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#!/usr/bin/env python3
import sys
allowed_subject_len = 72
allowed_body_len = 72
# Handy function borrowed from coverage.py
def die(msg: str):
print(f"Aborting commit: {msg}", file=sys.stderr)
sys.exit(1)
f = open(sys.argv[1])
lines = [l.strip() for l in f if not l.startswith("#")]
subject = lines.pop(0)
if len(subject) > allowed_subject_len:
die(f"Subject {len(subject)} characters long, maximum allowed is "
f"{allowed_subject_len}")
if not lines:
sys.exit(0)
space = lines.pop(0)
if len(space) > 0:
die(f"Second line of commit message should be blank")
for line in lines:
if len(line) > allowed_body_len:
die(f"Body has a line {len(line)} characters long, maximum allowed is "
f"{allowed_body_len}")
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