                    logger.warning("Top level directory '%s' is not a descendant of '%s'. Re-cloning", toplevel, ud.clonedir)
+                    needs_clone = True
+            except bb.fetch2.FetchError as e:
+                logger.warning("Unable to get top level for %s (not a git directory?): %s", ud.clonedir, e)
+                needs_clone = True
+            except FileNotFoundError as e:
+                logger.warning("%s", e)
+                needs_clone = True
+
+            if needs_clone:
+                shutil.rmtree(ud.clonedir)
+        else:
+            needs_clone = True
+
         # If the repo still doesn't exist, fallback to cloning it
-        if not os.path.exists(ud.clonedir):
+        if needs_clone:
             # We do this since git will use a "-l" option automatically for local urls where possible,
             # but it doesn't work when git/objects is a symlink, only works when it is a directory.
             if repourl.startswith("file://"):
@@ -378,6 +447,24 @@ class Git(FetchMethod):
             if ud.proto.lower() != 'file':
                 bb.fetch2.check_network_access(d, clone_cmd, ud.url)
             progresshandler = GitProgressHandler(d)
+
+            # Try creating a fast initial shallow clone
+            # Enabling ud.shallow_skip_fast will skip this
+            # If the Git error "Server does not allow request for unadvertised object"
+            # occurs, shallow_skip_fast is enabled automatically.
+            # This may happen if the Git server does not allow the request
+            # or if the Git client has issues with this functionality.
+            if ud.shallow and not ud.shallow_skip_fast:
+                try:
+                    self.clone_shallow_with_tarball(ud, d)
+                    # When the shallow clone has succeeded, use the shallow tarball
+                    ud.localpath = ud.fullshallow
+                    return
+                except:
+                    logger.warning("Creating fast initial shallow clone failed, try initial regular clone now.")
+
+            # When skipping fast initial shallow or the fast inital shallow clone failed:
+            # Try again with an initial regular clone
             runfetchcmd(clone_cmd, d, log=progresshandler)
 
         # Update the checkout if needed
@@ -414,7 +501,7 @@ class Git(FetchMethod):
             if missing_rev:
                 raise bb.fetch2.FetchError("Unable to find revision %s even from upstream" % missing_rev)
 
-        if self._contains_lfs(ud, d, ud.clonedir) and self._need_lfs(ud):
+        if self.lfs_need_update(ud, d):
             # Unpack temporary working copy, use it to run 'git checkout' to force pre-fetching
             # of all LFS blobs needed at the srcrev.
             #
@@ -437,64 +524,111 @@ class Git(FetchMethod):
                 # Only do this if the unpack resulted in a .git/lfs directory being
                 # created; this only happens if at least one blob needed to be
                 # downloaded.
-                if os.path.exists(os.path.join(tmpdir, "git", ".git", "lfs")):
-                    runfetchcmd("tar -cf - lfs | tar -xf - -C %s" % ud.clonedir, d, workdir="%s/git/.git" % tmpdir)
+                if os.path.exists(os.path.join(ud.destdir, ".git", "lfs")):
+                    runfetchcmd("tar -cf - lfs | tar -xf - -C %s" % ud.clonedir, d, workdir="%s/.git" % ud.destdir)
+
+    def lfs_fetch(self, ud, d, clonedir, revision, fetchall=False, progresshandler=None):
+        """Helper method for fetching Git LFS data"""
+        try:
+            if self._need_lfs(ud) and self._contains_lfs(ud, d, clonedir) and self._find_git_lfs(d) and len(revision):
+                # Using worktree with the revision because .lfsconfig may exists
+                worktree_add_cmd = "%s worktree add wt %s" % (ud.basecmd, revision)
+                runfetchcmd(worktree_add_cmd, d, log=progresshandler, workdir=clonedir)
+                lfs_fetch_cmd = "%s lfs fetch %s" % (ud.basecmd, "--all" if fetchall else "")
+                runfetchcmd(lfs_fetch_cmd, d, log=progresshandler, workdir=(clonedir + "/wt"))
+                worktree_rem_cmd = "%s worktree remove -f wt" % ud.basecmd
+                runfetchcmd(worktree_rem_cmd, d, log=progresshandler, workdir=clonedir)
+        except:
+            logger.warning("Fetching LFS did not succeed.")
+
+    @contextmanager
+    def create_atomic(self, filename):
+        """Create as a temp file and move atomically into position to avoid races"""
+        fd, tfile = tempfile.mkstemp(dir=os.path.dirname(filename))
+        try:
+            yield tfile
+            umask = os.umask(0o666)
+            os.umask(umask)
+            os.chmod(tfile, (0o666 & ~umask))
+            os.rename(tfile, filename)
+        finally:
+            os.close(fd)
 
     def build_mirror_data(self, ud, d):
-
-        # Create as a temp file and move atomically into position to avoid races
-        @contextmanager
-        def create_atomic(filename):
-            fd, tfile = tempfile.mkstemp(dir=os.path.dirname(filename))
-            try:
-                yield tfile
-                umask = os.umask(0o666)
-                os.umask(umask)
-                os.chmod(tfile, (0o666 & ~umask))
-                os.rename(tfile, filename)
-            finally:
-                os.close(fd)
-
         if ud.shallow and ud.write_shallow_tarballs:
             if not os.path.exists(ud.fullshallow):
                 if os.path.islink(ud.fullshallow):
                     os.unlink(ud.fullshallow)
-                tempdir = tempfile.mkdtemp(dir=d.getVar('DL_DIR'))
-                shallowclone = os.path.join(tempdir, 'git')
-                try:
-                    self.clone_shallow_local(ud, shallowclone, d)
-
-                    logger.info("Creating tarball of git repository")
-                    with create_atomic(ud.fullshallow) as tfile:
-                        runfetchcmd("tar -czf %s ." % tfile, d, workdir=shallowclone)
-                    runfetchcmd("touch %s.done" % ud.fullshallow, d)
-                finally:
-                    bb.utils.remove(tempdir, recurse=True)
+                self.clone_shallow_with_tarball(ud, d)
         elif ud.write_tarballs and not os.path.exists(ud.fullmirror):
             if os.path.islink(ud.fullmirror):
                 os.unlink(ud.fullmirror)
 
             logger.info("Creating tarball of git repository")
-            with create_atomic(ud.fullmirror) as tfile:
-                mtime = runfetchcmd("git log --all -1 --format=%cD", d,
+            with self.create_atomic(ud.fullmirror) as tfile:
+                mtime = runfetchcmd("{} log --all -1 --format=%cD".format(ud.basecmd), d,
                         quiet=True, workdir=ud.clonedir)
                 runfetchcmd("tar -czf %s --owner oe:0 --group oe:0 --mtime \"%s\" ."
                         % (tfile, mtime), d, workdir=ud.clonedir)
             runfetchcmd("touch %s.done" % ud.fullmirror, d)
 
+    def clone_shallow_with_tarball(self, ud, d):
+        ret = False
+        tempdir = tempfile.mkdtemp(dir=d.getVar('DL_DIR'))
+        shallowclone = os.path.join(tempdir, 'git')
+        try:
+            try:
+                self.clone_shallow_local(ud, shallowclone, d)
+            except:
+                logger.warning("Fash shallow clone failed, try to skip fast mode now.")
+                bb.utils.remove(tempdir, recurse=True)
+                os.mkdir(tempdir)
+                ud.shallow_skip_fast = True
+                self.clone_shallow_local(ud, shallowclone, d)
+            logger.info("Creating tarball of git repository")
+            with self.create_atomic(ud.fullshallow) as tfile:
+                runfetchcmd("tar -czf %s ." % tfile, d, workdir=shallowclone)
+            runfetchcmd("touch %s.done" % ud.fullshallow, d)
+            ret = True
+        finally:
+            bb.utils.remove(tempdir, recurse=True)
+
+        return ret
+
     def clone_shallow_local(self, ud, dest, d):
-        """Clone the repo and make it shallow.
+        """
+        Shallow fetch from ud.clonedir (${DL_DIR}/git2/<gitrepo> by default):
+        - For BB_GIT_SHALLOW_DEPTH: git fetch --depth <depth> rev
+        - For BB_GIT_SHALLOW_REVS: git fetch --shallow-exclude=<revs> rev
+        """
 
-        The upstream url of the new clone isn't set at this time, as it'll be
-        set correctly when unpacked."""
-        runfetchcmd("%s clone %s %s %s" % (ud.basecmd, ud.cloneflags, ud.clonedir, dest), d)
+        progresshandler = GitProgressHandler(d)
+        repourl = self._get_repo_url(ud)
+        bb.utils.mkdirhier(dest)
+        init_cmd = "%s init -q" % ud.basecmd
+        if ud.bareclone:
+            init_cmd += " --bare"
+        runfetchcmd(init_cmd, d, workdir=dest)
+        # Use repourl when creating a fast initial shallow clone
+        # Prefer already existing full bare clones if available
+        if not ud.shallow_skip_fast and not os.path.exists(ud.clonedir):
+            remote = shlex.quote(repourl)
+        else:
+            remote = ud.clonedir
+        runfetchcmd("%s remote add origin %s" % (ud.basecmd, remote), d, workdir=dest)
+
+        # Check the histories which should be excluded
+        shallow_exclude = ''
+        for revision in ud.shallow_revs:
+            shallow_exclude += " --shallow-exclude=%s" % revision
 
-        to_parse, shallow_branches = [], []
         for name in ud.names:
             revision = ud.revisions[name]
             depth = ud.shallow_depths[name]
-            if depth:
-                to_parse.append('%s~%d^{}' % (revision, depth - 1))
+
+            # The --depth and --shallow-exclude can't be used together
+            if depth and shallow_exclude:
+                raise bb.fetch2.FetchError("BB_GIT_SHALLOW_REVS is set, but BB_GIT_SHALLOW_DEPTH is not 0.")
 
             # For nobranch, we need a ref, otherwise the commits will be
             # removed, and for non-nobranch, we truncate the branch to our
@@ -507,36 +641,52 @@ class Git(FetchMethod):
             else:
                 ref = "refs/remotes/origin/%s" % branch
 
-            shallow_branches.append(ref)
+            fetch_cmd = "%s fetch origin %s" % (ud.basecmd, revision)
+            if depth:
+                fetch_cmd += " --depth %s" % depth
+
+            if shallow_exclude:
+                fetch_cmd += shallow_exclude
+
+            # Advertise the revision for lower version git such as 2.25.1:
+            # error: Server does not allow request for unadvertised object.
+            # The ud.clonedir is a local temporary dir, will be removed when
+            # fetch is done, so we can do anything on it.
+            adv_cmd = 'git branch -f advertise-%s %s' % (revision, revision)
+            if ud.shallow_skip_fast:
+                runfetchcmd(adv_cmd, d, workdir=ud.clonedir)
+
+            runfetchcmd(fetch_cmd, d, workdir=dest)
             runfetchcmd("%s update-ref %s %s" % (ud.basecmd, ref, revision), d, workdir=dest)
-
-        # Map srcrev+depths to revisions
-        parsed_depths = runfetchcmd("%s rev-parse %s" % (ud.basecmd, " ".join(to_parse)), d, workdir=dest)
-
-        # Resolve specified revisions
-        parsed_revs = runfetchcmd("%s rev-parse %s" % (ud.basecmd, " ".join('"%s^{}"' % r for r in ud.shallow_revs)), d, workdir=dest)
-        shallow_revisions = parsed_depths.splitlines() + parsed_revs.splitlines()
+            # Fetch Git LFS data for fast shallow clones
+            if not ud.shallow_skip_fast:
+                self.lfs_fetch(ud, d, dest, ud.revisions[ud.names[0]])
 
         # Apply extra ref wildcards
-        all_refs = runfetchcmd('%s for-each-ref "--format=%%(refname)"' % ud.basecmd,
-                               d, workdir=dest).splitlines()
+        all_refs_remote = runfetchcmd("%s ls-remote origin 'refs/*'" % ud.basecmd, \
+                                        d, workdir=dest).splitlines()
+        all_refs = []
+        for line in all_refs_remote:
+            all_refs.append(line.split()[-1])
+        extra_refs = []
         for r in ud.shallow_extra_refs:
             if not ud.bareclone:
                 r = r.replace('refs/heads/', 'refs/remotes/origin/')
 
             if '*' in r:
                 matches = filter(lambda a: fnmatch.fnmatchcase(a, r), all_refs)
-                shallow_branches.extend(matches)
+                extra_refs.extend(matches)
             else:
-                shallow_branches.append(r)
+                extra_refs.append(r)
 
-        # Make the repository shallow
-        shallow_cmd = [self.make_shallow_path, '-s']
-        for b in shallow_branches:
-            shallow_cmd.append('-r')
-            shallow_cmd.append(b)
-        shallow_cmd.extend(shallow_revisions)
-        runfetchcmd(subprocess.list2cmdline(shallow_cmd), d, workdir=dest)
+        for ref in extra_refs:
+            ref_fetch = os.path.basename(ref)
+            runfetchcmd("%s fetch origin --depth 1 %s" % (ud.basecmd, ref_fetch), d, workdir=dest)
+            revision = runfetchcmd("%s rev-parse FETCH_HEAD" % ud.basecmd, d, workdir=dest)
+            runfetchcmd("%s update-ref %s %s" % (ud.basecmd, ref, revision), d, workdir=dest)
+
+        # The url is local ud.clonedir, set it to upstream one
+        runfetchcmd("%s remote set-url origin %s" % (ud.basecmd, shlex.quote(repourl)), d, workdir=dest)
 
     def unpack(self, ud, destdir, d):
         """ unpack the downloaded src to destdir"""
@@ -564,6 +714,8 @@ class Git(FetchMethod):
         destdir = ud.destdir = os.path.join(destdir, destsuffix)
         if os.path.exists(destdir):
             bb.utils.prunedir(destdir)
+        if not ud.bareclone:
+            ud.unpack_tracer.unpack("git", destdir)
 
         need_lfs = self._need_lfs(ud)
 
@@ -602,6 +754,8 @@ class Git(FetchMethod):
                 raise bb.fetch2.FetchError("Repository %s has LFS content, install git-lfs on host to download (or set lfs=0 to ignore it)" % (repourl))
             elif not need_lfs:
                 bb.note("Repository %s has LFS content but it is not being fetched" % (repourl))
+            else:
+                runfetchcmd("%s lfs install --local" % ud.basecmd, d, workdir=destdir)
 
         if not ud.nocheckout:
             if subpath:
@@ -629,8 +783,13 @@ class Git(FetchMethod):
             clonedir = os.path.realpath(ud.localpath)
             to_remove.append(clonedir)
 
+        # Remove shallow mirror tarball
+        if ud.shallow:
+            to_remove.append(ud.fullshallow)
+            to_remove.append(ud.fullshallow + ".done")
+
         for r in to_remove:
-            if os.path.exists(r):
+            if os.path.exists(r) or os.path.islink(r):
                 bb.note('Removing %s' % r)
                 bb.utils.remove(r, True)
 
@@ -653,6 +812,35 @@ class Git(FetchMethod):
             raise bb.fetch2.FetchError("The command '%s' gave output with more then 1 line unexpectedly, output: '%s'" % (cmd, output))
         return output.split()[0] != "0"
 
+    def _lfs_objects_downloaded(self, ud, d, name, wd):
+        """
+        Verifies whether the LFS objects for requested revisions have already been downloaded
+        """
+        # Bail out early if this repository doesn't use LFS
+        if not self._need_lfs(ud) or not self._contains_lfs(ud, d, wd):
+            return True
+
+        # The Git LFS specification specifies ([1]) the LFS folder layout so it should be safe to check for file
+        # existence.
+        # [1] https://github.com/git-lfs/git-lfs/blob/main/docs/spec.md#intercepting-git
+        cmd = "%s lfs ls-files -l %s" \
+                % (ud.basecmd, ud.revisions[name])
+        output = runfetchcmd(cmd, d, quiet=True, workdir=wd).rstrip()
+        # Do not do any further matching if no objects are managed by LFS
+        if not output:
+            return True
+
+        # Match all lines beginning with the hexadecimal OID
+        oid_regex = re.compile("^(([a-fA-F0-9]{2})([a-fA-F0-9]{2})[A-Fa-f0-9]+)")
+        for line in output.split("\n"):
+            oid = re.search(oid_regex, line)
+            if not oid:
+                bb.warn("git lfs ls-files output '%s' did not match expected format." % line)
+            if not os.path.exists(os.path.join(wd, "lfs", "objects", oid.group(2), oid.group(3), oid.group(1))):
+                return False
+
+        return True
+
     def _need_lfs(self, ud):
         return ud.parm.get("lfs", "1") == "1"
 
@@ -661,8 +849,11 @@ class Git(FetchMethod):
         Check if the repository has 'lfs' (large file) content
         """
 
-        # The bare clonedir doesn't use the remote names; it has the branch immediately.
-        if wd == ud.clonedir:
+        if ud.nobranch:
+            # If no branch is specified, use the current git commit
+            refname = self._build_revision(ud, d, ud.names[0])
+        elif wd == ud.clonedir:
+            # The bare clonedir doesn't use the remote names; it has the branch immediately.
             refname = ud.branches[ud.names[0]]
         else:
             refname = "origin/%s" % ud.branches[ud.names[0]]
@@ -682,7 +873,6 @@ class Git(FetchMethod):
         """
         Return True if git-lfs can be found, False otherwise.
         """
-        import shutil
         return shutil.which("git-lfs", path=d.getVar('PATH')) is not None
 
     def _get_repo_url(self, ud):
@@ -767,38 +957,42 @@ class Git(FetchMethod):
         """
         pupver = ('', '')
 
-        tagregex = re.compile(d.getVar('UPSTREAM_CHECK_GITTAGREGEX') or r"(?P<pver>([0-9][\.|_]?)+)")
         try:
             output = self._lsremote(ud, d, "refs/tags/*")
         except (bb.fetch2.FetchError, bb.fetch2.NetworkAccess) as e:
             bb.note("Could not list remote: %s" % str(e))
             return pupver
 
+        rev_tag_re = re.compile(r"([0-9a-f]{40})\s+refs/tags/(.*)")
+        pver_re = re.compile(d.getVar('UPSTREAM_CHECK_GITTAGREGEX') or r"(?P<pver>([0-9][\.|_]?)+)")
+        nonrel_re = re.compile(r"(alpha|beta|rc|final)+")
+
         verstring = ""
-        revision = ""
         for line in output.split("\n"):
             if not line:
                 break
 
-            tag_head = line.split("/")[-1]
+            m = rev_tag_re.match(line)
+            if not m:
+                continue
+
+            (revision, tag) = m.groups()
+
             # Ignore non-released branches
-            m = re.search(r"(alpha|beta|rc|final)+", tag_head)
-            if m:
+            if nonrel_re.search(tag):
                 continue
 
             # search for version in the line
-            tag = tagregex.search(tag_head)
-            if tag is None:
+            m = pver_re.search(tag)
+            if not m:
                 continue
 
-            tag = tag.group('pver')
-            tag = tag.replace("_", ".")
+            pver = m.group('pver').replace("_", ".")
 
-            if verstring and bb.utils.vercmp(("0", tag, ""), ("0", verstring, "")) < 0:
+            if verstring and bb.utils.vercmp(("0", pver, ""), ("0", verstring, "")) < 0:
                 continue
 
-            verstring = tag
-            revision = line.split()[0]
+            verstring = pver
             pupver = (verstring, revision)
 
         return pupver
@@ -818,9 +1012,8 @@ class Git(FetchMethod):
             commits = None
         else:
             if not os.path.exists(rev_file) or not os.path.getsize(rev_file):
-                from pipes import quote
                 commits = bb.fetch2.runfetchcmd(
-                        "git rev-list %s -- | wc -l" % quote(rev),
+                        "git rev-list %s -- | wc -l" % shlex.quote(rev),
                         d, quiet=True).strip().lstrip('0')
                 if commits:
                     open(rev_file, "w").write("%d\n" % int(commits))

bitbake/lib/bb/fetch2/gitsm.py

@@ -123,6 +123,13 @@ class GitSM(Git):
             url += ";name=%s" % module
             url += ";subpath=%s" % module
             url += ";nobranch=1"
+            url += ";lfs=%s" % self._need_lfs(ud)
+            # Note that adding "user=" here to give credentials to the
+            # submodule is not supported. Since using SRC_URI to give git://
+            # URL a password is not supported, one have to use one of the
+            # recommended way (eg. ~/.netrc or SSH config) which does specify
+            # the user (See comment in git.py).
+            # So, we will not take patches adding "user=" support here.
 
             ld = d.createCopy()
             # Not necessary to set SRC_URI, since we're passing the URI to
@@ -140,6 +147,22 @@ class GitSM(Git):
 
         return submodules != []
 
+    def call_process_submodules(self, ud, d, extra_check, subfunc):
+        # If we're using a shallow mirror tarball it needs to be
+        # unpacked temporarily so that we can examine the .gitmodules file
+        # Unpack even when ud.clonedir is not available,
+        # which may occur during a fast shallow clone
+        unpack = extra_check or not os.path.exists(ud.clonedir)
+        if ud.shallow and os.path.exists(ud.fullshallow) and unpack:
+            tmpdir = tempfile.mkdtemp(dir=d.getVar("DL_DIR"))
+            try:
+                runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=tmpdir)
+                self.process_submodules(ud, tmpdir, subfunc, d)
+            finally:
+                shutil.rmtree(tmpdir)
+        else:
+            self.process_submodules(ud, ud.clonedir, subfunc, d)
+
     def need_update(self, ud, d):
         if Git.need_update(self, ud, d):
             return True
@@ -157,15 +180,7 @@ class GitSM(Git):
                 logger.error('gitsm: submodule update check failed: %s %s' % (type(e).__name__, str(e)))
                 need_update_result = True
 
-        # If we're using a shallow mirror tarball it needs to be unpacked
-        # temporarily so that we can examine the .gitmodules file
-        if ud.shallow and os.path.exists(ud.fullshallow) and not os.path.exists(ud.clonedir):
-            tmpdir = tempfile.mkdtemp(dir=d.getVar("DL_DIR"))
-            runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=tmpdir)
-            self.process_submodules(ud, tmpdir, need_update_submodule, d)
-            shutil.rmtree(tmpdir)
-        else:
-            self.process_submodules(ud, ud.clonedir, need_update_submodule, d)
+        self.call_process_submodules(ud, d, not os.path.exists(ud.clonedir), need_update_submodule)
 
         if need_update_list:
             logger.debug('gitsm: Submodules requiring update: %s' % (' '.join(need_update_list)))
@@ -188,16 +203,7 @@ class GitSM(Git):
                 raise
 
         Git.download(self, ud, d)
-
-        # If we're using a shallow mirror tarball it needs to be unpacked
-        # temporarily so that we can examine the .gitmodules file
-        if ud.shallow and os.path.exists(ud.fullshallow) and self.need_update(ud, d):
-            tmpdir = tempfile.mkdtemp(dir=d.getVar("DL_DIR"))
-            runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=tmpdir)
-            self.process_submodules(ud, tmpdir, download_submodule, d)
-            shutil.rmtree(tmpdir)
-        else:
-            self.process_submodules(ud, ud.clonedir, download_submodule, d)
+        self.call_process_submodules(ud, d, self.need_update(ud, d), download_submodule)
 
     def unpack(self, ud, destdir, d):
         def unpack_submodules(ud, url, module, modpath, workdir, d):
@@ -211,6 +217,10 @@ class GitSM(Git):
 
             try:
                 newfetch = Fetch([url], d, cache=False)
+                # modpath is needed by unpack tracer to calculate submodule
+                # checkout dir
+                new_ud = newfetch.ud[url]
+                new_ud.modpath = modpath
                 newfetch.unpack(root=os.path.dirname(os.path.join(repo_conf, 'modules', module)))
             except Exception as e:
                 logger.error('gitsm: submodule unpack failed: %s %s' % (type(e).__name__, str(e)))
@@ -236,13 +246,28 @@ class GitSM(Git):
         ret = self.process_submodules(ud, ud.destdir, unpack_submodules, d)
 
         if not ud.bareclone and ret:
-            # All submodules should already be downloaded and configured in the tree.  This simply sets
-            # up the configuration and checks out the files.  The main project config should remain
-            # unmodified, and no download from the internet should occur.
-            runfetchcmd("%s submodule update --recursive --no-fetch" % (ud.basecmd), d, quiet=True, workdir=ud.destdir)
+            # All submodules should already be downloaded and configured in the tree.  This simply
+            # sets up the configuration and checks out the files.  The main project config should
+            # remain unmodified, and no download from the internet should occur. As such, lfs smudge
+            # should also be skipped as these files were already smudged in the fetch stage if lfs
+            # was enabled.
+            runfetchcmd("GIT_LFS_SKIP_SMUDGE=1 %s submodule update --recursive --no-fetch" % (ud.basecmd), d, quiet=True, workdir=ud.destdir)
+    def clean(self, ud, d):
+        def clean_submodule(ud, url, module, modpath, workdir, d):
+            url += ";bareclone=1;nobranch=1"
+            try:
+                newfetch = Fetch([url], d, cache=False)
+                newfetch.clean()
+            except Exception as e:
+                logger.warning('gitsm: submodule clean failed: %s %s' % (type(e).__name__, str(e)))
+
+        self.call_process_submodules(ud, d, True, clean_submodule)
+
+        # Clean top git dir
+        Git.clean(self, ud, d)
 
     def implicit_urldata(self, ud, d):
-        import shutil, subprocess, tempfile
+        import subprocess
 
         urldata = []
         def add_submodule(ud, url, module, modpath, workdir, d):
@@ -250,14 +275,6 @@ class GitSM(Git):
             newfetch = Fetch([url], d, cache=False)
             urldata.extend(newfetch.expanded_urldata())
 
