simplify top level CMakeLists.txt

7 files changed, 270 insertions, 0 deletions

diff --git a/cmake/benchmark.cmake b/cmake/benchmark.cmake
new file mode 100644
index 0000000000..c6284225a3
--- /dev/null
+++ b/cmake/benchmark.cmake
@@ -0,0 +1,33 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if("${gRPC_BENCHMARK_PROVIDER}" STREQUAL "module")
+  if(NOT BENCHMARK_ROOT_DIR)
+    set(BENCHMARK_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/benchmark)
+  endif()
+  if(EXISTS "${BENCHMARK_ROOT_DIR}/CMakeLists.txt")
+      add_subdirectory(${BENCHMARK_ROOT_DIR} third_party/benchmark)
+      if(TARGET benchmark)
+          set(_gRPC_BENCHMARK_LIBRARIES benchmark)
+      endif()
+  else()
+      message(WARNING "gRPC_BENCHMARK_PROVIDER is \"module\" but BENCHMARK_ROOT_DIR is wrong")
+  endif()
+elseif("${gRPC_BENCHMARK_PROVIDER}" STREQUAL "package")
+  find_package(benchmark)
+  if(TARGET benchmark::benchmark)
+    set(_gRPC_BENCHMARK_LIBRARIES benchmark::benchmark)
+  endif()
+  set(_gRPC_FIND_BENCHMARK "if(NOT benchmark_FOUND)\n  find_package(benchmark)\nendif()")
+endif()
diff --git a/cmake/cares.cmake b/cmake/cares.cmake
new file mode 100644
index 0000000000..521cf52e77
--- /dev/null
+++ b/cmake/cares.cmake
@@ -0,0 +1,36 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if("${gRPC_CARES_PROVIDER}" STREQUAL "module")
+  if(NOT CARES_ROOT_DIR)
+    set(CARES_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/cares/cares)
+  endif()
+  set(CARES_SHARED OFF CACHE BOOL "disable shared library")
+  set(CARES_STATIC ON CACHE BOOL "link cares statically")
+  set(CARES_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party/cares/cares")
+  add_subdirectory(third_party/cares/cares)
+  if(TARGET c-ares)
+    set(_gRPC_CARES_LIBRARIES c-ares)
+  endif()
+  if(gRPC_INSTALL)
+    message(WARNING "gRPC_INSTALL will be forced to FALSE because gRPC_CARES_PROVIDER is \"module\"")
+    set(gRPC_INSTALL FALSE)
+  endif()
+elseif("${gRPC_CARES_PROVIDER}" STREQUAL "package")
+  find_package(c-ares REQUIRED CONFIG)
+  if(TARGET c-ares::cares)
+    set(_gRPC_CARES_LIBRARIES c-ares::cares)
+  endif()
+  set(_gRPC_FIND_CARES "if(NOT c-ares_FOUND)\n  find_package(c-ares CONFIG)\nendif()")
+endif()
diff --git a/cmake/gflags.cmake b/cmake/gflags.cmake
new file mode 100644
index 0000000000..1864bda357
--- /dev/null
+++ b/cmake/gflags.cmake
@@ -0,0 +1,33 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if("${gRPC_GFLAGS_PROVIDER}" STREQUAL "module")
+  if(NOT GFLAGS_ROOT_DIR)
+    set(GFLAGS_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/gflags)
+  endif()
+  if(EXISTS "${GFLAGS_ROOT_DIR}/CMakeLists.txt")
+      add_subdirectory(${GFLAGS_ROOT_DIR} third_party/gflags)
+      if(TARGET gflags_static)
+          set(_gRPC_GFLAGS_LIBRARIES gflags_static)
+      endif()
+  else()
+      message(WARNING "gRPC_GFLAGS_PROVIDER is \"module\" but GFLAGS_ROOT_DIR is wrong")
+  endif()
+elseif("${gRPC_GFLAGS_PROVIDER}" STREQUAL "package")
+  find_package(gflags)
+  if(TARGET gflags::gflags)
+    set(_gRPC_GFLAGS_LIBRARIES gflags::gflags)
+  endif()
+  set(_gRPC_FIND_GFLAGS "if(NOT gflags_FOUND)\n  find_package(gflags)\nendif()")
+endif()
diff --git a/cmake/msvc_static_runtime.cmake b/cmake/msvc_static_runtime.cmake
index fc6d1d62d3..844bd02653 100644
--- a/cmake/msvc_static_runtime.cmake
+++ b/cmake/msvc_static_runtime.cmake
@@ -1,3 +1,17 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 option(gRPC_MSVC_STATIC_RUNTIME "Link with static msvc runtime libraries" OFF)
 
 if(gRPC_MSVC_STATIC_RUNTIME)
diff --git a/cmake/protobuf.cmake b/cmake/protobuf.cmake
new file mode 100644
index 0000000000..e2206a2319
--- /dev/null
+++ b/cmake/protobuf.cmake
@@ -0,0 +1,77 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if("${gRPC_PROTOBUF_PROVIDER}" STREQUAL "module")
+  # Building the protobuf tests require gmock what is not part of a standard protobuf checkout.
