Fetch last change (revision) info in a separate action that can run...

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,
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 3659 matching lines @@
           'include_dirs': [
             'third_party/wtl/include',
           ],
           'dependencies': [
             # On Windows, link the dependencies (libraries) that make
             # up actual Chromium functionality into this .dll.
             '<@(chromium_dependencies)',
             'chrome_resources',
             'installer/installer.gyp:installer_util_strings',
             'worker',
+            '../build/util/build_util.gyp:lastchange',
             '../net/net.gyp:net_resources',
             '../views/views.gyp:views',
             '../webkit/webkit.gyp:webkit_resources',
             '../gears/gears.gyp:gears',
             'tcmalloc',
           ],
           'rules': [
             {
               'rule_name': 'win_version',
               'extension': 'version',
               'variables': {
-                'version_py': '../chrome/tools/build/version.py',
-                'VERSION': '../chrome/VERSION',
+                'lastchange_path':
+                  '<(SHARED_INTERMEDIATE_DIR)/build/LASTCHANGE',
+                'version_py': 'tools/build/version.py',
+                'version_path': 'VERSION',
                 'template_input_path': 'app/chrome_dll_version.rc.version',
-                'template_output_path':
-                '<(grit_out_dir)/chrome_dll_version.rc',
+                'template_output_path': '<(grit_out_dir)/chrome_dll_version.rc',
               },
               'conditions': [
                 [ 'branding == "Chrome"', {
                   'variables': {
-                     'BRANDING':
-                       '../chrome/app/theme/google_chrome/BRANDING',
+                     'branding_path': 'app/theme/google_chrome/BRANDING',
                   },
                 }, { # else branding!="Chrome"
                   'variables': {
-                     'BRANDING':
-                       '../chrome/app/theme/chromium/BRANDING',
+                     'branding_path': 'app/theme/chromium/BRANDING',
                   },
                 }],
               ],
               'inputs': [
                 '<(template_input_path)',
-                '<(VERSION)',
-                '<(BRANDING)',
+                '<(version_path)',
+                '<(branding_path)',
+                '<(lastchange_path)',
               ],
               'outputs': [
                 # Use a non-existant output so this action always runs and
                 # generates version information, e.g. to capture revision
                 # changes, which aren't captured by file dependencies.
-                '<(grit_out_dir)/chrome_dll_version.bogus',
+                '<(grit_out_dir)/chrome_dll_version.always',
 
                 # And this is the real output, so that the build system knows
                 # what action generates it.
                 '<(template_output_path)',
               ],
               'action': [
                 'python',
                 '<(version_py)',
-                '-f', '<(VERSION)',
-                '-f', '<(BRANDING)',
+                '-f', '<(version_path)',
+                '-f', '<(branding_path)',
+                '-f', '<(lastchange_path)',
                 '<(template_input_path)',
                 '<(template_output_path)',
               ],
               'process_outputs_as_sources': 1,
-              'message': 'Generating version information'
+              'message': 'Generating version information in <(template_output_path)'
             },
           ],
           'sources': [
             'app/chrome_dll.rc',
             'app/chrome_dll_main.cc',
             'app/chrome_dll_resource.h',
             'app/chrome_dll_version.rc.version',
 
             '../webkit/glue/resources/aliasb.cur',
             '../webkit/glue/resources/cell.cur',
@@ skipping 570 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'
 }