#

# set +o errexit -o noglob -o nounset is assumed.

#

#

# Private globals and subroutines

#

RTLP_LOG_NO_ATTR=0;

RTLP_LOG_FNAME="";

RTLP_LOG_LVL="0";

rtl_log_set_fname() { RTLP_LOG_FNAME="${1}"; };

rtl_log_set_lvl() { RTLP_LOG_LVL="${1}"; };

rtl_log_set_no_attr() { RTLP_LOG_NO_ATTR="${1}"; };

rtlp_log_printf() {

	local _attr="${1}" _fmt="${2}"; shift 2; _msg="$(printf "${_fmt}" "${@}")";

	if [ -n "${RTLP_LOG_FNAME}" ]; then

		printf "%s\n" "${_msg}" >> "${RTLP_LOG_FNAME}";

	fi;

	if [ "${RTLP_LOG_NO_ATTR:-0}" -eq 0 ]; then

		printf "\033[0m\033[${_attr}m%s\033[0m\n" "${_msg}";

	else

		printf "%s\n" "${_msg}";

	fi;

};

#

# Public globals

#

RTL_LOG_MSG_FATAL_COLOUR=91;		# Bright red

RTL_LOG_MSG_WARNING_COLOUR=31;		# Dark red

RTL_LOG_MSG_SUCCESS_COLOUR=33;		# Dark yellow

RTL_LOG_MSG_SUCCESS_END_COLOUR=32;	# Dark green

RTL_LOG_MSG_INFO_COLOUR=93;		# Bright yellow

RTL_LOG_MSG_INFO_END_COLOUR=92;		# Bright green

RTL_LOG_MSG_NOTICE_COLOUR=96;		# Bright cyan

RTL_LOG_MSG_VERBOSE_COLOUR=90;		# Dark grey

RTL_LOG_MSG_DEBUG_COLOUR=36;		# Dark cyan

rtl_log_env_vars() {

	local _arg_len_max=0;

	rtl_log_msg info "Variables for this ${1:-build}:"; shift;

	_arg_len_max="$(rtl_lmax "${@}")";

	while [ "${#}" -gt 0 ]; do

		rtl_log_msg info				\

			"%${_arg_len_max}.${_arg_len_max}s=%s"	\

			"${1%%=*}" "$(rtl_get_var_unsafe "${1#*=}")";

		shift;

	done;

};

rtl_log_msg() {

	local _lvl="${1}" _fmt="${2}" _attr=""; shift 2;

	case "${RTLP_LOG_LVL:-0}" in

	0)	rtl_lmatch "notice verbose debug" "${_lvl}" && return; ;;

	1)	rtl_lmatch "verbose debug" "${_lvl}" && return; ;;

	2)	rtl_lmatch "debug" "${_lvl}" && return; ;;

	3)	;;

	esac;

	case "${_lvl}" in

	fatal|fatalexit)	_attr="${RTL_LOG_MSG_FATAL_COLOUR}"; ;;

	warning)		_attr="${RTL_LOG_MSG_WARNING_COLOUR}"; ;;

	success)		_attr="${RTL_LOG_MSG_SUCCESS_COLOUR}"; ;;

	success_end)		_attr="${RTL_LOG_MSG_SUCCESS_END_COLOUR}"; ;;

	info)			_attr="${RTL_LOG_MSG_INFO_COLOUR}"; ;;

	info_end)		_attr="${RTL_LOG_MSG_INFO_END_COLOUR}"; ;;

	notice)			_attr="${RTL_LOG_MSG_NOTICE_COLOUR}"; ;;

	verbose)		_attr="${RTL_LOG_MSG_VERBOSE_COLOUR}"; ;;

	debug)			_attr="${RTL_LOG_MSG_DEBUG_COLOUR}"; ;;

	esac;

	rtlp_log_printf "${_attr}" "==> %s ${_fmt}" "$(rtl_date)" "${@}";

	if [ "x${_lvl}" = "xfatalexit" ]; then

		exit 1;

	fi;

};

# vim:filetype=sh