disk-usage.sh: use non-zero exit codes as needed

ctrueden · ctrueden · commit 941eda5fafcc · 2015-08-16T21:37:22.000-05:00
For each filesystem which is not within bounds of the threshold,
increment the exit code. That way, Jenkins builds using this script will
fail if any of the tested filesystems are not within required bounds.
diff --git a/disk-usage.sh b/disk-usage.sh
@@ -15,6 +15,7 @@ check() {
 }
 
 threshold=80
+code=0
 while test $# -gt 0
 do
 	case "$1" in
@@ -23,8 +24,10 @@ do
 		threshold="$1"
 		;;
 	*)
-		check "$1"
+		check "$1" || code=$((code+1))
 		;;
 	esac
 	shift
 done
+
+exit $code
