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update-manpages: avoid regen just for datestamp update

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To avoid noise due to the passage of time, don't regenerate man pages
if the only thing different is the datestamp in the header.

Change-Id: Ic8d7b08d12e59c66994c0cc2d4ec2d2ed3eb6e6d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/318575
Reviewed-by: Jack Neus <jackneus@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
This commit is contained in:
Mike Frysinger 2021-09-22 14:15:35 -04:00
parent 0ec2029833
commit 0468feac39
1 changed files with 17 additions and 5 deletions
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20
release/update-manpages
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@ -59,11 +59,11 @@ def main(argv):
version = RepoSourceVersion()
cmdlist = [['help2man', '-N', '-n', f'repo {cmd} - manual page for repo {cmd}',
'-S', f'repo {cmd}', '-m', 'Repo Manual', f'--version-string={version}',
'-o', MANDIR.joinpath(f'repo-{cmd}.1'), TOPDIR.joinpath('repo'),
'-o', MANDIR.joinpath(f'repo-{cmd}.1.tmp'), TOPDIR.joinpath('repo'),
'-h', f'help {cmd}'] for cmd in subcmds.all_commands]
cmdlist.append(['help2man', '-N', '-n', 'repository management tool built on top of git',
'-S', 'repo', '-m', 'Repo Manual', f'--version-string={version}',
'-o', MANDIR.joinpath('repo.1'), TOPDIR.joinpath('repo'),
'-o', MANDIR.joinpath('repo.1.tmp'), TOPDIR.joinpath('repo'),
'-h', '--help-all'])
with tempfile.TemporaryDirectory() as tempdir:
@ -80,11 +80,23 @@ def main(argv):
(r'^\.IP\n(.*:)\n', '.SS \g<1>\n'),
(r'^\.PP\nDescription', '.SH DETAILS'),
)
for path in MANDIR.glob('*.1'):
data = path.read_text()
for tmp_path in MANDIR.glob('*.1.tmp'):
path = tmp_path.parent / tmp_path.stem
old_data = path.read_text() if path.exists() else ''
data = tmp_path.read_text()
tmp_path.unlink()
for pattern, replacement in regex:
data = re.sub(pattern, replacement, data, flags=re.M)
# If the only thing that changed was the date, don't refresh. This avoids
# a lot of noise when only one file actually updates.
old_data = re.sub(r'^(\.TH REPO "1" ")([^"]+)', r'\1', old_data, flags=re.M)
new_data = re.sub(r'^(\.TH REPO "1" ")([^"]+)', r'\1', data, flags=re.M)
if old_data != new_data:
path.write_text(data)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))