oe-build-perf-test: save test metadata in a separate file

The patch introduces a new metadata (.json or .xml) file in the output
directory. All test meta data, e.g. git revision information and tester
host information is now stored there. The JSON report format is slightly
changed as the metadata is not present in results.json anymore.

[YOCTO #10590]

(From OE-Core rev: 2036c646019660e32f1bc277fdec0cdbff0afdd4)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/oe-build-perf-test

@@ -17,8 +17,10 @@
 import argparse
 import errno
 import fcntl
+import json
 import logging
 import os
+import re
 import shutil
 import sys
 import unittest
@@ -27,11 +29,13 @@ from datetime import datetime
 sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)) + '/lib')
 import scriptpath
 scriptpath.add_oe_lib_path()
+scriptpath.add_bitbake_lib_path()
 import oeqa.buildperf
 from oeqa.buildperf import (BuildPerfTestLoader, BuildPerfTestResult,
                             BuildPerfTestRunner, KernelDropCaches)
 from oeqa.utils.commands import runCmd
 from oeqa.utils.git import GitRepo, GitError
+from oeqa.utils.metadata import metadata_from_bb, write_metadata_file
 
 
 # Set-up logging
@@ -115,6 +119,100 @@ def archive_build_conf(out_dir):
     shutil.copytree(src_dir, tgt_dir)
 
 
+def git_commit_results(repo_dir, results_dir, branch, tag, metadata):
+    """Commit results into a Git repository"""
+    repo = GitRepo(repo_dir, is_topdir=True)
+    distro_branch = metadata['layers']['meta']['branch']
+    distro_commit = metadata['layers']['meta']['commit']
+    distro_commit_count = metadata['layers']['meta']['commit_count']
+
+    # Replace keywords
+    branch = branch.format(git_branch=distro_branch,
+                           tester_host=metadata['hostname'])
+
+    log.info("Committing test results into %s %s", repo_dir, branch)
+    tmp_index = os.path.join(repo_dir, '.git', 'index.oe-build-perf')
+    try:
+        # Create new commit object from the new results
+        env_update = {'GIT_INDEX_FILE': tmp_index,
+                      'GIT_WORK_TREE': results_dir}
+        repo.run_cmd('add .', env_update)
+        tree = repo.run_cmd('write-tree', env_update)
+        parent = repo.rev_parse(branch)
+        msg = "Results of {}:{}\n".format(distro_branch, distro_commit)
+        git_cmd = ['commit-tree', tree, '-m', msg]
+        if parent:
+            git_cmd += ['-p', parent]
+        commit = repo.run_cmd(git_cmd, env_update)
+
+        # Update branch head
+        git_cmd = ['update-ref', 'refs/heads/' + branch, commit]
+        if parent:
+            git_cmd.append(parent)
+        repo.run_cmd(git_cmd)
+
+        # Update current HEAD, if we're on branch 'branch'
+        if repo.get_current_branch() == branch:
+            log.info("Updating %s HEAD to latest commit", repo_dir)
+            repo.run_cmd('reset --hard')
+
+        # Create (annotated) tag
+        if tag:
+            # Find tags matching the pattern
+            tag_keywords = dict(git_branch=distro_branch,
+                                git_commit=distro_commit,
+                                git_commit_count=distro_commit_count,
+                                tester_host=metadata['hostname'],
+                                tag_num='[0-9]{1,5}')
+            tag_re = re.compile(tag.format(**tag_keywords) + '$')
+            tag_keywords['tag_num'] = 0
+            for existing_tag in repo.run_cmd('tag').splitlines():
+                if tag_re.match(existing_tag):
+                    tag_keywords['tag_num'] += 1
+
+            tag = tag.format(**tag_keywords)
+            msg = "Test run #{} of {}:{}\n".format(tag_keywords['tag_num'],
+                                                   distro_branch,
+                                                   distro_commit)
+            repo.run_cmd(['tag', '-a', '-m', msg, tag, commit])
+
+    finally:
+        if os.path.exists(tmp_index):
+            os.unlink(tmp_index)
+
+
+def update_globalres_file(result_obj, filename, metadata):
+    """Write results to globalres csv file"""
+    # Map test names to time and size columns in globalres
+    # The tuples represent index and length of times and sizes
+    # respectively
+    gr_map = {'test1': ((0, 1), (8, 1)),
+              'test12': ((1, 1), (None, None)),
+              'test13': ((2, 1), (9, 1)),
+              'test2': ((3, 1), (None, None)),
+              'test3': ((4, 3), (None, None)),
+              'test4': ((7, 1), (10, 2))}
+
+    values = ['0'] * 12
+    for status, test, _ in result_obj.all_results():
+        if status in ['ERROR', 'SKIPPED']:
+            continue
+        (t_ind, t_len), (s_ind, s_len) = gr_map[test.name]
+        if t_ind is not None:
+            values[t_ind:t_ind + t_len] = test.times
+        if s_ind is not None:
+            values[s_ind:s_ind + s_len] = test.sizes
+
+    log.debug("Writing globalres log to %s", filename)
+    rev_info = metadata['layers']['meta']
+    with open(filename, 'a') as fobj:
+        fobj.write('{},{}:{},{},'.format(metadata['hostname'],
+                                         rev_info['branch'],
+                                         rev_info['commit'],
+                                         rev_info['commit']))
+        fobj.write(','.join(values) + '\n')
+
+
 def parse_args(argv):
     """Parse command line arguments"""
     parser = argparse.ArgumentParser(
@@ -183,7 +281,19 @@ def main(argv=None):
     else:
         suite = loader.loadTestsFromModule(oeqa.buildperf)
 
+    # Save test metadata
+    metadata = metadata_from_bb()
+    log.info("Testing Git revision branch:commit %s:%s (%s)",
+             metadata['layers']['meta']['branch'],
+             metadata['layers']['meta']['commit'],
+             metadata['layers']['meta']['commit_count'])
+    if args.xml:
+        write_metadata_file(os.path.join(out_dir, 'metadata.xml'), metadata)
+    else:
+        with open(os.path.join(out_dir, 'metadata.json'), 'w') as fobj:
+            json.dump(metadata, fobj, indent=2)
     archive_build_conf(out_dir)
+
     runner = BuildPerfTestRunner(out_dir, verbosity=2)
 
     # Suppress logger output to stderr so that the output from unittest
@@ -201,11 +311,11 @@ def main(argv=None):
     else:
         result.write_results_json()
     if args.globalres_file:
-        result.update_globalres_file(args.globalres_file)
+        update_globalres_file(result, args.globalres_file, metadata)
     if args.commit_results:
-        result.git_commit_results(args.commit_results,
-                                  args.commit_results_branch,
-                                  args.commit_results_tag)
+        git_commit_results(args.commit_results, out_dir,
+                           args.commit_results_branch, args.commit_results_tag,
+                           metadata)
     if result.wasSuccessful():
         return 0