Create targets for dart2js files, pub files, pkg files.

utils/pub/pub.gyp

Index: utils/pub/pub.gyp
===================================================================
--- utils/pub/pub.gyp	(revision 35247)
+++ utils/pub/pub.gyp	(working copy)
@@ -10,16 +10,19 @@
       'dependencies': [
         '../../runtime/dart-runtime.gyp:dart',
         '../../pkg/pkg.gyp:pkg_packages',
+        '../../pkg/pkg.gyp:pkg_files_stamp',
+        '../../utils/compiler/compiler.gyp:dart2js_files_stamp',
+        'pub_files_stamp'
       ],
       'actions': [
         {
           'action_name': 'generate_pub_snapshot',
           'inputs': [
             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)dart<(EXECUTABLE_SUFFIX)',
-            '<!@(["python", "../../tools/list_files.py", "\\.dart$", "../../sdk/lib/_internal/pub"])',
             '../../sdk/lib/_internal/libraries.dart',
-            '<!@(["python", "../../tools/list_files.py", "\\.dart$", "../../sdk/lib/_internal/compiler"])',
-            '<!@(["python", "../../tools/list_files.py", "\\.dart$", "../../pkg"])',
+            '<(SHARED_INTERMEDIATE_DIR)/pub_files.stamp',
+            '<(SHARED_INTERMEDIATE_DIR)/dart2js_files.stamp',
+            '<(SHARED_INTERMEDIATE_DIR)/pgk_files.stamp',
           ],
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/pub.dart.snapshot',
@@ -33,5 +36,32 @@
         },
       ],
     },
+    # Other targets depend on pub files, but have to many inputs, which causes
+    # issues on some platforms.
+    # This target lists all the files in sdk/lib/_internal/pub,
+    # and creates a single pub_files.stamp
+    {
+      'target_name': 'pub_files_stamp',
+      'type': 'none',
+      'actions': [
+        {
+          'action_name': 'make_pub_files_stamp',
+          'inputs': [
+            '../../tools/create_timestamp_file.py',
+            '<!@(["python", "../../tools/list_files.py", "\\.dart$",'
+                ' "../../sdk/lib/_internal/pub"])',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/pub_files.stamp',
+          ],
+          'action': [
+            'python', '../../tools/create_timestamp_file.py',
+            '<@(_outputs)',
+          ],
+        },
+      ],
+    }
+
+
   ],
 }