Add a simple dmg script to the mac build dir to build a dmg out of the app....

chrome/chrome.gyp

 # Copyright (c) 2009 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/common.gypi',
@@ skipping 2748 matching lines @@
           ],
           'sources': [
             'tools/perf/flush_cache/flush_cache.cc',
           ],
         },
       ],
     }],
     ['OS=="mac"',
       # On Mac only, add a project target called "package_app" that only
       # runs a shell script (package_chrome.sh).
+      # On Mac only, add a project target called "build_app_dmg" that only
+      # builds a DMG out of the App (eventually will completely replace
+      # "package_app").
       { 'targets': [
         {
           'target_name': 'package_app',
           # do NOT place this in the 'all' list; most won't want it.
           # In gyp, booleans are 0/1 not True/False.
           'suppress_wildcard': 1,
           'type': 'none',
           'dependencies': [
             'app',
             '../breakpad/breakpad.gyp:dump_syms',
             '../breakpad/breakpad.gyp:symupload',
           ],
           'actions': [
             {
               'inputs': [],
               'outputs': [],
               'action_name': 'package_chrome',
               'action': ['tools/mac/package_chrome.sh' ],
             },
           ],  # 'actions'
         },
+        {
+          'target_name': 'build_app_dmg',
+          # do NOT place this in the 'all' list; most won't want it.
+          # In gyp, booleans are 0/1 not True/False.
+          'suppress_wildcard': 1,
+          'type': 'none',
+          'dependencies': [
+            'app',
+          ],
+          'variables': {
+            'build_app_dmg_script': '<(DEPTH)/build/mac/build_app_dmg',

[Mark Mentovai, 2009/05/08 20:18:22]

The varname should end with _file or _path for proper rehoming.

+          },
+          'actions': [
+            {
+              'inputs': [
+                '<(build_app_dmg_script)',
+                '<(PRODUCT_DIR)/<(branding).app',
+              ],
+              'outputs': [
+                '<(PRODUCT_DIR)/<(branding).dmg',
+              ],
+              'action_name': 'build_app_dmg',
+              'action': ['<(build_app_dmg_script)', '<@(branding)'],
+            },
+          ],  # 'actions'
+        },
       ]
     }, { # else: OS != "mac"
       'targets': [
         {
           'target_name': 'perf_tests',
           'type': 'executable',
           'dependencies': [
             'browser',
             'common',
             'renderer',
@@ skipping 472 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }