Show Atom's version.

atom.gyp

@@ -1,4 +1,7 @@
 {
+  'variables': {
+    'version%': "<!(git rev-parse --short HEAD)",
+  },
   'includes': [
     'sources.gypi',
   ],
@@ -76,6 +79,22 @@
           ],
         },
       ],
+      'actions': [
+        {
+          'action_name': 'generate_version',
+          'inputs': [
+            'script/generate-version',
+          ],
+          'outputs': [
+            '<(PRODUCT_DIR)/Atom.app/Contents/Resources/version'
+          ],
+          'action': [
+            'script/generate-version',
+            '<(version)',
+            '<(PRODUCT_DIR)/Atom.app/Contents/Resources/version'
+          ]
+        },
+      ],
       'postbuilds': [
         {
           'postbuild_name': 'Copy Static Files',

script/generate-version

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+echo -n $1 > $2

src/app/atom.coffee

@@ -262,4 +262,4 @@ window.atom =
       console.error "Failed to load `#{userInitScriptPath}`", error.stack, error
 
   getVersion: ->
-    @sendMessageToBrowserProcess('getVersion')
+    ipc.sendChannelSync 'get-version'

src/main.coffee

@@ -13,6 +13,9 @@ testMode = false
 getHomeDir = ->
   process.env[if process.platform is 'win32' then 'USERPROFILE' else 'HOME']
 
+getVersion = ->
+  String fs.readFileSync(path.join(__dirname, '..', '..', 'version'))
+
 setupNodePath = ->
   resourcePaths = [
     'src/stdlib',
@@ -120,6 +123,7 @@ class AtomApplication
       label: 'Atom'
       submenu: [
         { label: 'About Atom', selector: 'orderFrontStandardAboutPanel:' }
+        { label: "Version #{getVersion()}", enabled: false }
         { type: 'separator' }
         { label: 'Preferences...', accelerator: 'Command+,', click: => @openConfig() }
         { type: 'separator' }
@@ -184,6 +188,9 @@ class AtomApplication
     ipc.on 'new-window', =>
       @open()
 
+    ipc.on 'get-version', (event) ->
+      event.result = getVersion()
+
   sendCommand: (command) ->
     atomWindow.sendCommand command for atomWindow in @windows when atomWindow.browserWindow.isFocused()