blob: 08a59592c7f1c6f9afd6d4052d498256f7839e39 [file] [log] [blame]
# 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.
"""Small utility library of python functions used during SDK building.
import os
import re
import sys
# pylint: disable=E0602
# Reuse last change utility code.
SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
SRC_DIR = os.path.dirname(os.path.dirname(os.path.dirname(SCRIPT_DIR)))
sys.path.append(os.path.join(SRC_DIR, 'build/util'))
import lastchange
# Location of chrome's version file.
VERSION_PATH = os.path.join(SRC_DIR, 'chrome', 'VERSION')
def ChromeVersion():
'''Extract chrome version from src/chrome/VERSION + svn.
Chrome version string or trunk + svn rev.
info = FetchCommitPosition()
_, ref, revision = ParseCommitPosition(info.revision)
if ref == 'refs/heads/master':
return 'trunk.%s' % revision
return ChromeVersionNoTrunk()
def ChromeVersionNoTrunk():
'''Extract the chrome version from src/chrome/VERSION.
Ignore whether this is a trunk build.
Chrome version string.
return '%s.%s.%s.%s' % (MAJOR, MINOR, BUILD, PATCH)
def ChromeMajorVersion():
'''Extract chrome major version from src/chrome/VERSION.
Chrome major version.
exec(open(VERSION_PATH, 'r').read())
return str(MAJOR)
def ChromeRevision():
'''Extract chrome revision from svn.
Now that the Chrome source-of-truth is git, this will return the
Cr-Commit-Position instead. Fortunately, this value is equal to the SVN
revision if one exists.
The Chrome revision as a string. e.g. "12345"
version = FetchCommitPosition()
return ParseCommitPosition(version.revision)[2]
def ChromeCommitPosition():
'''Return the full git sha and commit position.
A value like:
return FetchCommitPosition().revision
def NaClRevision():
'''Extract NaCl revision from svn.
The NaCl revision as a string. e.g. "12345"
nacl_dir = os.path.join(SRC_DIR, 'native_client')
return lastchange.FetchVersionInfo(nacl_dir).revision
def FetchCommitPosition(directory=None):
'''Return the "commit-position" of the Chromium git repo. This should be
equivalent to the SVN revision if one exists.
for i in xrange(SEARCH_LIMIT):
cmd = ['show', '-s', '--format=%H%n%B', 'HEAD~%d' % i]
proc = lastchange.RunGitCommand(directory, cmd)
if not proc:
output = proc.communicate()[0]
if not (proc.returncode == 0 and output):
lines = output.splitlines()
# First line is the hash.
hsh = lines[0]
if not re.match(r'[0-9a-fA-F]+', hsh):
for line in reversed(lines):
if line.startswith('Cr-Commit-Position:'):
pos = line.rsplit()[-1].strip()
return lastchange.VersionInfo(hsh, '%s-%s' % (hsh, pos))
raise Exception('Unable to fetch a Git Commit Position.')
def ParseCommitPosition(commit_position):
'''Parse a Chrome commit position into its components.
Given a commit position like:
("0178d4831bd36b5fb9ff477f03dc43b11626a6dc", "refs/heads/master", "292238")
m = re.match(r'([0-9a-fA-F]+)(?:-([^@]+)@{#(\d+)})?', commit_position)
if m:
return m.groups()
return None