CMake: Retrieve Chromium and WebRTC separately

Samples/PeerConnection/CMakeLists.txt

@@ -57,3 +57,5 @@ elseif(UNIX AND NOT APPLE)
 endif(WIN32)
 
 target_link_libraries(PeerConnection ${PEERCONNECTION_LIBRARIES})
+
+add_dependencies(PeerConnection libwebrtc_merge)

Targets/Build/CMakeLists.txt

@@ -1,85 +0,0 @@
-include(Common)
-
-#
-# Generate build files
-#
-
-set(LIBWEBRTC_GEN_ARGS use_gold=false)
-
-if (NOT CMAKE_BUILD_TYPE MATCHES DEBUG)
-  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS} is_debug=false)
-elseif (NOT CMAKE_BUILD_TYPE MATCHES DEBUG)
-  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS} is_debug=true)
-endif (NOT CMAKE_BUILD_TYPE MATCHES DEBUG)
-
-if (WIN32)
-  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS})
-elseif (APPLE)
-  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS})
-elseif (UNIX AND NOT APPLE)
-  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS})
-endif (WIN32)
-
-if (NOT BUILD_TESTS)
-  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS} rtc_include_tests=false)
-endif (NOT BUILD_TESTS)
-
-set(GENERATE_COMMAND gn gen out/Default --args="${LIBWEBRTC_GEN_ARGS}")
-
-add_libwebrtc_command(libwebrtc_generate_build
-                      ${CMAKE_BINARY_DIR}/Nevermind
-                      "${GENERATE_COMMAND}"
-                      ${CMAKE_BINARY_DIR}/src
-                      "Generate build files"
-                      libwebrtc_links)
-
-#
-# Run ninja
-#
-
-set(BUILD_WEBRTC_COMMAND
-    ninja -C out/Default libjingle_peerconnection field_trial_default metrics_default)
-
-add_libwebrtc_command(libwebrtc_build
-                      ${CMAKE_BINARY_DIR}/src/out/Default/obj/root.stamp
-                      "${BUILD_WEBRTC_COMMAND}"
-                      ${CMAKE_BINARY_DIR}/src
-                      "Build WebRTC"
-                      libwebrtc_generate_build)
-
-#
-# Merge libraries into a single one
-#
-
-if (WIN32)
-  set(LIBWEBRTC_OBJ_EXT *.obj)
-elseif (UNIX AND NOT APPLE)
-  set(LIBWEBRTC_OBJ_EXT *.o)
-elseif (APPLE)
-  set(LIBWEBRTC_OBJ_EXT *.a)
-endif (WIN32)
-
-file(GLOB_RECURSE LIBWEBRTC_OBJ_FILES
-     ${CMAKE_BINARY_DIR}/src/out/Default/obj/${LIBWEBRTC_OBJ_EXT})
-
-file(GLOB_RECURSE LIBWEBRTC_OBJ_EXCLUDED
-     ${CMAKE_BINARY_DIR}/src/out/Default/obj/third_party/yasm/gen*/${LIBWEBRTC_OBJ_EXT}
-     ${CMAKE_BINARY_DIR}/src/out/Default/obj/third_party/yasm/re2c/${LIBWEBRTC_OBJ_EXT}
-     ${CMAKE_BINARY_DIR}/src/out/Default/obj/third_party/yasm/yasm/${LIBWEBRTC_OBJ_EXT}
-     ${CMAKE_BINARY_DIR}/src/out/Default/obj/third_party/protobuf/protoc/${LIBWEBRTC_OBJ_EXT}
-     ${CMAKE_BINARY_DIR}/src/out/Default/obj/third_party/protobuf/protobuf_full/${LIBWEBRTC_OBJ_EXT})
-
-list(REMOVE_ITEM LIBWEBRTC_OBJ_FILES ${LIBWEBRTC_OBJ_EXCLUDED})
-
-add_library(webrtc STATIC ${LIBWEBRTC_OBJ_FILES})
-
-set_source_files_properties(${LIBWEBRTC_OBJ_FILES} PROPERTIES
-                            EXTERNAL_OBJECT true
-                            GENERATED true)
-
-set_target_properties(webrtc PROPERTIES
-                      LINKER_LANGUAGE C)
-
-install(TARGETS webrtc
-        DESTINATION ${LIBWEBRTC_INSTALL_LIB_DIR}
-        COMPONENT Libraries)

