webrtc/build/ios/export_headers

#!/usr/bin/python

#  Copyright 2016 The WebRTC project authors. All Rights Reserved.
#
#  Use of this source code is governed by a BSD-style license
#  that can be found in the LICENSE file in the root of the source
#  tree. An additional intellectual property rights grant can be found
#  in the file PATENTS.  All contributing project authors may
#  be found in the AUTHORS file in the root of the source tree.

"""Script for exporting iOS header files."""

import errno
import optparse
import os
import re
import shutil
import sys

LEGACY_HEADER_DIRS = ['talk/app/webrtc/objc/public', 'webrtc/base/objc/']
HEADER_DIRS = ['webrtc/api/objc/', 'webrtc/base/objc/',
               'webrtc/modules/audio_device/ios/objc']
# Individual header files that should also be exported.
LEGACY_HEADER_INCLUDES = []
HEADER_INCLUDES = []
# Individual header files that should not be exported.
LEGACY_HEADER_EXCLUDES = ['talk/app/webrtc/objc/public/RTCNSGLVideoView.h']
HEADER_EXCLUDES = [
  'webrtc/api/objc/avfoundationvideocapturer.h',
  'webrtc/api/objc/RTCNSGLVideoView.h',
  'webrtc/base/objc/NSString+StdString.h',
  'webrtc/base/objc/RTCUIApplication.h',
  'webrtc/modules/audio_device/ios/objc/RTCAudioSessionDelegateAdapter.h',
]

def ExportHeaders(include_base_dir, use_legacy_headers):
  """Exports iOS header files.

  Creates an include directory and recreates the hierarchy for the header files
  within the include directory.

  Args:
    include_base_dir: directory where the include directory should be created
  """

  include_dir_name = 'include'
  include_path = os.path.join(include_base_dir, include_dir_name)
  # Remove existing directory first in case files change.
  if (os.path.exists(include_path)):
    shutil.rmtree(include_path)

  script_path = sys.path[0]
  webrtc_base_path = os.path.join(script_path, '../../..')

  header_dirs = HEADER_DIRS
  include_headers = HEADER_INCLUDES
  exclude_headers = HEADER_EXCLUDES
  if use_legacy_headers:
    header_dirs = LEGACY_HEADER_DIRS
    include_headers = LEGACY_HEADER_INCLUDES
    exclude_headers = LEGACY_HEADER_EXCLUDES

  for directory in header_dirs:
    full_dir_path = os.path.join(webrtc_base_path, directory)
    filenames = os.listdir(full_dir_path)
    for filename in filenames:
      if filename.endswith('.h') and not filename.endswith('+Private.h'):
        include_headers.append(os.path.join(directory, filename))

  for header in exclude_headers:
    include_headers.remove(header)

  for header_path in include_headers:
    output_dir = os.path.join(include_path, os.path.dirname(header_path))
    # Create hierarchy for the header file within the include directory.
    try:
      os.makedirs(output_dir)
    except OSError as exc:
      if exc.errno != errno.EEXIST:
        raise exc
    current_path = os.path.join(webrtc_base_path, header_path)
    new_path = os.path.join(include_path, header_path)
    shutil.copy(current_path, new_path)

def Main():
  parser = optparse.OptionParser()
  _, args = parser.parse_args()
  if len(args) != 2:
    parser.error('Error: Exactly 2 arguments required.')
  include_base_dir = args[0]
  use_legacy_headers = False if int(args[1]) == 0 else True
  ExportHeaders(include_base_dir, use_legacy_headers)

if __name__ == '__main__':
  sys.exit(Main())