From ef7121dfb3e8a01b057ee099a4a2deb4a55a153e Mon Sep 17 00:00:00 2001
From: Corey Johnson & Nathan Sobo <cj+nathan@github.com>
Date: Mon, 2 Jul 2012 17:47:54 -0700
Subject: [PATCH] File does not trigger 'contents-change' when its md5 does not
 change

---
 src/app/file.coffee | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/app/file.coffee b/src/app/file.coffee
index b025bfc7d..c19c54a22 100644
--- a/src/app/file.coffee
+++ b/src/app/file.coffee
@@ -5,7 +5,11 @@ _ = require 'underscore'
 
 module.exports =
 class File
+  path: null
+  md5: null
+
   constructor: (@path) ->
+    @updateMd5()
 
   getPath: ->
     @path
@@ -13,6 +17,9 @@ class File
   getName: ->
     fs.base(@path)
 
+  updateMd5: ->
+    @md5 = fs.md5ForPath(@path)
+
   afterSubscribe: ->
     @subscribeToNativeChangeEvents() if @subscriptionCount() == 1
 
@@ -21,7 +28,10 @@ class File
 
   subscribeToNativeChangeEvents: ->
     @watchId = $native.watchPath @path, (eventTypes) =>
-      @trigger 'contents-change' if eventTypes.modified?
+      newMd5 = fs.md5ForPath(@getPath())
+      if eventTypes.modified? and newMd5 != @md5
+        @md5 = newMd5
+        @trigger 'contents-change'
 
   unsubscribeFromNativeChangeEvents: ->
     $native.unwatchPath(@path, @watchId)