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- #!/usr/bin/env python3
- import re
- import datetime
- from xml.etree import ElementTree as ET
- import argparse
- def parse_changelog(changelog_path):
- version_re = re.compile(r'([\d.-]+)\s+(\w+)?\s*\((\d{2}.\d{2}\.\d{2})\)')
- entry_re = re.compile(r'-\s(.*)')
- with open(changelog_path, "r", encoding="utf-8") as f:
- changelog_lines = f.read().splitlines()
- releases = []
- for l in changelog_lines:
- version_match = version_re.match(l)
- entry_match = entry_re.match(l)
- if version_match is not None:
- version, prerelease, date = version_match.groups()
- release = (version,
- prerelease,
- datetime.datetime.strptime(date, '%d.%m.%y').date(),
- [])
- releases.append(release)
- elif entry_match is not None:
- release[3].append(entry_match.group(1))
- return releases
- def get_release_xml(version, prerelease, date, changes):
- release = ET.Element("release")
- if prerelease is None:
- ver_str = version
- else:
- ver_str = f"{version}~{prerelease}"
- release.set("version", ver_str)
- release.set("date", date.isoformat())
- description = ET.SubElement(release, "description")
- changelist = ET.SubElement(description, "ul")
- for c in changes:
- change = ET.SubElement(changelist, "li")
- change.text = c
- return release
- def get_changelog_xml(changelog, max_items=None):
- releases = ET.Element("releases")
- if max_items is not None:
- changelog = changelog[:max_items]
- for rel in changelog:
- release = get_release_xml(*rel)
- releases.append(release)
- return releases
- def update_appdata(appdata_path, changelog, max_items=None):
- appdata = ET.parse(appdata_path)
- root = appdata.getroot()
- releases = root.find("releases")
- if releases is not None:
- root.remove(releases)
- root.append(
- get_changelog_xml(changelog, max_items)
- )
- appdata.write(appdata_path, encoding="utf-8", xml_declaration=True)
- def main():
- ap = argparse.ArgumentParser("Parse Telegram changelog")
- ap.add_argument("-c", "--changelog-path", default="changelog.txt")
- ap.add_argument("-a", "--appdata-path", default="lib/xdg/org.telegram.desktop.metainfo.xml")
- ap.add_argument("-n", "--num-releases", type=int, default=None)
- args = ap.parse_args()
- update_appdata(args.appdata_path,
- parse_changelog(args.changelog_path),
- max_items=args.num_releases)
- if __name__ == "__main__":
- main()
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