Targets/CMakeLists.txt

@@ -1,4 +1 @@
-add_subdirectory(Fetch)
+add_subdirectory(WebRTC)
-add_subdirectory(Build)
-add_subdirectory(Test)
-add_subdirectory(Install)

Targets/Fetch/CMakeLists.txt

@@ -1,70 +0,0 @@
-include(Common)
-
-#
-# Fetch
-#
-
-set(GCLIENT_CONFIG_COMMAND
-    ${DEPOTTOOLS_GCLIENT_EXECUTABLE} config --name src
-    https://chromium.googlesource.com/external/webrtc.git)
-
-add_libwebrtc_command(libwebrtc_config
-                      ${CMAKE_BINARY_DIR}/.gclient
-                      "${GCLIENT_CONFIG_COMMAND}"
-                      ${CMAKE_BINARY_DIR}
-                      "Configuring gclient to pull webrtc code")
-
-#
-# Sync
-#
-
-set(GCLIENT_SYNC_COMMAND
-    ${DEPOTTOOLS_GCLIENT_EXECUTABLE} sync
-    --revision ${LIBWEBRTC_WEBRTC_REVISION} -n -D)
-
-add_libwebrtc_command(libwebrtc_sync
-                      ${CMAKE_BINARY_DIR}/src/all.gyp
-                      "${GCLIENT_SYNC_COMMAND}"
-                      ${CMAKE_BINARY_DIR}
-                      "Retrieving WebRTC source code"
-                      libwebrtc_config)
-
-#
-# Sync Chromium
-#
-
-set(GIT_CLONE_COMMAND
-    git clone ${LIBWEBRTC_CHROMIUM_DEPS} ${CMAKE_BINARY_DIR}/src/chromium/src)
-
-add_libwebrtc_command(libwebrtc_chromium_deps
-                      ${CMAKE_BINARY_DIR}/src/chromium/src
-                      "${GIT_CLONE_COMMAND}"
-                      ${CMAKE_BINARY_DIR}
-                      "Retrieving Chromium dependencies"
-                      libwebrtc_sync)
-
-#
-# Update Clang
-#
-
-set(UPDATE_CLANG_COMMAND python chromium/src/tools/clang/scripts/update.py)
-
-add_libwebrtc_command(libwebrtc_clang
-                      ${CMAKE_BINARY_DIR}/src/chromium/src/third_party/llvm-build
-                      "${UPDATE_CLANG_COMMAND}"
-                      ${CMAKE_BINARY_DIR}/src
-                      "Updating clang"
-                      libwebrtc_chromium_deps)
-
-#
-# Setup Links
-#
-
-set(SETUP_LINKS_COMMAND python setup_links.py)
-
-add_libwebrtc_command(libwebrtc_links
-                      ${CMAKE_BINARY_DIR}/src/tools/clang
-                      "${SETUP_LINKS_COMMAND}"
-                      ${CMAKE_BINARY_DIR}/src
-                      "Creating symbolic links"
-                      libwebrtc_clang)

Targets/Install/CMakeLists.txt

@@ -1,54 +0,0 @@
-#
-# Install headers
-#
-
-install(
-    DIRECTORY ${CMAKE_BINARY_DIR}/src/webrtc
-    DESTINATION ${LIBWEBRTC_INSTALL_INCLUDE_DIR}
-    FILES_MATCHING PATTERN "*.h"
-)
-
-#
-# Create package
-#
-
-set(CPACK_PACKAGE_NAME "${LIBWEBRTC_MAJOR_VERSION}")
-set(CPACK_PACKAGE_VERSION_MAJOR "${LIBWEBRTC_MAJOR_VERSION}")
-set(CPACK_PACKAGE_VERSION_MINOR "${LIBWEBRTC_MINOR_VERSION}")
-set(CPACK_PACKAGE_VERSION_PATCH "${LIBWEBRTC_PATCH_VERSION}")
-
-if (WIN)
-  set(CPACK_GENERATOR "ZIP")
-else (WIN)
-  set(CPACK_GENERATOR "TGZ")
-endif (WIN)
-
-if (CMAKE_SYSTEM_NAME MATCHES "Linux")
-  set(LIBWEBRTC_PLATFORM "linux")
-elseif (CMAKE_SYSTEM_NAME MATCHES "Darwin")
-  set(LIBWEBRTC_PLATFORM "mac")
-elseif (CMAKE_SYSTEM_NAME MATCHES "Windows")
-  set(LIBWEBRTC_PLATFORM "win32")
-endif ()
-
-if (CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
-  set(LIBWEBRTC_ARCH "arm")
-elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$")
-  set(LIBWEBRTC_ARCH "x86")
-elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "^x86.64$")
-  set(LIBWEBRTC_ARCH "x64")
-elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "AMD64")
-  set(LIBWEBRTC_ARCH "x64")
-elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "powerpc")
-  set(LIBWEBRTC_ARCH "ppc")
-elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "powerpc64")
-  set(LIBWEBRTC_ARCH "ppc64")
-else ()
-  set(LIBWEBRTC_ARCH "${CMAKE_SYSTEM_PROCESSOR}")
-endif ()
-
-set(CPACK_INCLUDE_TOPLEVEL_DIRECTORY 0)
-set(CPACK_PACKAGE_FILE_NAME "libwebrtc-${LIBWEBRTC_VERSION}-${LIBWEBRTC_PLATFORM}-${LIBWEBRTC_ARCH}")
-set(CPACK_PACKAGE_INSTALL_DIRECTORY "libwebrtc")
-
-include(CPack)

