utils/ci/macos-ci-setup

#!/usr/bin/env bash

# This simple script can be used to set up a CI node running MacOS.
# An additional requirement that is *not* handled by this script is the
# installation of Xcode, which requires manual intervention.
#
# This script should be run from an administrator account. It can be run
# without having to clone the LLVM repository with:
#
#   $ /bin/bash -c "$(curl -fsSl https://raw.githubusercontent.com/llvm/llvm-project/main/libcxx/utils/ci/macos-ci-setup)"
#
# Once the necessary dependencies have been installed, you can switch
# to a non-administrator account and run:
#
#   $ caffeinate -s buildkite-agent start --build-path /tmp/buildkite-builds

set -e

if [[ -z "${BUILDKITE_AGENT_TOKEN}" ]]; then
  echo "The BUILDKITE_AGENT_TOKEN environment variable must be set to a BuildKite Agent token when calling this script."
  exit 1
fi

# Install Homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

# Install the required tools to run CI
brew install sphinx-doc python3 ninja cmake clang-format buildkite/buildkite/buildkite-agent

CFG_DIR="$(brew --prefix)/etc/buildkite-agent"

version="$(sw_vers -productVersion | sed -E 's/([0-9]+).([0-9]+).[0-9]+/\1.\2/')"
arch="$(uname -m)"

# Setup the tags of the agent
echo "tags=\"queue=libcxx-builders,arch=${arch},os=macos,os=macos${version}\"" >> "${CFG_DIR}/buildkite-agent.cfg"

# Setup the BuildKite Agent token
sed -i '' "s/xxx/${BUILDKITE_AGENT_TOKEN}/g" "${CFG_DIR}/buildkite-agent.cfg"