| #!/usr/bin/env python |
| # |
| # Copyright (c) 2013 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. |
| |
| """Updates the Chrome reference builds. |
| |
| Before running this script, you should first verify that you are authenticated |
| for SVN. You can do this by running: |
| $ svn ls svn://svn.chromium.org/chrome/trunk/deps/reference_builds |
| You may need to get your SVN password from https://chromium-access.appspot.com/. |
| |
| Usage: |
| $ cd /tmp |
| $ /path/to/update_reference_build.py VERSION # e.g. 37.0.2062.94 |
| $ cd reference_builds/reference_builds |
| $ gcl change |
| $ gcl upload <change> |
| $ gcl commit <change> |
| """ |
| |
| import logging |
| import optparse |
| import os |
| import shutil |
| import subprocess |
| import sys |
| import time |
| import urllib |
| import urllib2 |
| import zipfile |
| |
| |
| # Google storage location (no public web URL's), example: |
| # gs://chrome-unsigned/desktop-*/30.0.1595.0/precise32/chrome-precise32.zip |
| CHROME_GS_URL_FMT = ('gs://chrome-unsigned/desktop-*/%s/%s/%s') |
| |
| |
| class BuildUpdater(object): |
| _CHROME_PLATFORM_FILES_MAP = { |
| 'Win': [ |
| 'chrome-win.zip', |
| ], |
| 'Mac': [ |
| 'chrome-mac.zip', |
| ], |
| 'Linux': [ |
| 'chrome-precise32.zip', |
| ], |
| 'Linux_x64': [ |
| 'chrome-precise64.zip', |
| ], |
| } |
| |
| # Map of platform names to gs:// Chrome build names. |
| _BUILD_PLATFORM_MAP = { |
| 'Linux': 'precise32', |
| 'Linux_x64': 'precise64', |
| 'Win': 'win', |
| 'Mac': 'mac', |
| } |
| |
| _PLATFORM_DEST_MAP = { |
| 'Linux': 'chrome_linux', |
| 'Linux_x64': 'chrome_linux64', |
| 'Win': 'chrome_win', |
| 'Mac': 'chrome_mac', |
| } |
| |
| def __init__(self, version, options): |
| self._version = version |
| self._platforms = options.platforms.split(',') |
| |
| @staticmethod |
| def _GetCmdStatusAndOutput(args, cwd=None, shell=False): |
| """Executes a subprocess and returns its exit code and output. |
| |
| Args: |
| args: A string or a sequence of program arguments. |
| cwd: If not None, the subprocess's current directory will be changed to |
| |cwd| before it's executed. |
| shell: Whether to execute args as a shell command. |
| |
| Returns: |
| The tuple (exit code, output). |
| """ |
| logging.info(str(args) + ' ' + (cwd or '')) |
| p = subprocess.Popen(args=args, cwd=cwd, stdout=subprocess.PIPE, |
| stderr=subprocess.PIPE, shell=shell) |
| stdout, stderr = p.communicate() |
| exit_code = p.returncode |
| if stderr: |
| logging.critical(stderr) |
| logging.info(stdout) |
| return (exit_code, stdout) |
| |
| def _GetBuildUrl(self, platform, version, filename): |
| """Returns the URL for fetching one file. |
| |
| Args: |
| platform: Platform name, must be a key in |self._BUILD_PLATFORM_MAP|. |
| version: A Chrome version number, e.g. 30.0.1600.1. |
| filename: Name of the file to fetch. |
| |
| Returns: |
| The URL for fetching a file. This may be a GS or HTTP URL. |
| """ |
| return CHROME_GS_URL_FMT % ( |
| version, self._BUILD_PLATFORM_MAP[platform], filename) |
| |
| def _FindBuildVersion(self, platform, version, filename): |
| """Searches for a version where a filename can be found. |
| |
| Args: |
| platform: Platform name. |
| version: A Chrome version number, e.g. 30.0.1600.1. |
| filename: Filename to look for. |
| |
| Returns: |
| A version where the file could be found, or None. |
| """ |
| # TODO(shadi): Iterate over official versions to find a valid one. |
| return (version |
| if self._DoesBuildExist(platform, version, filename) else None) |
| |
| def _DoesBuildExist(self, platform, version, filename): |
| """Checks whether a file can be found for the given Chrome version. |
| |
| Args: |
| platform: Platform name. |
| version: Chrome version number, e.g. 30.0.1600.1. |
| filename: Filename to look for. |
| |
| Returns: |
| True if the file could be found, False otherwise. |
| """ |
| url = self._GetBuildUrl(platform, version, filename) |
| return self._DoesGSFileExist(url) |
| |
| def _DoesGSFileExist(self, gs_file_name): |
| """Returns True if the GS file can be found, False otherwise.""" |
| exit_code = BuildUpdater._GetCmdStatusAndOutput( |
| ['gsutil', 'ls', gs_file_name])[0] |
| return not exit_code |
| |
| def _GetPlatformFiles(self, platform): |
| """Returns a list of filenames to fetch for the given platform.""" |
| return BuildUpdater._CHROME_PLATFORM_FILES_MAP[platform] |
| |
| def _DownloadBuilds(self): |
| for platform in self._platforms: |
| for filename in self._GetPlatformFiles(platform): |
| output = os.path.join('dl', platform, |
| '%s_%s_%s' % (platform, |
| self._version, |
| filename)) |
| if os.path.exists(output): |
| logging.info('%s alread exists, skipping download', output) |
| continue |
| version = self._FindBuildVersion(platform, self._version, filename) |
