blob: 0e8f341c7ca616c50cd7e3a75a1f0b3af0981640 [file] [log] [blame]
#!/usr/bin/env python
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Performs all git-svn setup steps necessary for 'git svn dcommit' to work.
Assumes that trunk of the svn remote maps to master of the git remote.
git clone
cd depot_tools
git auto-svn
import argparse
import os
import sys
import urlparse
import subprocess2
from git_common import run as run_git
from git_common import run_stream as run_git_stream
from git_common import set_config, root, ROOT
from git_footers import parse_footers, get_unique, GIT_SVN_ID_PATTERN
SVN_EXE = ROOT+'\\svn.bat' if sys.platform.startswith('win') else 'svn'
def run_svn(*cmd, **kwargs):
"""Runs an svn command.
Returns (stdout, stderr) as a pair of strings.
Raises subprocess2.CalledProcessError on nonzero return code.
kwargs.setdefault('stdin', subprocess2.PIPE)
kwargs.setdefault('stdout', subprocess2.PIPE)
kwargs.setdefault('stderr', subprocess2.PIPE)
cmd = (SVN_EXE,) + cmd
proc = subprocess2.Popen(cmd, **kwargs)
ret, err = proc.communicate()
retcode = proc.wait()
if retcode != 0:
raise subprocess2.CalledProcessError(retcode, cmd, os.getcwd(), ret, err)
return ret, err
def main(argv):
# No command line flags. Just use the parser to prevent people from trying
# to pass flags that don't do anything, and to provide 'usage'.
parser = argparse.ArgumentParser(
description='Automatically set up git-svn for a repo mirrored from svn.')
upstream = root()
message = run_git('log', '-1', '--format=%B', upstream)
footers = parse_footers(message)
git_svn_id = get_unique(footers, 'git-svn-id')
match = GIT_SVN_ID_PATTERN.match(git_svn_id)
assert match, 'No valid git-svn-id footer found on %s.' % upstream
print 'Found git-svn-id footer %s on %s' % (, upstream)
parsed_svn = urlparse.urlparse(
path_components = parsed_svn.path.split('/')
svn_repo = None
svn_path = None
for i in xrange(len(path_components)):
maybe_repo = '%s://%s%s' % (
parsed_svn.scheme, parsed_svn.netloc, '/'.join(path_components[:i+1]))
print 'Checking ', maybe_repo
run_svn('info', maybe_repo)
svn_repo = maybe_repo
svn_path = '/'.join(path_components[i+1:])
except subprocess2.CalledProcessError, e:
if 'E170001' in str(e):
print 'Authentication failed:'
print e
print ('Try running "svn ls %s" with the password'
' from' % maybe_repo)
assert svn_repo is not None, 'Unable to find svn repo for %s' %
print 'Found upstream svn repo %s and path %s' % (svn_repo, svn_path)
set_config('svn-remote.svn.url', svn_repo)
'%s:refs/remotes/%s' % (svn_path, upstream))
print 'Configured metadata, running "git svn fetch". This may take some time.'
for line in run_git_stream('svn', 'fetch').xreadlines():
print line.strip()
return 0
if __name__ == '__main__':
except KeyboardInterrupt: