Latest {badge

#!/usr/bin/env python3 # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # # Authors: # Tristan Van Berkom # import click import subprocess import re # The badge template is modeled after the gitlab badge svgs # BADGE_TEMPLATE = """ """ # The redirect template is for a static html page hosted in the # latest docs which always redirects you to the latest release on github. # REDIRECT_TEMPLATE = """ Latest {badge_name}

""" URL_FORMAT = 'https://github.com/apache/buildstream/releases/tag/{version}' RELEASE_COLOR = '#0040FF' VERSION_TAG_MATCH = r'([0-9]*)\.([0-9]*)\.([0-9]*)' # Parse a release tag and return a three tuple # of the major, minor and micro version. # # Tags which do not follow the release tag format # will just be returned as (0, 0, 0) # def parse_tag(tag): match = re.search(VERSION_TAG_MATCH, tag) if match: major = match.group(1) minor = match.group(2) micro = match.group(3) return (int(major), int(minor), int(micro)) return (0, 0, 0) # Call out to git and guess the latest version, # this will just return (0, 0, 0) in case of any error. # def guess_version(): try: tags_output = subprocess.check_output(['git', 'tag']) except subprocess.CalledProcessError: return (0, 0, 0) # Parse the `git tag` output into a list of integer tuples tags_output = tags_output.decode('UTF-8') all_tags = tags_output.splitlines() all_versions = [parse_tag(tag) for tag in all_tags] # Make sure they are sorted, and take the last one sorted_versions = sorted(all_versions) latest_version = sorted_versions[-1] return latest_version @click.command(short_help="Generate the version badges") @click.option('--redirect', is_flag=True, default=False, help="Whether to generate the redirect html file") def generate_badges(redirect): """Generate the version badge svg files """ major, minor, micro = guess_version() badge_name = 'release' color = RELEASE_COLOR version = '{major}.{minor}.{micro}'.format(major=major, minor=minor, micro=micro) url_target = URL_FORMAT.format(version=version) if redirect: template = REDIRECT_TEMPLATE else: template = BADGE_TEMPLATE output = template.format(badge_name=badge_name, version=version, color=color, url_target=url_target) click.echo(output, nl=False) return 0 if __name__ == '__main__': generate_badges()