Removes files from //build that we don't need

build/android/gyp/jar_toc.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.
-
-"""Creates a TOC file from a Java jar.
-
-The TOC file contains the non-package API of the jar. This includes all
-public/protected/package classes/functions/members and the values of static
-final variables (members with package access are kept because in some cases we
-have multiple libraries with the same package, particularly test+non-test). Some
-other information (major/minor javac version) is also included.
-
-This TOC file then can be used to determine if a dependent library should be
-rebuilt when this jar changes. I.e. any change to the jar that would require a
-rebuild, will have a corresponding change in the TOC file.
-"""
-
-import optparse
-import os
-import re
-import sys
-import zipfile
-
-from util import build_utils
-from util import md5_check
-
-
-def GetClassesInZipFile(zip_file):
-  classes = []
-  files = zip_file.namelist()
-  for f in files:
-    if f.endswith('.class'):
-      # f is of the form org/chromium/base/Class$Inner.class
-      classes.append(f.replace('/', '.')[:-6])
-  return classes
-
-
-def CallJavap(classpath, classes):
-  javap_cmd = [
-      'javap',
-      '-package',  # Show public/protected/package.
-      # -verbose is required to get constant values (which can be inlined in
-      # dependents).
-      '-verbose',
-      '-J-XX:NewSize=4m',
-      '-classpath', classpath
-      ] + classes
-  return build_utils.CheckOutput(javap_cmd)
-
-
-def ExtractToc(disassembled_classes):
-  # javap output is structured by indent (2-space) levels.
-  good_patterns = [
-      '^[^ ]', # This includes all class/function/member signatures.
-      '^  SourceFile:',
-      '^  minor version:',
-      '^  major version:',
-      '^  Constant value:',
-      ]
-  bad_patterns = [
-      '^const #', # Matches the constant pool (i.e. literals used in the class).
-    ]
-
-  def JavapFilter(line):
-    return (re.match('|'.join(good_patterns), line) and
-        not re.match('|'.join(bad_patterns), line))
-  toc = filter(JavapFilter, disassembled_classes.split('\n'))
-
-  return '\n'.join(toc)
-
-
-def UpdateToc(jar_path, toc_path):
-  classes = GetClassesInZipFile(zipfile.ZipFile(jar_path))
-  toc = []
-
-  limit = 1000 # Split into multiple calls to stay under command size limit
-  for i in xrange(0, len(classes), limit):
-    javap_output = CallJavap(classpath=jar_path, classes=classes[i:i+limit])
-    toc.append(ExtractToc(javap_output))
-
-  with open(toc_path, 'w') as tocfile:
-    tocfile.write(''.join(toc))
-
-
-def DoJarToc(options):
-  jar_path = options.jar_path
-  toc_path = options.toc_path
-  record_path = '%s.md5.stamp' % toc_path
-  md5_check.CallAndRecordIfStale(
-      lambda: UpdateToc(jar_path, toc_path),
-      record_path=record_path,
-      input_paths=[jar_path],
-      force=not os.path.exists(toc_path),
-      )
-  build_utils.Touch(toc_path, fail_if_missing=True)
-
-
-def main():
-  parser = optparse.OptionParser()
-  build_utils.AddDepfileOption(parser)
-
-  parser.add_option('--jar-path', help='Input .jar path.')
-  parser.add_option('--toc-path', help='Output .jar.TOC path.')
-  parser.add_option('--stamp', help='Path to touch on success.')
-
-  options, _ = parser.parse_args()
-
-  if options.depfile:
-    build_utils.WriteDepfile(
-        options.depfile,
-        build_utils.GetPythonDependencies())
-
-  DoJarToc(options)
-
-  if options.depfile:
-    build_utils.WriteDepfile(
-        options.depfile,
-        build_utils.GetPythonDependencies())
-
-  if options.stamp:
-    build_utils.Touch(options.stamp)
-
-
-if __name__ == '__main__':
-  sys.exit(main())