| #!/usr/bin/env python |
| |
| # Copyright 2016 Google Inc |
| # |
| # 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. |
| |
| """Generates READMEs using configuration defined in yaml.""" |
| |
| import argparse |
| import io |
| import os |
| import subprocess |
| |
| import jinja2 |
| import yaml |
| |
| |
| jinja_env = jinja2.Environment( |
| trim_blocks=True, |
| loader=jinja2.FileSystemLoader( |
| os.path.abspath(os.path.join(os.path.dirname(__file__), 'templates')))) |
| |
| README_TMPL = jinja_env.get_template('README.tmpl.rst') |
| |
| |
| def get_help(file): |
| return subprocess.check_output(['python', file, '--help']).decode() |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser() |
| parser.add_argument('source') |
| parser.add_argument('--destination', default='README.rst') |
| |
| args = parser.parse_args() |
| |
| source = os.path.abspath(args.source) |
| root = os.path.dirname(source) |
| destination = os.path.join(root, args.destination) |
| |
| jinja_env.globals['get_help'] = get_help |
| |
| with io.open(source, 'r') as f: |
| config = yaml.load(f) |
| |
| # This allows get_help to execute in the right directory. |
| os.chdir(root) |
| |
| output = README_TMPL.render(config) |
| |
| with io.open(destination, 'w') as f: |
| f.write(output) |
| |
| |
| if __name__ == '__main__': |
| main() |