#!/bin/bash

# Copyright 2022 The IREE Authors
#
# Licensed under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

# Installs and sets up the GitHub actions runner, creating services to start and
# tear down the runner.

set -xeEuo pipefail

SCRIPT_DIR="$(dirname -- "$( readlink -f -- "$0"; )")";
source "${SCRIPT_DIR}/functions.sh"

mkdir /runner-root
cp -r "${SCRIPT_DIR}" /runner-root/config
chown -R runner:runner /runner-root/

echo "Fetching the runner archive"
RUNNER_VERSION="$(get_attribute github-runner-version)"
RUNNER_ARCHIVE_URL="$(get_attribute github-runner-archive-url)"
RUNNER_ARCHIVE_DIGEST="$(get_attribute github-runner-archive-digest)"
RUNNER_ARCHIVE="actions-runner.tar.gz"

cd /runner-root
mkdir actions-runner
cd actions-runner
nice_curl "${RUNNER_ARCHIVE_URL}" -o "${RUNNER_ARCHIVE}"

echo "${RUNNER_ARCHIVE_DIGEST} *${RUNNER_ARCHIVE}" | shasum -a 256 -c
tar xzf "${RUNNER_ARCHIVE}"
ln -s ../config/runner.env .env

echo "Registering the runner."
runuser --user runner /runner-root/config/register.sh

echo "Loading systemd services"
cp /runner-root/config/systemd/system/* /etc/systemd/system/
systemctl daemon-reload

echo "Enabling systemd services."
find /runner-root/config/systemd/system/ -type f -printf "%f\n" \
  | xargs systemctl enable

echo "Starting the runner services"
systemctl start runner-setup.target