-        # If we're using a shallow mirror tarball it needs to be unpacked
-        # temporarily so that we can examine the .gitmodules file
-        if ud.shallow and os.path.exists(ud.fullshallow) and ud.method.need_update(ud, d):
-            tmpdir = tempfile.mkdtemp(dir=d.getVar("DL_DIR"))
-            subprocess.check_call("tar -xzf %s" % ud.fullshallow, cwd=tmpdir, shell=True)
-            self.process_submodules(ud, tmpdir, add_submodule, d)
-            shutil.rmtree(tmpdir)
-        else:
-            self.process_submodules(ud, ud.clonedir, add_submodule, d)
+        self.call_process_submodules(ud, d, ud.method.need_update(ud, d), add_submodule)
 
         return urldata

bitbake/lib/bb/fetch2/gomod.py

@@ -0,0 +1,265 @@
+"""
+BitBake 'Fetch' implementation for Go modules
+
+The gomod/gomodgit fetchers are used to download Go modules to the module cache
+from a module proxy or directly from a version control repository.
+
+Example SRC_URI:
+
+SRC_URI += "gomod://golang.org/x/net;version=v0.9.0;sha256sum=..."
+SRC_URI += "gomodgit://golang.org/x/net;version=v0.9.0;repo=go.googlesource.com/net;srcrev=..."
+
+Required SRC_URI parameters:
+
+- version
+    The version of the module.
+
+Optional SRC_URI parameters:
+
+- mod
+    Fetch and unpack the go.mod file only instead of the complete module.
+    The go command may need to download go.mod files for many different modules
+    when computing the build list, and go.mod files are much smaller than
+    module zip files.
+    The default is "0", set mod=1 for the go.mod file only.
+
+- sha256sum
+    The checksum of the module zip file, or the go.mod file in case of fetching
+    only the go.mod file. Alternatively, set the SRC_URI varible flag for
+    "module@version.sha256sum".
+
+- protocol
+    The method used when fetching directly from a version control repository.
+    The default is "https" for git.
+
+- repo
+    The URL when fetching directly from a version control repository. Required
+    when the URL is different from the module path.
+
+- srcrev
+    The revision identifier used when fetching directly from a version control
+    repository. Alternatively, set the SRCREV varible for "module@version".
+
+- subdir
+    The module subdirectory when fetching directly from a version control
+    repository. Required when the module is not located in the root of the
+    repository.
+
+Related variables:
+
+- GO_MOD_PROXY
+    The module proxy used by the fetcher.
+
+- GO_MOD_CACHE_DIR
+    The directory where the module cache is located.
+    This must match the exported GOMODCACHE variable for the go command to find
+    the downloaded modules.
+
+See the Go modules reference, https://go.dev/ref/mod, for more information
+about the module cache, module proxies and version control systems.
+"""
+
+import hashlib
+import os
+import re
+import shutil
+import subprocess
+import zipfile
+
+import bb
+from bb.fetch2 import FetchError
+from bb.fetch2 import MissingParameterError
+from bb.fetch2 import runfetchcmd
+from bb.fetch2 import subprocess_setup
+from bb.fetch2.git import Git
+from bb.fetch2.wget import Wget
+
+
+def escape(path):
+    """Escape capital letters using exclamation points."""
+    return re.sub(r'([A-Z])', lambda m: '!' + m.group(1).lower(), path)
+
+
+class GoMod(Wget):
+    """Class to fetch Go modules from a Go module proxy via wget"""
+
+    def supports(self, ud, d):
+        """Check to see if a given URL is for this fetcher."""
+        return ud.type == 'gomod'
+
+    def urldata_init(self, ud, d):
+        """Set up to download the module from the module proxy.
+
+        Set up to download the module zip file to the module cache directory
+        and unpack the go.mod file (unless downloading only the go.mod file):
+
+        cache/download/<module>/@v/<version>.zip: The module zip file.
+        cache/download/<module>/@v/<version>.mod: The go.mod file.
+        """
+
+        proxy = d.getVar('GO_MOD_PROXY') or 'proxy.golang.org'
+        moddir = d.getVar('GO_MOD_CACHE_DIR') or 'pkg/mod'
+
+        if 'version' not in ud.parm:
+            raise MissingParameterError('version', ud.url)
+
+        module = ud.host
+        if ud.path != '/':
+            module += ud.path
+        ud.parm['module'] = module
+
+        # Set URL and filename for wget download
+        path = escape(module + '/@v/' + ud.parm['version'])
+        if ud.parm.get('mod', '0') == '1':
+            path += '.mod'
+        else:
+            path += '.zip'
+            ud.parm['unpack'] = '0'
+        ud.url = bb.fetch2.encodeurl(
+            ('https', proxy, '/' + path, None, None, None))
+        ud.parm['downloadfilename'] = path
+
+        ud.parm['name'] = f"{module}@{ud.parm['version']}"
+
+        # Set subdir for unpack
+        ud.parm['subdir'] = os.path.join(moddir, 'cache/download',
+                                         os.path.dirname(path))
+
+        super().urldata_init(ud, d)
+
+    def unpack(self, ud, rootdir, d):
+        """Unpack the module in the module cache."""
+
+        # Unpack the module zip file or go.mod file
+        super().unpack(ud, rootdir, d)
+
+        if ud.localpath.endswith('.zip'):
+            # Unpack the go.mod file from the zip file
+            module = ud.parm['module']
+            unpackdir = os.path.join(rootdir, ud.parm['subdir'])
+            name = os.path.basename(ud.localpath).rsplit('.', 1)[0] + '.mod'
+            bb.note(f"Unpacking {name} to {unpackdir}/")
+            with zipfile.ZipFile(ud.localpath) as zf:
+                with open(os.path.join(unpackdir, name), mode='wb') as mf:
+                    try:
+                        f = module + '@' + ud.parm['version'] + '/go.mod'
+                        shutil.copyfileobj(zf.open(f), mf)
+                    except KeyError:
+                        # If the module does not have a go.mod file, synthesize
+                        # one containing only a module statement.
+                        mf.write(f'module {module}\n'.encode())
+
+
+class GoModGit(Git):
+    """Class to fetch Go modules directly from a git repository"""
+
+    def supports(self, ud, d):
+        """Check to see if a given URL is for this fetcher."""
+        return ud.type == 'gomodgit'
+
+    def urldata_init(self, ud, d):
+        """Set up to download the module from the git repository.
+
+        Set up to download the git repository to the module cache directory and
+        unpack the module zip file and the go.mod file:
+
+        cache/vcs/<hash>:                         The bare git repository.
+        cache/download/<module>/@v/<version>.zip: The module zip file.
+        cache/download/<module>/@v/<version>.mod: The go.mod file.
+        """
+
+        moddir = d.getVar('GO_MOD_CACHE_DIR') or 'pkg/mod'
+
+        if 'version' not in ud.parm:
+            raise MissingParameterError('version', ud.url)
+
+        module = ud.host
+        if ud.path != '/':
+            module += ud.path
+        ud.parm['module'] = module
+
+        # Set host, path and srcrev for git download
+        if 'repo' in ud.parm:
+            repo = ud.parm['repo']
+            idx = repo.find('/')
+            if idx != -1:
+                ud.host = repo[:idx]
+                ud.path = repo[idx:]
+            else:
+                ud.host = repo
+                ud.path = ''
+        if 'protocol' not in ud.parm:
+            ud.parm['protocol'] = 'https'
+        name = f"{module}@{ud.parm['version']}"
+        ud.names = [name]
+        srcrev = d.getVar('SRCREV_' + name)
+        if srcrev:
+            if 'srcrev' not in ud.parm:
+                ud.parm['srcrev'] = srcrev
+        else:
+            if 'srcrev' in ud.parm:
+                d.setVar('SRCREV_' + name, ud.parm['srcrev'])
+        if 'branch' not in ud.parm:
+            ud.parm['nobranch'] = '1'
+
+        # Set subpath, subdir and bareclone for git unpack
+        if 'subdir' in ud.parm:
+            ud.parm['subpath'] = ud.parm['subdir']
+        key = f"git3:{ud.parm['protocol']}://{ud.host}{ud.path}".encode()
+        ud.parm['key'] = key
+        ud.parm['subdir'] = os.path.join(moddir, 'cache/vcs',
+                                         hashlib.sha256(key).hexdigest())
+        ud.parm['bareclone'] = '1'
+
+        super().urldata_init(ud, d)
+
+    def unpack(self, ud, rootdir, d):
+        """Unpack the module in the module cache."""
+
+        # Unpack the bare git repository
+        super().unpack(ud, rootdir, d)
+
+        moddir = d.getVar('GO_MOD_CACHE_DIR') or 'pkg/mod'
+
+        # Create the info file
+        module = ud.parm['module']
+        repodir = os.path.join(rootdir, ud.parm['subdir'])
+        with open(repodir + '.info', 'wb') as f:
+            f.write(ud.parm['key'])
+
+        # Unpack the go.mod file from the repository
+        unpackdir = os.path.join(rootdir, moddir, 'cache/download',
+                                 escape(module), '@v')
+        bb.utils.mkdirhier(unpackdir)
+        srcrev = ud.parm['srcrev']
+        version = ud.parm['version']
+        escaped_version = escape(version)
+        cmd = f"git ls-tree -r --name-only '{srcrev}'"
+        if 'subpath' in ud.parm:
+            cmd += f" '{ud.parm['subpath']}'"
+        files = runfetchcmd(cmd, d, workdir=repodir).split()
+        name = escaped_version + '.mod'
+        bb.note(f"Unpacking {name} to {unpackdir}/")
+        with open(os.path.join(unpackdir, name), mode='wb') as mf:
+            f = 'go.mod'
+            if 'subpath' in ud.parm:
+                f = os.path.join(ud.parm['subpath'], f)
+            if f in files:
+                cmd = ['git', 'cat-file', 'blob', srcrev + ':' + f]
+                subprocess.check_call(cmd, stdout=mf, cwd=repodir,
+                                      preexec_fn=subprocess_setup)
+            else:
+                # If the module does not have a go.mod file, synthesize one
+                # containing only a module statement.
+                mf.write(f'module {module}\n'.encode())
+
+        # Synthesize the module zip file from the repository
+        name = escaped_version + '.zip'
+        bb.note(f"Unpacking {name} to {unpackdir}/")
+        with zipfile.ZipFile(os.path.join(unpackdir, name), mode='w') as zf:
+            prefix = module + '@' + version + '/'
+            for f in files:
+                cmd = ['git', 'cat-file', 'blob', srcrev + ':' + f]
+                data = subprocess.check_output(cmd, cwd=repodir,
+                                               preexec_fn=subprocess_setup)
+                zf.writestr(prefix + f, data)

bitbake/lib/bb/fetch2/hg.py

@@ -242,6 +242,7 @@ class Hg(FetchMethod):
         revflag = "-r %s" % ud.revision
         subdir = ud.parm.get("destsuffix", ud.module)
         codir = "%s/%s" % (destdir, subdir)
+        ud.unpack_tracer.unpack("hg", codir)
 
         scmdata = ud.parm.get("scmdata", "")
         if scmdata != "nokeep":

bitbake/lib/bb/fetch2/local.py

@@ -29,11 +29,10 @@ class Local(FetchMethod):
 
     def urldata_init(self, ud, d):
         # We don't set localfile as for this fetcher the file is already local!
-        ud.decodedurl = urllib.parse.unquote(ud.url.split("://")[1].split(";")[0])
-        ud.basename = os.path.basename(ud.decodedurl)
-        ud.basepath = ud.decodedurl
+        ud.basename = os.path.basename(ud.path)
+        ud.basepath = ud.path
         ud.needdonestamp = False
-        if "*" in ud.decodedurl:
+        if "*" in ud.path:
             raise bb.fetch2.ParameterError("file:// urls using globbing are no longer supported. Please place the files in a directory and reference that instead.", ud.url)
         return
 
@@ -41,21 +40,23 @@ class Local(FetchMethod):
         """
         Return the local filename of a given url assuming a successful fetch.
         """
-        return self.localpaths(urldata, d)[-1]
+        return self.localfile_searchpaths(urldata, d)[-1]
 
-    def localpaths(self, urldata, d):
+    def localfile_searchpaths(self, urldata, d):
         """
         Return the local filename of a given url assuming a successful fetch.
         """
         searched = []
-        path = urldata.decodedurl
+        path = urldata.path
         newpath = path
         if path[0] == "/":
+            logger.debug2("Using absolute %s" % (path))
             return [path]
         filespath = d.getVar('FILESPATH')
         if filespath:
             logger.debug2("Searching for %s in paths:\n    %s" % (path, "\n    ".join(filespath.split(":"))))
             newpath, hist = bb.utils.which(filespath, path, history=True)
+            logger.debug2("Using %s for %s" % (newpath, path))
             searched.extend(hist)
         return searched
 

bitbake/lib/bb/fetch2/npm.py

@@ -42,11 +42,15 @@ from bb.utils import is_semver
 
 def npm_package(package):
     """Convert the npm package name to remove unsupported character"""
-    # Scoped package names (with the @) use the same naming convention
-    # as the 'npm pack' command.
-    if package.startswith("@"):
-        return re.sub("/", "-", package[1:])
-    return package
+    # For scoped package names ('@user/package') the '/' is replaced by a '-'.
+    # This is similar to what 'npm pack' does, but 'npm pack' also strips the
+    # leading '@', which can lead to ambiguous package names.
+    name = re.sub("/", "-", package)
+    name = name.lower()
+    name = re.sub(r"[^\-a-z0-9@]", "", name)
+    name = name.strip("-")
+    return name
+
 
 def npm_filename(package, version):
     """Get the filename of a npm package"""
@@ -87,6 +91,12 @@ class NpmEnvironment(object):
         self.d = d
 
         self.user_config = tempfile.NamedTemporaryFile(mode="w", buffering=1)
+
+        hn = self._home_npmrc(d)
+        if hn is not None:
+            with open(hn, 'r') as hnf:
+                self.user_config.write(hnf.read())
+
         for key, value in configs:
             self.user_config.write("%s=%s\n" % (key, value))
 
@@ -99,10 +109,20 @@ class NpmEnvironment(object):
         if self.user_config:
             self.user_config.close()
 
+    def _home_npmrc(self, d):
+        """Function to return user's HOME .npmrc file (or None if it doesn't exist)"""
+        home_npmrc_file = os.path.join(os.environ.get("HOME"), ".npmrc")
+        if d.getVar("BB_USE_HOME_NPMRC") == "1" and os.path.exists(home_npmrc_file):
+            bb.warn(f"BB_USE_HOME_NPMRC flag set and valid .npmrc detected - "\
+                    f"npm fetcher will use {home_npmrc_file}")
+            return home_npmrc_file
+        return None
+
     def run(self, cmd, args=None, configs=None, workdir=None):
         """Run npm command in a controlled environment"""
         with tempfile.TemporaryDirectory() as tmpdir:
             d = bb.data.createCopy(self.d)
+            d.setVar("PATH", d.getVar("PATH"))  # PATH might contain $HOME - evaluate it before patching
             d.setVar("HOME", tmpdir)
 
             if not workdir:
@@ -161,7 +181,7 @@ class Npm(FetchMethod):
         # Using the 'downloadfilename' parameter as local filename
         # or the npm package name.
         if "downloadfilename" in ud.parm:
-            ud.localfile = npm_localfile(d.expand(ud.parm["downloadfilename"]))
+            ud.localfile = npm_localfile(ud.parm["downloadfilename"])
         else:
             ud.localfile = npm_localfile(ud.package, ud.version)
 
@@ -294,6 +314,7 @@ class Npm(FetchMethod):
         destsuffix = ud.parm.get("destsuffix", "npm")
         destdir = os.path.join(rootdir, destsuffix)
         npm_unpack(ud.localpath, destdir, d)
+        ud.unpack_tracer.unpack("npm", destdir)
 
     def clean(self, ud, d):
         """Clean any existing full or partial download"""

bitbake/lib/bb/fetch2/npmsw.py

@@ -37,24 +37,26 @@ def foreach_dependencies(shrinkwrap, callback=None, dev=False):
     """
         Run a callback for each dependencies of a shrinkwrap file.
         The callback is using the format:
-            callback(name, params, deptree)
+            callback(name, data, location)
         with:
             name = the package name (string)
-            params = the package parameters (dictionary)
-            deptree = the package dependency tree (array of strings)
+            data = the package data (dictionary)
+            location = the location of the package (string)
     """
-    def _walk_deps(deps, deptree):
-        for name in deps:
-            subtree = [*deptree, name]
-            _walk_deps(deps[name].get("dependencies", {}), subtree)
-            if callback is not None:
-                if deps[name].get("dev", False) and not dev:
-                    continue
-                elif deps[name].get("bundled", False):
-                    continue
-                callback(name, deps[name], subtree)
+    packages = shrinkwrap.get("packages")
+    if not packages:
+        raise FetchError("Invalid shrinkwrap file format")
 
-    _walk_deps(shrinkwrap.get("dependencies", {}), [])
+    for location, data in packages.items():
+        # Skip empty main and local link target packages
+        if not location.startswith('node_modules/'):
+            continue
+        elif not dev and data.get("dev", False):
+            continue
+        elif data.get("inBundle", False):
+            continue
+        name = location.split('node_modules/')[-1]
+        callback(name, data, location)
 
 class NpmShrinkWrap(FetchMethod):
     """Class to fetch all package from a shrinkwrap file"""
@@ -75,20 +77,24 @@ class NpmShrinkWrap(FetchMethod):
         # Resolve the dependencies
         ud.deps = []
 
-        def _resolve_dependency(name, params, deptree):
+        def _resolve_dependency(name, params, destsuffix):
             url = None
             localpath = None
             extrapaths = []
-            destsubdirs = [os.path.join("node_modules", dep) for dep in deptree]
-            destsuffix = os.path.join(*destsubdirs)
             unpack = True
 
-            integrity = params.get("integrity", None)
-            resolved = params.get("resolved", None)
-            version = params.get("version", None)
+            integrity = params.get("integrity")
+            resolved = params.get("resolved")
+            version = params.get("version")
+            link = params.get("link", False)
+
+            # Handle link sources
+            if link:
+                localpath = resolved
+                unpack = False
 
             # Handle registry sources
-            if is_semver(version) and integrity:
+            elif version and is_semver(version) and integrity:
                 # Handle duplicate dependencies without url
                 if not resolved:
                     return
@@ -116,10 +122,10 @@ class NpmShrinkWrap(FetchMethod):
                 extrapaths.append(resolvefile)
 
             # Handle http tarball sources
-            elif version.startswith("http") and integrity:
-                localfile = npm_localfile(os.path.basename(version))
+            elif resolved.startswith("http") and integrity:
+                localfile = npm_localfile(os.path.basename(resolved))
 
-                uri = URI(version)
+                uri = URI(resolved)
                 uri.params["downloadfilename"] = localfile
 
                 checksum_name, checksum_expected = npm_integrity(integrity)
@@ -129,28 +135,12 @@ class NpmShrinkWrap(FetchMethod):
 
                 localpath = os.path.join(d.getVar("DL_DIR"), localfile)
 
-            # Handle local tarball and link sources
-            elif version.startswith("file"):
-                localpath = version[5:]
-                if not version.endswith(".tgz"):
-                    unpack = False
+            # Handle local tarball sources
+            elif resolved.startswith("file"):
+                localpath = resolved[5:]
 
             # Handle git sources
-            elif version.startswith(("git", "bitbucket","gist")) or (
-                not version.endswith((".tgz", ".tar", ".tar.gz"))
-                and not version.startswith((".", "@", "/"))
-                and "/" in version
-            ):
-                if version.startswith("github:"):
-                    version = "git+https://github.com/" + version[len("github:"):]
-                elif version.startswith("gist:"):
-                    version = "git+https://gist.github.com/" + version[len("gist:"):]
-                elif version.startswith("bitbucket:"):
-                    version = "git+https://bitbucket.org/" + version[len("bitbucket:"):]
-                elif version.startswith("gitlab:"):
-                    version = "git+https://gitlab.com/" + version[len("gitlab:"):]
-                elif not version.startswith(("git+","git:")):
-                    version = "git+https://github.com/" + version
+            elif resolved.startswith("git"):
                 regex = re.compile(r"""
                     ^
                     git\+
@@ -162,16 +152,16 @@ class NpmShrinkWrap(FetchMethod):
                     $
                     """, re.VERBOSE)
 
-                match = regex.match(version)
-
+                match = regex.match(resolved)
                 if not match:
-                    raise ParameterError("Invalid git url: %s" % version, ud.url)
+                    raise ParameterError("Invalid git url: %s" % resolved, ud.url)
 
                 groups = match.groupdict()
 
                 uri = URI("git://" + str(groups["url"]))
                 uri.params["protocol"] = str(groups["protocol"])
                 uri.params["rev"] = str(groups["rev"])
+                uri.params["nobranch"] = "1"
                 uri.params["destsuffix"] = destsuffix
 
                 url = str(uri)
@@ -179,7 +169,9 @@ class NpmShrinkWrap(FetchMethod):
             else:
                 raise ParameterError("Unsupported dependency: %s" % name, ud.url)
 
+            # name is needed by unpack tracer for module mapping
             ud.deps.append({
+                "name": name,
                 "url": url,
                 "localpath": localpath,
                 "extrapaths": extrapaths,
@@ -213,13 +205,15 @@ class NpmShrinkWrap(FetchMethod):
     @staticmethod
     def _foreach_proxy_method(ud, handle):
         returns = []
-        for proxy_url in ud.proxy.urls:
-            proxy_ud = ud.proxy.ud[proxy_url]
-            proxy_d = ud.proxy.d
-            proxy_ud.setup_localpath(proxy_d)
-            lf = lockfile(proxy_ud.lockfile)
-            returns.append(handle(proxy_ud.method, proxy_ud, proxy_d))
-            unlockfile(lf)
+        #Check if there are dependencies before try to fetch them
+        if len(ud.deps) > 0:
+            for proxy_url in ud.proxy.urls:
+                proxy_ud = ud.proxy.ud[proxy_url]
+                proxy_d = ud.proxy.d
+                proxy_ud.setup_localpath(proxy_d)
+                lf = lockfile(proxy_ud.lockfile)
+                returns.append(handle(proxy_ud.method, proxy_ud, proxy_d))
+                unlockfile(lf)
         return returns
 
     def verify_donestamp(self, ud, d):
@@ -252,10 +246,11 @@ class NpmShrinkWrap(FetchMethod):
 
     def unpack(self, ud, rootdir, d):
         """Unpack the downloaded dependencies"""
-        destdir = d.getVar("S")
+        destdir = rootdir
         destsuffix = ud.parm.get("destsuffix")
         if destsuffix:
             destdir = os.path.join(rootdir, destsuffix)
+        ud.unpack_tracer.unpack("npm-shrinkwrap", destdir)
 
         bb.utils.mkdirhier(destdir)
         bb.utils.copyfile(ud.shrinkwrap_file,

bitbake/lib/bb/fetch2/s3.py

@@ -77,7 +77,7 @@ class S3(FetchMethod):
         else:
             ud.basename = os.path.basename(ud.path)
 
-        ud.localfile = d.expand(urllib.parse.unquote(ud.basename))
+        ud.localfile = ud.basename
 
         ud.basecmd = d.getVar("FETCHCMD_s3") or "/usr/bin/env aws s3"
 

bitbake/lib/bb/fetch2/sftp.py

@@ -77,7 +77,7 @@ class SFTP(FetchMethod):
         else:
             ud.basename = os.path.basename(ud.path)
 
-        ud.localfile = d.expand(urllib.parse.unquote(ud.basename))
+        ud.localfile = ud.basename
 
     def download(self, ud, d):
         """Fetch urls"""

bitbake/lib/bb/fetch2/ssh.py

@@ -73,8 +73,7 @@ class SSH(FetchMethod):
         path = m.group('path')
         path = urllib.parse.unquote(path)
         host = m.group('host')
-        urldata.localpath = os.path.join(d.getVar('DL_DIR'),
-                os.path.basename(os.path.normpath(path)))
+        urldata.localfile = os.path.basename(os.path.normpath(path))
 
     def download(self, urldata, d):
         dldir = d.getVar('DL_DIR')

bitbake/lib/bb/fetch2/svn.py

@@ -210,3 +210,6 @@ class Svn(FetchMethod):
 
     def _build_revision(self, ud, d):
         return ud.revision
+
+    def supports_checksum(self, urldata):
+        return False

bitbake/lib/bb/fetch2/wget.py

@@ -53,11 +53,6 @@ class WgetProgressHandler(bb.progress.LineFilterProgressHandler):
 class Wget(FetchMethod):
     """Class to fetch urls via 'wget'"""
 
-    # CDNs like CloudFlare may do a 'browser integrity test' which can fail
-    # with the standard wget/urllib User-Agent, so pretend to be a modern
-    # browser.
-    user_agent = "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0"
-
     def check_certs(self, d):
         """
         Should certificates be checked?
@@ -83,11 +78,14 @@ class Wget(FetchMethod):
         else:
             ud.basename = os.path.basename(ud.path)
 
-        ud.localfile = d.expand(urllib.parse.unquote(ud.basename))
+        ud.localfile = ud.basename
         if not ud.localfile:
-            ud.localfile = d.expand(urllib.parse.unquote(ud.host + ud.path).replace("/", "."))
+            ud.localfile = ud.host + ud.path.replace("/", ".")
 
