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#! /usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2011 Grzegorz Sobański
#
# Version: 2.0
#
# Git post receive script developed for mlabs
# - adds the commits to trac
# based on post-receive-email from git-contrib
#
import re
import os
import sys
from subprocess import Popen, PIPE, call
# config
TRAC_ENV = '/home/www/alias'
GIT_PATH = '/usr/bin/git'
TRAC_ADMIN = '/usr/bin/trac-admin'
REPO_NAME = '(default)'
# communication with git
def call_git(command, args, input=None):
return Popen([GIT_PATH, command] + args, stdin=PIPE, stdout=PIPE).communicate(input)[0]
def get_new_commits(ref_updates):
""" Gets a list uf updates from git running post-receive,
we want the list of new commits to the repo, that are part
of the push. Even if the are in more then one ref in the push.
Basically, we are running:
git rev-list new1 ^old1 new2 ^old2 ^everything_else
It returns a list of commits"""
all_refs = set(call_git('for-each-ref', ['--format=%(refname)']).splitlines())
commands = []
for old, new, ref in ref_updates:
# branch delete, skip it
if re.match('0*$', new):
continue
commands += [new]
all_refs.discard(ref)
if not re.match('0*$', old):
# update
commands += ["^%s" % old]
# else: new - do nothing more
for ref in all_refs:
commands += ["^%s" % ref]
new_commits = call_git('rev-list', ['--stdin', '--reverse'], '\n'.join(commands)).splitlines()
return new_commits
def handle_trac(commits):
if not (os.path.exists(TRAC_ENV) and os.path.isdir(TRAC_ENV)):
print "Trac path (%s) is not a directory." % TRAC_ENV
if len(commits) == 0:
return
args = [TRAC_ADMIN, TRAC_ENV, 'changeset', 'added', REPO_NAME] + commits
call(args)
# main
if __name__ == '__main__':
# gather all commits, to call trac-admin only once
lines = sys.stdin.readlines()
updates = [line.split() for line in lines]
commits = get_new_commits(updates)
# call trac-admin
handle_trac(commits)
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