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Diffstat (limited to 'cros_utils/manifest_versions.py')
-rw-r--r-- | cros_utils/manifest_versions.py | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/cros_utils/manifest_versions.py b/cros_utils/manifest_versions.py new file mode 100644 index 00000000..52fd700f --- /dev/null +++ b/cros_utils/manifest_versions.py @@ -0,0 +1,97 @@ +# Copyright (c) 2013 The Chromium OS Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. +"""Tools for searching/manipulating the manifests repository.""" + +from __future__ import print_function + +__author__ = 'llozano@google.com (Luis Lozano)' + +import os +import re +import shutil +import tempfile +import time + +import command_executer +import logger + + +def IsCrosVersion(version): + match = re.search(r'(\d+\.\d+\.\d+\.\d+)', version) + return match is not None + + +def IsRFormatCrosVersion(version): + match = re.search(r'(R\d+-\d+\.\d+\.\d+)', version) + return match is not None + + +def RFormatCrosVersion(version): + assert IsCrosVersion(version) + tmp_major, tmp_minor = version.split('.', 1) + rformat = 'R' + tmp_major + '-' + tmp_minor + assert IsRFormatCrosVersion(rformat) + return rformat + + +class ManifestVersions(object): + """This class handles interactions with the manifests repo.""" + + def __init__(self, internal=True): + self.internal = internal + self.clone_location = tempfile.mkdtemp() + self.ce = command_executer.GetCommandExecuter() + if internal: + versions_git = ('https://chrome-internal.googlesource.com/' + 'chromeos/manifest-versions.git') + else: + versions_git = ( + 'https://chromium.googlesource.com/chromiumos/manifest-versions.git') + commands = ['cd {0}'.format(self.clone_location), + 'git clone {0}'.format(versions_git)] + ret = self.ce.RunCommands(commands) + if ret: + logger.GetLogger().LogFatal('Failed to clone manifest-versions.') + + def __del__(self): + if self.clone_location: + shutil.rmtree(self.clone_location) + + def TimeToVersion(self, my_time): + """Convert timestamp to version number.""" + cur_time = time.mktime(time.gmtime()) + des_time = float(my_time) + if cur_time - des_time > 7000000: + logger.GetLogger().LogFatal('The time you specify is too early.') + commands = ['cd {0}'.format(self.clone_location), 'cd manifest-versions', + 'git checkout -f $(git rev-list' + + ' --max-count=1 --before={0} origin/master)'.format(my_time)] + ret = self.ce.RunCommands(commands) + if ret: + logger.GetLogger().LogFatal('Failed to checkout manifest at ' + 'specified time') + path = os.path.realpath('{0}/manifest-versions/LKGM/lkgm.xml'.format( + self.clone_location)) + pp = path.split('/') + small = os.path.basename(path).split('.xml')[0] + version = pp[-2] + '.' + small + commands = ['cd {0}'.format(self.clone_location), 'cd manifest-versions', + 'git checkout master'] + self.ce.RunCommands(commands) + return version + + def GetManifest(self, version, to_file): + """Get the manifest file from a given chromeos-internal version.""" + assert not IsRFormatCrosVersion(version) + version = version.split('.', 1)[1] + os.chdir(self.clone_location) + files = [os.path.join(r, f) + for r, _, fs in os.walk('.') for f in fs if version in f] + if files: + command = 'cp {0} {1}'.format(files[0], to_file) + ret = self.ce.RunCommand(command) + if ret: + raise RuntimeError('Cannot copy manifest to {0}'.format(to_file)) + else: + raise RuntimeError('Version {0} is not available.'.format(version)) |