Merge pull request #8435 from levysh/add-grpc-contrib

Add grpc contrib

.gitmodules

@@ -104,6 +104,10 @@
 [submodule "contrib/sparsehash-c11"]
 	path = contrib/sparsehash-c11
 	url = https://github.com/sparsehash/sparsehash-c11.git
+[submodule "contrib/grpc"]
+	path = contrib/grpc
+	url = https://github.com/grpc/grpc.git
+	branch = v1.25.0
 [submodule "contrib/aws"]
 	path = contrib/aws
 	url = https://github.com/aws/aws-sdk-cpp.git

CMakeLists.txt

@@ -341,6 +341,7 @@ endif()
 include (cmake/find/libxml2.cmake)
 include (cmake/find/brotli.cmake)
 include (cmake/find/protobuf.cmake)
+include (cmake/find/grpc.cmake)
 include (cmake/find/pdqsort.cmake)
 include (cmake/find/hdfs3.cmake) # uses protobuf
 include (cmake/find/s3.cmake)

cmake/find/grpc.cmake

@@ -0,0 +1,57 @@
+set(_PROTOBUF_PROTOC $<TARGET_FILE:protoc>)
+set(_GRPC_CPP_PLUGIN_EXECUTABLE $<TARGET_FILE:grpc_cpp_plugin>)
+
+function(PROTOBUF_GENERATE_GRPC_CPP SRCS HDRS)
+  if(NOT ARGN)
+    message(SEND_ERROR "Error: PROTOBUF_GENERATE_GRPC_CPP() called without any proto files")
+    return()
+  endif()
+
+  if(PROTOBUF_GENERATE_CPP_APPEND_PATH)
+    foreach(FIL ${ARGN})
+      get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+      get_filename_component(ABS_PATH ${ABS_FIL} PATH)
+      list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
+      if(${_contains_already} EQUAL -1)
+          list(APPEND _protobuf_include_path -I ${ABS_PATH})
+      endif()
+    endforeach()
+  else()
+    set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR})
+  endif()
+
+  if(DEFINED PROTOBUF_IMPORT_DIRS)
+    foreach(DIR ${Protobuf_IMPORT_DIRS})
+      get_filename_component(ABS_PATH ${DIR} ABSOLUTE)
+      list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
+      if(${_contains_already} EQUAL -1)
+          list(APPEND _protobuf_include_path -I ${ABS_PATH})
+      endif()
+    endforeach()
+  endif()
+
+  set(${SRCS})
+  set(${HDRS})
+  foreach(FIL ${ARGN})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.grpc.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.grpc.pb.h")
+
+    add_custom_command(
+      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.grpc.pb.cc"
+             "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.grpc.pb.h"
+      COMMAND  ${_PROTOBUF_PROTOC}
+      ARGS --grpc_out=${CMAKE_CURRENT_BINARY_DIR}
+           --plugin=protoc-gen-grpc=${_GRPC_CPP_PLUGIN_EXECUTABLE}
+           ${_protobuf_include_path} ${ABS_FIL}
+      DEPENDS ${ABS_FIL}
+      COMMENT "Running gRPC C++ protocol buffer compiler on ${FIL}"
+      VERBATIM)
+  endforeach()
+
+  set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE)
+  set(${SRCS} ${${SRCS}} PARENT_SCOPE)
+  set(${HDRS} ${${HDRS}} PARENT_SCOPE)
+endfunction()

contrib/CMakeLists.txt

@@ -340,4 +340,6 @@ if (USE_FASTOPS)
     add_subdirectory (fastops-cmake)
 endif()
 
+add_subdirectory(grpc-cmake)
+
 add_subdirectory(replxx-cmake)

contrib/grpc

@@ -0,0 +1 @@
+Subproject commit c1d176528fd8da9dd4066d16554bcd216d29033f