Targets/WebRTC/CMakeLists.txt

@@ -0,0 +1,121 @@
+include(Common)
+include(ExternalProject)
+
+ExternalProject_Add(chromium
+                    SOURCE_DIR ${CMAKE_BINARY_DIR}/src/chromium/src
+
+                    GIT_REPOSITORY ${LIBWEBRTC_CHROMIUM_DEPS}
+                    CONFIGURE_COMMAND ""
+                    BUILD_COMMAND ""
+                    INSTALL_COMMAND "")
+
+ExternalProject_Add(webrtc
+                    DEPENDS chromium
+
+                    PREFIX ${CMAKE_BINARY_DIR}
+                    BINARY_DIR ${CMAKE_BINARY_DIR}
+                    SOURCE_DIR ${CMAKE_BINARY_DIR}
+                    DOWNLOAD_DIR ${CMAKE_BINARY_DIR}
+
+                    DOWNLOAD_COMMAND ""
+                    CONFIGURE_COMMAND ""
+                    BUILD_COMMAND ""
+                    INSTALL_COMMAND "")
+
+#
+# Configure gclient
+#
+set(GCLIENT_CONFIG_COMMAND
+    ${DEPOTTOOLS_GCLIENT_EXECUTABLE} config --name src
+    https://chromium.googlesource.com/external/webrtc.git)
+ExternalProject_Add_Step(webrtc config
+                         COMMAND ${GCLIENT_CONFIG_COMMAND}
+                         COMMENT "Configure gclient"
+                         WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
+
+#
+# Synchronize
+#
+set(GCLIENT_SYNC_COMMAND
+    ${DEPOTTOOLS_GCLIENT_EXECUTABLE} sync
+    --revision ${LIBWEBRTC_WEBRTC_REVISION} -n -D)
+ExternalProject_Add_Step(webrtc sync
+                         DEPENDEES config
+                         COMMAND ${GCLIENT_SYNC_COMMAND}
+                         COMMENT "Synchronize WebRTC"
+                         WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
+
+#
+# Update clang
+#
+set(UPDATE_CLANG_COMMAND python chromium/src/tools/clang/scripts/update.py)
+ExternalProject_Add_Step(webrtc clang
+                         DEPENDEES sync
+                         COMMAND ${UPDATE_CLANG_COMMAND}
+                         COMMENT "Update clang"
+                         WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/src)
+
+#
+# Generate symbolic links
+#
+set(SETUP_LINKS_COMMAND python setup_links.py)
+ExternalProject_Add_Step(webrtc links
+                         DEPENDEES clang
+                         COMMAND ${SETUP_LINKS_COMMAND}
+                         COMMENT "Generate symbolic links"
+                         WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/src)
+
+#
+# Generate build files
+#
+set(LIBWEBRTC_GEN_ARGS use_gold=false)
+
+if (NOT CMAKE_BUILD_TYPE MATCHES DEBUG)
+  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS} is_debug=false)
+elseif (NOT CMAKE_BUILD_TYPE MATCHES DEBUG)
+  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS} is_debug=true)
+endif (NOT CMAKE_BUILD_TYPE MATCHES DEBUG)
+
+if (WIN32)
+  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS})
+elseif (APPLE)
+  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS})
+elseif (UNIX AND NOT APPLE)
+  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS})
+endif (WIN32)
+
+if (NOT BUILD_TESTS)
+  set(LIBWEBRTC_GEN_ARGS ${LIBWEBRTC_GEN_ARGS} rtc_include_tests=false)
+endif (NOT BUILD_TESTS)
+
+set(LIBWEBRTC_GEN_CMD gn gen out/Default --args=\"${LIBWEBRTC_GEN_ARGS}\")
+add_libwebrtc_command(webrtc-generate
+                      "Generate"
+                      "${LIBWEBRTC_GEN_CMD}"
+                      ${CMAKE_BINARY_DIR}/src
+                      "Generating build files"
+                      webrtc)
+
+#
+# Run the build command
+#
+set(LIBWEBRTC_BUILD_CMD ninja -C out/Default)
+add_libwebrtc_command(webrtc-build
+                      "Build"
+                      "${LIBWEBRTC_BUILD_CMD}"
+                      ${CMAKE_BINARY_DIR}/src
+                      "Building WebRTC"
+                      webrtc-generate)
+
+#
+# Link the library
+#
+ExternalProject_Add(libwebrtc
+                    DEPENDS webrtc-build
+                    INSTALL_COMMAND ""
+                    SOURCE_DIR ${CMAKE_SOURCE_DIR}/Targets/libwebrtc
+                    BINARY_DIR ${CMAKE_BINARY_DIR}/libwebrtc
+
+                    CMAKE_ARGS
+                    -DLIBWEBRTC_OUTPUT_DIR:STRING=${CMAKE_BINARY_DIR}/src/out/Default
+                    -DLIBWEBRTC_INSTALL_LIB_DIR:PATH=${LIBWEBRTC_INSTALL_LIB_DIR})

