"""Receipt of the photos actually rendered by this build."""
import json
import os
from pathlib import Path
import re

photos = sorted(set(re.findall(r'id="photo-([a-f0-9]{64})"', Path('_site/art/index.html').read_text())))
Path('_site/photo-publication.json').write_text(json.dumps({
    'commit': os.environ['GITHUB_SHA'], 'photos': photos,
}) + '\n')