Files
rippled/.github/scripts/check-pr-description.py

86 lines
2.5 KiB
Python

#!/usr/bin/env python3
"""
Checks that a pull request description has been customized from the
pull_request_template.md. Exits with code 1 if the description is empty
or identical to the template (ignoring HTML comments and whitespace).
Usage:
python check-pr-description.py --template-file TEMPLATE --pr-body-file BODY
"""
import argparse
import re
import sys
from pathlib import Path
def normalize(text: str) -> str:
"""Strip HTML comments, trim lines, and remove blank lines."""
# Remove HTML comments (possibly multi-line)
text = re.sub(r"<!--.*?-->", "", text, flags=re.DOTALL)
# Strip each line and drop empties
lines = [line.strip() for line in text.splitlines()]
lines = [line for line in lines if line]
return "\n".join(lines)
def main() -> int:
parser = argparse.ArgumentParser(
description="Check that a PR description differs from the template."
)
parser.add_argument(
"--template-file",
type=Path,
required=True,
help="Path to the pull request template file.",
)
parser.add_argument(
"--pr-body-file",
type=Path,
required=True,
help="Path to a file containing the PR body text.",
)
args = parser.parse_args()
template_path: Path = args.template_file
pr_body_path: Path = args.pr_body_file
if not template_path.is_file():
print(f"::error::Template file {template_path} not found")
return 1
if not pr_body_path.is_file():
print(f"::error::PR body file {pr_body_path} not found")
return 1
template = template_path.read_text(encoding="utf-8")
pr_body = pr_body_path.read_text(encoding="utf-8")
# Check if the PR body is empty or whitespace-only
if not pr_body.strip():
print(
"::error::PR description is empty. "
"Please fill in the pull request template."
)
return 1
norm_template = normalize(template)
norm_pr_body = normalize(pr_body)
if norm_pr_body == norm_template:
print(
"::error::PR description (ignoring HTML comments) is identical"
" to the template. Please fill in the details of your change."
f"\n\nVisible template content:\n---\n{norm_template}\n---"
f"\n\nVisible PR description content:\n---\n{norm_pr_body}\n---"
)
return 1
print("PR description has been customized from the template.")
return 0
if __name__ == "__main__":
sys.exit(main())