sde: make `sde` ensure usage of ./run.sh when available

Signed-off-by: Alejandro Mery <amery@geeks.cl>

bin/sde

@@ -39,6 +39,7 @@ readlink -f /bin/sh 2>&1 > /dev/null
 
 if [ "x-x" = "x${1:-}" ]; then
 	XTRACE=yes
+	PS4='+${BASH_SOURCE:+$BASH_SOURCE:}$LINENO> '
 	shift
 	set -x
 else
@@ -68,12 +69,39 @@ fi
 # switching to the right sde wrapper (SDEROOT specific)
 #
 if [ "$( readlink -f "$0" )" != "$SDEROOT/bin/sde" ]; then
-	if [ "$1" = "--loop" ]; then
+	if [ "--loop" = "${1:-}" ]; then
 		echo_abort 2 'loop detected, abort.'
+	fi
+
+	set -- ${XTRACE:+-x }--loop "$@"
+
+	if [ -x "$SDEROOT/run.sh" ]; then
+		exec "$SDEROOT/run.sh" sde --run-loop "$@"
 	else
-		exec "$SDEROOT/bin/sde" ${XTRACE:+-x }--loop "$@"
+		exec "$SDEROOT/bin/sde" "$@"
+	fi
+elif [ -x "$SDEROOT/run.sh" ]; then
+	if [ "yes" = "${SDE_VIA_RUN_SH:-}" ]; then
+		# good
+		while [ $# -gt 0 ]; do
+			case "$1" in
+			--run-loop|--loop)
+				;;
+			*)
+				break ;;
+			esac
+			shift
+		done
+	elif [ "--run-loop" = "${1:-}" ]; then
+		echo_abort 2 'loop detected, abort.'
+	else
+		if [ "--loop" = "${1:-}" ]; then
+			shift
+		fi
+
+		exec "$SDEROOT/run.sh" sde ${XTRACE:+-x }--run-loop "$@"
 	fi
-elif [ "$1" = "--loop" ]; then
+elif [ "--loop" = "${1:-}" ]; then
 	shift
 fi