-        self.basecmd = d.getVar("FETCHCMD_wget") or "/usr/bin/env wget -t 2 -T 30 --passive-ftp"
+        self.basecmd = d.getVar("FETCHCMD_wget") or "/usr/bin/env wget -t 2 -T 100"
+
+        if ud.type == 'ftp' or ud.type == 'ftps':
+            self.basecmd += " --passive-ftp"
 
         if not self.check_certs(d):
             self.basecmd += " --no-check-certificate"
@@ -105,7 +103,8 @@ class Wget(FetchMethod):
 
         fetchcmd = self.basecmd
 
-        localpath = os.path.join(d.getVar("DL_DIR"), ud.localfile) + ".tmp"
+        dldir = os.path.realpath(d.getVar("DL_DIR"))
+        localpath = os.path.join(dldir, ud.localfile) + ".tmp"
         bb.utils.mkdirhier(os.path.dirname(localpath))
         fetchcmd += " -O %s" % shlex.quote(localpath)
 
@@ -125,12 +124,21 @@ class Wget(FetchMethod):
         uri = ud.url.split(";")[0]
         if os.path.exists(ud.localpath):
             # file exists, but we didnt complete it.. trying again..
-            fetchcmd += d.expand(" -c -P ${DL_DIR} '%s'" % uri)
+            fetchcmd += " -c -P " + dldir + " '" + uri + "'"
         else:
-            fetchcmd += d.expand(" -P ${DL_DIR} '%s'" % uri)
+            fetchcmd += " -P " + dldir + " '" + uri + "'"
 
         self._runwget(ud, d, fetchcmd, False)
 
+        # Sanity check since wget can pretend it succeed when it didn't
+        # Also, this used to happen if sourceforge sent us to the mirror page
+        if not os.path.exists(localpath):
+            raise FetchError("The fetch command returned success for url %s but %s doesn't exist?!" % (uri, localpath), uri)
+
+        if os.path.getsize(localpath) == 0:
+            os.remove(localpath)
+            raise FetchError("The fetch of %s resulted in a zero size file?! Deleting and failing since this isn't right." % (uri), uri)
+
         # Try and verify any checksum now, meaning if it isn't correct, we don't remove the
         # original file, which might be a race (imagine two recipes referencing the same
         # source, one with an incorrect checksum)
@@ -140,15 +148,6 @@ class Wget(FetchMethod):
         # Our lock prevents multiple writers but mirroring code may grab incomplete files
         os.rename(localpath, localpath[:-4])
 
-        # Sanity check since wget can pretend it succeed when it didn't
-        # Also, this used to happen if sourceforge sent us to the mirror page
-        if not os.path.exists(ud.localpath):
-            raise FetchError("The fetch command returned success for url %s but %s doesn't exist?!" % (uri, ud.localpath), uri)
-
-        if os.path.getsize(ud.localpath) == 0:
-            os.remove(ud.localpath)
-            raise FetchError("The fetch of %s resulted in a zero size file?! Deleting and failing since this isn't right." % (uri), uri)
-
         return True
 
     def checkstatus(self, fetch, ud, d, try_again=True):
@@ -240,7 +239,12 @@ class Wget(FetchMethod):
                         fetch.connection_cache.remove_connection(h.host, h.port)
                     raise urllib.error.URLError(err)
                 else:
-                    r = h.getresponse()
+                    try:
+                        r = h.getresponse()
+                    except TimeoutError as e:
+                        if fetch.connection_cache:
+                            fetch.connection_cache.remove_connection(h.host, h.port)
+                        raise TimeoutError(e)
 
                 # Pick apart the HTTPResponse object to get the addinfourl
                 # object initialized properly.
@@ -301,13 +305,45 @@ class Wget(FetchMethod):
 
         class FixedHTTPRedirectHandler(urllib.request.HTTPRedirectHandler):
             """
-            urllib2.HTTPRedirectHandler resets the method to GET on redirect,
-            when we want to follow redirects using the original method.
+            urllib2.HTTPRedirectHandler before 3.13 has two flaws:
+            
+            It resets the method to GET on redirect when we want to follow
+            redirects using the original method (typically HEAD). This was fixed
+            in 759e8e7.
+
+            It also doesn't handle 308 (Permanent Redirect). This was fixed in
+            c379bc5.
+
+            Until we depend on Python 3.13 onwards, copy the redirect_request
+            method to fix these issues.
             """
             def redirect_request(self, req, fp, code, msg, headers, newurl):
-                newreq = urllib.request.HTTPRedirectHandler.redirect_request(self, req, fp, code, msg, headers, newurl)
-                newreq.get_method = req.get_method
-                return newreq
+                m = req.get_method()
+                if (not (code in (301, 302, 303, 307, 308) and m in ("GET", "HEAD")
+                    or code in (301, 302, 303) and m == "POST")):
+                    raise urllib.HTTPError(req.full_url, code, msg, headers, fp)
+
+                # Strictly (according to RFC 2616), 301 or 302 in response to
+                # a POST MUST NOT cause a redirection without confirmation
+                # from the user (of urllib.request, in this case).  In practice,
+                # essentially all clients do redirect in this case, so we do
+                # the same.
+
+                # Be conciliant with URIs containing a space.  This is mainly
+                # redundant with the more complete encoding done in http_error_302(),
+                # but it is kept for compatibility with other callers.
+                newurl = newurl.replace(' ', '%20')
+
+                CONTENT_HEADERS = ("content-length", "content-type")
+                newheaders = {k: v for k, v in req.headers.items()
+                            if k.lower() not in CONTENT_HEADERS}
+                return urllib.request.Request(newurl,
+                            method="HEAD" if m == "HEAD" else "GET",
+                            headers=newheaders,
+                            origin_req_host=req.origin_req_host,
+                            unverifiable=True)
+
+            http_error_308 = urllib.request.HTTPRedirectHandler.http_error_302
 
         # We need to update the environment here as both the proxy and HTTPS
         # handlers need variables set. The proxy needs http_proxy and friends to
@@ -340,14 +376,14 @@ class Wget(FetchMethod):
             opener = urllib.request.build_opener(*handlers)
 
             try:
-                uri_base = ud.url.split(";")[0]
-                uri = "{}://{}{}".format(urllib.parse.urlparse(uri_base).scheme, ud.host, ud.path)
+                parts = urllib.parse.urlparse(ud.url.split(";")[0])
+                uri = "{}://{}{}".format(parts.scheme, parts.netloc, parts.path)
                 r = urllib.request.Request(uri)
                 r.get_method = lambda: "HEAD"
                 # Some servers (FusionForge, as used on Alioth) require that the
                 # optional Accept header is set.
                 r.add_header("Accept", "*/*")
-                r.add_header("User-Agent", self.user_agent)
+                r.add_header("User-Agent", "bitbake/{}".format(bb.__version__))
                 def add_basic_auth(login_str, request):
                     '''Adds Basic auth to http request, pass in login:password as string'''
                     import base64
@@ -367,7 +403,7 @@ class Wget(FetchMethod):
                 except (FileNotFoundError, netrc.NetrcParseError):
                     pass
 
-                with opener.open(r, timeout=30) as response:
+                with opener.open(r, timeout=100) as response:
                     pass
             except (urllib.error.URLError, ConnectionResetError, TimeoutError) as e:
                 if try_again:
@@ -375,7 +411,7 @@ class Wget(FetchMethod):
                     return self.checkstatus(fetch, ud, d, False)
                 else:
                     # debug for now to avoid spamming the logs in e.g. remote sstate searches
-                    logger.debug2("checkstatus() urlopen failed: %s" % e)
+                    logger.debug2("checkstatus() urlopen failed for %s: %s" % (uri,e))
                     return False
 
         return True
@@ -454,7 +490,7 @@ class Wget(FetchMethod):
         f = tempfile.NamedTemporaryFile()
         with tempfile.TemporaryDirectory(prefix="wget-index-") as workdir, tempfile.NamedTemporaryFile(dir=workdir, prefix="wget-listing-") as f:
             fetchcmd = self.basecmd
-            fetchcmd += " -O " + f.name + " --user-agent='" + self.user_agent + "' '" + uri + "'"
+            fetchcmd += " -O " + f.name + " '" + uri + "'"
             try:
                 self._runwget(ud, d, fetchcmd, True, workdir=workdir)
                 fetchresult = f.read()

bitbake/lib/bb/main.py

@@ -217,7 +217,9 @@ def create_bitbake_parser():
                              "execution. The SIGNATURE_HANDLER parameter is passed to the "
                              "handler. Two common values are none and printdiff but the handler "
                              "may define more/less. none means only dump the signature, printdiff"
-                             " means compare the dumped signature with the cached one.")
+                             " means recursively compare the dumped signature with the most recent"
+                             " one in a local build or sstate cache (can be used to find out why tasks re-run"
+                             " when that is not expected)")
 
     exec_group.add_argument("--revisions-changed", action="store_true",
                         help="Set the exit code depending on whether upstream floating "

bitbake/lib/bb/msg.py

@@ -89,10 +89,6 @@ class BBLogFormatter(logging.Formatter):
             msg = logging.Formatter.format(self, record)
         if hasattr(record, 'bb_exc_formatted'):
             msg += '\n' + ''.join(record.bb_exc_formatted)
-        elif hasattr(record, 'bb_exc_info'):
-            etype, value, tb = record.bb_exc_info
-            formatted = bb.exceptions.format_exception(etype, value, tb, limit=5)
-            msg += '\n' + ''.join(formatted)
         return msg
 
     def colorize(self, record):
@@ -230,7 +226,7 @@ def logger_create(name, output=sys.stderr, level=logging.INFO, preserve_handlers
     console = logging.StreamHandler(output)
     console.addFilter(bb.msg.LogFilterShowOnce())
     format = bb.msg.BBLogFormatter("%(levelname)s: %(message)s")
-    if color == 'always' or (color == 'auto' and output.isatty()):
+    if color == 'always' or (color == 'auto' and output.isatty() and os.environ.get('NO_COLOR', '') == ''):
         format.enable_color()
     console.setFormatter(format)
     if preserve_handlers:

bitbake/lib/bb/parse/__init__.py

@@ -49,20 +49,32 @@ class SkipPackage(SkipRecipe):
 __mtime_cache = {}
 def cached_mtime(f):
     if f not in __mtime_cache:
-        __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
+        res = os.stat(f)
+        __mtime_cache[f] = (res.st_mtime_ns, res.st_size, res.st_ino)
     return __mtime_cache[f]
 
 def cached_mtime_noerror(f):
     if f not in __mtime_cache:
         try:
-            __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
+            res = os.stat(f)
+            __mtime_cache[f] = (res.st_mtime_ns, res.st_size, res.st_ino)
         except OSError:
             return 0
     return __mtime_cache[f]
 
+def check_mtime(f, mtime):
+    try:
+        res = os.stat(f)
+        current_mtime = (res.st_mtime_ns, res.st_size, res.st_ino)
+        __mtime_cache[f] = current_mtime
+    except OSError:
+        current_mtime = 0
+    return current_mtime == mtime
+
 def update_mtime(f):
     try:
-        __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
+        res = os.stat(f)
+        __mtime_cache[f] = (res.st_mtime_ns, res.st_size, res.st_ino)
     except OSError:
         if f in __mtime_cache:
             del __mtime_cache[f]

bitbake/lib/bb/parse/ast.py

@@ -43,6 +43,21 @@ class IncludeNode(AstNode):
         else:
             bb.parse.ConfHandler.include(self.filename, s, self.lineno, data, False)
 
+class IncludeAllNode(AstNode):
+    def __init__(self, filename, lineno, what_file):
+        AstNode.__init__(self, filename, lineno)
+        self.what_file = what_file
+
+    def eval(self, data):
+        """
+        Include the file and evaluate the statements
+        """
+        s = data.expand(self.what_file)
+        logger.debug2("CONF %s:%s: including %s", self.filename, self.lineno, s)
+
+        for path in data.getVar("BBPATH").split(":"):
+            bb.parse.ConfHandler.include(self.filename, os.path.join(path, s), self.lineno, data, False)
+
 class ExportNode(AstNode):
     def __init__(self, filename, lineno, var):
         AstNode.__init__(self, filename, lineno)
@@ -137,7 +152,10 @@ class DataNode(AstNode):
 
         flag = None
         if 'flag' in groupd and groupd['flag'] is not None:
-            flag = groupd['flag']
+            if groupd["lazyques"]:
+                flag = "_defaultval_flag_"+groupd['flag']
+            else:
+                flag = groupd['flag']
         elif groupd["lazyques"]:
             flag = "_defaultval"
 
@@ -211,10 +229,12 @@ class ExportFuncsNode(AstNode):
 
     def eval(self, data):
 
+        sentinel = "    # Export function set\n"
         for func in self.n:
             calledfunc = self.classname + "_" + func
 
-            if data.getVar(func, False) and not data.getVarFlag(func, 'export_func', False):
+            basevar = data.getVar(func, False)
+            if basevar and sentinel not in basevar:
                 continue
 
             if data.getVar(func, False):
@@ -231,22 +251,23 @@ class ExportFuncsNode(AstNode):
             data.setVarFlag(func, "lineno", 1)
 
             if data.getVarFlag(calledfunc, "python", False):
-                data.setVar(func, "    bb.build.exec_func('" + calledfunc + "', d)\n", parsing=True)
+                data.setVar(func, sentinel + "    bb.build.exec_func('" + calledfunc + "', d)\n", parsing=True)
             else:
                 if "-" in self.classname:
                    bb.fatal("The classname %s contains a dash character and is calling an sh function %s using EXPORT_FUNCTIONS. Since a dash is illegal in sh function names, this cannot work, please rename the class or don't use EXPORT_FUNCTIONS." % (self.classname, calledfunc))
-                data.setVar(func, "    " + calledfunc + "\n", parsing=True)
-            data.setVarFlag(func, 'export_func', '1')
+                data.setVar(func, sentinel + "    " + calledfunc + "\n", parsing=True)
 
 class AddTaskNode(AstNode):
-    def __init__(self, filename, lineno, func, before, after):
+    def __init__(self, filename, lineno, tasks, before, after):
         AstNode.__init__(self, filename, lineno)
-        self.func = func
+        self.tasks = tasks
         self.before = before
         self.after = after
 
     def eval(self, data):
-        bb.build.addtask(self.func, self.before, self.after, data)
+        tasks = self.tasks.split()
+        for task in tasks:
+            bb.build.addtask(task, self.before, self.after, data)
 
 class DelTaskNode(AstNode):
     def __init__(self, filename, lineno, tasks):
@@ -313,9 +334,59 @@ class InheritNode(AstNode):
     def eval(self, data):
         bb.parse.BBHandler.inherit(self.classes, self.filename, self.lineno, data)
 
+class InheritDeferredNode(AstNode):
+    def __init__(self, filename, lineno, classes):
+        AstNode.__init__(self, filename, lineno)
+        self.inherit = (classes, filename, lineno)
+
+    def eval(self, data):
+        inherits = data.getVar('__BBDEFINHERITS', False) or []
+        inherits.append(self.inherit)
+        data.setVar('__BBDEFINHERITS', inherits)
+
+class AddFragmentsNode(AstNode):
+    def __init__(self, filename, lineno, fragments_path_prefix, fragments_variable, flagged_variables_list_variable):
+        AstNode.__init__(self, filename, lineno)
+        self.fragments_path_prefix = fragments_path_prefix
+        self.fragments_variable = fragments_variable
+        self.flagged_variables_list_variable = flagged_variables_list_variable
+
+    def eval(self, data):
+        # No need to use mark_dependency since we would only match a fragment
+        # from a specific layer and there can only be a single layer with a
+        # given namespace.
+        def find_fragment(layers, layerid, full_fragment_name):
+           for layerpath in layers.split():
+               candidate_fragment_path = os.path.join(layerpath, full_fragment_name)
+               if os.path.exists(candidate_fragment_path) and bb.utils.get_file_layer(candidate_fragment_path, data) == layerid:
+                   return candidate_fragment_path
+           return None
+
+        fragments = data.getVar(self.fragments_variable)
+        layers = data.getVar('BBLAYERS')
+        flagged_variables = data.getVar(self.flagged_variables_list_variable).split()
+
+        if not fragments:
+            return
+        for f in fragments.split():
+            layerid, fragment_name = f.split('/', 1)
+            full_fragment_name = data.expand("{}/{}.conf".format(self.fragments_path_prefix, fragment_name))
+            fragment_path = find_fragment(layers, layerid, full_fragment_name)
+            if fragment_path:
+                bb.parse.ConfHandler.include(self.filename, fragment_path, self.lineno, data, "include fragment")
+                for flagged_var in flagged_variables:
+                    val = data.getVar(flagged_var)
+                    data.setVarFlag(flagged_var, f, val)
+                    data.setVar(flagged_var, None)
+            else:
+                bb.error("Could not find fragment {} in enabled layers: {}".format(f, layers))
+
 def handleInclude(statements, filename, lineno, m, force):
     statements.append(IncludeNode(filename, lineno, m.group(1), force))
 
+def handleIncludeAll(statements, filename, lineno, m):
+    statements.append(IncludeAllNode(filename, lineno, m.group(1)))
+
 def handleExport(statements, filename, lineno, m):
     statements.append(ExportNode(filename, lineno, m.group(1)))
 
@@ -337,21 +408,11 @@ def handlePythonMethod(statements, filename, lineno, funcname, modulename, body)
 def handleExportFuncs(statements, filename, lineno, m, classname):
     statements.append(ExportFuncsNode(filename, lineno, m.group(1), classname))
 
-def handleAddTask(statements, filename, lineno, m):
-    func = m.group("func")
-    before = m.group("before")
-    after = m.group("after")
-    if func is None:
-        return
+def handleAddTask(statements, filename, lineno, tasks, before, after):
+    statements.append(AddTaskNode(filename, lineno, tasks, before, after))
 
-    statements.append(AddTaskNode(filename, lineno, func, before, after))
-
-def handleDelTask(statements, filename, lineno, m):
-    func = m.group(1)
-    if func is None:
-        return
-
-    statements.append(DelTaskNode(filename, lineno, func))
+def handleDelTask(statements, filename, lineno, tasks):
+    statements.append(DelTaskNode(filename, lineno, tasks))
 
 def handleBBHandlers(statements, filename, lineno, m):
     statements.append(BBHandlerNode(filename, lineno, m.group(1)))
@@ -363,12 +424,46 @@ def handleInherit(statements, filename, lineno, m):
     classes = m.group(1)
     statements.append(InheritNode(filename, lineno, classes))
 
+def handleInheritDeferred(statements, filename, lineno, m):
+    classes = m.group(1)
+    statements.append(InheritDeferredNode(filename, lineno, classes))
+
+def handleAddFragments(statements, filename, lineno, m):
+    fragments_path_prefix = m.group(1)
+    fragments_variable = m.group(2)
+    flagged_variables_list_variable = m.group(3)
+    statements.append(AddFragmentsNode(filename, lineno, fragments_path_prefix, fragments_variable, flagged_variables_list_variable))
+
 def runAnonFuncs(d):
     code = []
     for funcname in d.getVar("__BBANONFUNCS", False) or []:
         code.append("%s(d)" % funcname)
     bb.utils.better_exec("\n".join(code), {"d": d})
 
+# Handle recipe level PREFERRED_PROVIDERs
+def handleVirtRecipeProviders(tasklist, d):
+    depends = (d.getVar("DEPENDS") or "").split()
+    virtprovs = (d.getVar("BB_RECIPE_VIRTUAL_PROVIDERS") or "").split()
+    newdeps = []
+    for dep in depends:
+        if dep in virtprovs:
+            newdep = d.getVar("PREFERRED_PROVIDER_" + dep)
+            if not newdep:
+                 bb.fatal("Error, recipe virtual provider PREFERRED_PROVIDER_%s not set" % dep)
+            newdeps.append(newdep)
+        else:
+            newdeps.append(dep)
+    d.setVar("DEPENDS", " ".join(newdeps))
+    for task in tasklist:
+        taskdeps = (d.getVarFlag(task, "depends") or "").split()
+        remapped = []
+        for entry in taskdeps:
+            r, t = entry.split(":")
+            if r in virtprovs:
+                r = d.getVar("PREFERRED_PROVIDER_" + r)
+            remapped.append("%s:%s" % (r, t))
+        d.setVarFlag(task, "depends", " ".join(remapped))
+
 def finalize(fn, d, variant = None):
     saved_handlers = bb.event.get_handlers().copy()
     try:
@@ -394,6 +489,7 @@ def finalize(fn, d, variant = None):
 
         tasklist = d.getVar('__BBTASKS', False) or []
         bb.event.fire(bb.event.RecipeTaskPreProcess(fn, list(tasklist)), d)
+        handleVirtRecipeProviders(tasklist, d)
         bb.build.add_tasks(tasklist, d)
 
         bb.parse.siggen.finalise(fn, d, variant)
@@ -429,6 +525,14 @@ def multi_finalize(fn, d):
         logger.debug("Appending .bbappend file %s to %s", append, fn)
         bb.parse.BBHandler.handle(append, d, True)
 
+    while True:
+        inherits = d.getVar('__BBDEFINHERITS', False) or []
+        if not inherits:
+            break
+        inherit, filename, lineno = inherits.pop(0)
+        d.setVar('__BBDEFINHERITS', inherits)
+        bb.parse.BBHandler.inherit(inherit, filename, lineno, d, deferred=True)
+
     onlyfinalise = d.getVar("__ONLYFINALISE", False)
 
     safe_d = d

bitbake/lib/bb/parse/parse_py/BBHandler.py

@@ -21,9 +21,10 @@ from .ConfHandler import include, init
 
 __func_start_regexp__    = re.compile(r"(((?P<py>python(?=(\s|\()))|(?P<fr>fakeroot(?=\s)))\s*)*(?P<func>[\w\.\-\+\{\}\$:]+)?\s*\(\s*\)\s*{$" )
 __inherit_regexp__       = re.compile(r"inherit\s+(.+)" )
+__inherit_def_regexp__   = re.compile(r"inherit_defer\s+(.+)" )
 __export_func_regexp__   = re.compile(r"EXPORT_FUNCTIONS\s+(.+)" )
-__addtask_regexp__       = re.compile(r"addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
-__deltask_regexp__       = re.compile(r"deltask\s+(.+)")
+__addtask_regexp__       = re.compile(r"addtask\s+([^#\n]+)(?P<comment>#.*|.*?)")
+__deltask_regexp__       = re.compile(r"deltask\s+([^#\n]+)(?P<comment>#.*|.*?)")
 __addhandler_regexp__    = re.compile(r"addhandler\s+(.+)" )
 __def_regexp__           = re.compile(r"def\s+(\w+).*:" )
 __python_func_regexp__   = re.compile(r"(\s+.*)|(^$)|(^#)" )
@@ -33,6 +34,7 @@ __infunc__ = []
 __inpython__ = False
 __body__   = []
 __classname__ = ""
+__residue__ = []
 
 cached_statements = {}
 
@@ -40,8 +42,10 @@ def supports(fn, d):
     """Return True if fn has a supported extension"""
     return os.path.splitext(fn)[-1] in [".bb", ".bbclass", ".inc"]
 
-def inherit(files, fn, lineno, d):
+def inherit(files, fn, lineno, d, deferred=False):
     __inherit_cache = d.getVar('__inherit_cache', False) or []
+    #if "${" in files and not deferred:
+    #    bb.warn("%s:%s has non deferred conditional inherit" % (fn, lineno))
     files = d.expand(files).split()
     for file in files:
         classtype = d.getVar("__bbclasstype", False)
@@ -77,7 +81,7 @@ def inherit(files, fn, lineno, d):
             __inherit_cache = d.getVar('__inherit_cache', False) or []
 
 def get_statements(filename, absolute_filename, base_name):
-    global cached_statements
+    global cached_statements, __residue__, __body__
 
     try:
         return cached_statements[absolute_filename]
@@ -97,6 +101,11 @@ def get_statements(filename, absolute_filename, base_name):
             # add a blank line to close out any python definition
             feeder(lineno, "", filename, base_name, statements, eof=True)
 
+        if __residue__:
+            raise ParseError("Unparsed lines %s: %s" % (filename, str(__residue__)), filename, lineno)
+        if __body__:
+            raise ParseError("Unparsed lines from unclosed function %s: %s" % (filename, str(__body__)), filename, lineno)
+
         if filename.endswith(".bbclass") or filename.endswith(".inc"):
             cached_statements[absolute_filename] = statements
         return statements
@@ -230,29 +239,38 @@ def feeder(lineno, s, fn, root, statements, eof=False):
 
     m = __addtask_regexp__.match(s)
     if m:
-        if len(m.group().split()) == 2:
-            # Check and warn for "addtask task1 task2"
-            m2 = re.match(r"addtask\s+(?P<func>\w+)(?P<ignores>.*)", s)
-            if m2 and m2.group('ignores'):
-                logger.warning('addtask ignored: "%s"' % m2.group('ignores'))
+        after = ""
+        before = ""
 
-        # Check and warn for "addtask task1 before task2 before task3", the
-        # similar to "after"
+        # This code splits on 'before' and 'after' instead of on whitespace so we can defer
+        # evaluation to as late as possible.
+        tasks = m.group(1).split(" before ")[0].split(" after ")[0]
+
+        for exp in m.group(1).split(" before "):
+            exp2 = exp.split(" after ")
+            if len(exp2) > 1:
+                after = after + " ".join(exp2[1:])
+
+        for exp in m.group(1).split(" after "):
+            exp2 = exp.split(" before ")
+            if len(exp2) > 1:
+                before = before + " ".join(exp2[1:])
+
+        # Check and warn for having task with a keyword as part of task name
         taskexpression = s.split()
-        for word in ('before', 'after'):
-            if taskexpression.count(word) > 1:
-                logger.warning("addtask contained multiple '%s' keywords, only one is supported" % word)
-
-        # Check and warn for having task with exprssion as part of task name
         for te in taskexpression:
             if any( ( "%s_" % keyword ) in te for keyword in bb.data_smart.__setvar_keyword__ ):
                 raise ParseError("Task name '%s' contains a keyword which is not recommended/supported.\nPlease rename the task not to include the keyword.\n%s" % (te, ("\n".join(map(str, bb.data_smart.__setvar_keyword__)))), fn)
-        ast.handleAddTask(statements, fn, lineno, m)
+
+        if tasks is not None:
+            ast.handleAddTask(statements, fn, lineno, tasks, before, after)
         return
 
     m = __deltask_regexp__.match(s)
     if m:
-        ast.handleDelTask(statements, fn, lineno, m)
+        task = m.group(1)
+        if task is not None:
+            ast.handleDelTask(statements, fn, lineno, task)
         return
 
     m = __addhandler_regexp__.match(s)
@@ -265,6 +283,11 @@ def feeder(lineno, s, fn, root, statements, eof=False):
         ast.handleInherit(statements, fn, lineno, m)
         return
 
+    m = __inherit_def_regexp__.match(s)
+    if m:
+        ast.handleInheritDeferred(statements, fn, lineno, m)
+        return
+
     return ConfHandler.feeder(lineno, s, fn, statements, conffile=False)
 
 # Add us to the handlers list

bitbake/lib/bb/parse/parse_py/ConfHandler.py

@@ -20,8 +20,8 @@ from bb.parse import ParseError, resolve_file, ast, logger, handle
 __config_regexp__  = re.compile( r"""
     ^
     (?P<exp>export\s+)?
-    (?P<var>[a-zA-Z0-9\-_+.${}/~:]+?)
-    (\[(?P<flag>[a-zA-Z0-9\-_+.][a-zA-Z0-9\-_+.@]*)\])?
+    (?P<var>[a-zA-Z0-9\-_+.${}/~:]*?)
+    (\[(?P<flag>[a-zA-Z0-9\-_+.][a-zA-Z0-9\-_+.@/]*)\])?
 
