Updating the SwarmingIsolatedScriptTest to upload chartjson results to the

scripts/slave/slave_utils.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Functions specific to build slaves, shared by several buildbot scripts.
 """
 
 import datetime
 import glob
 import os
 import re
 import shutil
 import sys
 import tempfile
 import time
 
 from common import chromium_utils
 from slave.bootstrap import ImportMasterConfigs # pylint: disable=W0611
 from common.chromium_utils import GetActiveMaster # pylint: disable=W0611
 
 # These codes used to distinguish true errors from script warnings.
 ERROR_EXIT_CODE = 1
 WARNING_EXIT_CODE = 88
 
 
+# Regex matching git comment lines containing svn revision info.
+GIT_SVN_ID_RE = re.compile(r'^git-svn-id: .*@([0-9]+) .*$')
+# Regex for the master branch commit position.
+GIT_CR_POS_RE = re.compile(r'^Cr-Commit-Position: refs/heads/master@{#(\d+)}$')
+
+
 # Local errors.
 class PageHeapError(Exception):
   pass
 
 
 # Cache the path to gflags.exe.
 _gflags_exe = None
 
 
 def SubversionExe():
@@ skipping 693 matching lines @@
     '--filesync',
     '--recurse-paths',
     '--symlinks',
     local_archive,
   ]
   zip_cmd.extend(targets)
 
   chromium_utils.RunCommand(zip_cmd)
   GSUtilCopy(local_archive, 'gs://%s/%s' % (bucket, archive))
   return 'https://storage.cloud.google.com/%s/%s' % (bucket, archive)
+
+
+def GetPerfDashboardRevisions(
+    build_properties, main_revision, blink_revision, point_id=None):
+  """Fills in the same revisions fields that process_log_utils does."""
+
+  versions = {}
+  versions['rev'] = main_revision
+  versions['webkit_rev'] = blink_revision
+  versions['webrtc_rev'] = build_properties.get('got_webrtc_revision')
+  versions['v8_rev'] = build_properties.get('got_v8_revision')
+  versions['ver'] = build_properties.get('version')
+  versions['git_revision'] = build_properties.get('git_revision')
+  versions['point_id'] = point_id
+  # There are a lot of "bad" revisions to check for, so clean them all up here.
+  for key in versions.keys():
+    if not versions[key] or versions[key] == 'undefined':
+      del versions[key]
+  return versions
+
+
+def GetMainRevision(build_properties, build_dir, revision=None):
+  """Return revision to use as the numerical x-value in the perf dashboard.
+
+  This will be used as the value of "rev" in the data passed to
+  results_dashboard.SendResults.
+
+  In order or priority, this function could return:
+    1. The value of the --revision flag (IF it can be parsed as an int).
+    2. The value of "got_revision_cp" in build properties.
+    3. An SVN number, git commit position, or git commit hash.
+  """
+  if revision and revision.isdigit():
+    return revision
+  commit_pos_num = _GetCommitPos(build_properties)
+  if commit_pos_num is not None:
+    return commit_pos_num
+  # TODO(sullivan,qyearsley): Don't fall back to _GetRevision if it returns
+  # a git commit, since this should be a numerical revision. Instead, abort
+  # and fail.
+  return GetRevision(os.path.dirname(os.path.abspath(build_dir)))
+
+
+def GetBlinkRevision(build_dir, webkit_revision=None):
+  """
+    TODO(eyaich): Blink's now folded into Chromium and doesn't have a separate
+    revision. Use main_revision and delete GetBlinkRevision and uses.
+  """
+  if webkit_revision:
+    webkit_revision = webkit_revision
+  else:
+    try:
+      webkit_dir = chromium_utils.FindUpward(
+          os.path.abspath(build_dir), 'third_party', 'WebKit', 'Source')
+      webkit_revision = slave_utils.GetRevision(webkit_dir)
+    except Exception:
+      webkit_revision = None
+  return webkit_revision
+
+
+def GetRevision(in_directory):
+  """Returns the SVN revision, git commit position, or git hash.
+
+  Args:
+    in_directory: A directory in the repository to be checked.
+
+  Returns:
+    An SVN revision as a string if the given directory is in a SVN repository,
+    or a git commit position number, or if that's not available, a git hash.
+    If all of that fails, an empty string is returned.
+  """
+  import xml.dom.minidom
+  if not os.path.exists(os.path.join(in_directory, '.svn')):
+    if _IsGitDirectory(in_directory):
+      svn_rev = _GetGitCommitPosition(in_directory)
+      if svn_rev:
+        return svn_rev
+      return _GetGitRevision(in_directory)
+    else:
+      return ''
+
+def _GetCommitPos(build_properties):
+  """Extracts the commit position from the build properties, if its there."""
+  if 'got_revision_cp' not in build_properties:
+    return None
+  commit_pos = build_properties['got_revision_cp']
+  return int(re.search(r'{#(\d+)}', commit_pos).group(1))
+
+
+def _GetGitCommitPositionFromLog(log):
+  """Returns either the commit position or svn rev from a git log."""
+  # Parse from the bottom up, in case the commit message embeds the message
+  # from a different commit (e.g., for a revert).
+  for r in [GIT_CR_POS_RE, GIT_SVN_ID_RE]:
+    for line in reversed(log.splitlines()):
+      m = r.match(line.strip())
+      if m:
+        return m.group(1)
+  return None
+
+
+def _GetGitCommitPosition(dir_path):
+  """Extracts the commit position or svn revision number of the HEAD commit."""
+  git_exe = 'git.bat' if sys.platform.startswith('win') else 'git'
+  p = subprocess.Popen(
+      [git_exe, 'log', '-n', '1', '--pretty=format:%B', 'HEAD'],
+      cwd=dir_path, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+  (log, _) = p.communicate()
+  if p.returncode != 0:
+    return None
+  return _GetGitCommitPositionFromLog(log)
+
+
+def _GetGitRevision(in_directory):
+  """Returns the git hash tag for the given directory.
+
+  Args:
+    in_directory: The directory where git is to be run.
+
+  Returns:
+    The git SHA1 hash string.
+  """
+  git_exe = 'git.bat' if sys.platform.startswith('win') else 'git'
+  p = subprocess.Popen(
+      [git_exe, 'rev-parse', 'HEAD'],
+      cwd=in_directory, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+  (stdout, _) = p.communicate()
+  return stdout.strip()