Add input content checking to some build scripts

build/android/javac.py

-#!/usr/bin/env python
-#
-# Copyright 2013 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.
-
-import fnmatch
-import optparse
-import os
-import sys
-
-from pylib import build_utils
-
-def DoJavac(options):
-  output_dir = options.output_dir
-
-  src_dirs = build_utils.ParseGypList(options.src_dirs)
-  java_files = build_utils.FindInDirectories(src_dirs, '*.java')
-  if options.javac_includes:
-    javac_includes = build_utils.ParseGypList(options.javac_includes)
-    filtered_java_files = []
-    for f in java_files:
-      for include in javac_includes:
-        if fnmatch.fnmatch(f, include):
-          filtered_java_files.append(f)
-          break
-    java_files = filtered_java_files
-
-  # Compiling guava with certain orderings of input files causes a compiler
-  # crash... Sorted order works, so use that.
-  # See https://code.google.com/p/guava-libraries/issues/detail?id=950
-  java_files.sort()
-
-  classpath = build_utils.ParseGypList(options.classpath)
-
-  # Delete the classes directory. This ensures that all .class files in the
-  # output are actually from the input .java files. For example, if a .java
-  # file is deleted or an inner class is removed, the classes directory should
-  # not contain the corresponding old .class file after running this action.
-  build_utils.DeleteDirectory(output_dir)
-  build_utils.MakeDirectory(output_dir)
-
-  cmd = [
-      'javac',
-      '-g',
-      '-source', '1.5',
-      '-target', '1.5',
-      '-classpath', ':'.join(classpath),
-      '-d', output_dir]
-
-  # Only output Java warnings for chromium code
-  if options.chromium_code:
-    cmd += ['-Xlint:unchecked']
-  else:
-    cmd += [# Suppress "Sun proprietary API" warnings. See: goo.gl/OYxUM
-            '-XDignore.symbol.file']
-
-  build_utils.CheckCallDie(cmd + java_files)
-
-def main(argv):
-  parser = optparse.OptionParser()
-  parser.add_option('--src-dirs', help='Directories containing java files.')
-  parser.add_option('--javac-includes',
-      help='A list of file patterns. If provided, only java files that match' +
-        'one of the patterns will be compiled.')
-  parser.add_option('--classpath', help='Classpath for javac.')
-  parser.add_option('--output-dir', help='Directory for javac output.')
-  parser.add_option('--stamp', help='Path to touch on success.')
-  parser.add_option('--chromium-code', type='int', help='Whether code being '
-                    'compiled should be built with stricter warnings for '
-                    'chromium code.')
-
-  # TODO(newt): remove this once http://crbug.com/177552 is fixed in ninja.
-  parser.add_option('--ignore', help='Ignored.')
-
-  options, _ = parser.parse_args()
-
-  DoJavac(options)
-
-  if options.stamp:
-    build_utils.Touch(options.stamp)
-
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))
-
-