Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | # Copyright 2015 the V8 project authors. All rights reserved. |
| 3 | # Use of this source code is governed by a BSD-style license that can be |
| 4 | # found in the LICENSE file. |
| 5 | |
| 6 | import argparse |
| 7 | import os |
| 8 | import sys |
| 9 | |
| 10 | from search_related_commits import git_execute |
| 11 | |
| 12 | GIT_OPTION_HASH_ONLY = '--pretty=format:%H' |
| 13 | GIT_OPTION_NO_DIFF = '--quiet' |
| 14 | GIT_OPTION_ONELINE = '--oneline' |
| 15 | |
| 16 | def describe_commit(git_working_dir, hash_to_search, one_line=False): |
| 17 | if one_line: |
| 18 | return git_execute(git_working_dir, ['show', |
| 19 | GIT_OPTION_NO_DIFF, |
| 20 | GIT_OPTION_ONELINE, |
| 21 | hash_to_search]).strip() |
| 22 | return git_execute(git_working_dir, ['show', |
| 23 | GIT_OPTION_NO_DIFF, |
| 24 | hash_to_search]).strip() |
| 25 | |
| 26 | |
| 27 | def get_followup_commits(git_working_dir, hash_to_search): |
| 28 | return git_execute(git_working_dir, ['log', |
| 29 | '--grep=' + hash_to_search, |
| 30 | GIT_OPTION_HASH_ONLY, |
| 31 | 'master']).strip().splitlines() |
| 32 | |
| 33 | def get_merge_commits(git_working_dir, hash_to_search): |
| 34 | merges = get_related_commits_not_on_master(git_working_dir, hash_to_search) |
| 35 | false_merges = get_related_commits_not_on_master( |
| 36 | git_working_dir, 'Cr-Branched-From: ' + hash_to_search) |
| 37 | false_merges = set(false_merges) |
| 38 | return ([merge_commit for merge_commit in merges |
| 39 | if merge_commit not in false_merges]) |
| 40 | |
| 41 | def get_related_commits_not_on_master(git_working_dir, grep_command): |
| 42 | commits = git_execute(git_working_dir, ['log', |
| 43 | '--all', |
| 44 | '--grep=' + grep_command, |
| 45 | GIT_OPTION_ONELINE, |
| 46 | '--decorate', |
| 47 | '--not', |
| 48 | 'master', |
| 49 | GIT_OPTION_HASH_ONLY]) |
| 50 | return commits.splitlines() |
| 51 | |
| 52 | def get_branches_for_commit(git_working_dir, hash_to_search): |
| 53 | branches = git_execute(git_working_dir, ['branch', |
| 54 | '--contains', |
| 55 | hash_to_search, |
| 56 | '-a']).strip() |
| 57 | branches = branches.splitlines() |
| 58 | return map(str.strip, branches) |
| 59 | |
| 60 | def is_lkgr(git_working_dir, hash_to_search): |
| 61 | branches = get_branches_for_commit(git_working_dir, hash_to_search) |
| 62 | return 'remotes/origin/lkgr' in branches |
| 63 | |
| 64 | def get_first_canary(git_working_dir, hash_to_search): |
| 65 | branches = get_branches_for_commit(git_working_dir, hash_to_search) |
| 66 | canaries = ([currentBranch for currentBranch in branches if |
| 67 | currentBranch.startswith('remotes/origin/chromium/')]) |
| 68 | canaries.sort() |
| 69 | if len(canaries) == 0: |
| 70 | return 'No Canary coverage' |
| 71 | return canaries[0].split('/')[-1] |
| 72 | |
| 73 | def print_analysis(git_working_dir, hash_to_search): |
| 74 | print '1.) Searching for "' + hash_to_search + '"' |
| 75 | print '=====================ORIGINAL COMMIT START===================' |
| 76 | print describe_commit(git_working_dir, hash_to_search) |
| 77 | print '=====================ORIGINAL COMMIT END=====================' |
| 78 | print '2.) General information:' |
| 79 | print 'Is LKGR: ' + str(is_lkgr(git_working_dir, hash_to_search)) |
| 80 | print 'Is on Canary: ' + ( |
| 81 | str(get_first_canary(git_working_dir, hash_to_search))) |
| 82 | print '3.) Found follow-up commits, reverts and ports:' |
| 83 | followups = get_followup_commits(git_working_dir, hash_to_search) |
| 84 | for followup in followups: |
| 85 | print describe_commit(git_working_dir, followup, True) |
| 86 | |
| 87 | print '4.) Found merges:' |
| 88 | merges = get_merge_commits(git_working_dir, hash_to_search) |
| 89 | for currentMerge in merges: |
| 90 | print describe_commit(git_working_dir, currentMerge, True) |
| 91 | print '---Merged to:' |
| 92 | mergeOutput = git_execute(git_working_dir, ['branch', |
| 93 | '--contains', |
| 94 | currentMerge, |
| 95 | '-r']).strip() |
| 96 | print mergeOutput |
| 97 | print 'Finished successfully' |
| 98 | |
| 99 | if __name__ == '__main__': # pragma: no cover |
| 100 | parser = argparse.ArgumentParser('Tool to check where a git commit was' |
| 101 | ' merged and reverted.') |
| 102 | |
| 103 | parser.add_argument('-g', '--git-dir', required=False, default='.', |
| 104 | help='The path to your git working directory.') |
| 105 | |
| 106 | parser.add_argument('hash', |
| 107 | nargs=1, |
| 108 | help='Hash of the commit to be searched.') |
| 109 | |
| 110 | args = sys.argv[1:] |
| 111 | options = parser.parse_args(args) |
| 112 | |
| 113 | sys.exit(print_analysis(options.git_dir, options.hash[0])) |