     \s* (
         (?P<colon>:=) |
@@ -43,10 +43,12 @@ __config_regexp__  = re.compile( r"""
     """, re.X)
 __include_regexp__ = re.compile( r"include\s+(.+)" )
 __require_regexp__ = re.compile( r"require\s+(.+)" )
+__includeall_regexp__ = re.compile( r"include_all\s+(.+)" )
 __export_regexp__ = re.compile( r"export\s+([a-zA-Z0-9\-_+.${}/~]+)$" )
 __unset_regexp__ = re.compile( r"unset\s+([a-zA-Z0-9\-_+.${}/~]+)$" )
 __unset_flag_regexp__ = re.compile( r"unset\s+([a-zA-Z0-9\-_+.${}/~]+)\[([a-zA-Z0-9\-_+.][a-zA-Z0-9\-_+.@]+)\]$" )
 __addpylib_regexp__      = re.compile(r"addpylib\s+(.+)\s+(.+)" )
+__addfragments_regexp__  = re.compile(r"addfragments\s+(.+)\s+(.+)\s+(.+)" )
 
 def init(data):
     return
@@ -164,6 +166,8 @@ def feeder(lineno, s, fn, statements, baseconfig=False, conffile=True):
     m = __config_regexp__.match(s)
     if m:
         groupd = m.groupdict()
+        if groupd['var'] == "":
+            raise ParseError("Empty variable name in assignment: '%s'" % s, fn, lineno);
         ast.handleData(statements, fn, lineno, groupd)
         return
 
@@ -177,6 +181,11 @@ def feeder(lineno, s, fn, statements, baseconfig=False, conffile=True):
         ast.handleInclude(statements, fn, lineno, m, True)
         return
 
+    m = __includeall_regexp__.match(s)
+    if m:
+        ast.handleIncludeAll(statements, fn, lineno, m)
+        return
+
     m = __export_regexp__.match(s)
     if m:
         ast.handleExport(statements, fn, lineno, m)
@@ -197,6 +206,11 @@ def feeder(lineno, s, fn, statements, baseconfig=False, conffile=True):
         ast.handlePyLib(statements, fn, lineno, m)
         return
 
+    m = __addfragments_regexp__.match(s)
+    if m:
+        ast.handleAddFragments(statements, fn, lineno, m)
+        return
+
     raise ParseError("unparsed line: '%s'" % s, fn, lineno);
 
 # Add us to the handlers list

bitbake/lib/bb/persist_data.py

@@ -1,271 +0,0 @@
-"""BitBake Persistent Data Store
-
-Used to store data in a central location such that other threads/tasks can
-access them at some future date.  Acts as a convenience wrapper around sqlite,
-currently, providing a key/value store accessed by 'domain'.
-"""
-
-# Copyright (C) 2007        Richard Purdie
-# Copyright (C) 2010        Chris Larson <chris_larson@mentor.com>
-#
-# SPDX-License-Identifier: GPL-2.0-only
-#
-
-import collections
-import collections.abc
-import contextlib
-import functools
-import logging
-import os.path
-import sqlite3
-import sys
-from collections.abc import Mapping
-
-sqlversion = sqlite3.sqlite_version_info
-if sqlversion[0] < 3 or (sqlversion[0] == 3 and sqlversion[1] < 3):
-    raise Exception("sqlite3 version 3.3.0 or later is required.")
-
-
-logger = logging.getLogger("BitBake.PersistData")
-
-@functools.total_ordering
-class SQLTable(collections.abc.MutableMapping):
-    class _Decorators(object):
-        @staticmethod
-        def retry(*, reconnect=True):
-            """
-            Decorator that restarts a function if a database locked sqlite
-            exception occurs. If reconnect is True, the database connection
-            will be closed and reopened each time a failure occurs
-            """
-            def retry_wrapper(f):
-                def wrap_func(self, *args, **kwargs):
-                    # Reconnect if necessary
-                    if self.connection is None and reconnect:
-                        self.reconnect()
-
-                    count = 0
-                    while True:
-                        try:
-                            return f(self, *args, **kwargs)
-                        except sqlite3.OperationalError as exc:
-                            if count < 500 and ('is locked' in str(exc) or 'locking protocol' in str(exc)):
-                                count = count + 1
-                                if reconnect:
-                                    self.reconnect()
-                                continue
-                            raise
-                return wrap_func
-            return retry_wrapper
-
-        @staticmethod
-        def transaction(f):
-            """
-            Decorator that starts a database transaction and creates a database
-            cursor for performing queries. If no exception is thrown, the
-            database results are committed. If an exception occurs, the database
-            is rolled back. In all cases, the cursor is closed after the
-            function ends.
-
-            Note that the cursor is passed as an extra argument to the function
-            after `self` and before any of the normal arguments
-            """
-            def wrap_func(self, *args, **kwargs):
-                # Context manager will COMMIT the database on success,
-                # or ROLLBACK on an exception
-                with self.connection:
-                    # Automatically close the cursor when done
-                    with contextlib.closing(self.connection.cursor()) as cursor:
-                        return f(self, cursor, *args, **kwargs)
-            return wrap_func
-
-    """Object representing a table/domain in the database"""
-    def __init__(self, cachefile, table):
-        self.cachefile = cachefile
-        self.table = table
-
-        self.connection = None
-        self._execute_single("CREATE TABLE IF NOT EXISTS %s(key TEXT PRIMARY KEY NOT NULL, value TEXT);" % table)
-
-    @_Decorators.retry(reconnect=False)
-    @_Decorators.transaction
-    def _setup_database(self, cursor):
-        cursor.execute("pragma synchronous = off;")
-        # Enable WAL and keep the autocheckpoint length small (the default is
-        # usually 1000). Persistent caches are usually read-mostly, so keeping
-        # this short will keep readers running quickly
-        cursor.execute("pragma journal_mode = WAL;")
-        cursor.execute("pragma wal_autocheckpoint = 100;")
-
-    def reconnect(self):
-        if self.connection is not None:
-            self.connection.close()
-        self.connection = sqlite3.connect(self.cachefile, timeout=5)
-        self.connection.text_factory = str
-        self._setup_database()
-
-    @_Decorators.retry()
-    @_Decorators.transaction
-    def _execute_single(self, cursor, *query):
-        """
-        Executes a single query and discards the results. This correctly closes
-        the database cursor when finished
-        """
-        cursor.execute(*query)
-
-    @_Decorators.retry()
-    def _row_iter(self, f, *query):
-        """
-        Helper function that returns a row iterator. Each time __next__ is
-        called on the iterator, the provided function is evaluated to determine
-        the return value
-        """
-        class CursorIter(object):
-            def __init__(self, cursor):
-                self.cursor = cursor
-
-            def __iter__(self):
-                return self
-
-            def __next__(self):
-                row = self.cursor.fetchone()
-                if row is None:
-                    self.cursor.close()
-                    raise StopIteration
-                return f(row)
-
-            def __enter__(self):
-                return self
-
-            def __exit__(self, typ, value, traceback):
-                self.cursor.close()
-                return False
-
-        cursor = self.connection.cursor()
-        try:
-            cursor.execute(*query)
-            return CursorIter(cursor)
-        except:
-            cursor.close()
-
-    def __enter__(self):
-        self.connection.__enter__()
-        return self
-
-    def __exit__(self, *excinfo):
-        self.connection.__exit__(*excinfo)
-
-    @_Decorators.retry()
-    @_Decorators.transaction
-    def __getitem__(self, cursor, key):
-        cursor.execute("SELECT * from %s where key=?;" % self.table, [key])
-        row = cursor.fetchone()
-        if row is not None:
-            return row[1]
-        raise KeyError(key)
-
-    @_Decorators.retry()
-    @_Decorators.transaction
-    def __delitem__(self, cursor, key):
-        if key not in self:
-            raise KeyError(key)
-        cursor.execute("DELETE from %s where key=?;" % self.table, [key])
-
-    @_Decorators.retry()
-    @_Decorators.transaction
-    def __setitem__(self, cursor, key, value):
-        if not isinstance(key, str):
-            raise TypeError('Only string keys are supported')
-        elif not isinstance(value, str):
-            raise TypeError('Only string values are supported')
-
-        # Ensure the entire transaction (including SELECT) executes under write lock
-        cursor.execute("BEGIN EXCLUSIVE")
-
-        cursor.execute("SELECT * from %s where key=?;" % self.table, [key])
-        row = cursor.fetchone()
-        if row is not None:
-            cursor.execute("UPDATE %s SET value=? WHERE key=?;" % self.table, [value, key])
-        else:
-            cursor.execute("INSERT into %s(key, value) values (?, ?);" % self.table, [key, value])
-
-    @_Decorators.retry()
-    @_Decorators.transaction
-    def __contains__(self, cursor, key):
-        cursor.execute('SELECT * from %s where key=?;' % self.table, [key])
-        return cursor.fetchone() is not None
-
-    @_Decorators.retry()
-    @_Decorators.transaction
-    def __len__(self, cursor):
-        cursor.execute("SELECT COUNT(key) FROM %s;" % self.table)
-        row = cursor.fetchone()
-        if row is not None:
-            return row[0]
-
-    def __iter__(self):
-        return self._row_iter(lambda row: row[0], "SELECT key from %s;" % self.table)
-
-    def __lt__(self, other):
-        if not isinstance(other, Mapping):
-            raise NotImplementedError()
-
-        return len(self) < len(other)
-
-    def get_by_pattern(self, pattern):
-        return self._row_iter(lambda row: row[1], "SELECT * FROM %s WHERE key LIKE ?;" %
-                              self.table, [pattern])
-
-    def values(self):
-        return list(self.itervalues())
-
-    def itervalues(self):
-        return self._row_iter(lambda row: row[0], "SELECT value FROM %s;" %
-                              self.table)
-
-    def items(self):
-        return list(self.iteritems())
-
-    def iteritems(self):
-        return self._row_iter(lambda row: (row[0], row[1]), "SELECT * FROM %s;" %
-                              self.table)
-
-    @_Decorators.retry()
-    @_Decorators.transaction
-    def clear(self, cursor):
-        cursor.execute("DELETE FROM %s;" % self.table)
-
-    def has_key(self, key):
-        return key in self
-
-def persist(domain, d):
-    """Convenience factory for SQLTable objects based upon metadata"""
-    import bb.utils
-    cachedir = (d.getVar("PERSISTENT_DIR") or
-                d.getVar("CACHE"))
-    if not cachedir:
-        logger.critical("Please set the 'PERSISTENT_DIR' or 'CACHE' variable")
-        sys.exit(1)
-
-    bb.utils.mkdirhier(cachedir)
-    cachefile = os.path.join(cachedir, "bb_persist_data.sqlite3")
-
-    try:
-        return SQLTable(cachefile, domain)
-    except sqlite3.OperationalError:
-        # Sqlite fails to open database when its path is too long.
-        # After testing, 504 is the biggest path length that can be opened by
-        # sqlite.
-        # Note: This code is called before sanity.bbclass and its path length
-        # check
-        max_len = 504
-        if len(cachefile) > max_len:
-            logger.critical("The path of the cache file is too long "
-                    "({0} chars > {1}) to be opened by sqlite! "
-                    "Your cache file is \"{2}\"".format(
-                        len(cachefile),
-                        max_len,
-                        cachefile))
-            sys.exit(1)
-        else:
-            raise

bitbake/lib/bb/runqueue.py

@@ -14,6 +14,7 @@ import os
 import sys
 import stat
 import errno
+import itertools
 import logging
 import re
 import bb
@@ -128,6 +129,7 @@ class RunQueueStats:
 # runQueue state machine
 runQueuePrepare = 2
 runQueueSceneInit = 3
+runQueueDumpSigs = 4
 runQueueRunning = 6
 runQueueFailed = 7
 runQueueCleanUp = 8
@@ -157,7 +159,7 @@ class RunQueueScheduler(object):
             (mc, fn, taskname, taskfn) = split_tid_mcfn(tid)
             self.stamps[tid] = bb.parse.siggen.stampfile_mcfn(taskname, taskfn, extrainfo=False)
             if tid in self.rq.runq_buildable:
-                self.buildable.append(tid)
+                self.buildable.add(tid)
 
         self.rev_prio_map = None
         self.is_pressure_usable()
@@ -200,19 +202,36 @@ class RunQueueScheduler(object):
                 curr_memory_pressure = memory_pressure_fds.readline().split()[4].split("=")[1]
                 now = time.time()
                 tdiff = now - self.prev_pressure_time
-                if tdiff > 1.0:
-                    exceeds_cpu_pressure =  self.rq.max_cpu_pressure and (float(curr_cpu_pressure) - float(self.prev_cpu_pressure)) / tdiff > self.rq.max_cpu_pressure
-                    exceeds_io_pressure =  self.rq.max_io_pressure and (float(curr_io_pressure) - float(self.prev_io_pressure)) / tdiff > self.rq.max_io_pressure
-                    exceeds_memory_pressure = self.rq.max_memory_pressure and (float(curr_memory_pressure) - float(self.prev_memory_pressure)) / tdiff > self.rq.max_memory_pressure
+                psi_accumulation_interval = 1.0
+                cpu_pressure = (float(curr_cpu_pressure) - float(self.prev_cpu_pressure)) / tdiff
+                io_pressure = (float(curr_io_pressure) - float(self.prev_io_pressure)) / tdiff
+                memory_pressure = (float(curr_memory_pressure) - float(self.prev_memory_pressure)) / tdiff
+                exceeds_cpu_pressure =  self.rq.max_cpu_pressure and cpu_pressure > self.rq.max_cpu_pressure
+                exceeds_io_pressure =  self.rq.max_io_pressure and io_pressure > self.rq.max_io_pressure
+                exceeds_memory_pressure =  self.rq.max_memory_pressure and memory_pressure > self.rq.max_memory_pressure
+
+                if tdiff > psi_accumulation_interval:
                     self.prev_cpu_pressure = curr_cpu_pressure
                     self.prev_io_pressure = curr_io_pressure
                     self.prev_memory_pressure = curr_memory_pressure
                     self.prev_pressure_time = now
-                else:
-                    exceeds_cpu_pressure =  self.rq.max_cpu_pressure and (float(curr_cpu_pressure) - float(self.prev_cpu_pressure)) > self.rq.max_cpu_pressure
-                    exceeds_io_pressure =  self.rq.max_io_pressure and (float(curr_io_pressure) - float(self.prev_io_pressure)) > self.rq.max_io_pressure
-                    exceeds_memory_pressure = self.rq.max_memory_pressure and (float(curr_memory_pressure) - float(self.prev_memory_pressure)) > self.rq.max_memory_pressure
+
+            pressure_state = (exceeds_cpu_pressure, exceeds_io_pressure, exceeds_memory_pressure)
+            pressure_values = (round(cpu_pressure,1), self.rq.max_cpu_pressure, round(io_pressure,1), self.rq.max_io_pressure, round(memory_pressure,1), self.rq.max_memory_pressure)
+            if hasattr(self, "pressure_state") and pressure_state != self.pressure_state:
+                bb.note("Pressure status changed to CPU: %s, IO: %s, Mem: %s (CPU: %s/%s, IO: %s/%s, Mem: %s/%s) - using %s/%s bitbake threads" % (pressure_state + pressure_values + (len(self.rq.runq_running.difference(self.rq.runq_complete)), self.rq.number_tasks)))
+            self.pressure_state = pressure_state
             return (exceeds_cpu_pressure or exceeds_io_pressure or exceeds_memory_pressure)
+        elif self.rq.max_loadfactor:
+            limit = False
+            loadfactor = float(os.getloadavg()[0]) / os.cpu_count()
+            # bb.warn("Comparing %s to %s" % (loadfactor, self.rq.max_loadfactor))
+            if loadfactor > self.rq.max_loadfactor:
+                limit = True
+            if hasattr(self, "loadfactor_limit") and limit != self.loadfactor_limit:
+                bb.note("Load average limiting set to %s as load average: %s - using %s/%s bitbake threads" % (limit, loadfactor, len(self.rq.runq_running.difference(self.rq.runq_complete)), self.rq.number_tasks))
+            self.loadfactor_limit = limit
+            return limit
         return False
 
     def next_buildable_task(self):
@@ -263,11 +282,11 @@ class RunQueueScheduler(object):
         best = None
         bestprio = None
         for tid in buildable:
-            taskname = taskname_from_tid(tid)
-            if taskname in skip_buildable and skip_buildable[taskname] >= int(self.skip_maxthread[taskname]):
-                continue
             prio = self.rev_prio_map[tid]
             if bestprio is None or bestprio > prio:
+                taskname = taskname_from_tid(tid)
+                if taskname in skip_buildable and skip_buildable[taskname] >= int(self.skip_maxthread[taskname]):
+                    continue
                 stamp = self.stamps[tid]
                 if stamp in self.rq.build_stamps.values():
                     continue
@@ -458,7 +477,6 @@ class RunQueueData:
         self.runtaskentries = {}
 
     def runq_depends_names(self, ids):
-        import re
         ret = []
         for id in ids:
             nam = os.path.basename(id)
@@ -711,6 +729,8 @@ class RunQueueData:
                 if mc == frommc:
                     fn = taskData[mcdep].build_targets[pn][0]
                     newdep = '%s:%s' % (fn,deptask)
+                    if newdep not in taskData[mcdep].taskentries:
+                        bb.fatal("Task mcdepends on non-existent task %s" % (newdep))
                     taskData[mc].taskentries[tid].tdepends.append(newdep)
 
         for mc in taskData:
@@ -997,25 +1017,32 @@ class RunQueueData:
         # Handle --runall
         if self.cooker.configuration.runall:
             # re-run the mark_active and then drop unused tasks from new list
-            reduced_tasklist = set(self.runtaskentries.keys())
-            for tid in list(self.runtaskentries.keys()):
-                if tid not in runq_build:
-                   reduced_tasklist.remove(tid)
-            runq_build = {}
 
-            for task in self.cooker.configuration.runall:
-                if not task.startswith("do_"):
-                    task = "do_{0}".format(task)
+            runall_tids = set()
+            added = True
+            while added:
+                reduced_tasklist = set(self.runtaskentries.keys())
+                for tid in list(self.runtaskentries.keys()):
+                    if tid not in runq_build:
+                       reduced_tasklist.remove(tid)
+                runq_build = {}
+
+                orig = runall_tids
                 runall_tids = set()
-                for tid in reduced_tasklist:
-                    wanttid = "{0}:{1}".format(fn_from_tid(tid), task)
-                    if wanttid in self.runtaskentries:
-                        runall_tids.add(wanttid)
+                for task in self.cooker.configuration.runall:
+                    if not task.startswith("do_"):
+                        task = "do_{0}".format(task)
+                    for tid in reduced_tasklist:
+                        wanttid = "{0}:{1}".format(fn_from_tid(tid), task)
+                        if wanttid in self.runtaskentries:
+                            runall_tids.add(wanttid)
 
-                for tid in list(runall_tids):
-                    mark_active(tid, 1)
-                    if self.cooker.configuration.force:
-                        invalidate_task(tid, False)
+                    for tid in list(runall_tids):
+                        mark_active(tid, 1)
+                        self.target_tids.append(tid)
+                        if self.cooker.configuration.force:
+                            invalidate_task(tid, False)
+                added = runall_tids - orig
 
         delcount = set()
         for tid in list(self.runtaskentries.keys()):
@@ -1249,27 +1276,41 @@ class RunQueueData:
 
         bb.parse.siggen.set_setscene_tasks(self.runq_setscene_tids)
 
+        starttime = time.time()
+        lasttime = starttime
+
         # Iterate over the task list and call into the siggen code
         dealtwith = set()
         todeal = set(self.runtaskentries)
         while todeal:
+            ready = set()
             for tid in todeal.copy():
                 if not (self.runtaskentries[tid].depends - dealtwith):
-                    dealtwith.add(tid)
-                    todeal.remove(tid)
-                    self.prepare_task_hash(tid)
-                bb.event.check_for_interrupts(self.cooker.data)
+                    self.runtaskentries[tid].taskhash_deps = bb.parse.siggen.prep_taskhash(tid, self.runtaskentries[tid].depends, self.dataCaches)
+                    # get_taskhash for a given tid *must* be called before get_unihash* below
+                    self.runtaskentries[tid].hash = bb.parse.siggen.get_taskhash(tid, self.runtaskentries[tid].depends, self.dataCaches)
+                    ready.add(tid)
+            unihashes = bb.parse.siggen.get_unihashes(ready)
+            for tid in ready:
+                dealtwith.add(tid)
+                todeal.remove(tid)
+                self.runtaskentries[tid].unihash = unihashes[tid]
+
+            bb.event.check_for_interrupts(self.cooker.data)
+
+            if time.time() > (lasttime + 30):
+                lasttime = time.time()
+                hashequiv_logger.verbose("Initial setup loop progress: %s of %s in %s" % (len(todeal), len(self.runtaskentries), lasttime - starttime))
+
+        endtime = time.time()
+        if (endtime-starttime > 60):
+            hashequiv_logger.verbose("Initial setup loop took: %s" % (endtime-starttime))
 
         bb.parse.siggen.writeout_file_checksum_cache()
 
         #self.dump_data()
         return len(self.runtaskentries)
 
-    def prepare_task_hash(self, tid):
-        bb.parse.siggen.prep_taskhash(tid, self.runtaskentries[tid].depends, self.dataCaches)
-        self.runtaskentries[tid].hash = bb.parse.siggen.get_taskhash(tid, self.runtaskentries[tid].depends, self.dataCaches)
-        self.runtaskentries[tid].unihash = bb.parse.siggen.get_unihash(tid)
-
     def dump_data(self):
         """
         Dump some debug information on the internal data structures
@@ -1311,24 +1352,36 @@ class RunQueue:
         self.worker = {}
         self.fakeworker = {}
 
+    @staticmethod
+    def send_pickled_data(worker, data, name):
+        msg = bytearray()
+        msg.extend(b"<" + name.encode() + b">")
+        pickled_data = pickle.dumps(data)
+        msg.extend(len(pickled_data).to_bytes(4, 'big'))
+        msg.extend(pickled_data)
+        msg.extend(b"</" + name.encode() + b">")
+        worker.stdin.write(msg)
+
     def _start_worker(self, mc, fakeroot = False, rqexec = None):
         logger.debug("Starting bitbake-worker")
         magic = "decafbad"
         if self.cooker.configuration.profile:
             magic = "decafbadbad"
         fakerootlogs = None
+
+        workerscript = os.path.realpath(os.path.dirname(__file__) + "/../../bin/bitbake-worker")
         if fakeroot:
             magic = magic + "beef"
             mcdata = self.cooker.databuilder.mcdata[mc]
             fakerootcmd = shlex.split(mcdata.getVar("FAKEROOTCMD"))
             fakerootenv = (mcdata.getVar("FAKEROOTBASEENV") or "").split()
             env = os.environ.copy()
-            for key, value in (var.split('=') for var in fakerootenv):
+            for key, value in (var.split('=',1) for var in fakerootenv):
                 env[key] = value
-            worker = subprocess.Popen(fakerootcmd + ["bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE, env=env)
+            worker = subprocess.Popen(fakerootcmd + [sys.executable, workerscript, magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE, env=env)
             fakerootlogs = self.rqdata.dataCaches[mc].fakerootlogs
         else:
-            worker = subprocess.Popen(["bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
+            worker = subprocess.Popen([sys.executable, workerscript, magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
         bb.utils.nonblockingfd(worker.stdout)
         workerpipe = runQueuePipe(worker.stdout, None, self.cfgData, self, rqexec, fakerootlogs=fakerootlogs)
 
@@ -1346,9 +1399,9 @@ class RunQueue:
             "umask" : self.cfgData.getVar("BB_DEFAULT_UMASK"),
         }
 
-        worker.stdin.write(b"<cookerconfig>" + pickle.dumps(self.cooker.configuration) + b"</cookerconfig>")
-        worker.stdin.write(b"<extraconfigdata>" + pickle.dumps(self.cooker.extraconfigdata) + b"</extraconfigdata>")
-        worker.stdin.write(b"<workerdata>" + pickle.dumps(workerdata) + b"</workerdata>")
+        RunQueue.send_pickled_data(worker, self.cooker.configuration, "cookerconfig")
+        RunQueue.send_pickled_data(worker, self.cooker.extraconfigdata, "extraconfigdata")
+        RunQueue.send_pickled_data(worker, workerdata, "workerdata")
         worker.stdin.flush()
 
         return RunQueueWorker(worker, workerpipe)
@@ -1358,7 +1411,7 @@ class RunQueue:
             return
         logger.debug("Teardown for bitbake-worker")
         try:
-           worker.process.stdin.write(b"<quit></quit>")
+           RunQueue.send_pickled_data(worker.process, b"", "quit")
            worker.process.stdin.flush()
            worker.process.stdin.close()
         except IOError:
@@ -1370,12 +1423,12 @@ class RunQueue:
             continue
         worker.pipe.close()
 
-    def start_worker(self):
+    def start_worker(self, rqexec):
         if self.worker:
             self.teardown_workers()
         self.teardown = False
         for mc in self.rqdata.dataCaches:
-            self.worker[mc] = self._start_worker(mc)
+            self.worker[mc] = self._start_worker(mc, False, rqexec)
 
     def start_fakeworker(self, rqexec, mc):
         if not mc in self.fakeworker:
@@ -1535,21 +1588,27 @@ class RunQueue:
                                          ('bb.event.HeartbeatEvent',), data=self.cfgData)
                  self.dm_event_handler_registered = True
 
-            dump = self.cooker.configuration.dump_signatures
-            if dump:
+            self.rqdata.init_progress_reporter.next_stage()
+            self.rqexe = RunQueueExecute(self)
+
+            dumpsigs = self.cooker.configuration.dump_signatures
+            if dumpsigs:
                 self.rqdata.init_progress_reporter.finish()
-                if 'printdiff' in dump:
-                    invalidtasks = self.print_diffscenetasks()
-                self.dump_signatures(dump)
-                if 'printdiff' in dump:
-                    self.write_diffscenetasks(invalidtasks)
+                if 'printdiff' in dumpsigs:
+                    self.invalidtasks_dump = self.print_diffscenetasks()
+                self.state = runQueueDumpSigs
+
+        if self.state is runQueueDumpSigs:
+            dumpsigs = self.cooker.configuration.dump_signatures
+            retval = self.dump_signatures(dumpsigs)
+            if retval is False:
+                if 'printdiff' in dumpsigs:
+                    self.write_diffscenetasks(self.invalidtasks_dump)
                 self.state = runQueueComplete
 
         if self.state is runQueueSceneInit:
-            self.rqdata.init_progress_reporter.next_stage()
-            self.start_worker()
-            self.rqdata.init_progress_reporter.next_stage()
-            self.rqexe = RunQueueExecute(self)
+            self.start_worker(self.rqexe)
+            self.rqdata.init_progress_reporter.finish()
 
             # If we don't have any setscene functions, skip execution
             if not self.rqdata.runq_setscene_tids:
@@ -1635,35 +1694,55 @@ class RunQueue:
             bb.parse.siggen.dump_sigtask(taskfn, taskname, dataCaches[mc].stamp[taskfn], True)
 
     def dump_signatures(self, options):
-        if bb.cooker.CookerFeatures.RECIPE_SIGGEN_INFO not in self.cooker.featureset:
-            bb.fatal("The dump signatures functionality needs the RECIPE_SIGGEN_INFO feature enabled")
+        if not hasattr(self, "dumpsigs_launched"):
+            if bb.cooker.CookerFeatures.RECIPE_SIGGEN_INFO not in self.cooker.featureset:
+                bb.fatal("The dump signatures functionality needs the RECIPE_SIGGEN_INFO feature enabled")
 
-        bb.note("Writing task signature files")
+            bb.note("Writing task signature files")
 
