#!/usr/bin/env bash
# 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 script is invoked by a pull request job and executes all
# args passed to this script if the pull request affect C/C++ code
set -ex

# Enter the gRPC repo root
cd $(dirname $0)/../../..

# TODO(jtattermusch): the "ghprbTargetBranch" is Jenkins specific and probably
# does not work on kokoro?
AFFECTS_C_CPP=`python -c 'import os; \
               import sys; \
               sys.path.insert(0, "tools/run_tests/python_utils"); \
               import filter_pull_request_tests as filter; \
               github_target_branch = os.environ.get("ghprbTargetBranch"); \
               print(filter.affects_c_cpp("origin/%s" % github_target_branch))'`

if [ $AFFECTS_C_CPP == "False" ] ; then
  echo "This pull request does not affect C/C++. Tests do not need to be run."
else
  $@
fi