| if not version: |
| logging.critical('Failed to find %s build for r%s\n', platform, |
| self._version) |
| sys.exit(1) |
| dirname = os.path.dirname(output) |
| if dirname and not os.path.exists(dirname): |
| os.makedirs(dirname) |
| url = self._GetBuildUrl(platform, version, filename) |
| self._DownloadFile(url, output) |
| |
| def _DownloadFile(self, url, output): |
| logging.info('Downloading %s, saving to %s', url, output) |
| BuildUpdater._GetCmdStatusAndOutput(['gsutil', 'cp', url, output]) |
| |
| def _FetchSvnRepos(self): |
| if not os.path.exists('reference_builds'): |
| os.makedirs('reference_builds') |
| BuildUpdater._GetCmdStatusAndOutput( |
| ['gclient', 'config', |
| 'svn://svn.chromium.org/chrome/trunk/deps/reference_builds'], |
| 'reference_builds') |
| BuildUpdater._GetCmdStatusAndOutput( |
| ['gclient', 'sync'], 'reference_builds') |
| |
| def _UnzipFile(self, dl_file, dest_dir): |
| """Unzips a file if it is a zip file. |
| |
| Args: |
| dl_file: The downloaded file to unzip. |
| dest_dir: The destination directory to unzip to. |
| |
| Returns: |
| True if the file was unzipped. False if it wasn't a zip file. |
| """ |
| if not zipfile.is_zipfile(dl_file): |
| return False |
| logging.info('Opening %s', dl_file) |
| with zipfile.ZipFile(dl_file, 'r') as z: |
| for content in z.namelist(): |
| dest = os.path.join(dest_dir, content[content.find('/')+1:]) |
| # Create dest parent dir if it does not exist. |
| if not os.path.isdir(os.path.dirname(dest)): |
| os.makedirs(os.path.dirname(dest)) |
| # If dest is just a dir listing, do nothing. |
| if not os.path.basename(dest): |
| continue |
| if not os.path.isdir(os.path.dirname(dest)): |
| os.makedirs(os.path.dirname(dest)) |
| with z.open(content) as unzipped_content: |
| logging.info('Extracting %s to %s (%s)', content, dest, dl_file) |
| with file(dest, 'wb') as dest_file: |
| dest_file.write(unzipped_content.read()) |
| permissions = z.getinfo(content).external_attr >> 16 |
| if permissions: |
| os.chmod(dest, permissions) |
| return True |
| |
| def _ClearDir(self, dir): |
| """Clears all files in |dir| except for hidden files and folders.""" |
| for root, dirs, files in os.walk(dir): |
| # Skip hidden files and folders (like .svn and .git). |
| files = [f for f in files if f[0] != '.'] |
| dirs[:] = [d for d in dirs if d[0] != '.'] |
| |
| for f in files: |
| os.remove(os.path.join(root, f)) |
| |
| def _ExtractBuilds(self): |
| for platform in self._platforms: |
| if os.path.exists('tmp_unzip'): |
| os.path.unlink('tmp_unzip') |
| dest_dir = os.path.join('reference_builds', 'reference_builds', |
| BuildUpdater._PLATFORM_DEST_MAP[platform]) |
| self._ClearDir(dest_dir) |
| for root, _, dl_files in os.walk(os.path.join('dl', platform)): |
| for dl_file in dl_files: |
| dl_file = os.path.join(root, dl_file) |
| if not self._UnzipFile(dl_file, dest_dir): |
| logging.info('Copying %s to %s', dl_file, dest_dir) |
| shutil.copy(dl_file, dest_dir) |
| |
| def _SvnAddAndRemove(self): |
| svn_dir = os.path.join('reference_builds', 'reference_builds') |
| # List all changes without ignoring any files. |
| stat = BuildUpdater._GetCmdStatusAndOutput(['svn', 'stat', '--no-ignore'], |
| svn_dir)[1] |
| for line in stat.splitlines(): |
| action, filename = line.split(None, 1) |
| # Add new and ignored files. |
| if action == '?' or action == 'I': |
| BuildUpdater._GetCmdStatusAndOutput( |
| ['svn', 'add', filename], svn_dir) |
| elif action == '!': |
| BuildUpdater._GetCmdStatusAndOutput( |
| ['svn', 'delete', filename], svn_dir) |
| filepath = os.path.join(svn_dir, filename) |
| if not os.path.isdir(filepath) and os.access(filepath, os.X_OK): |
| BuildUpdater._GetCmdStatusAndOutput( |
| ['svn', 'propset', 'svn:executable', 'true', filename], svn_dir) |
| |
| def DownloadAndUpdateBuilds(self): |
| self._DownloadBuilds() |
| self._FetchSvnRepos() |
| self._ExtractBuilds() |
| self._SvnAddAndRemove() |
| |
| |
| def ParseOptions(argv): |
| parser = optparse.OptionParser() |
| parser.set_usage('Usage: %prog VERSION [-p PLATFORMS]') |
| parser.add_option('-p', dest='platforms', |
| default='Win,Mac,Linux,Linux_x64', |
| help='Comma separated list of platforms to download ' |
| '(as defined by the chromium builders).') |
| |
| options, args = parser.parse_args(argv) |
| if len(args) != 2: |
| parser.print_help() |
| sys.exit(1) |
| version = args[1] |
| |
| return version, options |
| |
| |
| def main(argv): |
| logging.getLogger().setLevel(logging.DEBUG) |
| version, options = ParseOptions(argv) |
| b = BuildUpdater(version, options) |
| b.DownloadAndUpdateBuilds() |
| logging.info('Successfully updated reference builds. Move to ' |
| 'reference_builds/reference_builds and make a change with gcl.') |
| |
| if __name__ == '__main__': |
| sys.exit(main(sys.argv)) |
