8
def print_(args: argparse.Namespace, success: bool, message: str) -> None:
10
Print function with extra coloring when supported and/or requested,
11
and with a "quiet" switch
14
COLOR_SUCCESS = '\033[32m'
15
COLOR_FAILURE = '\033[31m'
16
COLOR_RESET = '\033[0m'
21
if args.color == 'auto':
22
use_colors = sys.stdout.isatty()
24
use_colors = args.color == 'always'
41
def is_commit_valid(commit: str) -> bool:
42
ret = subprocess.call(['git', 'cat-file', '-e', commit],
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stdout=subprocess.DEVNULL,
44
stderr=subprocess.DEVNULL)
48
def branch_has_commit(upstream: str, branch: str, commit: str) -> bool:
50
Returns True if the commit is actually present in the branch
52
ret = subprocess.call(['git', 'merge-base', '--is-ancestor',
53
commit, upstream + '/' + branch],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL)
59
def branch_has_backport_of_commit(upstream: str, branch: str, commit: str) -> str:
61
Returns the commit hash if the commit has been backported to the branch,
62
or an empty string if is hasn't
64
out = subprocess.check_output(['git', 'log', '--format=%H',
65
branch + '-branchpoint..' + upstream + '/' + branch,
66
'--grep', 'cherry picked from commit ' + commit],
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stderr=subprocess.DEVNULL)
68
return out.decode().strip()
71
def canonicalize_commit(commit: str) -> str:
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Takes a commit-ish and returns a commit sha1 if the commit exists
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# Make sure input is valid first
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if not is_commit_valid(commit):
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raise argparse.ArgumentTypeError('invalid commit identifier: ' + commit)
80
out = subprocess.check_output(['git', 'rev-parse', commit],
81
stderr=subprocess.DEVNULL)
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return out.decode().strip()
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def validate_branch(branch: str) -> str:
87
raise argparse.ArgumentTypeError('must be in the form `remote/branch`')
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out = subprocess.check_output(['git', 'remote', '--verbose'],
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stderr=subprocess.DEVNULL)
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remotes = out.decode().splitlines()
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(upstream, _) = branch.split('/')
95
if line.startswith(upstream + '\t'):
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raise argparse.ArgumentTypeError('Invalid remote: ' + upstream)
101
if not is_commit_valid(branch):
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raise argparse.ArgumentTypeError('Invalid branch: ' + branch)
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if __name__ == "__main__":
108
parser = argparse.ArgumentParser(description="""
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Returns 0 if the commit is present in the branch,
111
and 2 if it couldn't be determined (eg. invalid commit)
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parser.add_argument('commit',
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type=canonicalize_commit,
116
parser.add_argument('branch',
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type=validate_branch,
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help='branch to check, in the form `remote/branch`')
119
parser.add_argument('--quiet',
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help='suppress all output; exit code can still be used')
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parser.add_argument('--color',
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choices=['auto', 'always', 'never'],
125
help='colorize output (default: true if stdout is a terminal)')
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args = parser.parse_args()
128
(upstream, branch) = args.branch.split('/')
130
if branch_has_commit(upstream, branch, args.commit):
131
print_(args, True, 'Commit ' + args.commit + ' is in branch ' + branch)
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backport = branch_has_backport_of_commit(upstream, branch, args.commit)
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'Commit ' + args.commit + ' was backported to branch ' + branch + ' as commit ' + backport)
140
print_(args, False, 'Commit ' + args.commit + ' is NOT in branch ' + branch)