set -e in generator (exit when got an error)

PeterDaveHello · PeterDaveHello · commit 951891ec189e · 2015-09-21T00:18:42.000+08:00
diff --git a/generator.sh b/generator.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+set -e
 shopt -s expand_aliases
 
 distFolder=dist
