//tools/binary_size: Consolidate most tools into "supersize" command

tools/binary_size/helpers.py

-# Copyright 2017 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.
-
-"""Utility methods."""
-
-import atexit
-import distutils.spawn
-import logging
-import os
-import platform
-import resource
-import sys
-
-
-SRC_ROOT = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
-
-
-def AddCommonOptionsAndParseArgs(parser, argv, pypy_warn=True):
-  parser.add_argument('--no-pypy', action='store_true',
-                      help='Do not automatically switch to pypy when available')
-  parser.add_argument('-v',
-                      '--verbose',
-                      default=0,
-                      action='count',
-                      help='Verbose level (multiple times for more)')
-  args = parser.parse_args(argv[1:])
-
-  logging.basicConfig(level=logging.WARNING - args.verbose * 10,
-                      format='%(levelname).1s %(relativeCreated)6d %(message)s')
-
-  if not args.no_pypy and platform.python_implementation() == 'CPython':
-    # Switch to pypy if it's available.
-    pypy_path = distutils.spawn.find_executable('pypy')
-    if pypy_path:
-      logging.debug('Switching to pypy.')
-      os.execv(pypy_path, [pypy_path] + sys.argv)
-    # NOTE! Running with python: 6s. Running with pypy: 3s
-    if pypy_warn:
-      logging.warning(
-          'This script runs more than 2x faster if you install pypy.')
-
-  if logging.getLogger().isEnabledFor(logging.DEBUG):
-    atexit.register(_LogPeakRamUsage)
-  return args
-
-
-def _LogPeakRamUsage():
-  peak_ram_usage = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
-  peak_ram_usage += resource.getrusage(resource.RUSAGE_CHILDREN).ru_maxrss
-  logging.info('Peak RAM usage was %d MB.', peak_ram_usage / 1024)