tools/internal_ci/helper_scripts/prepare_build_macos_rc

#!/bin/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.

# Source this rc script to prepare the environment for macos builds

sudo launchctl limit maxfiles unlimited unlimited

# show current maxfiles
launchctl limit maxfiles

ulimit -n 10000

# show current limits
ulimit -a

# synchronize the clock
date
sudo systemsetup -setusingnetworktime off
sudo systemsetup -setnetworktimeserver "$( ipconfig getoption en0 server_identifier )"
sudo systemsetup -settimezone America/Los_Angeles
sudo systemsetup -setusingnetworktime on
date

# Add GCP credentials for BQ access
# pin google-api-python-client to avoid https://github.com/grpc/grpc/issues/15600
pip install google-api-python-client==1.6.7 --user python
export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_GFILE_DIR}/GrpcTesting-d0eeee2db331.json

# If this is a PR using RUN_TESTS_FLAGS var, then add flags to filter tests
if [ -n "$KOKORO_GITHUB_PULL_REQUEST_NUMBER" ]; then
  set +x
  brew update
  brew install jq
  ghprbTargetBranch=$(curl -s https://api.github.com/repos/grpc/grpc/pulls/$KOKORO_GITHUB_PULL_REQUEST_NUMBER | jq -r .base.ref)
  export RUN_TESTS_FLAGS="$RUN_TESTS_FLAGS --filter_pr_tests --base_branch origin/$ghprbTargetBranch"

  # TODO(matt-kwong): rename this to GITHUB_OAUTH_TOKEN after Jenkins deprecation
  export JENKINS_OAUTH_TOKEN=$(cat ${KOKORO_GFILE_DIR}/oauth_token.txt)
  export ghprbPullId=$KOKORO_GITHUB_PULL_REQUEST_NUMBER
  set -x
fi

set +ex  # rvm script is very verbose and exits with errorcode
source $HOME/.rvm/scripts/rvm
set -e  # rvm commands are very verbose
time rvm install 2.5.0
rvm use 2.5.0 --default
gem install bundler --no-ri --no-doc
gem install cocoapods --version 1.3.1 --no-ri --no-doc
gem install rake-compiler --no-ri --no-doc
rvm osx-ssl-certs status all
rvm osx-ssl-certs update all
set -ex

# cocoapods
export LANG=en_US.UTF-8
pod repo update  # needed by python

# python
pip install virtualenv --user python
pip install -U Mako six tox setuptools twisted pyyaml --user python
export PYTHONPATH=/Library/Python/3.4/site-packages

# Install Python 3.7
curl -O https://www.python.org/ftp/python/3.7.0/python-3.7.0-macosx10.9.pkg
sudo installer -pkg ./python-3.7.0-macosx10.9.pkg -target /

# set xcode version for Obj-C tests
sudo xcode-select -switch /Applications/Xcode_9.2.app/Contents/Developer/

# Disable some unwanted dotnet options
export NUGET_XMLDOC_MODE=skip
export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=true
export DOTNET_CLI_TELEMETRY_OPTOUT=true

# TODO(jtattermusch): better debugging of clock skew, remove once not needed
date

git submodule update --init

# Store intermediate build files of ObjC tests into /tmpfs
mkdir /tmpfs/Build-ios-binary-size
ln -s /tmpfs/Build-ios-binary-size src/objective-c/examples/Sample/Build
mkdir /tmpfs/DerivedData
rm -rf ~/Library/Developer/Xcode/DerivedData
ln -s /tmpfs/DerivedData ~/Library/Developer/Xcode/DerivedData