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#!/usr/bin/env python
# Copyright 2017 gRPC authors.
#
# 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.
"""This sends out a warning if any changes to the bazel dir are made."""
from __future__ import print_function
from subprocess import check_output
import comment_on_pr
import os
_WARNING_MESSAGE = 'WARNING: You are making changes in the Bazel subdirectory. ' \
'Please get explicit approval from @nicolasnoble before merging.'
def _get_changed_files(base_branch):
"""
Get list of changed files between current branch and base of target merge branch
"""
# Get file changes between branch and merge-base of specified branch
base_commit = check_output(["git", "merge-base", base_branch, "HEAD"]).rstrip()
return check_output(["git", "diff", base_commit, "--name-only"]).splitlines()
# ghprbTargetBranch environment variable only available during a Jenkins PR tests
if 'ghprbTargetBranch' in os.environ:
changed_files = _get_changed_files('origin/%s' % os.environ['ghprbTargetBranch'])
if any(file.startswith('bazel/') for file in changed_files):
comment_on_pr.comment_on_pr(_WARNING_MESSAGE)
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