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#!/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 first be run from an administrator account to install
# the dependencies necessary for running CI. 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 the script again, passing the
# --setup-launchd argument. That will install a Launchd agent to run the
# BuildKite agent whenever the current user is logged in. You should enable
# automatic login for that user, so that if the CI node goes down, the user
# is logged back in automatically when the node goes up again, and the
# BuildKite agent starts automatically.
#
# Alternatively, you can simply run the BuildKite agent by hand using:
#
# $ caffeinate -s buildkite-agent start --build-path /tmp/buildkite-builds
set -e
# Install a Launchd agent that will automatically start the BuildKite agent at login
if [[ ${1} == "--setup-launchd" ]]; then
HOMEBREW_PREFIX="$(brew --prefix)"
mkdir -p ~/Library/LaunchAgents
cat <<EOF > ~/Library/LaunchAgents/libcxx.buildkite-agent.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>libcxx.buildkite-agent</string>
<key>ProgramArguments</key>
<array>
<string>${HOMEBREW_PREFIX}/bin/buildkite-agent</string>
<string>start</string>
<string>--build-path</string>
<string>${HOME}/libcxx.buildkite-agent/builds</string>
</array>
<key>EnvironmentVariables</key>
<dict>
<key>PATH</key>
<string>${HOMEBREW_PREFIX}/bin:/usr/bin:/bin:/usr/sbin:/sbin</string>
</dict>
<key>RunAtLoad</key>
<true/>
<key>KeepAlive</key>
<dict>
<key>SuccessfulExit</key>
<false/>
</dict>
<key>ProcessType</key>
<string>Interactive</string>
<key>ThrottleInterval</key>
<integer>30</integer>
<key>StandardOutPath</key>
<string>${HOME}/libcxx.buildkite-agent/stdout.log</string>
<key>StandardErrorPath</key>
<string>${HOME}/libcxx.buildkite-agent/stderr.log</string>
</dict>
</plist>
EOF
echo "Starting BuildKite agent"
launchctl load ~/Library/LaunchAgents/libcxx.buildkite-agent.plist
else
echo "Installing CI dependencies for macOS"
if [[ -z "${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 "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
HOMEBREW_PREFIX="$(brew --prefix)"
# Install the required tools to run CI
brew install sphinx-doc python3 ninja cmake clang-format buildkite/buildkite/buildkite-agent
# Setup BuildKite Agent config
version="$(sw_vers -productVersion | sed -E 's/([0-9]+).([0-9]+).[0-9]+/\1.\2/')"
arch="$(uname -m)"
sed -i '' "s/token=xxx/token=${BUILDKITE_AGENT_TOKEN}/g" "${HOMEBREW_PREFIX}/etc/buildkite-agent/buildkite-agent.cfg"
echo "tags=\"queue=libcxx-builders,arch=${arch},os=macos,os=macos${version}\"" >> "${HOMEBREW_PREFIX}/etc/buildkite-agent/buildkite-agent.cfg"
fi
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