#!/usr/bin/env bash
set -euo pipefail

usage() {
  cat <<'EOF'
Usage:
  run-atvm-runner.sh <build-name>

This script is intended to be launched by systemd for one ATVM run.
It expects environment variables from the runner unit/environment files:
  ATVM_RUNNER_COMMAND
  ATVM_RUNNER_WORKDIR
  ATVM_RUNNER_LOG
EOF
}

BUILD_NAME="${1:-}"
if [[ -z "$BUILD_NAME" ]]; then
  echo "build name is required" >&2
  usage >&2
  exit 1
fi

RUNNER_COMMAND="${ATVM_RUNNER_COMMAND:-}"
RUNNER_WORKDIR="${ATVM_RUNNER_WORKDIR:-/root/cdc-e2e-cyp-12.17.4}"
RUNNER_LOG="${ATVM_RUNNER_LOG:-/tmp/${BUILD_NAME}.log}"

if [[ -z "$RUNNER_COMMAND" ]]; then
  echo "ATVM_RUNNER_COMMAND is required" >&2
  exit 1
fi

mkdir -p "$(dirname "$RUNNER_LOG")"
: > "$RUNNER_LOG"

cd "$RUNNER_WORKDIR"
exec bash -lc "$RUNNER_COMMAND" >>"$RUNNER_LOG" 2>&1