base.bbclass: Rework staging function to use a DESTDIR style configuration based on the data from the do_install step. This falls back to any standard do_stage function if defined, see the mailing list for more info.

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

meta/classes/base.bbclass

@@ -976,15 +976,22 @@ sysroot_stage_dirs() {
 	sysroot_stage_dir $from${datadir} $to${STAGING_DATADIR}
 }
 
-
 sysroot_stage_all() {
 	sysroot_stage_dirs ${D} ${SYSROOT_DESTDIR}
 }
 
-
-base_do_stage () {
-	:
-}
+def is_legacy_staging(d):
+    stagefunc = bb.data.getVar('do_stage', d, True)
+    legacy = True
+    if stagefunc is None:
+        legacy = False
+    elif stagefunc.strip() == "autotools_stage_all":
+        legacy = False
+    elif stagefunc.strip() == "do_stage_native" and bb.data.getVar('AUTOTOOLS_NATIVE_STAGE_INSTALL', d, 1) == "1":
+        legacy = False
+    if bb.data.getVar('PSTAGE_BROKEN_DESTDIR', d, 1) == "1":
+        legacy = True
+    return legacy
 
 do_populate_staging[dirs] = "${STAGING_DIR_TARGET}/${bindir} ${STAGING_DIR_TARGET}/${libdir} \
 			     ${STAGING_DIR_TARGET}/${includedir} \
@@ -996,19 +1003,60 @@ do_populate_staging[dirs] = "${STAGING_DIR_TARGET}/${bindir} ${STAGING_DIR_TARGE
 # Could be compile but populate_staging and do_install shouldn't run at the same time
 addtask populate_staging after do_install
 
+PSTAGING_ACTIVE = "0"
 SYSROOT_PREPROCESS_FUNCS ?= ""
 SYSROOT_DESTDIR = "${WORKDIR}/sysroot-destdir/"
 SYSROOT_LOCK = "${STAGING_DIR}/staging.lock"
 
+python populate_staging_prehook () {
+	return
+}
+
+python populate_staging_posthook () {
+	return
+}
+
+packagedstageing_fastpath () {
+	:
+}
+
 python do_populate_staging () {
     #
-    # Only run do_stage if its not the empty default above
+    # if do_stage exists, we're legacy. In that case run the do_stage,
+    # modify the SYSROOT_DESTDIR variable and then run the staging preprocess
+    # functions against staging directly.
     #
-    stagefunc = bb.data.getVar('do_stage', d, 1).strip()
-    if stagefunc != "base_do_stage":
+    # Otherwise setup a destdir, copy the results from do_install
+    # and run the staging preprocess against that
+    #
+    pstageactive = (bb.data.getVar("PSTAGING_ACTIVE", d, True) == "1")
+    lockfile = bb.data.getVar("SYSROOT_LOCK", d, True)
+    stagefunc = bb.data.getVar('do_stage', d, True)
+    legacy = is_legacy_staging(d)
+    if legacy:
+        bb.data.setVar("SYSROOT_DESTDIR", "", d)
+        bb.note("Legacy staging mode for %s" % bb.data.getVar("FILE", d, True))
+        lock = bb.utils.lockfile(lockfile)
         bb.build.exec_func('do_stage', d)
+        bb.build.exec_func('populate_staging_prehook', d)
         for f in (bb.data.getVar('SYSROOT_PREPROCESS_FUNCS', d, True) or '').split():
             bb.build.exec_func(f, d)
+        bb.build.exec_func('populate_staging_posthook', d)
+        bb.utils.unlockfile(lock)
+    else:
+        dest = bb.data.getVar('D', d, True)
+        sysrootdest = bb.data.expand('${SYSROOT_DESTDIR}${STAGING_DIR_TARGET}', d)
+        bb.mkdirhier(sysrootdest)
+
+        bb.build.exec_func("sysroot_stage_all", d)
+        #os.system('cp -pPR %s/* %s/' % (dest, sysrootdest))
+        for f in (bb.data.getVar('SYSROOT_PREPROCESS_FUNCS', d, True) or '').split():
+            bb.build.exec_func(f, d)
+        bb.build.exec_func("packagedstageing_fastpath", d)
+
+        lock = bb.utils.lockfile(lockfile)
+        os.system('cp -pPR %s/* /' % (sysrootdest))
+        bb.utils.unlockfile(lock)
 }
 
 addtask install after do_compile
@@ -1149,6 +1197,8 @@ def base_after_parse(d):
 
 python () {
     base_after_parse(d)
+    if is_legacy_staging(d):
+        bb.debug(1, "Legacy staging mode for %s" % bb.data.getVar("FILE", d, True))
 }
 
 def check_app_exists(app, d):
@@ -1175,7 +1225,7 @@ inherit patch
 # Move to autotools.bbclass?
 inherit siteinfo
 
