v8/tools/release/mergeinfo.py
hablich e267936c42 [Release] Remove usage of roll ref
The roll ref is no longer used because we
simply roll the lkgr ref.

LOG=N
NOTRY=true
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1391153002

Cr-Commit-Position: refs/heads/master@{#31140}
2015-10-07 10:27:23 +00:00

114 lines
4.6 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright 2015 the V8 project 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 os
import sys
from search_related_commits import git_execute
GIT_OPTION_HASH_ONLY = '--pretty=format:%H'
GIT_OPTION_NO_DIFF = '--quiet'
GIT_OPTION_ONELINE = '--oneline'
def describe_commit(git_working_dir, hash_to_search, one_line=False):
if one_line:
return git_execute(git_working_dir, ['show',
GIT_OPTION_NO_DIFF,
GIT_OPTION_ONELINE,
hash_to_search]).strip()
return git_execute(git_working_dir, ['show',
GIT_OPTION_NO_DIFF,
hash_to_search]).strip()
def get_followup_commits(git_working_dir, hash_to_search):
return git_execute(git_working_dir, ['log',
'--grep=' + hash_to_search,
GIT_OPTION_HASH_ONLY,
'master']).strip().splitlines()
def get_merge_commits(git_working_dir, hash_to_search):
merges = get_related_commits_not_on_master(git_working_dir, hash_to_search)
false_merges = get_related_commits_not_on_master(
git_working_dir, 'Cr-Branched-From: ' + hash_to_search)
false_merges = set(false_merges)
return ([merge_commit for merge_commit in merges
if merge_commit not in false_merges])
def get_related_commits_not_on_master(git_working_dir, grep_command):
commits = git_execute(git_working_dir, ['log',
'--all',
'--grep=' + grep_command,
GIT_OPTION_ONELINE,
'--decorate',
'--not',
'master',
GIT_OPTION_HASH_ONLY])
return commits.splitlines()
def get_branches_for_commit(git_working_dir, hash_to_search):
branches = git_execute(git_working_dir, ['branch',
'--contains',
hash_to_search,
'-a']).strip()
branches = branches.splitlines()
return map(str.strip, branches)
def is_lkgr(git_working_dir, hash_to_search):
branches = get_branches_for_commit(git_working_dir, hash_to_search)
return 'remotes/origin/lkgr' in branches
def get_first_canary(git_working_dir, hash_to_search):
branches = get_branches_for_commit(git_working_dir, hash_to_search)
canaries = ([currentBranch for currentBranch in branches if
currentBranch.startswith('remotes/origin/chromium/')])
canaries.sort()
if len(canaries) == 0:
return 'No Canary coverage'
return canaries[0].split('/')[-1]
def print_analysis(git_working_dir, hash_to_search):
print '1.) Searching for "' + hash_to_search + '"'
print '=====================ORIGINAL COMMIT START==================='
print describe_commit(git_working_dir, hash_to_search)
print '=====================ORIGINAL COMMIT END====================='
print '2.) General information:'
print 'Is LKGR: ' + str(is_lkgr(git_working_dir, hash_to_search))
print 'Is on Canary: ' + (
str(get_first_canary(git_working_dir, hash_to_search)))
print '3.) Found follow-up commits, reverts and ports:'
followups = get_followup_commits(git_working_dir, hash_to_search)
for followup in followups:
print describe_commit(git_working_dir, followup, True)
print '4.) Found merges:'
merges = get_merge_commits(git_working_dir, hash_to_search)
for currentMerge in merges:
print describe_commit(git_working_dir, currentMerge, True)
print '---Merged to:'
mergeOutput = git_execute(git_working_dir, ['branch',
'--contains',
currentMerge,
'-r']).strip()
print mergeOutput
print 'Finished successfully'
if __name__ == '__main__': # pragma: no cover
parser = argparse.ArgumentParser('Tool to check where a git commit was'
' merged and reverted.')
parser.add_argument('-g', '--git-dir', required=False, default='.',
help='The path to your git working directory.')
parser.add_argument('hash',
nargs=1,
help='Hash of the commit to be searched.')
args = sys.argv[1:]
options = parser.parse_args(args)
sys.exit(print_analysis(options.git_dir, options.hash[0]))