git-repo/release/update-manpages
Roger Shimizu 0a1f533e28 Add script 'release/update-manpages' to generate manpages
Debian package started to ship manpages for repo since 2.8 [1]
And it's about for one year. So I think it should be upstreamed.

The script depends on help2man, which is available in both debian [2]
and ubuntu [3].

[1] https://tracker.debian.org/news/1150858/accepted-repo-28-1-source-into-unstable
[2] https://tracker.debian.org/pkg/help2man
[3] https://launchpad.net/ubuntu/+source/help2man

Change-Id: Ide2b356d0944ebde34cc96c6d5a782655bd72288
Signed-off-by: Roger Shimizu <rosh@debian.org>
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/309782
Reviewed-by: Mike Frysinger <vapier@google.com>
2021-07-16 20:11:41 +00:00

86 lines
2.8 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (C) 2021 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Helper tool for generating manual page for all repo commands.
This is intended to be run before every official Repo release.
"""
from pathlib import Path
from functools import partial
import argparse
import multiprocessing
import os
import re
import shutil
import subprocess
import sys
import tempfile
TOPDIR = Path(__file__).resolve().parent.parent
MANDIR = TOPDIR.joinpath('man')
# Load repo local modules.
sys.path.insert(0, str(TOPDIR))
from git_command import RepoSourceVersion
import subcmds
def worker(cmd, **kwargs):
subprocess.run(cmd, **kwargs)
def main(argv):
parser = argparse.ArgumentParser(description=__doc__)
opts = parser.parse_args(argv)
if not shutil.which('help2man'):
sys.exit('Please install help2man to continue.')
# "repo branch" is an alias for "repo branches".
del subcmds.all_commands['branch']
(MANDIR / 'repo-branch.1').write_text('.so man1/repo-branches.1')
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'),
'-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'),
'-h', 'help --all'])
with tempfile.TemporaryDirectory() as tempdir:
repo_dir = Path(tempdir) / '.repo'
repo_dir.mkdir()
(repo_dir / 'repo').symlink_to(TOPDIR)
# Run all cmd in parallel, and wait for them to finish.
with multiprocessing.Pool() as pool:
pool.map(partial(worker, cwd=tempdir, check=True), cmdlist)
regex = (
(r'(It was generated by help2man) [0-9.]+', '\g<1>.'),
(r'^\.IP\n(.*:)\n', '.SS \g<1>\n'),
(r'^\.PP\nDescription', '.SH DETAILS'),
)
for path in MANDIR.glob('*.1'):
data = path.read_text()
for pattern, replacement in regex:
data = re.sub(pattern, replacement, data, flags=re.M)
path.write_text(data)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))