From 9bf5cde91a9b1673dcfe22a41ca7df9c000f869b Mon Sep 17 00:00:00 2001
From: hjon <hjon@webrtc.org>
Date: Fri, 19 Feb 2016 17:15:49 -0800
Subject: [PATCH] Update build_ios_libs.sh script to build new Objective-C API
 and gather header files.

BUG=

Review URL: https://codereview.webrtc.org/1673503002

Cr-Commit-Position: refs/heads/master@{#11694}
---
 talk/build/build_ios_libs.sh  | 20 +++++++-
 talk/build/export_headers     | 86 +++++++++++++++++++++++++++++++++++
 talk/build/merge_ios_libs     |  6 ++-
 talk/build/merge_ios_libs.gyp | 10 +++-
 talk/build/objc_app.gypi      |  3 ++
 5 files changed, 120 insertions(+), 5 deletions(-)
 create mode 100755 talk/build/export_headers

diff --git a/talk/build/build_ios_libs.sh b/talk/build/build_ios_libs.sh
index 0ee112cc41..cc58ccca29 100755
--- a/talk/build/build_ios_libs.sh
+++ b/talk/build/build_ios_libs.sh
@@ -27,6 +27,9 @@
 
 # Generates static FAT libraries for ios in out_ios_libs.
 
+# Flag to build the new or legacy version of the API.
+USE_LEGACY_API=1
+
 # Check for Darwin.
 if [[ ! $(uname) = "Darwin" ]]; then
   echo "OS/X required." >&2
@@ -45,6 +48,12 @@ if [[ ! -x ${GYP_WEBRTC_SCRIPT} ]]; then
   echo "Failed to find gyp generator." >&2
   exit 1
 fi
+# Check for export headers script.
+EXPORT_HEADERS_SCRIPT=${SCRIPT_DIR}/export_headers
+if [[ ! -x ${EXPORT_HEADERS_SCRIPT} ]]; then
+  echo "Failed to find export headers script." >&2
+  exit 1
+fi
 # Check for merge script.
 MERGE_SCRIPT=${SCRIPT_DIR}/merge_ios_libs
 if [[ ! -x ${MERGE_SCRIPT} ]]; then
@@ -59,7 +68,6 @@ function build_webrtc {
   OUTPUT_DIR=$1
   FLAVOR=$2
   TARGET_ARCH=$3
-  TARGET_SUBARCH=$4
   if [[ ${TARGET_ARCH} = 'arm' || ${TARGET_ARCH} = 'arm64' ]]; then
     FLAVOR="${FLAVOR}-iphoneos"
   else
@@ -69,7 +77,11 @@ function build_webrtc {
   export GYP_GENERATORS="ninja"
   export GYP_GENERATOR_FLAGS="output_dir=${OUTPUT_DIR}"
   webrtc/build/gyp_webrtc talk/build/merge_ios_libs.gyp
-  ninja -C ${OUTPUT_DIR}/${FLAVOR} libjingle_peerconnection_objc_no_op
+  if [[ ${USE_LEGACY_API} -eq 1 ]]; then
+    ninja -C ${OUTPUT_DIR}/${FLAVOR} libjingle_peerconnection_objc_no_op
+  else
+    ninja -C ${OUTPUT_DIR}/${FLAVOR} webrtc_api_objc_no_op
+  fi
   mkdir -p ${LIBRARY_BASE_DIR}/${TARGET_ARCH}
   mv ${OUTPUT_DIR}/${FLAVOR}/*.a ${LIBRARY_BASE_DIR}/${TARGET_ARCH}
 }
@@ -82,5 +94,9 @@ build_webrtc "out_ios_x86_64" "Release" "x64"
 
 popd
 
+# Export header files.
+${EXPORT_HEADERS_SCRIPT} ${WEBRTC_BASE_DIR}/${LIBRARY_BASE_DIR} \
+    ${USE_LEGACY_API}
+
 # Merge the libraries together.
 ${MERGE_SCRIPT} ${WEBRTC_BASE_DIR}/${LIBRARY_BASE_DIR}
diff --git a/talk/build/export_headers b/talk/build/export_headers
new file mode 100755
index 0000000000..6d66f06619
--- /dev/null
+++ b/talk/build/export_headers
@@ -0,0 +1,86 @@
+#!/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/']
+# 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']
+
+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)
+
+  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())
diff --git a/talk/build/merge_ios_libs b/talk/build/merge_ios_libs
index ba1b21cdca..6d2698bc42 100755
--- a/talk/build/merge_ios_libs
+++ b/talk/build/merge_ios_libs
@@ -46,9 +46,11 @@ def MergeLibs(lib_base_dir):
   Returns:
     Exit code of libtool.
   """
-  output_dir_name = 'fat'
+  include_dir_name = 'include'
+  output_dir_name = 'lib'
   archs = [arch for arch in os.listdir(lib_base_dir)
-           if arch[:1] != '.' and arch != output_dir_name]
+           if arch[:1] != '.' and arch != output_dir_name
+           and arch != include_dir_name]
   # For each arch, find (library name, libary path) for arch. We will merge
   # all libraries with the same name.
   libs = {}
diff --git a/talk/build/merge_ios_libs.gyp b/talk/build/merge_ios_libs.gyp
index 76313fb61a..83625ff7db 100644
--- a/talk/build/merge_ios_libs.gyp
+++ b/talk/build/merge_ios_libs.gyp
@@ -34,11 +34,19 @@
           'includes': [ 'objc_app.gypi' ],
           'type': 'executable',
           'dependencies': [
-            '<(webrtc_root)/system_wrappers/system_wrappers.gyp:field_trial_default',
             '../app/webrtc/legacy_objc_api.gyp:libjingle_peerconnection_objc',
           ],
           'sources': ['<(webrtc_root)/build/no_op.cc',],
         },
+        {
+          'target_name': 'webrtc_api_objc_no_op',
+          'includes': [ 'objc_app.gypi' ],
+          'type': 'executable',
+          'dependencies': [
+            '<(webrtc_root)/api/api.gyp:rtc_api_objc',
+          ],
+          'sources': ['<(webrtc_root)/build/no_op.cc',],
+        },
       ],
     }]
   ],
diff --git a/talk/build/objc_app.gypi b/talk/build/objc_app.gypi
index a4e0466433..4fbd5aeeaf 100644
--- a/talk/build/objc_app.gypi
+++ b/talk/build/objc_app.gypi
@@ -32,6 +32,9 @@
   'variables': {
     'infoplist_file': './objc_app.plist',
   },
+  'dependencies': [
+    '<(webrtc_root)/system_wrappers/system_wrappers.gyp:field_trial_default',
+  ],
   'mac_bundle': 1,
   'mac_bundle_resources': [
     '<(infoplist_file)',