3 # Find commit date/time for every commit, list files in the commit
4 # and set the file's modification time to the date/time of the latest commit.
6 # Adapted from https://git.wiki.kernel.org/index.php/ExampleScripts#Setting_the_timestamps_of_the_files_to_the_commit_timestamp_of_the_commit_which_last_touched_them # noqa
11 git_root = subprocess.check_output(['git', 'rev-parse', '--show-toplevel'],
12 universal_newlines=True).rstrip('\n')
15 separator = '----- GIT LOG SEPARATOR -----'
17 git_log = subprocess.Popen(['git', 'log', '-m', '--first-parent',
18 '--name-only', '--no-color',
19 '--format=%s%%n%%ct' % separator],
20 stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
21 universal_newlines=True)
23 # stages: 1 - start of commit, 2 - timestamp, 3 - empty line, 4 - files
25 for line in git_log.stdout:
27 if (stage in (1, 4)) and (line == separator): # Start of a commit
33 if line == separator: # Null-merge (git merge -s ours), no files
37 assert line == '', line
40 if filename not in filenames:
41 filenames.add(filename)
42 if os.path.exists(filename):
43 os.utime(filename, (time, time))
45 raise ValueError("stage: %d, line: %s" % (stage, line))
48 git_log.stdout.close()