#!/usr/bin/env bash

SYSTEM=$(uname -s)

die() {
    echo >&2 "$@"
    exit 1
}

[[ -n "${DAEMON_PID}" ]] || die "\$DAEMON_PID is required and must be the path of the pid file"
[[ -n "${OUT_FILE}" ]] || die "\$OUT_FILE is required and must be the path of the resulting stdout"

# Simplified dudeist daemonizer. Don't care about lock files, separate
# stdout/stderr and fancy stuff. #YOLO

case "${SYSTEM,,}" in
    linux)
        daemonize -p "${DAEMON_PID}" -e "${OUT_FILE}" -o "${OUT_FILE}" "$@"
        ;;
    freebsd)
        daemon -p "${DAEMON_PID}" -o "${OUT_FILE}" "$@"
        ;;
    *)
        die "unsupported system: ${SYSTEM}"
        ;;
esac