-        max_process = int(self.cfgData.getVar("BB_NUMBER_PARSE_THREADS") or os.cpu_count() or 1)
-        def chunkify(l, n):
-            return [l[i::n] for i in range(n)]
-        tids = chunkify(list(self.rqdata.runtaskentries), max_process)
-        # We cannot use the real multiprocessing.Pool easily due to some local data
-        # that can't be pickled. This is a cheap multi-process solution.
-        launched = []
-        while tids:
-            if len(launched) < max_process:
-                p = Process(target=self._rq_dump_sigtid, args=(tids.pop(), ))
+            max_process = int(self.cfgData.getVar("BB_NUMBER_PARSE_THREADS") or os.cpu_count() or 1)
+            def chunkify(l, n):
+                return [l[i::n] for i in range(n)]
+            dumpsigs_tids = chunkify(list(self.rqdata.runtaskentries), max_process)
+
+            # We cannot use the real multiprocessing.Pool easily due to some local data
+            # that can't be pickled. This is a cheap multi-process solution.
+            self.dumpsigs_launched = []
+
+            for tids in dumpsigs_tids:
+                p = Process(target=self._rq_dump_sigtid, args=(tids, ))
                 p.start()
-                launched.append(p)
-            for q in launched:
-                # The finished processes are joined when calling is_alive()
-                if not q.is_alive():
-                    launched.remove(q)
-        for p in launched:
+                self.dumpsigs_launched.append(p)
+
+            return 1.0
+
+        for q in self.dumpsigs_launched:
+            # The finished processes are joined when calling is_alive()
+            if not q.is_alive():
+                self.dumpsigs_launched.remove(q)
+
+        if self.dumpsigs_launched:
+            return 1.0
+
+        for p in self.dumpsigs_launched:
                 p.join()
 
         bb.parse.siggen.dump_sigs(self.rqdata.dataCaches, options)
 
-        return
+        return False
 
     def print_diffscenetasks(self):
+        def get_root_invalid_tasks(task, taskdepends, valid, noexec, visited_invalid):
+            invalidtasks = []
+            for t in taskdepends[task].depends:
+                if t not in valid and t not in visited_invalid:
+                    invalidtasks.extend(get_root_invalid_tasks(t, taskdepends, valid, noexec, visited_invalid))
+                    visited_invalid.add(t)
+
+            direct_invalid = [t for t in taskdepends[task].depends if t not in valid]
+            if not direct_invalid and task not in noexec:
+                invalidtasks = [task]
+            return invalidtasks
 
         noexec = []
         tocheck = set()
@@ -1697,46 +1776,49 @@ class RunQueue:
                     valid_new.add(dep)
 
         invalidtasks = set()
-        for tid in self.rqdata.runtaskentries:
-            if tid not in valid_new and tid not in noexec:
-                invalidtasks.add(tid)
 
-        found = set()
-        processed = set()
-        for tid in invalidtasks:
+        toptasks = set(["{}:{}".format(t[3], t[2]) for t in self.rqdata.targets])
+        for tid in toptasks:
             toprocess = set([tid])
             while toprocess:
                 next = set()
+                visited_invalid = set()
                 for t in toprocess:
-                    for dep in self.rqdata.runtaskentries[t].depends:
-                        if dep in invalidtasks:
-                            found.add(tid)
-                        if dep not in processed:
-                            processed.add(dep)
+                    if t not in valid_new and t not in noexec:
+                        invalidtasks.update(get_root_invalid_tasks(t, self.rqdata.runtaskentries, valid_new, noexec, visited_invalid))
+                        continue
+                    if t in self.rqdata.runq_setscene_tids:
+                        for dep in self.rqexe.sqdata.sq_deps[t]:
                             next.add(dep)
+                        continue
+
+                    for dep in self.rqdata.runtaskentries[t].depends:
+                        next.add(dep)
+
                 toprocess = next
-                if tid in found:
-                    toprocess = set()
 
         tasklist = []
-        for tid in invalidtasks.difference(found):
+        for tid in invalidtasks:
             tasklist.append(tid)
 
         if tasklist:
             bb.plain("The differences between the current build and any cached tasks start at the following tasks:\n" + "\n".join(tasklist))
 
-        return invalidtasks.difference(found)
+        return invalidtasks
 
     def write_diffscenetasks(self, invalidtasks):
+        bb.siggen.check_siggen_version(bb.siggen)
 
         # Define recursion callback
         def recursecb(key, hash1, hash2):
             hashes = [hash1, hash2]
+            bb.debug(1, "Recursively looking for recipe {} hashes {}".format(key, hashes))
             hashfiles = bb.siggen.find_siginfo(key, None, hashes, self.cfgData)
+            bb.debug(1, "Found hashfiles:\n{}".format(hashfiles))
 
             recout = []
             if len(hashfiles) == 2:
-                out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb)
+                out2 = bb.siggen.compare_sigfiles(hashfiles[hash1]['path'], hashfiles[hash2]['path'], recursecb)
                 recout.extend(list('    ' + l for l in out2))
             else:
                 recout.append("Unable to find matching sigdata for %s with hashes %s or %s" % (key, hash1, hash2))
@@ -1747,20 +1829,25 @@ class RunQueue:
         for tid in invalidtasks:
             (mc, fn, taskname, taskfn) = split_tid_mcfn(tid)
             pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn]
-            h = self.rqdata.runtaskentries[tid].hash
+            h = self.rqdata.runtaskentries[tid].unihash
+            bb.debug(1, "Looking for recipe {} task {}".format(pn, taskname))
             matches = bb.siggen.find_siginfo(pn, taskname, [], self.cooker.databuilder.mcdata[mc])
+            bb.debug(1, "Found hashfiles:\n{}".format(matches))
             match = None
-            for m in matches:
-                if h in m:
-                    match = m
+            for m in matches.values():
+                if h in m['path']:
+                    match = m['path']
             if match is None:
-                bb.fatal("Can't find a task we're supposed to have written out? (hash: %s)?" % h)
+                bb.fatal("Can't find a task we're supposed to have written out? (hash: %s tid: %s)?" % (h, tid))
             matches = {k : v for k, v in iter(matches.items()) if h not in k}
+            matches_local = {k : v for k, v in iter(matches.items()) if h not in k and not v['sstate']}
+            if matches_local:
+                matches = matches_local
             if matches:
-                latestmatch = sorted(matches.keys(), key=lambda f: matches[f])[-1]
+                latestmatch = matches[sorted(matches.keys(), key=lambda h: matches[h]['time'])[-1]]['path']
                 prevh = __find_sha256__.search(latestmatch).group(0)
                 output = bb.siggen.compare_sigfiles(latestmatch, match, recursecb)
-                bb.plain("\nTask %s:%s couldn't be used from the cache because:\n  We need hash %s, closest matching task was %s\n  " % (pn, taskname, h, prevh) + '\n  '.join(output))
+                bb.plain("\nTask %s:%s couldn't be used from the cache because:\n  We need hash %s, most recent matching task was %s\n  " % (pn, taskname, h, prevh) + '\n  '.join(output))
 
 
 class RunQueueExecute:
@@ -1776,6 +1863,7 @@ class RunQueueExecute:
         self.max_cpu_pressure = self.cfgData.getVar("BB_PRESSURE_MAX_CPU")
         self.max_io_pressure = self.cfgData.getVar("BB_PRESSURE_MAX_IO")
         self.max_memory_pressure = self.cfgData.getVar("BB_PRESSURE_MAX_MEMORY")
+        self.max_loadfactor = self.cfgData.getVar("BB_LOADFACTOR_MAX")
 
         self.sq_buildable = set()
         self.sq_running = set()
@@ -1793,6 +1881,8 @@ class RunQueueExecute:
         self.build_stamps2 = []
         self.failed_tids = []
         self.sq_deferred = {}
+        self.sq_needed_harddeps = set()
+        self.sq_harddep_deferred = set()
 
         self.stampcache = {}
 
@@ -1802,11 +1892,6 @@ class RunQueueExecute:
 
         self.stats = RunQueueStats(len(self.rqdata.runtaskentries), len(self.rqdata.runq_setscene_tids))
 
-        for mc in rq.worker:
-            rq.worker[mc].pipe.setrunqueueexec(self)
-        for mc in rq.fakeworker:
-            rq.fakeworker[mc].pipe.setrunqueueexec(self)
-
         if self.number_tasks <= 0:
              bb.fatal("Invalid BB_NUMBER_THREADS %s" % self.number_tasks)
 
@@ -1832,6 +1917,11 @@ class RunQueueExecute:
                 bb.fatal("Invalid BB_PRESSURE_MAX_MEMORY %s, minimum value is %s." % (self.max_memory_pressure, lower_limit))
             if self.max_memory_pressure > upper_limit:
                 bb.warn("Your build will be largely unregulated since BB_PRESSURE_MAX_MEMORY is set to %s. It is very unlikely that such high pressure will be experienced." % (self.max_io_pressure))
+
+        if self.max_loadfactor:
+            self.max_loadfactor = float(self.max_loadfactor)
+            if self.max_loadfactor <= 0:
+                bb.fatal("Invalid BB_LOADFACTOR_MAX %s, needs to be greater than zero." % (self.max_loadfactor))
             
         # List of setscene tasks which we've covered
         self.scenequeue_covered = set()
@@ -1842,11 +1932,6 @@ class RunQueueExecute:
         self.tasks_notcovered = set()
         self.scenequeue_notneeded = set()
 
-        # We can't skip specified target tasks which aren't setscene tasks
-        self.cantskip = set(self.rqdata.target_tids)
-        self.cantskip.difference_update(self.rqdata.runq_setscene_tids)
-        self.cantskip.intersection_update(self.rqdata.runtaskentries)
-
         schedulers = self.get_schedulers()
         for scheduler in schedulers:
             if self.scheduler == scheduler.name:
@@ -1859,7 +1944,25 @@ class RunQueueExecute:
 
         #if self.rqdata.runq_setscene_tids:
         self.sqdata = SQData()
-        build_scenequeue_data(self.sqdata, self.rqdata, self.rq, self.cooker, self.stampcache, self)
+        build_scenequeue_data(self.sqdata, self.rqdata, self)
+
+        update_scenequeue_data(self.sqdata.sq_revdeps, self.sqdata, self.rqdata, self.rq, self.cooker, self.stampcache, self, summary=True)
+
+        # Compute a list of 'stale' sstate tasks where the current hash does not match the one
+        # in any stamp files. Pass the list out to metadata as an event.
+        found = {}
+        for tid in self.rqdata.runq_setscene_tids:
+            (mc, fn, taskname, taskfn) = split_tid_mcfn(tid)
+            stamps = bb.build.find_stale_stamps(taskname, taskfn)
+            if stamps:
+                if mc not in found:
+                    found[mc] = {}
+                found[mc][tid] = stamps
+        for mc in found:
+            event = bb.event.StaleSetSceneTasks(found[mc])
+            bb.event.fire(event, self.cooker.databuilder.mcdata[mc])
+
+        self.build_taskdepdata_cache()
 
     def runqueue_process_waitpid(self, task, status, fakerootlog=None):
 
@@ -1885,14 +1988,14 @@ class RunQueueExecute:
     def finish_now(self):
         for mc in self.rq.worker:
             try:
-                self.rq.worker[mc].process.stdin.write(b"<finishnow></finishnow>")
+                RunQueue.send_pickled_data(self.rq.worker[mc].process, b"", "finishnow")
                 self.rq.worker[mc].process.stdin.flush()
             except IOError:
                 # worker must have died?
                 pass
         for mc in self.rq.fakeworker:
             try:
-                self.rq.fakeworker[mc].process.stdin.write(b"<finishnow></finishnow>")
+                RunQueue.send_pickled_data(self.rq.fakeworker[mc].process, b"", "finishnow")
                 self.rq.fakeworker[mc].process.stdin.flush()
             except IOError:
                 # worker must have died?
@@ -1997,12 +2100,12 @@ class RunQueueExecute:
                 # Allow the next deferred task to run. Any other deferred tasks should be deferred after that task.
                 # We shouldn't allow all to run at once as it is prone to races.
                 if not found:
-                    bb.note("Deferred task %s now buildable" % t)
+                    bb.debug(1, "Deferred task %s now buildable" % t)
                     del self.sq_deferred[t]
                     update_scenequeue_data([t], self.sqdata, self.rqdata, self.rq, self.cooker, self.stampcache, self, summary=False)
                     found = t
                 else:
-                    bb.note("Deferring %s after %s" % (t, found))
+                    bb.debug(1, "Deferring %s after %s" % (t, found))
                     self.sq_deferred[t] = found
 
     def task_complete(self, task):
@@ -2103,13 +2206,24 @@ class RunQueueExecute:
         if not hasattr(self, "sorted_setscene_tids"):
             # Don't want to sort this set every execution
             self.sorted_setscene_tids = sorted(self.rqdata.runq_setscene_tids)
+            # Resume looping where we left off when we returned to feed the mainloop
+            self.setscene_tids_generator = itertools.cycle(self.rqdata.runq_setscene_tids)
 
         task = None
         if not self.sqdone and self.can_start_task():
-            # Find the next setscene to run
-            for nexttask in self.sorted_setscene_tids:
-                if nexttask in self.sq_buildable and nexttask not in self.sq_running and self.sqdata.stamps[nexttask] not in self.build_stamps.values():
-                    if nexttask not in self.sqdata.unskippable and self.sqdata.sq_revdeps[nexttask] and self.sqdata.sq_revdeps[nexttask].issubset(self.scenequeue_covered) and self.check_dependencies(nexttask, self.sqdata.sq_revdeps[nexttask]):
+            loopcount = 0
+            # Find the next setscene to run, exit the loop when we've processed all tids or found something to execute
+            while loopcount < len(self.rqdata.runq_setscene_tids):
+                loopcount += 1
+                nexttask = next(self.setscene_tids_generator)
+                if nexttask in self.sq_buildable and nexttask not in self.sq_running and self.sqdata.stamps[nexttask] not in self.build_stamps.values() and nexttask not in self.sq_harddep_deferred:
+                    if nexttask in self.sq_deferred and self.sq_deferred[nexttask] not in self.runq_complete:
+                        # Skip deferred tasks quickly before the 'expensive' tests below - this is key to performant multiconfig builds
+                        continue
+                    if nexttask not in self.sqdata.unskippable and self.sqdata.sq_revdeps[nexttask] and \
+                            nexttask not in self.sq_needed_harddeps and \
+                            self.sqdata.sq_revdeps[nexttask].issubset(self.scenequeue_covered) and \
+                            self.check_dependencies(nexttask, self.sqdata.sq_revdeps[nexttask]):
                         if nexttask not in self.rqdata.target_tids:
                             logger.debug2("Skipping setscene for task %s" % nexttask)
                             self.sq_task_skip(nexttask)
@@ -2117,13 +2231,25 @@ class RunQueueExecute:
                             if nexttask in self.sq_deferred:
                                 del self.sq_deferred[nexttask]
                             return True
+                    if nexttask in self.sqdata.sq_harddeps_rev and not self.sqdata.sq_harddeps_rev[nexttask].issubset(self.scenequeue_covered | self.scenequeue_notcovered):
+                        logger.debug2("Deferring %s due to hard dependencies" % nexttask)
+                        updated = False
+                        for dep in self.sqdata.sq_harddeps_rev[nexttask]:
+                            if dep not in self.sq_needed_harddeps:
+                                logger.debug2("Enabling task %s as it is a hard dependency" % dep)
+                                self.sq_buildable.add(dep)
+                                self.sq_needed_harddeps.add(dep)
+                                updated = True
+                        self.sq_harddep_deferred.add(nexttask)
+                        if updated:
+                            return True
+                        continue
                     # If covered tasks are running, need to wait for them to complete
                     for t in self.sqdata.sq_covered_tasks[nexttask]:
                         if t in self.runq_running and t not in self.runq_complete:
                             continue
                     if nexttask in self.sq_deferred:
-                        if self.sq_deferred[nexttask] not in self.runq_complete:
-                            continue
+                        # Deferred tasks that were still deferred were skipped above so we now need to process
                         logger.debug("Task %s no longer deferred" % nexttask)
                         del self.sq_deferred[nexttask]
                         valid = self.rq.validate_hashes(set([nexttask]), self.cooker.data, 0, False, summary=False)
@@ -2166,6 +2292,7 @@ class RunQueueExecute:
             bb.event.fire(startevent, self.cfgData)
 
             taskdep = self.rqdata.dataCaches[mc].task_deps[taskfn]
+            realfn = bb.cache.virtualfn2realfn(taskfn)[0]
             runtask = {
                 'fn' : taskfn,
                 'task' : task,
@@ -2174,6 +2301,7 @@ class RunQueueExecute:
                 'unihash' : self.rqdata.get_task_unihash(task),
                 'quieterrors' : True,
                 'appends' : self.cooker.collections[mc].get_file_appends(taskfn),
+                'layername' : self.cooker.collections[mc].calc_bbfile_priority(realfn)[2],
                 'taskdepdata' : self.sq_build_taskdepdata(task),
                 'dry_run' : False,
                 'taskdep': taskdep,
@@ -2185,10 +2313,10 @@ class RunQueueExecute:
             if 'fakeroot' in taskdep and taskname in taskdep['fakeroot'] and not self.cooker.configuration.dry_run:
                 if not mc in self.rq.fakeworker:
                     self.rq.start_fakeworker(self, mc)
-                self.rq.fakeworker[mc].process.stdin.write(b"<runtask>" + pickle.dumps(runtask) + b"</runtask>")
+                RunQueue.send_pickled_data(self.rq.fakeworker[mc].process, runtask, "runtask")
                 self.rq.fakeworker[mc].process.stdin.flush()
             else:
-                self.rq.worker[mc].process.stdin.write(b"<runtask>" + pickle.dumps(runtask) + b"</runtask>")
+                RunQueue.send_pickled_data(self.rq.worker[mc].process, runtask, "runtask")
                 self.rq.worker[mc].process.stdin.flush()
 
             self.build_stamps[task] = bb.parse.siggen.stampfile_mcfn(taskname, taskfn, extrainfo=False)
@@ -2259,6 +2387,7 @@ class RunQueueExecute:
                 bb.event.fire(startevent, self.cfgData)
 
             taskdep = self.rqdata.dataCaches[mc].task_deps[taskfn]
+            realfn = bb.cache.virtualfn2realfn(taskfn)[0]
             runtask = {
                 'fn' : taskfn,
                 'task' : task,
@@ -2267,6 +2396,7 @@ class RunQueueExecute:
                 'unihash' : self.rqdata.get_task_unihash(task),
                 'quieterrors' : False,
                 'appends' : self.cooker.collections[mc].get_file_appends(taskfn),
+                'layername' : self.cooker.collections[mc].calc_bbfile_priority(realfn)[2],
                 'taskdepdata' : self.build_taskdepdata(task),
                 'dry_run' : self.rqdata.setscene_enforce,
                 'taskdep': taskdep,
@@ -2284,10 +2414,10 @@ class RunQueueExecute:
                         self.rq.state = runQueueFailed
                         self.stats.taskFailed()
                         return True
-                self.rq.fakeworker[mc].process.stdin.write(b"<runtask>" + pickle.dumps(runtask) + b"</runtask>")
+                RunQueue.send_pickled_data(self.rq.fakeworker[mc].process, runtask, "runtask")
                 self.rq.fakeworker[mc].process.stdin.flush()
             else:
-                self.rq.worker[mc].process.stdin.write(b"<runtask>" + pickle.dumps(runtask) + b"</runtask>")
+                RunQueue.send_pickled_data(self.rq.worker[mc].process, runtask, "runtask")
                 self.rq.worker[mc].process.stdin.flush()
 
             self.build_stamps[task] = bb.parse.siggen.stampfile_mcfn(taskname, taskfn, extrainfo=False)
@@ -2341,6 +2471,25 @@ class RunQueueExecute:
             ret.add(dep)
         return ret
 
+    # Build the individual cache entries in advance once to save time
+    def build_taskdepdata_cache(self):
+        taskdepdata_cache = {}
+        for task in self.rqdata.runtaskentries:
+            (mc, fn, taskname, taskfn) = split_tid_mcfn(task)
+            taskdepdata_cache[task] = bb.TaskData(
+                pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn],
+                taskname = taskname,
+                fn = fn,
+                deps = self.filtermcdeps(task, mc, self.rqdata.runtaskentries[task].depends),
+                provides = self.rqdata.dataCaches[mc].fn_provides[taskfn],
+                taskhash = self.rqdata.runtaskentries[task].hash,
+                unihash = self.rqdata.runtaskentries[task].unihash,
+                hashfn = self.rqdata.dataCaches[mc].hashfn[taskfn],
+                taskhash_deps = self.rqdata.runtaskentries[task].taskhash_deps,
+            )
+
+        self.taskdepdata_cache = taskdepdata_cache
+
     # We filter out multiconfig dependencies from taskdepdata we pass to the tasks
     # as most code can't handle them
     def build_taskdepdata(self, task):
@@ -2352,15 +2501,11 @@ class RunQueueExecute:
         while next:
             additional = []
             for revdep in next:
-                (mc, fn, taskname, taskfn) = split_tid_mcfn(revdep)
-                pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn]
-                deps = self.rqdata.runtaskentries[revdep].depends
-                provides = self.rqdata.dataCaches[mc].fn_provides[taskfn]
-                taskhash = self.rqdata.runtaskentries[revdep].hash
-                unihash = self.rqdata.runtaskentries[revdep].unihash
-                deps = self.filtermcdeps(task, mc, deps)
-                taskdepdata[revdep] = [pn, taskname, fn, deps, provides, taskhash, unihash]
-                for revdep2 in deps:
+                self.taskdepdata_cache[revdep] = self.taskdepdata_cache[revdep]._replace(
+                    unihash=self.rqdata.runtaskentries[revdep].unihash
+                )
+                taskdepdata[revdep] = self.taskdepdata_cache[revdep]
+                for revdep2 in self.taskdepdata_cache[revdep].deps:
                     if revdep2 not in taskdepdata:
                         additional.append(revdep2)
             next = additional
@@ -2374,7 +2519,7 @@ class RunQueueExecute:
             return
 
         notcovered = set(self.scenequeue_notcovered)
-        notcovered |= self.cantskip
+        notcovered |= self.sqdata.cantskip
         for tid in self.scenequeue_notcovered:
             notcovered |= self.sqdata.sq_covered_tasks[tid]
         notcovered |= self.sqdata.unskippable.difference(self.rqdata.runq_setscene_tids)
@@ -2429,9 +2574,6 @@ class RunQueueExecute:
                     self.rqdata.runtaskentries[hashtid].unihash = unihash
                     bb.parse.siggen.set_unihash(hashtid, unihash)
                     toprocess.add(hashtid)
-                if torehash:
-                    # Need to save after set_unihash above
-                    bb.parse.siggen.save_unitaskhashes()
 
         # Work out all tasks which depend upon these
         total = set()
@@ -2454,17 +2596,28 @@ class RunQueueExecute:
             elif self.rqdata.runtaskentries[p].depends.isdisjoint(total):
                 next.add(p)
 
+        starttime = time.time()
+        lasttime = starttime
+
         # When an item doesn't have dependencies in total, we can process it. Drop items from total when handled
         while next:
             current = next.copy()
             next = set()
+            ready = {}
             for tid in current:
                 if self.rqdata.runtaskentries[p].depends and not self.rqdata.runtaskentries[tid].depends.isdisjoint(total):
                     continue
+                # get_taskhash for a given tid *must* be called before get_unihash* below
+                ready[tid] = bb.parse.siggen.get_taskhash(tid, self.rqdata.runtaskentries[tid].depends, self.rqdata.dataCaches)
+
+            unihashes = bb.parse.siggen.get_unihashes(ready.keys())
+
+            for tid in ready:
                 orighash = self.rqdata.runtaskentries[tid].hash
-                newhash = bb.parse.siggen.get_taskhash(tid, self.rqdata.runtaskentries[tid].depends, self.rqdata.dataCaches)
+                newhash = ready[tid]
                 origuni = self.rqdata.runtaskentries[tid].unihash
-                newuni = bb.parse.siggen.get_unihash(tid)
+                newuni = unihashes[tid]
+
                 # FIXME, need to check it can come from sstate at all for determinism?
                 remapped = False
                 if newuni == origuni:
@@ -2485,12 +2638,21 @@ class RunQueueExecute:
                 next |= self.rqdata.runtaskentries[tid].revdeps
                 total.remove(tid)
                 next.intersection_update(total)
+                bb.event.check_for_interrupts(self.cooker.data)
+
+                if time.time() > (lasttime + 30):
+                    lasttime = time.time()
+                    hashequiv_logger.verbose("Rehash loop slow progress: %s in %s" % (len(total), lasttime - starttime))
+
+        endtime = time.time()
+        if (endtime-starttime > 60):
+            hashequiv_logger.verbose("Rehash loop took more than 60s: %s" % (endtime-starttime))
 
         if changed:
             for mc in self.rq.worker:
-                self.rq.worker[mc].process.stdin.write(b"<newtaskhashes>" + pickle.dumps(bb.parse.siggen.get_taskhashes()) + b"</newtaskhashes>")
+                RunQueue.send_pickled_data(self.rq.worker[mc].process, bb.parse.siggen.get_taskhashes(), "newtaskhashes")
             for mc in self.rq.fakeworker:
-                self.rq.fakeworker[mc].process.stdin.write(b"<newtaskhashes>" + pickle.dumps(bb.parse.siggen.get_taskhashes()) + b"</newtaskhashes>")
+                RunQueue.send_pickled_data(self.rq.fakeworker[mc].process, bb.parse.siggen.get_taskhashes(), "newtaskhashes")
 
             hashequiv_logger.debug(pprint.pformat("Tasks changed:\n%s" % (changed)))
 
@@ -2560,8 +2722,8 @@ class RunQueueExecute:
         update_tasks2 = []
         for tid in update_tasks:
             harddepfail = False
-            for t in self.sqdata.sq_harddeps:
-                if tid in self.sqdata.sq_harddeps[t] and t in self.scenequeue_notcovered:
+            for t in self.sqdata.sq_harddeps_rev[tid]:
+                if t in self.scenequeue_notcovered:
                     harddepfail = True
                     break
             if not harddepfail and self.sqdata.sq_revdeps[tid].issubset(self.scenequeue_covered | self.scenequeue_notcovered):
@@ -2593,12 +2755,14 @@ class RunQueueExecute:
 
         if changed:
             self.stats.updateCovered(len(self.scenequeue_covered), len(self.scenequeue_notcovered))
+            self.sq_needed_harddeps = set()
+            self.sq_harddep_deferred = set()
             self.holdoff_need_update = True
 
     def scenequeue_updatecounters(self, task, fail=False):
 
