Files
codeql-action/.github/workflows/script/rollback_changelog.py
2025-08-29 13:06:21 +01:00

63 lines
2.4 KiB
Python

import datetime
import os
import argparse
EMPTY_CHANGELOG = """# CodeQL Action Changelog
"""
def get_today_string():
today = datetime.datetime.today()
return '{:%d %b %Y}'.format(today)
# Include everything up to and after the first heading,
# but not the first heading and body.
def drop_unreleased_section(lines: list[str]):
before_first_section = ''
after_first_section = ''
found_first_section = False
skipped_first_section = False
for i, line in enumerate(lines):
if line.startswith('## ') and not found_first_section:
found_first_section = True
elif line.startswith('## ') and found_first_section:
skipped_first_section = True
if not found_first_section:
before_first_section += line
if skipped_first_section:
after_first_section += line
return (before_first_section, after_first_section)
def update_changelog(target_version, rollback_version, new_version):
before_first_section = EMPTY_CHANGELOG
after_first_section = ''
if (os.path.exists('CHANGELOG.md')):
with open('CHANGELOG.md', 'r') as f:
(before_first_section, after_first_section) = drop_unreleased_section(f.readlines())
newHeader = f'## {new_version} - {get_today_string()}\n'
print(before_first_section, end="")
print(newHeader)
print(f"This release rolls back {rollback_version} due to issues with that release. It is identical to {target_version}.\n")
print(after_first_section)
# We expect three version strings as input:
#
# - target_version: the version that we are re-releasing as `new_version`
# - rollback_version: the version that we are rolling back, typically the one that followed `target_version`
# - new_version: the new version that we are releasing `target_version` as, typically the one that follows `rollback_version`
#
# Example: python3 .github/workflows/script/rollback_changelog.py --target-version "1.2.3" --rollback-version "1.2.4" --new-version "1.2.5"
parser = argparse.ArgumentParser(description="Update CHANGELOG.md for a rollback release.")
parser.add_argument("--target-version", "-t", required=True, help="Version to re-release as new_version.")
parser.add_argument("--rollback-version", "-r", required=True, help="Version being rolled back.")
parser.add_argument("--new-version", "-n", required=True, help="New version to publish for target_version.")
args = parser.parse_args()
update_changelog(args.target_version, args.rollback_version, args.new_version)