Add infra_libs as a bootstrap dependency.

infra_libs/event_mon/checkouts.py

-# Copyright 2015 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 in this file relies on depot_tools been checked-out as a sibling
-# of infra.git.
-
-import logging
-import os
-import re
-import subprocess
-
-
-BASE_DIR = os.path.dirname(
-  os.path.dirname(
-    os.path.dirname(
-      os.path.dirname(os.path.realpath(__file__)))))
-
-
-def parse_revinfo(revinfo):
-  """Parse the output of "gclient revinfo -a"
-
-  Args:
-    revinfo (str): string containing gclient stdout.
-
-  Returns:
-    revinfo_d (dict): <directory>: (URL, revision)
-  """
-  revision_expr = re.compile('(.*)@([^@]*)')
-
-  revinfo_d = {}
-  for line in revinfo.splitlines():
-    if ':' not in line:
-      continue
-
-    # TODO: this fails when the file name contains a colon.
-    path, line = line.split(':', 1)
-    if '@' in line:
-      url, revision = revision_expr.match(line).groups()
-      revision = revision.strip()
-    else:
-      # Split at the last @
-      url, revision = line.strip(), None
-
-    path = path.strip()
-    url = url.strip()
-    revinfo_d[path] = {'source_url': url, 'revision': revision}
-  return revinfo_d
-
-
-def get_revinfo(cwd=None):  # pragma: no cover
-  """Call gclient to get the list of all revisions actually checked out on disk.
-
-  gclient is expected to be under depot_tools/ sibling to infra/.
-  If gclient can't be found or fail to run returns {}.
-
-  Args:
-    cwd (str): working directory where to run gclient. If None, use the
-      current working directory.
-  Returns:
-    revinfo (dict): keys are local paths, values are dicts with keys:
-      'source_url' or 'revision'. The latter can be a git SHA1 or an svn
-      revision.
-  """
-
-  cmd = [os.path.join(BASE_DIR, 'depot_tools', 'gclient'), 'revinfo', '-a']
-  logging.debug('Running: %s', ' '.join(cmd))
-  revinfo = ''
-  try:
-    revinfo = subprocess.check_output(cmd, cwd=cwd)
-  except (subprocess.CalledProcessError, OSError):
-    logging.exception('Command failed to run: %s', ' '.join(cmd))
-  return parse_revinfo(revinfo)