Add hook to clobber header files generated by grit on Windows.

This workarounds build problem with IncrediBuild.

TEST=none
http://crbug.com/17706

Review URL: http://codereview.chromium.org/159803

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@22325 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 49 insertions, 0 deletions

diff --git a/build/win/clobber_generated_headers.py b/build/win/clobber_generated_headers.py
new file mode 100644
index 0000000..7b90b37
--- /dev/null
+++ b/build/win/clobber_generated_headers.py
@@ -0,0 +1,49 @@
+#!/usr/bin/python
+# 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.
+
+# This script helps workaround IncrediBuild problem on Windows.
+# See http://crbug.com/17706.
+
+import os
+import sys
+
+_SRC_PATH = os.path.join(os.path.dirname(__file__), '..', '..')
+
+sys.path.append(os.path.join(_SRC_PATH, 'tools', 'grit'))
+import grit.grd_reader
+
+# We need to apply the workaround only on Windows.
+if os.name != 'nt':
+  sys.exit(0)
+
+def total_split(path):
+  components = []
+  while path:
+    head, tail = os.path.split(path)
+    components.append(tail)
+    path = head
+  return list(reversed(components))
+
+for path in sys.argv[1:]:
+  path = os.path.join('src', path)
+  path_components = total_split(path)
+  root = grit.grd_reader.Parse(path)
+  output_files = [node.GetOutputFilename() for node in root.GetOutputFiles()]
+  output_headers = [file for file in output_files if file.endswith('.h')]
+  for build_type in ('Debug', 'Release'):
+    build_path = os.path.join(_SRC_PATH, 'chrome', build_type)
+
+    # We guess target file output based on path of the grd file (the first
+    # path component after 'src').
+    intermediate_path = os.path.join(build_path, 'obj',
+                                     'global_intermediate', path_components[1])
+
+    for header in output_headers:
+      full_path = os.path.join(intermediate_path, header)
+      try:
+        os.remove(full_path)
+        print 'Clobbered ' + full_path
+      except OSError:
+        print 'Could not remove ' + full_path + '. Continuing.'
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