66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
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#!/usr/bin/env python3
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#
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# Copyright (c) 2020-2022 The Moneyrocket Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#
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# Linter to check that commit messages have a new line before the body
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# or no body at all
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import argparse
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import os
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import sys
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from subprocess import check_output
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def parse_args():
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"""Parse command line arguments."""
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parser = argparse.ArgumentParser(
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description="""
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Linter to check that commit messages have a new line before
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the body or no body at all.
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""",
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epilog=f"""
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You can manually set the commit-range with the COMMIT_RANGE
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environment variable (e.g. "COMMIT_RANGE='47ba2c3...ee50c9e'
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{sys.argv[0]}"). Defaults to current merge base when neither
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prev-commits nor the environment variable is set.
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""")
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parser.add_argument("--prev-commits", "-p", required=False, help="The previous n commits to check")
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return parser.parse_args()
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def main():
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args = parse_args()
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exit_code = 0
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if not os.getenv("COMMIT_RANGE"):
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if args.prev_commits:
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commit_range = "HEAD~" + args.prev_commits + "...HEAD"
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else:
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# This assumes that the target branch of the pull request will be master.
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merge_base = check_output(["git", "merge-base", "HEAD", "master"], text=True, encoding="utf8").rstrip("\n")
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commit_range = merge_base + "..HEAD"
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else:
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commit_range = os.getenv("COMMIT_RANGE")
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if commit_range == "SKIP_EMPTY_NOT_A_PR":
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sys.exit(0)
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commit_hashes = check_output(["git", "log", commit_range, "--format=%H"], text=True, encoding="utf8").splitlines()
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for hash in commit_hashes:
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commit_info = check_output(["git", "log", "--format=%B", "-n", "1", hash], text=True, encoding="utf8").splitlines()
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if len(commit_info) >= 2:
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if commit_info[1]:
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print(f"The subject line of commit hash {hash} is followed by a non-empty line. Subject lines should always be followed by a blank line.")
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exit_code = 1
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sys.exit(exit_code)
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if __name__ == "__main__":
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main()
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