sh/shell/log.sh

LOG_LEVEL_FATAL=0
LOG_LEVEL_ERROR=1
LOG_LEVEL_WARN=2
LOG_LEVEL_INFO=3
LOG_LEVEL_DEBUG=4
LOG_LEVEL_TRACE=5

LOG_LEVEL=${LOG_LEVEL_INFO}

log_debug() {
	if [ "${LOG_LEVEL}" -ge "${LOG_LEVEL_DEBUG}" ]; then
		echo "[DEBUG]" "${@}"
	fi
}

log_error() {
	if [ "${LOG_LEVEL}" -ge "${LOG_LEVEL_ERROR}" ]; then
		echo "[ERROR]" "${@}"
	fi
}

log_fatal() {
	if [ "${LOG_LEVEL}" -ge "${LOG_LEVEL_FATAL}" ]; then
		echo "[FATAL]" "${@}"
	fi
}

log_info() {
	if [ "${LOG_LEVEL}" -ge "${LOG_LEVEL_INFO}" ]; then
		echo "${@}"
	fi
}

log_trace() {
	if [ "${LOG_LEVEL}" -ge "${LOG_LEVEL_TRACE}" ]; then
		echo "[TRACE]" "${@}"
	fi
}

log_warn() {
	if [ "${LOG_LEVEL}" -ge "${LOG_LEVEL_WARN}" ]; then
		echo " [WARN]" "${@}"
	fi
}