annotate_tag_from_release_rst.py

#!/usr/bin/env python

import os
import re
import subprocess
import sys


RELEASE_NOTE_PATTERN = re.compile("release-([0-9]+\.[0-9]+\.[0-9]+)\.rst")


def extract_metadata_from_logline(line):
    author_name, author_email, author_date, committer_name, committer_email, committer_date = line.split(";")
    if author_name != committer_name:
        raise "  Author: %s / Committer: %s" % (author_name, committer_name)
    if author_email != committer_email:
        raise "  Author: %s / Committer: %s" % (author_email, committer_email)
    if author_date != committer_date:
        print >> sys.stderr, "  Author Date: %s / Committer Date: %s" % (author_date, committer_date)
    return {
        "GIT_AUTHOR_NAME": author_name,
        "GIT_AUTHOR_EMAIL": author_email,
        "GIT_AUTHOR_DATE": author_date,
        "GIT_COMMITTER_NAME": committer_name,
        "GIT_COMMITTER_EMAIL": committer_email,
        "GIT_COMMITTER_DATE": committer_date,
    }


def process_file(filename, version):
    print >> sys.stderr, "%s, %s:" % (version, filename)

    commit = subprocess.check_output(['git', 'show-ref', "v%s" % version]).split()[0]

    log = subprocess.check_output(['git', 'log', '--pretty=format:%aN;%ae;%aI;%cN;%ce;%cI', filename])
    loglines = log.splitlines()

    if len(loglines) > 1:
        print >> sys.stderr, "  Multiple commits on %s" % filename

    environment_variables = dict(os.environ)
    environment_variables.update(extract_metadata_from_logline(loglines[0]))
    print subprocess.check_output(['git', 'tag', '-a', "v%s" % version, commit, "-f", "-F", filename], env=environment_variables)


def main(argv):
    for filename in sorted(os.listdir(".")):
        if filename.endswith(".rst"):
            matched = RELEASE_NOTE_PATTERN.match(filename)
            if matched:
                process_file(filename, matched.group(1))
            else:
                raise "  Invalid filename: %s" % filename


if __name__ == '__main__':
    sys.exit(main(sys.argv))