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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.
from __future__ import print_function
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('This is not pull request: {} is not set'.format(is_pr_env))
sys.exit()
elif os.environ[is_pr_env] == 'false':
print('This is not pull request: {} is false'.format(is_pr_env))
sys.exit()
def get_base_branch(base_env):
if base_env not in os.environ:
print('Unable to determine base branch: {} is not set'.format(base_env))
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("Don't run CI for documentation-only changes, add '[skip ci]' to commit title.")
print('See http://mesonbuild.com/Contributing.html#skipping-integration-tests')
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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