-EXPORT_FUNCTIONS do_setscene do_clean do_fetch do_unpack do_configure do_compile do_install do_package do_populate_pkgs do_stage do_rebuild do_fetchall
+EXPORT_FUNCTIONS do_setscene do_clean do_fetch do_unpack do_configure do_compile do_install do_package do_populate_pkgs do_rebuild do_fetchall
 
 MIRRORS[func] = "0"
 MIRRORS () {

meta/classes/packaged-staging.bbclass

@@ -63,29 +63,6 @@ python () {
            bb.data.setVarFlag('do_setscene', 'recrdeptask', deps, d)
 
         bb.data.setVar("PSTAGING_ACTIVE", "1", d)
-
-        #
-        # Here we notice if the staging function is one of our standard staging 
-        # routines. If it is, we can remvoe the need to lock staging and take 
-        # timestamps which gives a nice speedup
-        #
-        fastpath = False
-        stagefunc = bb.data.getVar('do_stage', d, 1).strip()
-        if stagefunc == "autotools_stage_all":
-            fastpath = True
-	elif stagefunc == "base_do_stage":
-            fastpath = True
-        elif stagefunc == "do_stage_native" and bb.data.getVar('AUTOTOOLS_NATIVE_STAGE_INSTALL', d, 1) == "1":
-            fastpath = True
-        if bb.data.getVar('PSTAGE_BROKEN_DESTDIR', d, 1) == "1":
-            fastpath = False
-        if fastpath:         
-            #bb.note("Optimised for staging: " + bb.data.getVar('FILE', d, 1))
-            bb.data.setVar("PSTAGING_NEEDSTAMP", "0", d)
-            bb.data.setVar("STAGE_TEMP_PREFIX", "${WORKDIR}/temp-staging-pstage", d)
-        else:
-            #bb.note("Can optimise staging better: " + bb.data.getVar('FILE', d, 1))
-            bb.data.setVar("PSTAGING_NEEDSTAMP", "1", d)
     else:
         bb.data.setVar("PSTAGING_ACTIVE", "0", d)
 }
@@ -320,30 +297,22 @@ populate_staging_postamble () {
 	fi
 }
 
-autotools_staging_pstage () {
-	mkdir -p ${PSTAGE_TMPDIR_STAGE}/staging/
-	cp -fpPR ${WORKDIR}/temp-staging-pstage/${STAGING_DIR}/* ${PSTAGE_TMPDIR_STAGE}/staging/ || /bin/true
-	cp -fpPR ${WORKDIR}/temp-staging-pstage/${STAGING_DIR}/* ${STAGING_DIR}/ || /bin/true
+packagedstageing_fastpath () {
+	if [ "$PSTAGING_ACTIVE" = "1" ]; then
+		mkdir -p ${PSTAGE_TMPDIR_STAGE}/staging/
+		mkdir -p ${PSTAGE_TMPDIR_STAGE}/cross/
+		cp -fpPR ${SYSROOT_DESTDIR}/${STAGING_DIR}/* ${PSTAGE_TMPDIR_STAGE}/staging/ || /bin/true
+		cp -fpPR ${SYSROOT_DESTDIR}/${CROSS_DIR}/* ${PSTAGE_TMPDIR_STAGE}/cross/ || /bin/true
+	fi
 }
 
 do_populate_staging[dirs] =+ "${DEPLOY_DIR_PSTAGE}"
-python do_populate_staging_prepend() {
-    needstamp = bb.data.getVar("PSTAGING_NEEDSTAMP", d, 1)
-    pstageactive = bb.data.getVar("PSTAGING_ACTIVE", d, True)
-    lock = bb.data.expand("${SYSROOT_LOCK}", d)
-    if needstamp == "1":
-        stamplock = bb.utils.lockfile(lock)
-        bb.build.exec_func("populate_staging_preamble", d)
+python populate_staging_prehook() {
+    bb.build.exec_func("populate_staging_preamble", d)
 }
 
-python do_populate_staging_append() {
-    if needstamp == "1":
-        bb.build.exec_func("populate_staging_postamble", d)
-        bb.utils.unlockfile(stamplock)
-    elif pstageactive == "1":
-        stamplock = bb.utils.lockfile(lock)
-        bb.build.exec_func("autotools_staging_pstage", d)
-        bb.utils.unlockfile(stamplock)
+python populate_staging_posthook() {
+    bb.build.exec_func("populate_staging_postamble", d)
 }