File: make-release-notes.py

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#! /usr/bin/env python3

import re
import sys

_, VERSION, CHANGELOG, LIST = sys.argv
HEADER_REGEX = fr"# {VERSION} \(\d\d\d\d-\d\d-\d\d\)\n"

notes_list = []


def add_to_release_notes(line):
    assert line.endswith('.'), line
    notes_list.append(f'* {line}\n')


with open(CHANGELOG) as f:
    first_line = next(f)
    if not re.match(HEADER_REGEX, first_line):
        sys.exit(
            f'First changelog line "{first_line.rstrip()}" must '
            f'start with "{HEADER_REGEX.rstrip()}"')
    notes_list.extend([first_line[2:], "\n"])
    for line in f:
        if not line.strip():
            continue
        if line.startswith("* "):
            add_to_release_notes(line[2:].strip())
        else:
            break


def check(name, text):
    print('*' * 60)
    print(text)
    print('*' * 60)
    response = input('Accept this %s (Y/n)? ' % name).strip().lower()
    if response and response != 'y':
        sys.exit(1)


check('changelog', ''.join(notes_list))

with open(LIST, 'w') as f:
    f.writelines(notes_list)