Targets/libwebrtc/CMakeLists.txt

@@ -0,0 +1,45 @@
+cmake_minimum_required(VERSION 2.8)
+project(libwebrtc)
+
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
+    ${CMAKE_SOURCE_DIR}/CMakeModules)
+
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT")
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
+
+if (WIN32)
+  set(LIBWEBRTC_OBJ_EXT obj)
+elseif (UNIX AND NOT APPLE)
+  set(LIBWEBRTC_OBJ_EXT o)
+elseif (APPLE)
+  set(LIBWEBRTC_OBJ_EXT a)
+endif (WIN32)
+
+file(GLOB_RECURSE LIBWEBRTC_OBJ_FILES
+     ${LIBWEBRTC_OUTPUT_DIR}/obj/*.${LIBWEBRTC_OBJ_EXT})
+
+file(GLOB_RECURSE LIBWEBRTC_OBJ_EXCLUDED
+     ${LIBWEBRTC_OUTPUT_DIR}/obj/third_party/yasm/gen*/*.${LIBWEBRTC_OBJ_EXT}
+     ${LIBWEBRTC_OUTPUT_DIR}/obj/third_party/yasm/re2c/*.${LIBWEBRTC_OBJ_EXT}
+     ${LIBWEBRTC_OUTPUT_DIR}/obj/third_party/yasm/yasm/*.${LIBWEBRTC_OBJ_EXT}
+     ${LIBWEBRTC_OUTPUT_DIR}/obj/third_party/protobuf/protoc/*.${LIBWEBRTC_OBJ_EXT}
+     ${LIBWEBRTC_OUTPUT_DIR}/obj/third_party/protobuf/protobuf_full/*.${LIBWEBRTC_OBJ_EXT})
+
+list(LENGTH LIBWEBRTC_OBJ_EXCLUDED LIBWEBRTC_OBJ_EXCLUDED_LEN)
+
+if(${LIBWEBRTC_OBJ_EXCLUDED_LEN} GREATER "0")
+  list(REMOVE_ITEM LIBWEBRTC_OBJ_FILES ${LIBWEBRTC_OBJ_EXCLUDED})
+endif()
+
+add_library(webrtc STATIC ${LIBWEBRTC_OBJ_FILES})
+
+set_source_files_properties(${LIBWEBRTC_OBJ_FILES} PROPERTIES
+                            EXTERNAL_OBJECT true
+                            GENERATED true)
+
+set_target_properties(webrtc PROPERTIES
+                      LINKER_LANGUAGE C)
+
+install(TARGETS webrtc
+        DESTINATION ${LIBWEBRTC_INSTALL_LIB_DIR}
+        COMPONENT Libraries)