[EDGENT-448] add a new ignore item to filter .DS_Store for mac os x
diff --git a/.gitignore b/.gitignore
index ee57946..61dd0ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,4 +37,7 @@
 .settings/
 
 # Emacs
-*~
\ No newline at end of file
+*~
+
+# Mac os x
+*.DS_Store
\ No newline at end of file