Ticket #2209: post-commit.trac-create-version

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This script should be invoked from the subversion post-commit hook like this:
#
#  REPOS="$1"
#  REV="$2"
#  $REPOS/hooks/post-commit.trac-create-version "$REPOS" "$REV"
#
# Daniel Serodio <dserodio gmail>

import re
import sys
import os

TRAC_ENV_ROOT = '/var/lib/trac'
versions_re = re.compile(r'^A\W*([\w-]+)/tags/([^/]+)')

def main():
    if len(sys.argv) != 3:
        print >> sys.stderr, 'Usage: %s <repository> <revision>' % sys.argv[0]
        sys.exit(1)

    repos = sys.argv[1]
    rev = sys.argv[2]
    changed_files = os.popen("svnlook changed -r %s %s" % (rev, repos)).readlines()

    for file in changed_files:
        match = versions_re.search(file)
        if match: # we found a new tag
            project = match.group(1)
            version = match.group(2)
            version_full = "%s-%s" % ( project, version )
            repo = os.path.basename(repos)
            trac_env = os.path.join(TRAC_ENV_ROOT, repo)
            # create the version
            os.popen("trac-admin %s version add %s now" % (trac_env, version_full))
            # close the milestone
            os.popen("trac-admin %s milestone completed %s now" % (trac_env, version_full))
            # guess the next version
            groups = re.match(r'([0-9]+)(([-.][0-9]+)*)?([-.][0-9]+)|([0-9]+)', version).groups()
            if groups[-1]:
                versioninc = str(int(groups[-1]) + 1)
            else:
                last = groups[-2]
                g = re.match(r'([-.])([0-9]+)', last).groups()
                lastinc = int(g[1]) + 1
                versioninc = groups[0] + groups[1] + g[0] + str(lastinc)
            # create the next milestone
            os.popen("trac-admin %s milestone add %s" % (trac_env, versioninc))

    sys.exit(0)

if __name__ == '__main__':
    main()