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

build/android/gyp/emma_instr.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.
-
-"""Instruments classes and jar files.
-
-This script corresponds to the 'emma_instr' action in the java build process.
-Depending on whether emma_instrument is set, the 'emma_instr' action will either
-call one of the instrument commands, or the copy command.
-
-Possible commands are:
-- instrument_jar: Accepts a jar and instruments it using emma.jar.
-- instrument_classes: Accepts a directory containing java classes and
-      instruments it using emma.jar.
-- copy: Called when EMMA coverage is not enabled. This allows us to make
-      this a required step without necessarily instrumenting on every build.
-      Also removes any stale coverage files.
-"""
-
-import collections
-import json
-import os
-import shutil
-import sys
-import tempfile
-
-sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir))
-from pylib.utils import command_option_parser
-
-from util import build_utils
-
-
-def _AddCommonOptions(option_parser):
-  """Adds common options to |option_parser|."""
-  option_parser.add_option('--input-path',
-                           help=('Path to input file(s). Either the classes '
-                                 'directory, or the path to a jar.'))
-  option_parser.add_option('--output-path',
-                           help=('Path to output final file(s) to. Either the '
-                                 'final classes directory, or the directory in '
-                                 'which to place the instrumented/copied jar.'))
-  option_parser.add_option('--stamp', help='Path to touch when done.')
-  option_parser.add_option('--coverage-file',
-                           help='File to create with coverage metadata.')
-  option_parser.add_option('--sources-file',
-                           help='File to create with the list of sources.')
-
-
-def _AddInstrumentOptions(option_parser):
-  """Adds options related to instrumentation to |option_parser|."""
-  _AddCommonOptions(option_parser)
-  option_parser.add_option('--sources',
-                           help='Space separated list of sources.')
-  option_parser.add_option('--src-root',
-                           help='Root of the src repository.')
-  option_parser.add_option('--emma-jar',
-                           help='Path to emma.jar.')
-  option_parser.add_option(
-      '--filter-string', default='',
-      help=('Filter string consisting of a list of inclusion/exclusion '
-            'patterns separated with whitespace and/or comma.'))
-
-
-def _RunCopyCommand(_command, options, _, option_parser):
-  """Copies the jar from input to output locations.
-
-  Also removes any old coverage/sources file.
-
-  Args:
-    command: String indicating the command that was received to trigger
-        this function.
-    options: optparse options dictionary.
-    args: List of extra args from optparse.
-    option_parser: optparse.OptionParser object.
-
-  Returns:
-    An exit code.
-  """
-  if not (options.input_path and options.output_path and
-          options.coverage_file and options.sources_file):
-    option_parser.error('All arguments are required.')
-
-  coverage_file = os.path.join(os.path.dirname(options.output_path),
-                               options.coverage_file)
-  sources_file = os.path.join(os.path.dirname(options.output_path),
-                              options.sources_file)
-  if os.path.exists(coverage_file):
-    os.remove(coverage_file)
-  if os.path.exists(sources_file):
-    os.remove(sources_file)
-
-  if os.path.isdir(options.input_path):
-    shutil.rmtree(options.output_path, ignore_errors=True)
-    shutil.copytree(options.input_path, options.output_path)
-  else:
-    shutil.copy(options.input_path, options.output_path)
-
-  if options.stamp:
-    build_utils.Touch(options.stamp)
-
-
-def _CreateSourcesFile(sources_string, sources_file, src_root):
-  """Adds all normalized source directories to |sources_file|.
-
-  Args:
-    sources_string: String generated from gyp containing the list of sources.
-    sources_file: File into which to write the JSON list of sources.
-    src_root: Root which sources added to the file should be relative to.
-
-  Returns:
-    An exit code.
-  """
-  src_root = os.path.abspath(src_root)
-  sources = build_utils.ParseGypList(sources_string)
-  relative_sources = []
-  for s in sources:
-    abs_source = os.path.abspath(s)
-    if abs_source[:len(src_root)] != src_root:
-      print ('Error: found source directory not under repository root: %s %s'
-             % (abs_source, src_root))
-      return 1
-    rel_source = os.path.relpath(abs_source, src_root)
-
-    relative_sources.append(rel_source)
-
-  with open(sources_file, 'w') as f:
-    json.dump(relative_sources, f)
-
-
-def _RunInstrumentCommand(command, options, _, option_parser):
-  """Instruments the classes/jar files using EMMA.
-
-  Args:
-    command: 'instrument_jar' or 'instrument_classes'. This distinguishes
-        whether we copy the output from the created lib/ directory, or classes/
-        directory.
-    options: optparse options dictionary.
-    args: List of extra args from optparse.
-    option_parser: optparse.OptionParser object.
-
-  Returns:
-    An exit code.
-  """
-  if not (options.input_path and options.output_path and
-          options.coverage_file and options.sources_file and options.sources and
-          options.src_root and options.emma_jar):
-    option_parser.error('All arguments are required.')
-
-  coverage_file = os.path.join(os.path.dirname(options.output_path),
-                               options.coverage_file)
-  sources_file = os.path.join(os.path.dirname(options.output_path),
-                              options.sources_file)
-  if os.path.exists(coverage_file):
-    os.remove(coverage_file)
-  temp_dir = tempfile.mkdtemp()
-  try:
-    cmd = ['java', '-cp', options.emma_jar,
-           'emma', 'instr',
-           '-ip', options.input_path,
-           '-ix', options.filter_string,
-           '-d', temp_dir,
-           '-out', coverage_file,
-           '-m', 'fullcopy']
-    build_utils.CheckOutput(cmd)
-
-    if command == 'instrument_jar':
-      for jar in os.listdir(os.path.join(temp_dir, 'lib')):
-        shutil.copy(os.path.join(temp_dir, 'lib', jar),
-                    options.output_path)
-    else:  # 'instrument_classes'
-      if os.path.isdir(options.output_path):
-        shutil.rmtree(options.output_path, ignore_errors=True)
-      shutil.copytree(os.path.join(temp_dir, 'classes'),
-                      options.output_path)
-  finally:
-    shutil.rmtree(temp_dir)
-
-  _CreateSourcesFile(options.sources, sources_file, options.src_root)
-
-  if options.stamp:
-    build_utils.Touch(options.stamp)
-
-  return 0
-
-
-CommandFunctionTuple = collections.namedtuple(
-    'CommandFunctionTuple', ['add_options_func', 'run_command_func'])
-VALID_COMMANDS = {
-    'copy': CommandFunctionTuple(_AddCommonOptions,
-                                 _RunCopyCommand),
-    'instrument_jar': CommandFunctionTuple(_AddInstrumentOptions,
-                                           _RunInstrumentCommand),
-    'instrument_classes': CommandFunctionTuple(_AddInstrumentOptions,
-                                               _RunInstrumentCommand),
-}
-
-
-def main():
-  option_parser = command_option_parser.CommandOptionParser(
-      commands_dict=VALID_COMMANDS)
-  command_option_parser.ParseAndExecute(option_parser)
-
-
-if __name__ == '__main__':
-  sys.exit(main())