sde-cleanup-linger: add -d/--dry-run mode

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

bin/sde-cleanup-linger

@@ -23,11 +23,36 @@
 
 . $SDEROOT/lib/libsde.in
 
-if [ $# -ne 0 ]; then
-	echo "Usage:	sde cleanup linger"
-	exit 1
+cleanup_usage() {
+	local progname="${0##*/}"
+	cat <<EOT
+Usage:	$progname [--dry-run]
+EOT
+}
+
+shortopts='d'
+longopts='dry-run'
+options=$( getopt -o "$shortopts" -l "$longopts" -- "$@" )
+
+if [ $? -ne 0 ]; then
+	cleanup_usage
+	exit -1
 fi
 
+# load new arguments list
+eval set -- "$options"
+
+dryrun=
+
+while [ $# -gt 0 ]; do
+	case "$1" in
+		--)		shift; break ;;
+		-d|--dry-run)
+			dryrun=yes ;;
+	esac
+	shift
+done
+
 cd "$SDEROOT"
 
 echo_info "Searching for lingering temp/backup files (this may take some time) ..."
@@ -44,7 +69,16 @@ files_warn="-name DEADJOE -o -name *-[xX]			\
 
 # Remove temp/backup files
 #
-( bin/find $sderootdirs target/. -type f \( $files_remove \) | xargs rm -vf ) &
+remove() {
+	if [ "x-d" = "x${1:-}" ]; then
+		shift
+		bin/find $sderootdirs target/. -type f \( "$@" \)
+	else
+		bin/find $sderootdirs target/. -type f \( "$@" \) -print0 | xargs -r0 rm -vf
+	fi
+}
+
+remove ${dry_run:+-d} $files_remove
 
 # Print warnings for 'lingering' files
 #