+  # Disable them unless they are explicitly requested from the cmake command line (when we assume
+  # gmock is downloaded to the right location inside protobuf).
+  if(NOT protobuf_BUILD_TESTS)
+    set(protobuf_BUILD_TESTS OFF CACHE BOOL "Build protobuf tests")
+  endif()
+  # Disable building protobuf with zlib. Building protobuf with zlib breaks
+  # the build if zlib is not installed on the system.
+  if(NOT protobuf_WITH_ZLIB)
+    set(protobuf_WITH_ZLIB OFF CACHE BOOL "Build protobuf with zlib.")
+  endif()
+  if(NOT PROTOBUF_ROOT_DIR)
+    set(PROTOBUF_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/protobuf)
+  endif()
+  set(PROTOBUF_WELLKNOWN_IMPORT_DIR ${PROTOBUF_ROOT_DIR}/src)
+  if(EXISTS "${PROTOBUF_ROOT_DIR}/cmake/CMakeLists.txt")
+    set(protobuf_MSVC_STATIC_RUNTIME OFF CACHE BOOL "Link static runtime libraries")
+    add_subdirectory(${PROTOBUF_ROOT_DIR}/cmake third_party/protobuf)
+    if(TARGET ${_gRPC_PROTOBUF_LIBRARY_NAME})
+      set(_gRPC_PROTOBUF_LIBRARIES ${_gRPC_PROTOBUF_LIBRARY_NAME})
+    endif()
+    if(TARGET libprotoc)
+      set(_gRPC_PROTOBUF_PROTOC_LIBRARIES libprotoc)
+    endif()
+    if(TARGET protoc)
+      set(_gRPC_PROTOBUF_PROTOC protoc)
+      set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE $<TARGET_FILE:protoc>)
+    endif()
+  else()
+      message(WARNING "gRPC_PROTOBUF_PROVIDER is \"module\" but PROTOBUF_ROOT_DIR is wrong")
+  endif()
+  if(gRPC_INSTALL)
+    message(WARNING "gRPC_INSTALL will be forced to FALSE because gRPC_PROTOBUF_PROVIDER is \"module\"")
+    set(gRPC_INSTALL FALSE)
+  endif()
+elseif("${gRPC_PROTOBUF_PROVIDER}" STREQUAL "package")
+  find_package(Protobuf REQUIRED ${gRPC_PROTOBUF_PACKAGE_TYPE})
+  if(Protobuf_FOUND OR PROTOBUF_FOUND)
+    if(TARGET protobuf::${_gRPC_PROTOBUF_LIBRARY_NAME})
+      set(_gRPC_PROTOBUF_LIBRARIES protobuf::${_gRPC_PROTOBUF_LIBRARY_NAME})
+    else()
+      set(_gRPC_PROTOBUF_LIBRARIES ${PROTOBUF_LIBRARIES})
+    endif()
+    if(TARGET protobuf::libprotoc)
+      set(_gRPC_PROTOBUF_PROTOC_LIBRARIES protobuf::libprotoc)
+    else()
+      set(_gRPC_PROTOBUF_PROTOC_LIBRARIES ${PROTOBUF_PROTOC_LIBRARIES})
+    endif()
+    if(TARGET protobuf::protoc)
+      set(_gRPC_PROTOBUF_PROTOC protobuf::protoc)
+      set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE $<TARGET_FILE:protobuf::protoc>)
+    else()
+      set(_gRPC_PROTOBUF_PROTOC ${PROTOBUF_PROTOC_EXECUTABLE})
+      set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE ${PROTOBUF_PROTOC_EXECUTABLE})
+    endif()
+    set(_gRPC_FIND_PROTOBUF "if(NOT Protobuf_FOUND AND NOT PROTOBUF_FOUND)\n  find_package(Protobuf ${gRPC_PROTOBUF_PACKAGE_TYPE})\nendif()")
