Replace global.homeDir with app.getHomeDir()

src/atom-application.coffee

@@ -102,7 +102,7 @@ class AtomApplication
           label: 'Run Specs'
           accelerator: 'Command+MacCtrl+Alt+S'
           click: =>
-            @runSpecs(false, path.join(global.homeDir, 'github', 'atom'))
+            @runSpecs(false, path.join(app.getHomeDir(), 'github', 'atom'))
         }
         { type: 'separator' }
         { label: 'Quit', accelerator: 'Command+Q', click: -> app.quit() }

src/atom-window.coffee

@@ -1,4 +1,5 @@
 BrowserWindow = require 'browser-window'
+app = require 'app'
 dialog = require 'dialog'
 ipc = require 'ipc'
 path = require 'path'
@@ -38,7 +39,7 @@ class AtomWindow
       ''
     ]
 
-    paths.push path.join(global.homeDir, '.atom', 'packages')
+    paths.push path.join(app.getHomeDir(), '.atom', 'packages')
 
     paths = paths.map (relativeOrAbsolutePath) ->
       path.resolve resourcePath, relativeOrAbsolutePath

src/main.coffee

@@ -9,8 +9,6 @@ optimist = require 'optimist'
 nslog = require 'nslog'
 _ = require 'underscore'
 
-global.homeDir = app.getHomeDir()
-
 console.log = (args...) ->
   nslog(args.map((arg) -> JSON.stringify(arg)).join(" "))
 
@@ -84,7 +82,7 @@ parseCommandLine = ->
     dev = true
     resourcePath = args['resource-path']
   else if dev
-    resourcePath = path.join(global.homeDir, 'github', 'atom')
+    resourcePath = path.join(app.getHomeDir(), 'github', 'atom')
 
   try
     fs.statSync resourcePath