SDK build bits for dartfmt.

utils/dartfmt/dartfmt.gyp

Index: utils/dartfmt/dartfmt.gyp
===================================================================
--- utils/dartfmt/dartfmt.gyp	(revision 0)
+++ utils/dartfmt/dartfmt.gyp	(revision 0)
@@ -0,0 +1,36 @@
+# Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+{
+  'targets': [
+    {
+      'target_name': 'dartfmt',
+      'type': 'none',
+      'dependencies': [
+        '../../runtime/dart-runtime.gyp:dart',
+        '../../pkg/pkg.gyp:pkg_packages',
+      ],
+      'actions': [
+        {
+          'action_name': 'generate_dartfmt_snapshot',
+          'inputs': [
+            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)dart<(EXECUTABLE_SUFFIX)',
+            '../../sdk/lib/_internal/libraries.dart',
+            '<(SHARED_INTERMEDIATE_DIR)/packages.stamp',
+            '<!@(["python", "../../tools/list_files.py", "\\.dart$", "../../pkg/analyzer"])',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/dartfmt.dart.snapshot',
+          ],
+          'action': [
+            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)dart<(EXECUTABLE_SUFFIX)',
+            '--snapshot=<(SHARED_INTERMEDIATE_DIR)/dartfmt.dart.snapshot',
+            '--package-root=<(PRODUCT_DIR)/packages/',
+            '../../pkg/analyzer/bin/formatter.dart',
+          ],
+        },
+      ],
+    },
+  ],
+}