Implement "copy_bundle_data" tool without using a python script.

build/toolchain/mac/copy_bundle_data.py

-# Copyright 2016 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 argparse
-import errno
-import os
-import shutil
-import subprocess
-import sys
-
-# Copies a macOS or iOS resource into a bundle. Special handling is given to
-# .strings files.
-#
-# Usage: python copy_bundle_data.py path/to/source path/of/destination
-#
-# Note that if |source| is a directory, its contents will be copied to |dest|,
-# rather than copying the |source| directory itself. Example:
-#   copy_bundle_data.py out/Release/Foo.framework out/Release/App/Foo.framework
-# The contents of Foo.framwork will be copied into the destination path, which
-# includes the name of the destination framework, which is also Foo.framework.
-
-def DetectEncoding(data, default_encoding='UTF-8'):
-  """Detects the encoding used by |data| from the Byte-Order-Mark if present.
-
-  Args:
-    data: string whose encoding needs to be detected
-    default_encoding: encoding returned if no BOM is found.
-
-  Returns:
-    The encoding determined from the BOM if present or |default_encoding| if
-    no BOM was found.
-  """
-  if data.startswith('\xFE\xFF'):
-    return 'UTF-16BE'
-
-  if data.startswith('\xFF\xFE'):
-    return 'UTF-16LE'
-
-  if data.startswith('\xEF\xBB\xBF'):
-    return 'UTF-8'
-
-  return default_encoding
-
-
-def CopyStringsFile(source, dest, strings_format):
-  """Copies a .strings file from |source| to |dest| and convert it to UTF-16.
-
-  Args:
-    source: string, path to the source file
-    dest: string, path to the destination file
-  """
-  with open(source, 'rb') as source_file:
-    data = source_file.read()
-
-  # Xcode's CpyCopyStringsFile / builtin-copyStrings seems to call
-  # CFPropertyListCreateFromXMLData() behind the scenes; at least it prints
-  #     CFPropertyListCreateFromXMLData(): Old-style plist parser: missing
-  #     semicolon in dictionary.
-  # on invalid files. Do the same kind of validation.
-  import CoreFoundation as CF
-  cfdata = CF.CFDataCreate(None, data, len(data))
-  plist, error = CF.CFPropertyListCreateFromXMLData(None, cfdata, 0, None)
-  if error:
-    raise ValueError(error)
-
-  if strings_format == 'legacy':
-    encoding = DetectEncoding(data)
-    with open(dest, 'wb') as dest_file:
-      dest_file.write(data.decode(encoding).encode('UTF-16'))
-  else:
-    cfformat = {
-      'xml1': CF.kCFPropertyListXMLFormat_v1_0,
-      'binary1': CF.kCFPropertyListBinaryFormat_v1_0,
-    }[strings_format]
-    cfdata, error = CF.CFPropertyListCreateData(
-        None, plist, CF.kCFPropertyListBinaryFormat_v1_0,
-        0, None)
-    if error:
-      raise ValueError(error)
-
-    data = CF.CFDataGetBytes(
-        cfdata, CF.CFRangeMake(0, CF.CFDataGetLength(cfdata)), None)
-    with open(dest, 'wb') as dest_file:
-      dest_file.write(data)
-
-
-def CopyFile(source, dest, strings_format):
-  """Copies a file or directory from |source| to |dest|.
-
-  Args:
-    source: string, path to the source file
-    dest: string, path to the destination file
-  """
-  try:
-    shutil.rmtree(dest)
-  except OSError as e:
-    if e.errno == errno.ENOENT:
-      pass
-    elif e.errno == errno.ENOTDIR:
-      os.unlink(dest)
-    else:
-      raise
-
-  _, extension = os.path.splitext(source)
-  if extension == '.strings':
-    CopyStringsFile(source, dest, strings_format)
-    return
-
-  # If the source is a directory, add a trailing slash so its contents get
-  # copied, rather than copying the directory itself.
-  if os.path.isdir(source) and not source.endswith('/'):
-    source += '/'
-
-  subprocess.check_call(
-      ['rsync', '--recursive', '--perms', '--links', source, dest])
-
-
-def Main():
-  parser = argparse.ArgumentParser(
-      description='copy source to destination for the creation of a bundle')
-  parser.add_argument('--strings-format',
-      choices=('xml1', 'binary1', 'legacy'), default='legacy',
-      help='convert .strings file to format (default: %(default)s)')
-  parser.add_argument('source', help='path to source file or directory')
-  parser.add_argument('dest', help='path to destination')
-  args = parser.parse_args()
-
-  CopyFile(args.source, args.dest, args.strings_format)
-
-if __name__ == '__main__':
-  sys.exit(Main())