blob: 214b3dfe468dfeacf6fb0fa4374dd884828100d8 [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.
Explicitly set/remove/print the merge-base for the current branch.
This manually set merge base will be a stand-in for `git merge-base` for the
purposes of the chromium depot_tools git extensions. Passing no arguments will
just print the effective merge base for the current branch.
import argparse
import sys
from subprocess2 import CalledProcessError
from git_common import remove_merge_base, manual_merge_base, current_branch
from git_common import get_or_create_merge_base, hash_one, upstream
def main(argv):
parser = argparse.ArgumentParser(
epilog=' '.join(__doc__.strip().splitlines()[1:]))
g = parser.add_mutually_exclusive_group()
'merge_base', nargs='?',
help='The new hash to use as the merge base for the current branch'
g.add_argument('--delete', '-d', action='store_true',
help='Remove the set mark.')
opts = parser.parse_args(argv)
cur = current_branch()
if opts.delete:
except CalledProcessError:
print 'No merge base currently exists for %s.' % cur
return 0
if opts.merge_base:
opts.merge_base = hash_one(opts.merge_base)
except CalledProcessError:
print >> sys.stderr, (
'fatal: could not resolve %s as a commit' % (opts.merge_base)
return 1
manual_merge_base(cur, opts.merge_base, upstream(cur))
ret = 0
actual = get_or_create_merge_base(cur)
if opts.merge_base and opts.merge_base != actual:
ret = 1
print "Invalid merge_base %s" % opts.merge_base
print "merge_base(%s): %s" % (cur, actual)
return ret
if __name__ == '__main__':
except KeyboardInterrupt: