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#!/usr/bin/env python3
# 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.
import argparse
import sys
import subprocess2
import gclient_utils
import git_common as git
def main(args):
if gclient_utils.IsEnvCog():
print(
'upstream-diff command is not supported. Please navigate to source '
'control view in the activity bar to check the diff.',
file=sys.stderr)
return 1
default_args = git.get_config_list('depot-tools.upstream-diff.default-args')
args = default_args + args
current_branch = git.current_branch()
parser = argparse.ArgumentParser()
parser.add_argument('--wordwise',
action='store_true',
default=False,
help=('Print a colorized wordwise diff '
'instead of line-wise diff'))
parser.add_argument('--branch',
default=current_branch,
help='Show changes from a different branch. Passing '
'"HEAD" is the same as omitting this option (it '
'diffs against the current branch)')
opts, extra_args = parser.parse_known_args(args)
if opts.branch == 'HEAD':
opts.branch = current_branch
if not opts.branch or opts.branch == 'HEAD':
print('fatal: Cannot perform git-upstream-diff while not on a branch')
return 1
par = git.upstream(opts.branch)
if not par:
print('fatal: No upstream configured for branch \'%s\'' % opts.branch)
return 1
cmd = [
git.GIT_EXE, '-c', 'core.quotePath=false', 'diff', '--patience', '-C',
'-C'
]
if opts.wordwise:
cmd += ['--word-diff=color', r'--word-diff-regex=(\w+|[^[:space:]])']
cmd += [git.get_or_create_merge_base(opts.branch, par)]
# Only specify the end commit if it is not the current branch, this lets the
# diff include uncommitted changes when diffing the current branch.
if opts.branch != current_branch:
cmd += [opts.branch]
cmd += extra_args
return subprocess2.check_call(cmd)
if __name__ == '__main__':
try:
sys.exit(main(sys.argv[1:]))
except KeyboardInterrupt:
sys.stderr.write('interrupted\n')
sys.exit(1)
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