-        for dep in sorted(self.sqdata.sq_deps[task]):
-            if fail and task in self.sqdata.sq_harddeps and dep in self.sqdata.sq_harddeps[task]:
+        if fail and task in self.sqdata.sq_harddeps:
+            for dep in sorted(self.sqdata.sq_harddeps[task]):
                 if dep in self.scenequeue_covered or dep in self.scenequeue_notcovered:
                     # dependency could be already processed, e.g. noexec setscene task
                     continue
@@ -2608,7 +2772,12 @@ class RunQueueExecute:
                 logger.debug2("%s was unavailable and is a hard dependency of %s so skipping" % (task, dep))
                 self.sq_task_failoutright(dep)
                 continue
-            if self.sqdata.sq_revdeps[dep].issubset(self.scenequeue_covered | self.scenequeue_notcovered):
+
+        # For performance, only compute allcovered once if needed
+        if self.sqdata.sq_deps[task]:
+            allcovered = self.scenequeue_covered | self.scenequeue_notcovered
+        for dep in sorted(self.sqdata.sq_deps[task]):
+            if self.sqdata.sq_revdeps[dep].issubset(allcovered):
                 if dep not in self.sq_buildable:
                     self.sq_buildable.add(dep)
 
@@ -2626,6 +2795,13 @@ class RunQueueExecute:
                         new.add(dep)
             next = new
 
+        # If this task was one which other setscene tasks have a hard dependency upon, we need
+        # to walk through the hard dependencies and allow execution of those which have completed dependencies.
+        if task in self.sqdata.sq_harddeps:
+            for dep in self.sq_harddep_deferred.copy():
+                if self.sqdata.sq_harddeps_rev[dep].issubset(self.scenequeue_covered | self.scenequeue_notcovered):
+                    self.sq_harddep_deferred.remove(dep)
+
         self.stats.updateCovered(len(self.scenequeue_covered), len(self.scenequeue_notcovered))
         self.holdoff_need_update = True
 
@@ -2694,12 +2870,19 @@ class RunQueueExecute:
             additional = []
             for revdep in next:
                 (mc, fn, taskname, taskfn) = split_tid_mcfn(revdep)
-                pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn]
                 deps = getsetscenedeps(revdep)
-                provides = self.rqdata.dataCaches[mc].fn_provides[taskfn]
-                taskhash = self.rqdata.runtaskentries[revdep].hash
-                unihash = self.rqdata.runtaskentries[revdep].unihash
-                taskdepdata[revdep] = [pn, taskname, fn, deps, provides, taskhash, unihash]
+
+                taskdepdata[revdep] = bb.TaskData(
+                    pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn],
+                    taskname = taskname,
+                    fn = fn,
+                    deps = deps,
+                    provides = self.rqdata.dataCaches[mc].fn_provides[taskfn],
+                    taskhash = self.rqdata.runtaskentries[revdep].hash,
+                    unihash = self.rqdata.runtaskentries[revdep].unihash,
+                    hashfn = self.rqdata.dataCaches[mc].hashfn[taskfn],
+                    taskhash_deps = self.rqdata.runtaskentries[revdep].taskhash_deps,
+                )
                 for revdep2 in deps:
                     if revdep2 not in taskdepdata:
                         additional.append(revdep2)
@@ -2743,6 +2926,7 @@ class SQData(object):
         self.sq_revdeps = {}
         # Injected inter-setscene task dependencies
         self.sq_harddeps = {}
+        self.sq_harddeps_rev = {}
         # Cache of stamp files so duplicates can't run in parallel
         self.stamps = {}
         # Setscene tasks directly depended upon by the build
@@ -2752,12 +2936,17 @@ class SQData(object):
         # A list of normal tasks a setscene task covers
         self.sq_covered_tasks = {}
 
-def build_scenequeue_data(sqdata, rqdata, rq, cooker, stampcache, sqrq):
+def build_scenequeue_data(sqdata, rqdata, sqrq):
 
     sq_revdeps = {}
     sq_revdeps_squash = {}
     sq_collated_deps = {}
 
+    # We can't skip specified target tasks which aren't setscene tasks
+    sqdata.cantskip = set(rqdata.target_tids)
+    sqdata.cantskip.difference_update(rqdata.runq_setscene_tids)
+    sqdata.cantskip.intersection_update(rqdata.runtaskentries)
+
     # We need to construct a dependency graph for the setscene functions. Intermediate
     # dependencies between the setscene tasks only complicate the code. This code
     # therefore aims to collapse the huge runqueue dependency tree into a smaller one
@@ -2826,7 +3015,7 @@ def build_scenequeue_data(sqdata, rqdata, rq, cooker, stampcache, sqrq):
     for tid in rqdata.runtaskentries:
         if not rqdata.runtaskentries[tid].revdeps:
             sqdata.unskippable.add(tid)
-    sqdata.unskippable |= sqrq.cantskip
+    sqdata.unskippable |= sqdata.cantskip
     while new:
         new = False
         orig = sqdata.unskippable.copy()
@@ -2865,6 +3054,7 @@ def build_scenequeue_data(sqdata, rqdata, rq, cooker, stampcache, sqrq):
         idepends = rqdata.taskData[mc].taskentries[realtid].idepends
         sqdata.stamps[tid] = bb.parse.siggen.stampfile_mcfn(taskname, taskfn, extrainfo=False)
 
+        sqdata.sq_harddeps_rev[tid] = set()
         for (depname, idependtask) in idepends:
 
             if depname not in rqdata.taskData[mc].build_targets:
@@ -2877,20 +3067,15 @@ def build_scenequeue_data(sqdata, rqdata, rq, cooker, stampcache, sqrq):
             if deptid not in rqdata.runtaskentries:
                 bb.msg.fatal("RunQueue", "Task %s depends upon non-existent task %s:%s" % (realtid, depfn, idependtask))
 
+            logger.debug2("Adding hard setscene dependency %s for %s" % (deptid, tid))
+
             if not deptid in sqdata.sq_harddeps:
                 sqdata.sq_harddeps[deptid] = set()
             sqdata.sq_harddeps[deptid].add(tid)
-
-            sq_revdeps_squash[tid].add(deptid)
-            # Have to zero this to avoid circular dependencies
-            sq_revdeps_squash[deptid] = set()
+            sqdata.sq_harddeps_rev[tid].add(deptid)
 
     rqdata.init_progress_reporter.next_stage()
 
-    for task in sqdata.sq_harddeps:
-        for dep in sqdata.sq_harddeps[task]:
-            sq_revdeps_squash[dep].add(task)
-
     rqdata.init_progress_reporter.next_stage()
 
     #for tid in sq_revdeps_squash:
@@ -2917,7 +3102,7 @@ def build_scenequeue_data(sqdata, rqdata, rq, cooker, stampcache, sqrq):
         if not sqdata.sq_revdeps[tid]:
             sqrq.sq_buildable.add(tid)
 
-    rqdata.init_progress_reporter.finish()
+    rqdata.init_progress_reporter.next_stage()
 
     sqdata.noexec = set()
     sqdata.stamppresent = set()
@@ -2934,23 +3119,7 @@ def build_scenequeue_data(sqdata, rqdata, rq, cooker, stampcache, sqrq):
                 sqdata.hashes[h] = tid
             else:
                 sqrq.sq_deferred[tid] = sqdata.hashes[h]
-                bb.note("Deferring %s after %s" % (tid, sqdata.hashes[h]))
-
-    update_scenequeue_data(sqdata.sq_revdeps, sqdata, rqdata, rq, cooker, stampcache, sqrq, summary=True)
-
-    # Compute a list of 'stale' sstate tasks where the current hash does not match the one
-    # in any stamp files. Pass the list out to metadata as an event.
-    found = {}
-    for tid in rqdata.runq_setscene_tids:
-        (mc, fn, taskname, taskfn) = split_tid_mcfn(tid)
-        stamps = bb.build.find_stale_stamps(taskname, taskfn)
-        if stamps:
-            if mc not in found:
-                found[mc] = {}
-            found[mc][tid] = stamps
-    for mc in found:
-        event = bb.event.StaleSetSceneTasks(found[mc])
-        bb.event.fire(event, cooker.databuilder.mcdata[mc])
+                bb.debug(1, "Deferring %s after %s" % (tid, sqdata.hashes[h]))
 
 def check_setscene_stamps(tid, rqdata, rq, stampcache, noexecstamp=False):
 
@@ -3146,15 +3315,12 @@ class runQueuePipe():
         if pipeout:
             pipeout.close()
         bb.utils.nonblockingfd(self.input)
-        self.queue = b""
+        self.queue = bytearray()
         self.d = d
         self.rq = rq
         self.rqexec = rqexec
         self.fakerootlogs = fakerootlogs
 
-    def setrunqueueexec(self, rqexec):
-        self.rqexec = rqexec
-
     def read(self):
         for workers, name in [(self.rq.worker, "Worker"), (self.rq.fakeworker, "Fakeroot")]:
             for worker in workers.values():
@@ -3165,7 +3331,7 @@ class runQueuePipe():
 
         start = len(self.queue)
         try:
-            self.queue = self.queue + (self.input.read(102400) or b"")
+            self.queue.extend(self.input.read(512 * 1024) or b"")
         except (OSError, IOError) as e:
             if e.errno != errno.EAGAIN:
                 raise

bitbake/lib/bb/server/process.py

@@ -38,9 +38,13 @@ logger = logging.getLogger('BitBake')
 class ProcessTimeout(SystemExit):
     pass
 
+def currenttime():
+    return datetime.datetime.now().strftime('%H:%M:%S.%f')
+
 def serverlog(msg):
-    print(str(os.getpid()) + " " +  datetime.datetime.now().strftime('%H:%M:%S.%f') + " " + msg)
-    sys.stdout.flush()
+    print(str(os.getpid()) + " " +  currenttime() + " " + msg)
+    #Seems a flush here triggers filesytem sync like behaviour and long hangs in the server
+    #sys.stdout.flush()
 
 #
 # When we have lockfile issues, try and find infomation about which process is
@@ -289,7 +293,9 @@ class ProcessServer():
                     continue
                 try:
                     serverlog("Running command %s" % command)
-                    self.command_channel_reply.send(self.cooker.command.runCommand(command, self))
+                    reply = self.cooker.command.runCommand(command, self)
+                    serverlog("Sending reply %s" % repr(reply))
+                    self.command_channel_reply.send(reply)
                     serverlog("Command Completed (socket: %s)" % os.path.exists(self.sockname))
                 except Exception as e:
                    stack = traceback.format_exc()
@@ -315,7 +321,22 @@ class ProcessServer():
                     bb.warn('Ignoring invalid BB_SERVER_TIMEOUT=%s, must be a float specifying seconds.' % self.timeout)
                 seendata = True
 
-            ready = self.idle_commands(.1, fds)
+            if not self.idle:
+                self.idle = threading.Thread(target=self.idle_thread)
+                self.idle.start()
+            elif self.idle and not self.idle.is_alive():
+                serverlog("Idle thread terminated, main thread exiting too")
+                bb.error("Idle thread terminated, main thread exiting too")
+                self.quit = True
+
+            nextsleep = 1.0
+            if self.xmlrpc:
+                nextsleep = self.xmlrpc.get_timeout(nextsleep)
+            try:
+                ready = select.select(fds,[],[],nextsleep)[0]
+            except InterruptedError:
+                # Ignore EINTR
+                ready = []
 
         if self.idle:
             self.idle.join()
@@ -375,7 +396,7 @@ class ProcessServer():
                 lock = bb.utils.lockfile(lockfile, shared=False, retry=False, block=False)
                 if not lock:
                     newlockcontents = get_lock_contents(lockfile)
-                    if not newlockcontents[0].startswith([os.getpid() + "\n", os.getpid() + " "]):
+                    if not newlockcontents[0].startswith([f"{os.getpid()}\n", f"{os.getpid()} "]):
                         # A new server was started, the lockfile contents changed, we can exit
                         serverlog("Lockfile now contains different contents, exiting: " + str(newlockcontents))
                         return
@@ -396,21 +417,31 @@ class ProcessServer():
                 serverlog("".join(msg))
 
     def idle_thread(self):
+        if self.cooker.configuration.profile:
+            try:
+                import cProfile as profile
+            except:
+                import profile
+            prof = profile.Profile()
+
+            ret = profile.Profile.runcall(prof, self.idle_thread_internal)
+
+            prof.dump_stats("profile-mainloop.log")
+            bb.utils.process_profilelog("profile-mainloop.log")
+            serverlog("Raw profiling information saved to profile-mainloop.log and processed statistics to profile-mainloop.log.processed")
+        else:
+            self.idle_thread_internal()
+
+    def idle_thread_internal(self):
         def remove_idle_func(function):
             with bb.utils.lock_timeout(self._idlefuncsLock):
                 del self._idlefuns[function]
                 self.idle_cond.notify_all()
 
         while not self.quit:
-            nextsleep = 0.1
+            nextsleep = 1.0
             fds = []
 
-            try:
-                self.cooker.process_inotify_updates()
-            except Exception as exc:
-                serverlog("Exception %s in inofify updates broke the idle_thread, exiting" % traceback.format_exc())
-                self.quit = True
-
             with bb.utils.lock_timeout(self._idlefuncsLock):
                 items = list(self._idlefuns.items())
 
@@ -446,7 +477,7 @@ class ProcessServer():
 
             # Create new heartbeat event?
             now = time.time()
-            if bb.event._heartbeat_enabled and now >= self.next_heartbeat:
+            if items and bb.event._heartbeat_enabled and now >= self.next_heartbeat:
                 # We might have missed heartbeats. Just trigger once in
                 # that case and continue after the usual delay.
                 self.next_heartbeat += self.heartbeat_seconds
@@ -469,43 +500,24 @@ class ProcessServer():
             if nextsleep is not None:
                 select.select(fds,[],[],nextsleep)[0]
 
-    def idle_commands(self, delay, fds=None):
-        nextsleep = delay
-        if not fds:
-            fds = []
-
-        if not self.idle:
-            self.idle = threading.Thread(target=self.idle_thread)
-            self.idle.start()
-        elif self.idle and not self.idle.is_alive():
-            serverlog("Idle thread terminated, main thread exiting too")
-            bb.error("Idle thread terminated, main thread exiting too")
-            self.quit = True
-
-        if nextsleep is not None:
-            if self.xmlrpc:
-                nextsleep = self.xmlrpc.get_timeout(nextsleep)
-            try:
-                return select.select(fds,[],[],nextsleep)[0]
-            except InterruptedError:
-                # Ignore EINTR
-                return []
-        else:
-            return select.select(fds,[],[],0)[0]
-
-
 class ServerCommunicator():
     def __init__(self, connection, recv):
         self.connection = connection
         self.recv = recv
 
     def runCommand(self, command):
-        self.connection.send(command)
+        try:
+            self.connection.send(command)
+        except BrokenPipeError as e:
+            raise BrokenPipeError("bitbake-server might have died or been forcibly stopped, ie. OOM killed") from e
         if not self.recv.poll(30):
-            logger.info("No reply from server in 30s")
+            logger.info("No reply from server in 30s (for command %s at %s)" % (command[0], currenttime()))
             if not self.recv.poll(30):
-                raise ProcessTimeout("Timeout while waiting for a reply from the bitbake server (60s)")
-        ret, exc = self.recv.get()
+                raise ProcessTimeout("Timeout while waiting for a reply from the bitbake server (60s at %s)" % currenttime())
+        try:
+            ret, exc = self.recv.get()
+        except EOFError as e:
+            raise EOFError("bitbake-server might have died or been forcibly stopped, ie. OOM killed") from e
         # Should probably turn all exceptions in exc back into exceptions?
         # For now, at least handle BBHandledException
         if exc and ("BBHandledException" in exc or "SystemExit" in exc):
@@ -620,7 +632,7 @@ class BitBakeServer(object):
         os.set_inheritable(self.bitbake_lock.fileno(), True)
         os.set_inheritable(self.readypipein, True)
         serverscript = os.path.realpath(os.path.dirname(__file__) + "/../../../bin/bitbake-server")
-        os.execl(sys.executable, "bitbake-server", serverscript, "decafbad", str(self.bitbake_lock.fileno()), str(self.readypipein), self.logfile, self.bitbake_lock.name, self.sockname,  str(self.server_timeout or 0), str(int(self.profile)), str(self.xmlrpcinterface[0]), str(self.xmlrpcinterface[1]))
+        os.execl(sys.executable, sys.executable, serverscript, "decafbad", str(self.bitbake_lock.fileno()), str(self.readypipein), self.logfile, self.bitbake_lock.name, self.sockname,  str(self.server_timeout or 0), str(int(self.profile)), str(self.xmlrpcinterface[0]), str(self.xmlrpcinterface[1]))
 
 def execServer(lockfd, readypipeinfd, lockname, sockname, server_timeout, xmlrpcinterface, profile):
 
@@ -860,11 +872,10 @@ class ConnectionWriter(object):
                 process.queue_signals = True
                 self._send(obj)
                 process.queue_signals = False
-                try:
-                    for sig in process.signal_received.pop():
-                        process.handle_sig(sig, None)
-                except IndexError:
-                    pass
+
+                while len(process.signal_received) > 0:
+                    sig = process.signal_received.pop()
+                    process.handle_sig(sig, None)
         else:
             self._send(obj)
 

bitbake/lib/bb/server/xmlrpcserver.py

@@ -14,6 +14,8 @@ from xmlrpc.server import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler
 import bb.server.xmlrpcclient
 
 import bb
+import bb.cooker
+import bb.event
 
 # This request handler checks if the request has a "Bitbake-token" header
 # field (this comes from the client side) and compares it with its internal
@@ -54,7 +56,7 @@ class BitBakeXMLRPCServer(SimpleXMLRPCServer):
 
     def __init__(self, interface, cooker, parent):
         # Use auto port configuration
-        if (interface[1] == -1):
+        if interface[1] == -1:
             interface = (interface[0], 0)
         SimpleXMLRPCServer.__init__(self, interface,
                                     requestHandler=BitBakeXMLRPCRequestHandler,
@@ -87,11 +89,12 @@ class BitBakeXMLRPCServer(SimpleXMLRPCServer):
     def handle_requests(self):
         self._handle_request_noblock()
 
-class BitBakeXMLRPCServerCommands():
+class BitBakeXMLRPCServerCommands:
 
     def __init__(self, server):
         self.server = server
         self.has_client = False
+        self.event_handle = None
 
     def registerEventHandler(self, host, port):
         """
@@ -100,8 +103,8 @@ class BitBakeXMLRPCServerCommands():
         s, t = bb.server.xmlrpcclient._create_server(host, port)
 
         # we don't allow connections if the cooker is running
-        if (self.server.cooker.state in [bb.cooker.state.parsing, bb.cooker.state.running]):
-            return None, "Cooker is busy: %s" % bb.cooker.state.get_name(self.server.cooker.state)
+        if self.server.cooker.state in [bb.cooker.State.PARSING, bb.cooker.State.RUNNING]:
+            return None, f"Cooker is busy: {self.server.cooker.state.name}"
 
         self.event_handle = bb.event.register_UIHhandler(s, True)
         return self.event_handle, 'OK'

bitbake/lib/bb/siggen.py

@@ -15,6 +15,7 @@ import difflib
 import simplediff
 import json
 import types
+from contextlib import contextmanager
 import bb.compress.zstd
 from bb.checksum import FileChecksumCache
 from bb import runqueue
@@ -24,6 +25,24 @@ import hashserv.client
 logger = logging.getLogger('BitBake.SigGen')
 hashequiv_logger = logging.getLogger('BitBake.SigGen.HashEquiv')
 
+#find_siginfo and find_siginfo_version are set by the metadata siggen
+# The minimum version of the find_siginfo function we need
+find_siginfo_minversion = 2
+
+HASHSERV_ENVVARS = [
+    "SSL_CERT_DIR",
+    "SSL_CERT_FILE",
+    "NO_PROXY",
+    "HTTPS_PROXY",
+    "HTTP_PROXY"
+]
+
+def check_siggen_version(siggen):
+    if not hasattr(siggen, "find_siginfo_version"):
+        bb.fatal("Siggen from metadata (OE-Core?) is too old, please update it (no version found)")
+    if siggen.find_siginfo_version < siggen.find_siginfo_minversion:
+        bb.fatal("Siggen from metadata (OE-Core?) is too old, please update it (%s vs %s)" % (siggen.find_siginfo_version, siggen.find_siginfo_minversion))
+
 class SetEncoder(json.JSONEncoder):
     def default(self, obj):
         if isinstance(obj, set) or isinstance(obj, frozenset):
@@ -92,9 +111,18 @@ class SignatureGenerator(object):
             if flag:
                 self.datacaches[mc].stamp_extrainfo[mcfn][t] = flag
 
+    def get_cached_unihash(self, tid):
+        return None
+
     def get_unihash(self, tid):
+        unihash = self.get_cached_unihash(tid)
+        if unihash:
+            return unihash
         return self.taskhash[tid]
 
+    def get_unihashes(self, tids):
+        return {tid: self.get_unihash(tid) for tid in tids}
+
     def prep_taskhash(self, tid, deps, dataCaches):
         return
 
@@ -173,15 +201,17 @@ class SignatureGenerator(object):
     def save_unitaskhashes(self):
         return
 
-    def copy_unitaskhashes(self, targetdir):
-        return
-
     def set_setscene_tasks(self, setscene_tasks):
         return
 
     def exit(self):
         return
 
+def build_pnid(mc, pn, taskname):
+    if mc:
+        return "mc:" + mc + ":" + pn + ":" + taskname
+    return pn + ":" + taskname
+
 class SignatureGeneratorBasic(SignatureGenerator):
     """
     """
@@ -256,10 +286,6 @@ class SignatureGeneratorBasic(SignatureGenerator):
             bb.warn("Error during finalise of %s" % mcfn)
             raise
 
-        #Slow but can be useful for debugging mismatched basehashes
-        #for task in self.taskdeps[mcfn]:
-        #    self.dump_sigtask(mcfn, task, d.getVar("STAMP"), False)
-
         basehashes = {}
         for task in taskdeps:
             basehashes[task] = self.basehash[mcfn + ":" + task]
@@ -269,6 +295,11 @@ class SignatureGeneratorBasic(SignatureGenerator):
         d.setVar("__siggen_varvals", lookupcache)
         d.setVar("__siggen_taskdeps", taskdeps)
 
+        #Slow but can be useful for debugging mismatched basehashes
+        #self.setup_datacache_from_datastore(mcfn, d)
+        #for task in taskdeps:
+        #    self.dump_sigtask(mcfn, task, d.getVar("STAMP"), False)
+
     def setup_datacache_from_datastore(self, mcfn, d):
         super().setup_datacache_from_datastore(mcfn, d)
 
@@ -309,15 +340,19 @@ class SignatureGeneratorBasic(SignatureGenerator):
         recipename = dataCaches[mc].pkg_fn[mcfn]
 
         self.tidtopn[tid] = recipename
+        # save hashfn for deps into siginfo?
+        for dep in deps:
+            (depmc, _, deptask, depmcfn) = bb.runqueue.split_tid_mcfn(dep)
+            dep_pn = dataCaches[depmc].pkg_fn[depmcfn]
 
-        for dep in sorted(deps, key=clean_basepath):
-            (depmc, _, _, depmcfn) = bb.runqueue.split_tid_mcfn(dep)
-            depname = dataCaches[depmc].pkg_fn[depmcfn]
-            if not self.rundep_check(mcfn, recipename, task, dep, depname, dataCaches):
+            if not self.rundep_check(mcfn, recipename, task, dep, dep_pn, dataCaches):
                 continue
+
             if dep not in self.taskhash:
                 bb.fatal("%s is not in taskhash, caller isn't calling in dependency order?" % dep)
-            self.runtaskdeps[tid].append(dep)
+
+            dep_pnid = build_pnid(depmc, dep_pn, deptask)
+            self.runtaskdeps[tid].append((dep_pnid, dep))
 
         if task in dataCaches[mc].file_checksums[mcfn]:
             if self.checksum_cache:
@@ -343,15 +378,15 @@ class SignatureGeneratorBasic(SignatureGenerator):
             self.taints[tid] = taint
             logger.warning("%s is tainted from a forced run" % tid)
 
-        return
+        return set(dep for _, dep in self.runtaskdeps[tid])
 
     def get_taskhash(self, tid, deps, dataCaches):
 
         data = self.basehash[tid]
-        for dep in self.runtaskdeps[tid]:
-            data += self.get_unihash(dep)
+        for dep in sorted(self.runtaskdeps[tid]):
+            data += self.get_unihash(dep[1])
 
-        for (f, cs) in self.file_checksum_values[tid]:
+        for (f, cs) in sorted(self.file_checksum_values[tid], key=clean_checksum_file_path):
             if cs:
                 if "/./" in f:
                     data += "./" + f.split("/./")[1]
@@ -380,9 +415,6 @@ class SignatureGeneratorBasic(SignatureGenerator):
     def save_unitaskhashes(self):
         self.unihash_cache.save(self.unitaskhashes)
 
-    def copy_unitaskhashes(self, targetdir):
-        self.unihash_cache.copyfile(targetdir)
-
     def dump_sigtask(self, mcfn, task, stampbase, runtime):
         tid = mcfn + ":" + task
         mc = bb.runqueue.mc_from_tid(mcfn)
@@ -409,21 +441,21 @@ class SignatureGeneratorBasic(SignatureGenerator):
         data['varvals'][task] = self.datacaches[mc].siggen_varvals[mcfn][task]
         for dep in self.datacaches[mc].siggen_taskdeps[mcfn][task]:
             if dep in self.basehash_ignore_vars:
-               continue
+                continue
             data['gendeps'][dep] = self.datacaches[mc].siggen_gendeps[mcfn][dep]
             data['varvals'][dep] = self.datacaches[mc].siggen_varvals[mcfn][dep]
 
         if runtime and tid in self.taskhash:
-            data['runtaskdeps'] = self.runtaskdeps[tid]
+            data['runtaskdeps'] = [dep[0] for dep in sorted(self.runtaskdeps[tid])]
             data['file_checksum_values'] = []
-            for f,cs in self.file_checksum_values[tid]:
+            for f,cs in sorted(self.file_checksum_values[tid], key=clean_checksum_file_path):
                 if "/./" in f:
                     data['file_checksum_values'].append(("./" + f.split("/./")[1], cs))
                 else:
                     data['file_checksum_values'].append((os.path.basename(f), cs))
             data['runtaskhashes'] = {}
-            for dep in data['runtaskdeps']:
-                data['runtaskhashes'][dep] = self.get_unihash(dep)
+            for dep in self.runtaskdeps[tid]:
+                data['runtaskhashes'][dep[0]] = self.get_unihash(dep[1])
             data['taskhash'] = self.taskhash[tid]
             data['unihash'] = self.get_unihash(tid)
 
@@ -501,32 +533,79 @@ class SignatureGeneratorBasicHash(SignatureGeneratorBasic):
 class SignatureGeneratorUniHashMixIn(object):
     def __init__(self, data):
         self.extramethod = {}
+        # NOTE: The cache only tracks hashes that exist. Hashes that don't
+        # exist are always queried from the server since it is possible for
+        # hashes to appear over time, but much less likely for them to
+        # disappear
+        self.unihash_exists_cache = set()
+        self.username = None
+        self.password = None
+        self.env = {}
+
+        origenv = data.getVar("BB_ORIGENV")
+        for e in HASHSERV_ENVVARS:
+            value = data.getVar(e)
+            if not value and origenv:
+                value = origenv.getVar(e)
+            if value:
+                self.env[e] = value
         super().__init__(data)
 
     def get_taskdata(self):
-        return (self.server, self.method, self.extramethod) + super().get_taskdata()
+        return (self.server, self.method, self.extramethod, self.username, self.password, self.env) + super().get_taskdata()
 
     def set_taskdata(self, data):
-        self.server, self.method, self.extramethod = data[:3]
-        super().set_taskdata(data[3:])
+        self.server, self.method, self.extramethod, self.username, self.password, self.env = data[:6]
+        super().set_taskdata(data[6:])
 
+    def get_hashserv_creds(self):
+        if self.username and self.password:
+            return {
+                "username": self.username,
+                "password": self.password,
+            }
+
+        return {}
+
+    @contextmanager
+    def _client_env(self):
+        orig_env = os.environ.copy()
+        try:
+            for k, v in self.env.items():
+                os.environ[k] = v
+
+            yield
+        finally:
+            for k, v in self.env.items():
+                if k in orig_env:
+                    os.environ[k] = orig_env[k]
+                else:
+                    del os.environ[k]
+
+    @contextmanager
     def client(self):
-        if getattr(self, '_client', None) is None:
-            self._client = hashserv.create_client(self.server)
-        return self._client
+        with self._client_env():
+            if getattr(self, '_client', None) is None:
+                self._client = hashserv.create_client(self.server, **self.get_hashserv_creds())
+            yield self._client
 
     def reset(self, data):
-        if getattr(self, '_client', None) is not None:
-            self._client.close()
-            self._client = None 
+        self.__close_clients()
         return super().reset(data)
 
     def exit(self):
-        if getattr(self, '_client', None) is not None:
-            self._client.close()
-            self._client = None
+        self.__close_clients()
         return super().exit()
 
+    def __close_clients(self):
+        with self._client_env():
+            if getattr(self, '_client', None) is not None:
+                self._client.close()
+                self._client = None
+            if getattr(self, '_client_pool', None) is not None:
+                self._client_pool.close()
+                self._client_pool = None
+
     def get_stampfile_hash(self, tid):
         if tid in self.taskhash:
             # If a unique hash is reported, use it as the stampfile hash. This
@@ -558,7 +637,7 @@ class SignatureGeneratorUniHashMixIn(object):
             return None
         return unihash
 
-    def get_unihash(self, tid):
+    def get_cached_unihash(self, tid):
         taskhash = self.taskhash[tid]
 
         # If its not a setscene task we can return
@@ -573,40 +652,96 @@ class SignatureGeneratorUniHashMixIn(object):
             self.unihash[tid] = unihash
             return unihash
 
-        # In the absence of being able to discover a unique hash from the
-        # server, make it be equivalent to the taskhash. The unique "hash" only
-        # really needs to be a unique string (not even necessarily a hash), but
-        # making it match the taskhash has a few advantages:
-        #
-        # 1) All of the sstate code that assumes hashes can be the same
-        # 2) It provides maximal compatibility with builders that don't use
-        #    an equivalency server
-        # 3) The value is easy for multiple independent builders to derive the
-        #    same unique hash from the same input. This means that if the
-        #    independent builders find the same taskhash, but it isn't reported
-        #    to the server, there is a better chance that they will agree on
-        #    the unique hash.
-        unihash = taskhash
+        return None
 
-        try:
-            method = self.method
-            if tid in self.extramethod:
-                method = method + self.extramethod[tid]
-            data = self.client().get_unihash(method, self.taskhash[tid])
-            if data:
-                unihash = data
+    def _get_method(self, tid):
+        method = self.method
+        if tid in self.extramethod:
+            method = method + self.extramethod[tid]
+
+        return method
+
+    def unihashes_exist(self, query):
+        if len(query) == 0:
+            return {}
+
+        query_keys = []
+        result = {}
+        for key, unihash in query.items():
+            if unihash in self.unihash_exists_cache:
+                result[key] = True
+            else:
+                query_keys.append(key)
+
+        if query_keys:
+            with self.client() as client:
+                query_result = client.unihash_exists_batch(query[k] for k in query_keys)
+
+        for idx, key in enumerate(query_keys):
+            exists = query_result[idx]
+            if exists:
+                self.unihash_exists_cache.add(query[key])
+            result[key] = exists
+
+        return result
+
+    def get_unihash(self, tid):
+        return self.get_unihashes([tid])[tid]
+
+    def get_unihashes(self, tids):
+        """
+        For a iterable of tids, returns a dictionary that maps each tid to a
+        unihash
+        """
+        result = {}
+        query_tids = []
+
+        for tid in tids:
+            unihash = self.get_cached_unihash(tid)
+            if unihash:
+                result[tid] = unihash
+            else:
+                query_tids.append(tid)
+
+        if query_tids:
+            unihashes = []
+            try:
+                with self.client() as client:
+                    unihashes = client.get_unihash_batch((self._get_method(tid), self.taskhash[tid]) for tid in query_tids)
+            except (ConnectionError, FileNotFoundError) as e:
+                bb.warn('Error contacting Hash Equivalence Server %s: %s' % (self.server, str(e)))
+
+        for idx, tid in enumerate(query_tids):
+            # In the absence of being able to discover a unique hash from the
+            # server, make it be equivalent to the taskhash. The unique "hash" only
+            # really needs to be a unique string (not even necessarily a hash), but
+            # making it match the taskhash has a few advantages:
+            #
+            # 1) All of the sstate code that assumes hashes can be the same
+            # 2) It provides maximal compatibility with builders that don't use
+            #    an equivalency server
+            # 3) The value is easy for multiple independent builders to derive the
+            #    same unique hash from the same input. This means that if the
+            #    independent builders find the same taskhash, but it isn't reported
+            #    to the server, there is a better chance that they will agree on
+            #    the unique hash.
+            taskhash = self.taskhash[tid]
+
+            if unihashes and unihashes[idx]:
+                unihash = unihashes[idx]
                 # A unique hash equal to the taskhash is not very interesting,
                 # so it is reported it at debug level 2. If they differ, that
                 # is much more interesting, so it is reported at debug level 1
                 hashequiv_logger.bbdebug((1, 2)[unihash == taskhash], 'Found unihash %s in place of %s for %s from %s' % (unihash, taskhash, tid, self.server))
             else:
                 hashequiv_logger.debug2('No reported unihash for %s:%s from %s' % (tid, taskhash, self.server))
-        except ConnectionError as e:
-            bb.warn('Error contacting Hash Equivalence Server %s: %s' % (self.server, str(e)))
+                unihash = taskhash
 
-        self.set_unihash(tid, unihash)
-        self.unihash[tid] = unihash
-        return unihash
+            self.set_unihash(tid, unihash)
+            self.unihash[tid] = unihash
+            result[tid] = unihash
+
+        return result
 
     def report_unihash(self, path, task, d):
         import importlib
@@ -670,7 +805,9 @@ class SignatureGeneratorUniHashMixIn(object):
                 if tid in self.extramethod:
                     method = method + self.extramethod[tid]
 
-                data = self.client().report_unihash(taskhash, method, outhash, unihash, extra_data)
+                with self.client() as client:
+                    data = client.report_unihash(taskhash, method, outhash, unihash, extra_data)
+
                 new_unihash = data['unihash']
 
                 if new_unihash != unihash:
@@ -680,7 +817,7 @@ class SignatureGeneratorUniHashMixIn(object):
                     d.setVar('BB_UNIHASH', new_unihash)
                 else:
                     hashequiv_logger.debug('Reported task %s as unihash %s to %s' % (taskhash, unihash, self.server))
-            except ConnectionError as e:
+            except (ConnectionError, FileNotFoundError) as e:
                 bb.warn('Error contacting Hash Equivalence Server %s: %s' % (self.server, str(e)))
         finally:
             if sigfile:
@@ -701,7 +838,9 @@ class SignatureGeneratorUniHashMixIn(object):
             if tid in self.extramethod:
                 method = method + self.extramethod[tid]
 
-            data = self.client().report_unihash_equiv(taskhash, method, wanted_unihash, extra_data)
+            with self.client() as client:
+                data = client.report_unihash_equiv(taskhash, method, wanted_unihash, extra_data)
+
             hashequiv_logger.verbose('Reported task %s as unihash %s to %s (%s)' % (tid, wanted_unihash, self.server, str(data)))
 
             if data is None:
@@ -720,7 +859,7 @@ class SignatureGeneratorUniHashMixIn(object):
                 # TODO: What to do here?
                 hashequiv_logger.verbose('Task %s unihash reported as unwanted hash %s' % (tid, finalunihash))
 
-        except ConnectionError as e:
+        except (ConnectionError, FileNotFoundError) as e:
             bb.warn('Error contacting Hash Equivalence Server %s: %s' % (self.server, str(e)))
 
         return False
@@ -735,6 +874,12 @@ class SignatureGeneratorTestEquivHash(SignatureGeneratorUniHashMixIn, SignatureG
         self.server = data.getVar('BB_HASHSERVE')
         self.method = "sstate_output_hash"
 
+def clean_checksum_file_path(file_checksum_tuple):
+    f, cs = file_checksum_tuple
+    if "/./" in f:
+        return "./" + f.split("/./")[1]
+    return os.path.basename(f)
+
 def dump_this_task(outfile, d):
     import bb.parse
     mcfn = d.getVar("BB_FILENAME")
@@ -793,39 +938,6 @@ def list_inline_diff(oldlist, newlist, colors=None):
             ret.append(item)
     return '[%s]' % (', '.join(ret))
 
-def clean_basepath(basepath):
-    basepath, dir, recipe_task = basepath.rsplit("/", 2)
-    cleaned = dir + '/' + recipe_task
-
-    if basepath[0] == '/':
-        return cleaned
-
-    if basepath.startswith("mc:") and basepath.count(':') >= 2:
-        mc, mc_name, basepath = basepath.split(":", 2)
-        mc_suffix = ':mc:' + mc_name
-    else:
-        mc_suffix = ''
-
-    # mc stuff now removed from basepath. Whatever was next, if present will be the first
-    # suffix. ':/', recipe path start, marks the end of this. Something like
-    # 'virtual:a[:b[:c]]:/path...' (b and c being optional)
-    if basepath[0] != '/':
-        cleaned += ':' + basepath.split(':/', 1)[0]
-
-    return cleaned + mc_suffix
-
-def clean_basepaths(a):
-    b = {}
-    for x in a:
-        b[clean_basepath(x)] = a[x]
-    return b
-
-def clean_basepaths_list(a):
-    b = []
-    for x in a:
-        b.append(clean_basepath(x))
-    return b
-
 # Handled renamed fields
 def handle_renames(data):
     if 'basewhitelist' in data:
@@ -856,10 +968,18 @@ def compare_sigfiles(a, b, recursecb=None, color=False, collapsed=False):
         formatparams.update(values)
         return formatstr.format(**formatparams)
 
-    with bb.compress.zstd.open(a, "rt", encoding="utf-8", num_threads=1) as f:
-        a_data = json.load(f, object_hook=SetDecoder)
-    with bb.compress.zstd.open(b, "rt", encoding="utf-8", num_threads=1) as f:
-        b_data = json.load(f, object_hook=SetDecoder)
+    try:
+        with bb.compress.zstd.open(a, "rt", encoding="utf-8", num_threads=1) as f:
+            a_data = json.load(f, object_hook=SetDecoder)
+    except (TypeError, OSError) as err:
+        bb.error("Failed to open sigdata file '%s': %s" % (a, str(err)))
+        raise err
+    try:
+        with bb.compress.zstd.open(b, "rt", encoding="utf-8", num_threads=1) as f:
+            b_data = json.load(f, object_hook=SetDecoder)
+    except (TypeError, OSError) as err:
+        bb.error("Failed to open sigdata file '%s': %s" % (b, str(err)))
+        raise err
 
     for data in [a_data, b_data]:
         handle_renames(data)
@@ -994,11 +1114,11 @@ def compare_sigfiles(a, b, recursecb=None, color=False, collapsed=False):
                 a = a_data['runtaskdeps'][idx]
                 b = b_data['runtaskdeps'][idx]
                 if a_data['runtaskhashes'][a] != b_data['runtaskhashes'][b] and not collapsed:
-                    changed.append("%s with hash %s\n changed to\n%s with hash %s" % (clean_basepath(a), a_data['runtaskhashes'][a], clean_basepath(b), b_data['runtaskhashes'][b]))
+                    changed.append("%s with hash %s\n changed to\n%s with hash %s" % (a, a_data['runtaskhashes'][a], b, b_data['runtaskhashes'][b]))
 
         if changed:
-            clean_a = clean_basepaths_list(a_data['runtaskdeps'])
-            clean_b = clean_basepaths_list(b_data['runtaskdeps'])
+            clean_a = a_data['runtaskdeps']
+            clean_b = b_data['runtaskdeps']
             if clean_a != clean_b:
                 output.append(color_format("{color_title}runtaskdeps changed:{color_default}\n%s") % list_inline_diff(clean_a, clean_b, colors))
             else:
@@ -1007,8 +1127,8 @@ def compare_sigfiles(a, b, recursecb=None, color=False, collapsed=False):
 
 
     if 'runtaskhashes' in a_data and 'runtaskhashes' in b_data:
-        a = clean_basepaths(a_data['runtaskhashes'])
-        b = clean_basepaths(b_data['runtaskhashes'])
+        a = a_data['runtaskhashes']
+        b = b_data['runtaskhashes']
         changed, added, removed = dict_diff(a, b)
         if added:
             for dep in sorted(added):
@@ -1097,8 +1217,12 @@ def calc_taskhash(sigdata):
 def dump_sigfile(a):
     output = []
 
-    with bb.compress.zstd.open(a, "rt", encoding="utf-8", num_threads=1) as f:
-        a_data = json.load(f, object_hook=SetDecoder)
+    try:
+        with bb.compress.zstd.open(a, "rt", encoding="utf-8", num_threads=1) as f:
+            a_data = json.load(f, object_hook=SetDecoder)
+    except (TypeError, OSError) as err:
+        bb.error("Failed to open sigdata file '%s': %s" % (a, str(err)))
+        raise err
 
     handle_renames(a_data)
 

bitbake/lib/bb/tests/codeparser.py

@@ -44,6 +44,7 @@ class VariableReferenceTest(ReferenceTest):
     def parseExpression(self, exp):
         parsedvar = self.d.expandWithRefs(exp, None)
         self.references = parsedvar.references
+        self.execs = parsedvar.execs
 
     def test_simple_reference(self):
         self.setEmptyVars(["FOO"])
@@ -61,6 +62,11 @@ class VariableReferenceTest(ReferenceTest):
         self.parseExpression("${@d.getVar('BAR') + 'foo'}")
         self.assertReferences(set(["BAR"]))
 
+    def test_python_exec_reference(self):
+        self.parseExpression("${@eval('3 * 5')}")
+        self.assertReferences(set())
+        self.assertExecs(set(["eval"]))
+
 class ShellReferenceTest(ReferenceTest):
 
     def parseExpression(self, exp):
@@ -100,6 +106,46 @@ ${D}${libdir}/pkgconfig/*.pc
         self.parseExpression("foo=$(echo bar)")
         self.assertExecs(set(["echo"]))
 
+    def test_assign_subshell_expansion_quotes(self):
+        self.parseExpression('foo="$(echo bar)"')
+        self.assertExecs(set(["echo"]))
+
+    def test_assign_subshell_expansion_nested(self):
+        self.parseExpression('foo="$(func1 "$(func2 bar$(func3))")"')
+        self.assertExecs(set(["func1", "func2", "func3"]))
+
+    def test_assign_subshell_expansion_multiple(self):
+        self.parseExpression('foo="$(func1 "$(func2)") $(func3)"')
+        self.assertExecs(set(["func1", "func2", "func3"]))
+
+    def test_assign_subshell_expansion_escaped_quotes(self):
+        self.parseExpression('foo="\\"fo\\"o$(func1)"')
+        self.assertExecs(set(["func1"]))
+
+    def test_assign_subshell_expansion_empty(self):
+        self.parseExpression('foo="bar$()foo"')
+        self.assertExecs(set())
+
+    def test_assign_subshell_backticks(self):
+        self.parseExpression("foo=`echo bar`")
+        self.assertExecs(set(["echo"]))
+
+    def test_assign_subshell_backticks_quotes(self):
+        self.parseExpression('foo="`echo bar`"')
+        self.assertExecs(set(["echo"]))
+
+    def test_assign_subshell_backticks_multiple(self):
+        self.parseExpression('foo="`func1 bar` `func2`"')
+        self.assertExecs(set(["func1", "func2"]))
+
+    def test_assign_subshell_backticks_escaped_quotes(self):
+        self.parseExpression('foo="\\"fo\\"o`func1`"')
+        self.assertExecs(set(["func1"]))
+
+    def test_assign_subshell_backticks_empty(self):
+        self.parseExpression('foo="bar``foo"')
+        self.assertExecs(set())
+
     def test_shell_unexpanded(self):
         self.setEmptyVars(["QT_BASE_NAME"])
         self.parseExpression('echo "${QT_BASE_NAME}"')
@@ -430,11 +476,37 @@ esac
         self.assertEqual(deps, set(["TESTVAR2"]))
         self.assertEqual(self.d.getVar('ANOTHERVAR').split(), ['testval3', 'anothervalue'])
 
+    def test_contains_vardeps_override_operators(self):
+        # Check override operators handle dependencies correctly with the contains functionality
+        expr_plain = 'testval'
+        expr_prepend = '${@bb.utils.filter("TESTVAR1", "testval1", d)} '
+        expr_append = ' ${@bb.utils.filter("TESTVAR2", "testval2", d)}'
+        expr_remove = '${@bb.utils.contains("TESTVAR3", "no-testval", "testval", "", d)}'
+        # Check dependencies
+        self.d.setVar('ANOTHERVAR', expr_plain)
+        self.d.prependVar('ANOTHERVAR', expr_prepend)
+        self.d.appendVar('ANOTHERVAR', expr_append)
+        self.d.setVar('ANOTHERVAR:remove', expr_remove)
+        self.d.setVar('TESTVAR1', 'blah')
+        self.d.setVar('TESTVAR2', 'testval2')
+        self.d.setVar('TESTVAR3', 'no-testval')
+        deps, values = bb.data.build_dependencies("ANOTHERVAR", set(self.d.keys()), set(), set(), set(), set(), self.d, self.d)
+        self.assertEqual(sorted(values.splitlines()),
+                         sorted([
+                          expr_prepend + expr_plain + expr_append,
+                          '_remove of ' + expr_remove,
+                          'TESTVAR1{testval1} = Unset',
+                          'TESTVAR2{testval2} = Set',
+                          'TESTVAR3{no-testval} = Set',
+                          ]))
+        # Check final value
+        self.assertEqual(self.d.getVar('ANOTHERVAR').split(), ['testval2'])
+
     #Currently no wildcard support
     #def test_vardeps_wildcards(self):
     #    self.d.setVar("oe_libinstall", "echo test")
     #    self.d.setVar("FOO", "foo=oe_libinstall; eval $foo")
     #    self.d.setVarFlag("FOO", "vardeps", "oe_*")
-    #    self.assertEquals(deps, set(["oe_libinstall"]))
+    #    self.assertEqual(deps, set(["oe_libinstall"]))
 
 

bitbake/lib/bb/tests/compression.py

@@ -66,8 +66,8 @@ class CompressionTests(object):
 
 class LZ4Tests(CompressionTests, unittest.TestCase):
     def setUp(self):
-        if shutil.which("lz4c") is None:
-            self.skipTest("'lz4c' not found")
+        if shutil.which("lz4") is None:
+            self.skipTest("'lz4' not found")
         super().setUp()
 
     @contextlib.contextmanager

bitbake/lib/bb/tests/data.py

@@ -77,6 +77,18 @@ class DataExpansions(unittest.TestCase):
         val = self.d.expand("${@d.getVar('foo') + ' ${bar}'}")
         self.assertEqual(str(val), "value_of_foo value_of_bar")
 
+    def test_python_snippet_function_reference(self):
+        self.d.setVar("TESTVAL", "testvalue")
+        self.d.setVar("testfunc", 'd.getVar("TESTVAL")')
+        context = bb.utils.get_context()
+        context["testfunc"] = lambda d: d.getVar("TESTVAL")
+        val = self.d.expand("${@testfunc(d)}")
+        self.assertEqual(str(val), "testvalue")
+
+    def test_python_snippet_builtin_metadata(self):
+        self.d.setVar("eval", "INVALID")
+        self.d.expand("${@eval('3')}")
+
     def test_python_unexpanded(self):
         self.d.setVar("bar", "${unsetvar}")
         val = self.d.expand("${@d.getVar('foo') + ' ${bar}'}")
@@ -383,6 +395,16 @@ class TestOverrides(unittest.TestCase):
         self.d.setVar("OVERRIDES", "foo:bar:some_val")
         self.assertEqual(self.d.getVar("TEST"), "testvalue3")
 
+    # Test an override with _<numeric> in it based on a real world OE issue
+    def test_underscore_override_2(self):
+        self.d.setVar("TARGET_ARCH", "x86_64")
+        self.d.setVar("PN", "test-${TARGET_ARCH}")
+        self.d.setVar("VERSION", "1")
+        self.d.setVar("VERSION:pn-test-${TARGET_ARCH}", "2")
+        self.d.setVar("OVERRIDES", "pn-${PN}")
+        bb.data.expandKeys(self.d)
+        self.assertEqual(self.d.getVar("VERSION"), "2")
+
     def test_remove_with_override(self):
         self.d.setVar("TEST:bar", "testvalue2")
         self.d.setVar("TEST:some_val", "testvalue3 testvalue5")
@@ -404,16 +426,6 @@ class TestOverrides(unittest.TestCase):
         self.d.setVar("TEST:bar:append", "testvalue2")
         self.assertEqual(self.d.getVar("TEST"), "testvalue2")
 
-    # Test an override with _<numeric> in it based on a real world OE issue
-    def test_underscore_override(self):
-        self.d.setVar("TARGET_ARCH", "x86_64")
-        self.d.setVar("PN", "test-${TARGET_ARCH}")
-        self.d.setVar("VERSION", "1")
-        self.d.setVar("VERSION:pn-test-${TARGET_ARCH}", "2")
-        self.d.setVar("OVERRIDES", "pn-${PN}")
-        bb.data.expandKeys(self.d)
-        self.assertEqual(self.d.getVar("VERSION"), "2")
-
     def test_append_and_unused_override(self):
         # Had a bug where an unused override append could return "" instead of None
         self.d.setVar("BAR:append:unusedoverride", "testvalue2")
@@ -438,17 +450,64 @@ class TestFlags(unittest.TestCase):
         self.d = bb.data.init()
         self.d.setVar("foo", "value of foo")
         self.d.setVarFlag("foo", "flag1", "value of flag1")
+        self.d.setVarFlag("foo", "_defaultval_flag_flag1", "default of flag1")
         self.d.setVarFlag("foo", "flag2", "value of flag2")
+        self.d.setVarFlag("foo", "_defaultval_flag_flag2", "default of flag2")
+        self.d.setVarFlag("foo", "flag3", "value of flag3")
+        self.d.setVarFlag("foo", "_defaultval_flag_flagnovalue", "default of flagnovalue")
 
     def test_setflag(self):
         self.assertEqual(self.d.getVarFlag("foo", "flag1", False), "value of flag1")
         self.assertEqual(self.d.getVarFlag("foo", "flag2", False), "value of flag2")
+        self.assertDictEqual(
+            self.d.getVarFlags("foo"),
+            {
+                "flag1": "value of flag1",
+                "flag2": "value of flag2",
+                "flag3": "value of flag3",
+                "flagnovalue": "default of flagnovalue",
+            }
+        )
+        self.assertDictEqual(
+            self.d.getVarFlags("foo", internalflags=True),
+            {
+                "_content": "value of foo",
+                "flag1": "value of flag1",
+                "flag2": "value of flag2",
+                "flag3": "value of flag3",
+                "_defaultval_flag_flag1": "default of flag1",
+                "_defaultval_flag_flag2": "default of flag2",
+                "_defaultval_flag_flagnovalue": "default of flagnovalue",
+            }
+        )
 
     def test_delflag(self):
         self.d.delVarFlag("foo", "flag2")
+        self.d.delVarFlag("foo", "flag3")
         self.assertEqual(self.d.getVarFlag("foo", "flag1", False), "value of flag1")
         self.assertEqual(self.d.getVarFlag("foo", "flag2", False), None)
+        self.assertDictEqual(
+            self.d.getVarFlags("foo"),
+            {
+                "flag1": "value of flag1",
+                "flagnovalue": "default of flagnovalue",
+            }
+        )
+        self.assertDictEqual(
+            self.d.getVarFlags("foo", internalflags=True),
+            {
+                "_content": "value of foo",
+                "flag1": "value of flag1",
+                "_defaultval_flag_flag1": "default of flag1",
+                "_defaultval_flag_flagnovalue": "default of flagnovalue",
+            }
+        )
 
+    def test_delvar(self):
+        self.d.delVar("foo")
+        self.assertEqual(self.d.getVarFlag("foo", "flag1", False), None)
+        self.assertEqual(self.d.getVarFlag("foo", "flag2", False), None)
+        self.assertEqual(self.d.getVarFlags("foo", internalflags=True), None)
 
 class Contains(unittest.TestCase):
     def setUp(self):

bitbake/lib/bb/tests/event.py

@@ -13,6 +13,7 @@ import pickle
 import threading
 import time
 import unittest
+import tempfile
 from unittest.mock import Mock
 from unittest.mock import call
 
@@ -468,6 +469,8 @@ class EventClassesTest(unittest.TestCase):
 
     def setUp(self):
         bb.event.worker_pid = EventClassesTest._worker_pid
+        self.d = bb.data.init()
+        bb.parse.siggen = bb.siggen.init(self.d)
 
     def test_Event(self):
         """ Test the Event base class """
@@ -950,3 +953,24 @@ class EventClassesTest(unittest.TestCase):
         event = bb.event.FindSigInfoResult(result)
         self.assertEqual(event.result, result)
         self.assertEqual(event.pid, EventClassesTest._worker_pid)
+
+    def test_lineno_in_eventhandler(self):
+        # The error lineno is 5, not 4 since the first line is '\n'
+        error_line = """
+# Comment line1
+# Comment line2
+python test_lineno_in_eventhandler() {
+    This is an error line
+}
+addhandler test_lineno_in_eventhandler
+test_lineno_in_eventhandler[eventmask] = "bb.event.ConfigParsed"
+"""
+
+        with self.assertLogs() as logs:
+            f = tempfile.NamedTemporaryFile(suffix = '.bb')
+            f.write(bytes(error_line, "utf-8"))
+            f.flush()
+            d = bb.parse.handle(f.name, self.d)['']
+
+        output = "".join(logs.output)
+        self.assertTrue(" line 5\n" in output)

bitbake/lib/bb/tests/parse.py

@@ -75,6 +75,59 @@ unset B[flag]
         self.assertEqual(d.getVarFlag("A","flag"), None)
         self.assertEqual(d.getVar("B"), "2")
 
+    defaulttest = """
+A = "set value"
+A ??= "default value"
+
+A[flag_set_vs_question] = "set flag"
+A[flag_set_vs_question] ?= "question flag"
+
+A[flag_set_vs_default] = "set flag"
+A[flag_set_vs_default] ??= "default flag"
+
+A[flag_question] ?= "question flag"
+
+A[flag_default] ??= "default flag"
+
+A[flag_question_vs_default] ?= "question flag"
+A[flag_question_vs_default] ??= "default flag"
+
+A[flag_default_vs_question] ??= "default flag"
+A[flag_default_vs_question] ?= "question flag"
+
+A[flag_set_question_default] = "set flag"
+A[flag_set_question_default] ?= "question flag"
+A[flag_set_question_default] ??= "default flag"
+
+A[flag_set_default_question] = "set flag"
+A[flag_set_default_question] ??= "default flag"
+A[flag_set_default_question] ?= "question flag"
+
+A[flag_set_twice] = "set flag first"
+A[flag_set_twice] = "set flag second"
+
+A[flag_question_twice] ?= "question flag first"
+A[flag_question_twice] ?= "question flag second"
+
+A[flag_default_twice] ??= "default flag first"
+A[flag_default_twice] ??= "default flag second"
+"""
+    def test_parse_defaulttest(self):
+        f = self.parsehelper(self.defaulttest)
+        d = bb.parse.handle(f.name, self.d)['']
+        self.assertEqual(d.getVar("A"), "set value")
+        self.assertEqual(d.getVarFlag("A","flag_set_vs_question"), "set flag")
+        self.assertEqual(d.getVarFlag("A","flag_set_vs_default"), "set flag")
+        self.assertEqual(d.getVarFlag("A","flag_question"), "question flag")
+        self.assertEqual(d.getVarFlag("A","flag_default"), "default flag")
+        self.assertEqual(d.getVarFlag("A","flag_question_vs_default"), "question flag")
+        self.assertEqual(d.getVarFlag("A","flag_default_vs_question"), "question flag")
+        self.assertEqual(d.getVarFlag("A","flag_set_question_default"), "set flag")
+        self.assertEqual(d.getVarFlag("A","flag_set_default_question"), "set flag")
+        self.assertEqual(d.getVarFlag("A","flag_set_twice"), "set flag second")
+        self.assertEqual(d.getVarFlag("A","flag_question_twice"), "question flag first")
+        self.assertEqual(d.getVarFlag("A","flag_default_twice"), "default flag second")
+
     exporttest = """
 A = "a"
 export B = "b"
@@ -177,7 +230,19 @@ python () {
 
     addtask_deltask = """
 addtask do_patch after do_foo after do_unpack before do_configure before do_compile
-addtask do_fetch do_patch
+addtask do_fetch2 do_patch2
+
+addtask do_myplaintask
+addtask do_myplaintask2
+deltask do_myplaintask2
+addtask do_mytask# comment
+addtask do_mytask2 # comment2
+addtask do_mytask3
+deltask do_mytask3# comment
+deltask do_mytask4 # comment2
+
+# Ensure a missing task prefix on after works
+addtask do_mytask5 after mytask
 
 MYVAR = "do_patch"
 EMPTYVAR = ""
@@ -185,15 +250,12 @@ deltask do_fetch ${MYVAR} ${EMPTYVAR}
 deltask ${EMPTYVAR}
 """
     def test_parse_addtask_deltask(self):
-        import sys
+
         f = self.parsehelper(self.addtask_deltask)
         d = bb.parse.handle(f.name, self.d)['']
 
-        stdout = sys.stdout.getvalue()
-        self.assertTrue("addtask contained multiple 'before' keywords" in stdout)
-        self.assertTrue("addtask contained multiple 'after' keywords" in stdout)
-        self.assertTrue('addtask ignored: " do_patch"' in stdout)
-        #self.assertTrue('dependent task do_foo for do_patch does not exist' in stdout)
+        self.assertSequenceEqual(['do_fetch2', 'do_patch2', 'do_myplaintask', 'do_mytask', 'do_mytask2', 'do_mytask5'], bb.build.listtasks(d))
+        self.assertEqual(['do_mytask'], d.getVarFlag("do_mytask5", "deps"))
 
     broken_multiline_comment = """
 # First line of comment \\
@@ -241,3 +303,163 @@ unset A[flag@.service]
         with self.assertRaises(bb.parse.ParseError):
             d = bb.parse.handle(f.name, self.d)['']
 
+    export_function_recipe = """
+inherit someclass
+"""
+
+    export_function_recipe2 = """
+inherit someclass
+
+do_compile () {
+    false
+}
+
+python do_compilepython () {
+    bb.note("Something else")
+}
+
+"""
+    export_function_class = """
+someclass_do_compile() {
+    true
+}
+
+python someclass_do_compilepython () {
+    bb.note("Something")
+}
+
+EXPORT_FUNCTIONS do_compile do_compilepython
+"""
+
+    export_function_class2 = """
+secondclass_do_compile() {
+    true
+}
+
+python secondclass_do_compilepython () {
+    bb.note("Something")
+}
+
+EXPORT_FUNCTIONS do_compile do_compilepython
+"""
+
+    def test_parse_export_functions(self):
+        def check_function_flags(d):
+            self.assertEqual(d.getVarFlag("do_compile", "func"), 1)
+            self.assertEqual(d.getVarFlag("do_compilepython", "func"), 1)
+            self.assertEqual(d.getVarFlag("do_compile", "python"), None)
+            self.assertEqual(d.getVarFlag("do_compilepython", "python"), "1")
+
+        with tempfile.TemporaryDirectory() as tempdir:
+            self.d.setVar("__bbclasstype", "recipe")
+            recipename = tempdir + "/recipe.bb"
+            os.makedirs(tempdir + "/classes")
+            with open(tempdir + "/classes/someclass.bbclass", "w") as f:
+                f.write(self.export_function_class)
+                f.flush()
+            with open(tempdir + "/classes/secondclass.bbclass", "w") as f:
+                f.write(self.export_function_class2)
+                f.flush()
+
+            with open(recipename, "w") as f:
+                f.write(self.export_function_recipe)
+                f.flush()
+            os.chdir(tempdir)
+            d = bb.parse.handle(recipename, bb.data.createCopy(self.d))['']
+            self.assertIn("someclass_do_compile", d.getVar("do_compile"))
+            self.assertIn("someclass_do_compilepython", d.getVar("do_compilepython"))
+            check_function_flags(d)
+
+            recipename2 = tempdir + "/recipe2.bb"
+            with open(recipename2, "w") as f:
+                f.write(self.export_function_recipe2)
+                f.flush()
+
+            d = bb.parse.handle(recipename2, bb.data.createCopy(self.d))['']
+            self.assertNotIn("someclass_do_compile", d.getVar("do_compile"))
+            self.assertNotIn("someclass_do_compilepython", d.getVar("do_compilepython"))
+            self.assertIn("false", d.getVar("do_compile"))
+            self.assertIn("else", d.getVar("do_compilepython"))
+            check_function_flags(d)
+
+            with open(recipename, "a+") as f:
+                f.write("\ninherit secondclass\n")
+                f.flush()
+            with open(recipename2, "a+") as f:
+                f.write("\ninherit secondclass\n")
+                f.flush()
+
+            d = bb.parse.handle(recipename, bb.data.createCopy(self.d))['']
+            self.assertIn("secondclass_do_compile", d.getVar("do_compile"))
+            self.assertIn("secondclass_do_compilepython", d.getVar("do_compilepython"))
+            check_function_flags(d)
+
+            d = bb.parse.handle(recipename2, bb.data.createCopy(self.d))['']
+            self.assertNotIn("someclass_do_compile", d.getVar("do_compile"))
+            self.assertNotIn("someclass_do_compilepython", d.getVar("do_compilepython"))
+            self.assertIn("false", d.getVar("do_compile"))
+            self.assertIn("else", d.getVar("do_compilepython"))
+            check_function_flags(d)
+
+    export_function_unclosed_tab = """
+do_compile () {
+       bb.note("Something")
+\t}
+"""
+    export_function_unclosed_space = """
+do_compile () {
+       bb.note("Something")
+ }
+"""
+    export_function_residue = """
+do_compile () {
+       bb.note("Something")
+}
+
+include \\
+"""
+
+    def test_unclosed_functions(self):
+        def test_helper(content, expected_error):
+            with tempfile.TemporaryDirectory() as tempdir:
+                recipename = tempdir + "/recipe_unclosed.bb"
+                with open(recipename, "w") as f:
+                    f.write(content)
+                    f.flush()
+                os.chdir(tempdir)
+                with self.assertRaises(bb.parse.ParseError) as error:
+                    bb.parse.handle(recipename, bb.data.createCopy(self.d))
+                self.assertIn(expected_error, str(error.exception))
+
+        with tempfile.TemporaryDirectory() as tempdir:
+            test_helper(self.export_function_unclosed_tab, "Unparsed lines from unclosed function")
+            test_helper(self.export_function_unclosed_space, "Unparsed lines from unclosed function")
+            test_helper(self.export_function_residue, "Unparsed lines")
+
+            recipename_closed = tempdir + "/recipe_closed.bb"
+            with open(recipename_closed, "w") as in_file:
+                lines = self.export_function_unclosed_tab.split("\n")
+                lines[3] = "}"
+                in_file.write("\n".join(lines))
+                in_file.flush()
+            bb.parse.handle(recipename_closed, bb.data.createCopy(self.d))
+
+    special_character_assignment = """
+A+="a"
+A+ = "b"
++ = "c"
+"""
+    ambigous_assignment = """
++= "d"
+"""
+    def test_parse_special_character_assignment(self):
+        f = self.parsehelper(self.special_character_assignment)
+        d = bb.parse.handle(f.name, self.d)['']
+        self.assertEqual(d.getVar("A"), " a")
+        self.assertEqual(d.getVar("A+"), "b")
+        self.assertEqual(d.getVar("+"), "c")
+
+        f = self.parsehelper(self.ambigous_assignment)
+        with self.assertRaises(bb.parse.ParseError) as error:
+            bb.parse.handle(f.name, self.d)
+        self.assertIn("Empty variable name in assignment", str(error.exception))

bitbake/lib/bb/tests/persist_data.py

@@ -1,129 +0,0 @@
-#
-# BitBake Test for lib/bb/persist_data/
-#
-# Copyright (C) 2018 Garmin Ltd.
-#
-# SPDX-License-Identifier: GPL-2.0-only
-#
-
-import unittest
-import bb.data
-import bb.persist_data
-import tempfile
-import threading
-
-class PersistDataTest(unittest.TestCase):
-    def _create_data(self):
-        return bb.persist_data.persist('TEST_PERSIST_DATA', self.d)
-
-    def setUp(self):
-        self.d = bb.data.init()
-        self.tempdir = tempfile.TemporaryDirectory()
-        self.d['PERSISTENT_DIR'] = self.tempdir.name
-        self.data = self._create_data()
-        self.items = {
-                'A1': '1',
-                'B1': '2',
-                'C2': '3'
-                }
-        self.stress_count = 10000
-        self.thread_count = 5
-
-        for k,v in self.items.items():
-            self.data[k] = v
-
-    def tearDown(self):
-        self.tempdir.cleanup()
-
-    def _iter_helper(self, seen, iterator):
-        with iter(iterator):
-            for v in iterator:
-                self.assertTrue(v in seen)
-                seen.remove(v)
-        self.assertEqual(len(seen), 0, '%s not seen' % seen)
-
-    def test_get(self):
-        for k, v in self.items.items():
-            self.assertEqual(self.data[k], v)
-
-        self.assertIsNone(self.data.get('D'))
-        with self.assertRaises(KeyError):
-            self.data['D']
-
-    def test_set(self):
-        for k, v in self.items.items():
-            self.data[k] += '-foo'
-
-        for k, v in self.items.items():
-            self.assertEqual(self.data[k], v + '-foo')
-
-    def test_delete(self):
-        self.data['D'] = '4'
-        self.assertEqual(self.data['D'], '4')
-        del self.data['D']
-        self.assertIsNone(self.data.get('D'))
-        with self.assertRaises(KeyError):
-            self.data['D']
-
-    def test_contains(self):
-        for k in self.items:
-            self.assertTrue(k in self.data)
-            self.assertTrue(self.data.has_key(k))
-        self.assertFalse('NotFound' in self.data)
-        self.assertFalse(self.data.has_key('NotFound'))
-
-    def test_len(self):
-        self.assertEqual(len(self.data), len(self.items))
-
-    def test_iter(self):
-        self._iter_helper(set(self.items.keys()), self.data)
-
-    def test_itervalues(self):
-        self._iter_helper(set(self.items.values()), self.data.itervalues())
-
-    def test_iteritems(self):
-        self._iter_helper(set(self.items.items()), self.data.iteritems())
-
-    def test_get_by_pattern(self):
-        self._iter_helper({'1', '2'}, self.data.get_by_pattern('_1'))
-
-    def _stress_read(self, data):
-        for i in range(self.stress_count):
-            for k in self.items:
-                data[k]
-
-    def _stress_write(self, data):
-        for i in range(self.stress_count):
-            for k, v in self.items.items():
-                data[k] = v + str(i)
-
-    def _validate_stress(self):
-        for k, v in self.items.items():
-            self.assertEqual(self.data[k], v + str(self.stress_count - 1))
-
-    def test_stress(self):
-        self._stress_read(self.data)
-        self._stress_write(self.data)
-        self._validate_stress()
-
-    def test_stress_threads(self):
-        def read_thread():
-            data = self._create_data()
-            self._stress_read(data)
-
-        def write_thread():
-            data = self._create_data()
-            self._stress_write(data)
-
-        threads = []
-        for i in range(self.thread_count):
-            threads.append(threading.Thread(target=read_thread))
-            threads.append(threading.Thread(target=write_thread))
-
-        for t in threads:
-            t.start()
-        self._stress_read(self.data)
-        for t in threads:
-            t.join()
-        self._validate_stress()
-

bitbake/lib/bb/tests/runqueue-tests/classes/base.bbclass

@@ -9,7 +9,7 @@ def stamptask(d):
     with open(stampname, "a+") as f:
         f.write(d.getVar("BB_UNIHASH") + "\n")
 
-    if d.getVar("BB_CURRENT_MC") != "default":
+    if d.getVar("BB_CURRENT_MC") != "":
         thistask = d.expand("${BB_CURRENT_MC}:${PN}:${BB_CURRENTTASK}")
     if thistask in d.getVar("SLOWTASKS").split():
         bb.note("Slowing task %s" % thistask)

bitbake/lib/bb/tests/runqueue-tests/recipes/g1.bb

@@ -0,0 +1,2 @@
+do_build[mcdepends] = "mc::mc-1:h1:do_invalid"
+

bitbake/lib/bb/tests/runqueue.py

@@ -26,7 +26,7 @@ class RunQueueTests(unittest.TestCase):
     a1_sstatevalid = "a1:do_package a1:do_package_qa a1:do_packagedata a1:do_package_write_ipk a1:do_package_write_rpm a1:do_populate_lic a1:do_populate_sysroot"
     b1_sstatevalid = "b1:do_package b1:do_package_qa b1:do_packagedata b1:do_package_write_ipk b1:do_package_write_rpm b1:do_populate_lic b1:do_populate_sysroot"
 
-    def run_bitbakecmd(self, cmd, builddir, sstatevalid="", slowtasks="", extraenv=None, cleanup=False):
+    def run_bitbakecmd(self, cmd, builddir, sstatevalid="", slowtasks="", extraenv=None, cleanup=False, allowfailure=False):
         env = os.environ.copy()
         env["BBPATH"] = os.path.realpath(os.path.join(os.path.dirname(__file__), "runqueue-tests"))
         env["BB_ENV_PASSTHROUGH_ADDITIONS"] = "SSTATEVALID SLOWTASKS TOPDIR"
@@ -41,6 +41,8 @@ class RunQueueTests(unittest.TestCase):
             output = subprocess.check_output(cmd, env=env, stderr=subprocess.STDOUT,universal_newlines=True, cwd=builddir)
             print(output)
         except subprocess.CalledProcessError as e:
+            if allowfailure:
+                return e.output
             self.fail("Command %s failed with %s" % (cmd, e.output))
         tasks = []
         tasklog = builddir + "/task.log"
@@ -314,6 +316,13 @@ class RunQueueTests(unittest.TestCase):
                        ["mc_2:a1:%s" % t for t in rerun_tasks]
             self.assertEqual(set(tasks), set(expected))
 
+            # Check that a multiconfig that doesn't exist rasies a correct error message
+            error_output = self.run_bitbakecmd(["bitbake", "g1"], tempdir, "", extraenv=extraenv, cleanup=True, allowfailure=True)
+            self.assertIn("non-existent task", error_output)
+            # If the word 'Traceback' or 'KeyError' is in the output we've regressed
+            self.assertNotIn("Traceback", error_output)
+            self.assertNotIn("KeyError", error_output)
+
             self.shutdown(tempdir)
 
     def test_hashserv_single(self):

bitbake/lib/bb/tests/siggen.py

@@ -17,75 +17,12 @@ import bb.siggen
 
 class SiggenTest(unittest.TestCase):
 
-    def test_clean_basepath_simple_target_basepath(self):
-        basepath = '/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask'
-        expected_cleaned = 'helloworld/helloworld_1.2.3.bb:do_sometask'
+    def test_build_pnid(self):
+        tests = {
+            ('', 'helloworld', 'do_sometask') : 'helloworld:do_sometask',
+            ('XX', 'helloworld', 'do_sometask') : 'mc:XX:helloworld:do_sometask',
+        }
 
-        actual_cleaned = bb.siggen.clean_basepath(basepath)
+        for t in tests:
+            self.assertEqual(bb.siggen.build_pnid(*t), tests[t])
 
-        self.assertEqual(actual_cleaned, expected_cleaned)
-
-    def test_clean_basepath_basic_virtual_basepath(self):
-        basepath = 'virtual:something:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask'
-        expected_cleaned = 'helloworld/helloworld_1.2.3.bb:do_sometask:virtual:something'
-
-        actual_cleaned = bb.siggen.clean_basepath(basepath)
-
-        self.assertEqual(actual_cleaned, expected_cleaned)
-
-    def test_clean_basepath_mc_basepath(self):
-        basepath = 'mc:somemachine:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask'
-        expected_cleaned = 'helloworld/helloworld_1.2.3.bb:do_sometask:mc:somemachine'
-
-        actual_cleaned = bb.siggen.clean_basepath(basepath)
-
-        self.assertEqual(actual_cleaned, expected_cleaned)
-
-    def test_clean_basepath_virtual_long_prefix_basepath(self):
-        basepath = 'virtual:something:A:B:C:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask'
-        expected_cleaned = 'helloworld/helloworld_1.2.3.bb:do_sometask:virtual:something:A:B:C'
-
-        actual_cleaned = bb.siggen.clean_basepath(basepath)
-
-        self.assertEqual(actual_cleaned, expected_cleaned)
-
-    def test_clean_basepath_mc_virtual_basepath(self):
-        basepath = 'mc:somemachine:virtual:something:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask'
-        expected_cleaned = 'helloworld/helloworld_1.2.3.bb:do_sometask:virtual:something:mc:somemachine'
-
-        actual_cleaned = bb.siggen.clean_basepath(basepath)
-
-        self.assertEqual(actual_cleaned, expected_cleaned)
-
-    def test_clean_basepath_mc_virtual_long_prefix_basepath(self):
-        basepath = 'mc:X:virtual:something:C:B:A:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask'
-        expected_cleaned = 'helloworld/helloworld_1.2.3.bb:do_sometask:virtual:something:C:B:A:mc:X'
-
-        actual_cleaned = bb.siggen.clean_basepath(basepath)
-
-        self.assertEqual(actual_cleaned, expected_cleaned)
-
-
-    # def test_clean_basepath_performance(self):
-    #     input_basepaths = [
-    #         'mc:X:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask',
-    #         'mc:X:virtual:something:C:B:A:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask',
-    #         'virtual:something:C:B:A:/different/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask',
-    #         'virtual:something:A:/full/path/to/poky/meta/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask',
-    #         '/this/is/most/common/input/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask',
-    #         '/and/should/be/tested/with/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask',
-    #         '/more/weight/recipes-whatever/helloworld/helloworld_1.2.3.bb:do_sometask',
-    #     ]
-
-    #     time_start = time.time()
-
-    #     i = 2000000
-    #     while i >= 0:
-    #         for basepath in input_basepaths:
-    #             bb.siggen.clean_basepath(basepath)
-    #         i -= 1
-
-    #     elapsed = time.time() - time_start
-    #     print('{} ({}s)'.format(self.id(), round(elapsed, 3)))
-
-    #     self.assertTrue(False)

bitbake/lib/bb/tests/utils.py

@@ -130,6 +130,14 @@ class Checksum(unittest.TestCase):
             checksum = bb.utils.sha256_file(f.name)
             self.assertEqual(checksum, "fcfbae8bf6b721dbb9d2dc6a9334a58f2031a9a9b302999243f99da4d7f12d0f")
 
+    def test_goh1(self):
+        import hashlib
+        with tempfile.NamedTemporaryFile() as f:
+            f.write(self.filler)
+            f.flush()
+            checksum = bb.utils.goh1_file(f.name)
+            self.assertEqual(checksum, "81191f04d4abf413e5badd234814e4202d9efa73e6f9437e9ddd6b8165b569ef")
+
 class EditMetadataFile(unittest.TestCase):
     _origfile = """
 # A comment

bitbake/lib/bb/tinfoil.py

@@ -188,11 +188,19 @@ class TinfoilCookerAdapter:
             self._cache[name] = attrvalue
             return attrvalue
 
+    class TinfoilSkiplistByMcAdapter:
+        def __init__(self, tinfoil):
+            self.tinfoil = tinfoil
+
+        def __getitem__(self, mc):
+            return self.tinfoil.get_skipped_recipes(mc)
+
     def __init__(self, tinfoil):
         self.tinfoil = tinfoil
         self.multiconfigs = [''] + (tinfoil.config_data.getVar('BBMULTICONFIG') or '').split()
         self.collections = {}
         self.recipecaches = {}
+        self.skiplist_by_mc = self.TinfoilSkiplistByMcAdapter(tinfoil)
         for mc in self.multiconfigs:
             self.collections[mc] = self.TinfoilCookerCollectionAdapter(tinfoil, mc)
             self.recipecaches[mc] = self.TinfoilRecipeCacheAdapter(tinfoil, mc)
@@ -201,8 +209,6 @@ class TinfoilCookerAdapter:
         # Grab these only when they are requested since they aren't always used
         if name in self._cache:
             return self._cache[name]
-        elif name == 'skiplist':
-            attrvalue = self.tinfoil.get_skipped_recipes()
         elif name == 'bbfile_config_priorities':
             ret = self.tinfoil.run_command('getLayerPriorities')
             bbfile_config_priorities = []
@@ -325,11 +331,11 @@ class Tinfoil:
         self.recipes_parsed = False
         self.quiet = 0
         self.oldhandlers = self.logger.handlers[:]
+        self.localhandlers = []
         if setup_logging:
             # This is the *client-side* logger, nothing to do with
             # logging messages from the server
             bb.msg.logger_create('BitBake', output)
-            self.localhandlers = []
             for handler in self.logger.handlers:
                 if handler not in self.oldhandlers:
                     self.localhandlers.append(handler)
@@ -449,6 +455,12 @@ class Tinfoil:
         self.run_actions(config_params)
         self.recipes_parsed = True
 
+    def modified_files(self):
+        """
+        Notify the server it needs to revalidate it's caches since the client has modified files
+        """
+        self.run_command("revalidateCaches")
+
     def run_command(self, command, *params, handle_events=True):
         """
         Run a command on the server (as implemented in bb.command).
@@ -508,12 +520,12 @@ class Tinfoil:
         """
         return defaultdict(list, self.run_command('getOverlayedRecipes', mc))
 
-    def get_skipped_recipes(self):
+    def get_skipped_recipes(self, mc=''):
         """
         Find recipes which were skipped (i.e. SkipRecipe was raised
         during parsing).
         """
-        return OrderedDict(self.run_command('getSkippedRecipes'))
+        return OrderedDict(self.run_command('getSkippedRecipes', mc))
 
     def get_all_providers(self, mc=''):
         return defaultdict(list, self.run_command('allProviders', mc))
@@ -527,6 +539,7 @@ class Tinfoil:
     def get_runtime_providers(self, rdep):
         return self.run_command('getRuntimeProviders', rdep)
 
+    # TODO: teach this method about mc
     def get_recipe_file(self, pn):
         """
         Get the file name for the specified recipe/target. Raises
@@ -535,6 +548,7 @@ class Tinfoil:
         """
         best = self.find_best_provider(pn)
         if not best or (len(best) > 3 and not best[3]):
+            # TODO: pass down mc
             skiplist = self.get_skipped_recipes()
             taskdata = bb.taskdata.TaskData(None, skiplist=skiplist)
             skipreasons = taskdata.get_reasons(pn)
@@ -627,6 +641,12 @@ class Tinfoil:
         fn = self.get_recipe_file(pn)
         return self.parse_recipe_file(fn)
 
+    def finalizeData(self):
+        """
+        Run anonymous functions and expand keys
+        """
+        return self._reconvert_type(self.run_command('finalizeData'), 'DataStoreConnectionHandle')
+
     def parse_recipe_file(self, fn, appends=True, appendlist=None, config_data=None):
         """
         Parse the specified recipe file (with or without bbappends)