The findbugs_diff and lib.

build/android/findbugs_diff.py

+#!/usr/bin/env python
+#
+# Copyright (c) 2012 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.
+
+"""Runs findbugs, and returns an error code if there are new warnings.
+This runs findbugs with an additional flag to exclude known bugs.
+To update the list of known bugs, do this:
+
+   findbugs_diff.py --rebaseline
+
+Note that this is separate from findbugs_exclude.xml. The "exclude" file has
+false positives that we do not plan to fix. The "known bugs" file has real
+bugs that we *do* plan to fix (but haven't done so yet).
+
+Other options
+  --only-analyze used to only analyze the class you are interested.
+  --relase-build analyze the classes in out/Release directory.
+  --findbugs-args used to passin other findbugs's options.
+
+Run
+  $CHROM_SRC/third_party/findbugs/bin/findbugs -textui for details.
+
+"""
+
+import optparse
+import os
+import sys
+
+from pylib import findbugs
+
+
+def main(argv):
+  parser = findbugs.GetCommonParser()
+
+  options, _ = parser.parse_args()
+
+  chrome_src = os.getenv('CHROME_SRC')
+
+  if not options.base_dir:
+    options.base_dir = os.path.join(chrome_src, 'build', 'android',
+                                    'findbugs_filter')
+  if not options.only_analyze:
+    options.only_analyze = 'org.chromium.-'
+
+  return findbugs.Run(options)
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))