+  endif()
+  if(PROTOBUF_FOUND)
+    include_directories(${PROTOBUF_INCLUDE_DIRS})
+  endif()
+  set(PROTOBUF_WELLKNOWN_IMPORT_DIR /usr/local/include)
+endif()
diff --git a/cmake/ssl.cmake b/cmake/ssl.cmake
new file mode 100644
index 0000000000..75ce069fe6
--- /dev/null
+++ b/cmake/ssl.cmake
@@ -0,0 +1,38 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if("${gRPC_SSL_PROVIDER}" STREQUAL "module")
+  if(NOT BORINGSSL_ROOT_DIR)
+    set(BORINGSSL_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/boringssl)
+  endif()
+  if(EXISTS "${BORINGSSL_ROOT_DIR}/CMakeLists.txt")
+    set(OPENSSL_NO_ASM ON)  # make boringssl buildable with Visual Studio
+    add_subdirectory(${BORINGSSL_ROOT_DIR} third_party/boringssl)
+    if(TARGET ssl)
+      set(_gRPC_SSL_LIBRARIES ssl)
+      set(_gRPC_SSL_INCLUDE_DIR ${BORINGSSL_ROOT_DIR}/include)
+    endif()
+  else()
+      message(WARNING "gRPC_SSL_PROVIDER is \"module\" but BORINGSSL_ROOT_DIR is wrong")
+  endif()
+  if(gRPC_INSTALL)
+    message(WARNING "gRPC_INSTALL will be forced to FALSE because gRPC_SSL_PROVIDER is \"module\"")
+    set(gRPC_INSTALL FALSE)
+  endif()
+elseif("${gRPC_SSL_PROVIDER}" STREQUAL "package")
+  find_package(OpenSSL REQUIRED)
+  set(_gRPC_SSL_LIBRARIES ${OPENSSL_LIBRARIES})
+  set(_gRPC_SSL_INCLUDE_DIR ${OPENSSL_INCLUDE_DIR})
+  set(_gRPC_FIND_SSL "if(NOT OPENSSL_FOUND)\n  find_package(OpenSSL)\nendif()")
+endif()
diff --git a/cmake/zlib.cmake b/cmake/zlib.cmake
new file mode 100644
index 0000000000..16cd9e66d5
--- /dev/null
+++ b/cmake/zlib.cmake
@@ -0,0 +1,39 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if("${gRPC_ZLIB_PROVIDER}" STREQUAL "module")
+  if(NOT ZLIB_ROOT_DIR)
+    set(ZLIB_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/zlib)
+  endif()
+  set(ZLIB_INCLUDE_DIR "${ZLIB_ROOT_DIR}")
+  if(EXISTS "${ZLIB_ROOT_DIR}/CMakeLists.txt")
+      # TODO(jtattermusch): workaround for https://github.com/madler/zlib/issues/218
+      include_directories(${ZLIB_INCLUDE_DIR})
+
+      add_subdirectory(${ZLIB_ROOT_DIR} third_party/zlib)
+      if(TARGET zlibstatic)
+          set(_gRPC_ZLIB_LIBRARIES zlibstatic)
+      endif()
+  else()
+      message(WARNING "gRPC_ZLIB_PROVIDER is \"module\" but ZLIB_ROOT_DIR is wrong")
+  endif()
+  if(gRPC_INSTALL)
+    message(WARNING "gRPC_INSTALL will be forced to FALSE because gRPC_ZLIB_PROVIDER is \"module\"")
+    set(gRPC_INSTALL FALSE)
+  endif()
+elseif("${gRPC_ZLIB_PROVIDER}" STREQUAL "package")
+  find_package(ZLIB REQUIRED)
+  set(_gRPC_ZLIB_LIBRARIES ${ZLIB_LIBRARIES})
+  set(_gRPC_FIND_ZLIB "if(NOT ZLIB_FOUND)\n  find_package(ZLIB)\nendif()")
+endif()