#!/bin/ash

# Check whether a value should be considered true/on. Checks for
# 'on', 'yes', 'true', or 1, in either upper- or lowercase, but not
# mixed case.
is_on() {
	[ "$1" = "ON" ] || [ "$1" = "on" ] || [ "$1" = "YES" ] || [ "$1" = "yes" ] || [ "$1" = "true" ] || [ "$1" = "TRUE" ] || [ "$1" -ne 0 ] 2>/dev/null || return 1
	return 0
}

# Checks whether we're running bwLehrpool/OpenSLX in debug mode.
# Either $SLX_DEBUG is_on, or 'debug' is passed on KCL.
is_debug() {
	if [ -z "$SLX_PXE_SERVER_IP" ]; then
		if [ -s /opt/openslx/config ]; then
			. /opt/openslx/config
		elif [ -s /etc/openslx ]; then
			. /etc/openslx
		fi
	fi
	# Replace function for future calls as this is const
	if is_on "$SLX_DEBUG" || grep -qE '(^|[[:space:]]|\bslx\.)debug($|[[:space:]]|=)' "/proc/cmdline"; then
		is_debug() {
			return 0
		}
	else
		is_debug() {
			return 1
		}
	fi
	is_debug
}