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- #!/usr/bin/env python3
- # Copyright 2018 The Meson development team
- # 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.
- import argparse
- import os
- import subprocess
- import sys
- import traceback
- def check_pr(is_pr_env):
- if is_pr_env not in os.environ:
- print(f'This is not pull request: {is_pr_env} is not set')
- sys.exit()
- elif os.environ[is_pr_env] == 'false':
- print(f'This is not pull request: {is_pr_env} is false')
- sys.exit()
- def get_base_branch(base_env):
- if base_env not in os.environ:
- print(f'Unable to determine base branch: {base_env} is not set')
- sys.exit()
- return os.environ[base_env]
- def get_git_files(base):
- diff = subprocess.check_output(['git', 'diff', '--name-only', base + '...HEAD'])
- return diff.strip().split(b'\n')
- def is_documentation(filename):
- return filename.startswith(b'docs/')
- def main():
- try:
- parser = argparse.ArgumentParser(description='CI Skipper')
- parser.add_argument('--base-branch-env', required=True,
- help='Branch push is targeted to')
- parser.add_argument('--is-pull-env', required=True,
- help='Variable set if it is a PR')
- parser.add_argument('--base-branch-origin', action='store_true',
- help='Base branch reference is only in origin remote')
- args = parser.parse_args()
- check_pr(args.is_pull_env)
- base = get_base_branch(args.base_branch_env)
- if args.base_branch_origin:
- base = 'origin/' + base
- if all(is_documentation(f) for f in get_git_files(base)):
- print("Documentation change, CI skipped.")
- sys.exit(1)
- except Exception:
- # If this script fails we want build to proceed.
- # Failure likely means some corner case we did not consider or bug.
- # Either case this should not prevent CI from running if it is needed,
- # and we tolerate it if it is run where it is not required.
- traceback.print_exc()
- print('There is a BUG in skip_ci.py, exiting.')
- sys.exit()
- if __name__ == '__main__':
- main()
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