From 7411d0fd69415cd689a8090869f78c40bcc97edb Mon Sep 17 00:00:00 2001
From: Filip Leonarski <filip.leonarski@psi.ch>
Date: Wed, 8 Nov 2023 18:39:55 +0100
Subject: [PATCH] gRPC: Only OS gRPC is supported

---
 grpc/CMakeLists.txt | 37 ++++++++-----------------------------
 1 file changed, 8 insertions(+), 29 deletions(-)

diff --git a/grpc/CMakeLists.txt b/grpc/CMakeLists.txt
index 55278ed3..f9365a4a 100644
--- a/grpc/CMakeLists.txt
+++ b/grpc/CMakeLists.txt
@@ -1,36 +1,15 @@
-SET(USE_SYSTEM_GRPC ON CACHE BOOL "Use system installed GRPC if available")
 SET(ABSL_PROPAGATE_CXX_STD ON)
 SET(protobuf_MODULE_COMPATIBLE TRUE)
 
-IF(USE_SYSTEM_GRPC)
-    FIND_PACKAGE(Protobuf CONFIG)
-    FIND_PACKAGE(gRPC CONFIG)
-ENDIF()
+FIND_PACKAGE(Protobuf CONFIG REQUIRED)
+FIND_PACKAGE(gRPC CONFIG REQUIRED)
 
-IF (gRPC_FOUND)
-    MESSAGE(STATUS "Using preinstalled protobuf ${Protobuf_VERSION}")
-    MESSAGE(STATUS "Using preinstalled gRPC ${gRPC_VERSION}")
-    SET(_GRPC_GRPCPP gRPC::grpc++)
-    SET(_PROTOBUF_PROTOC $<TARGET_FILE:protobuf::protoc>)
-    SET(_GRPC_CPP_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_cpp_plugin>)
-    SET(_GRPC_PYTHON_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_python_plugin>)
-ELSE()
-    INCLUDE(FetchContent)
-
-    FetchContent_Declare(
-            gRPC
-            GIT_REPOSITORY https://github.com/grpc/grpc
-            GIT_TAG        v1.53.0
-    )
-    SET(FETCHCONTENT_QUIET OFF)
-    SET(gRPC_ZLIB_PROVIDER "package")
-    SET(gRPC_INSTALL OFF)
-    FetchContent_MakeAvailable(gRPC)
-    SET(_PROTOBUF_PROTOC $<TARGET_FILE:protobuf::protoc>)
-    SET(_GRPC_CPP_PLUGIN_EXECUTABLE $<TARGET_FILE:grpc_cpp_plugin>)
-    SET(_GRPC_PYTHON_PLUGIN_EXECUTABLE $<TARGET_FILE:grpc_python_plugin>)
-    SET(_GRPC_GRPCPP grpc++)
-ENDIF()
+MESSAGE(STATUS "Using preinstalled protobuf ${Protobuf_VERSION}")
+MESSAGE(STATUS "Using preinstalled gRPC ${gRPC_VERSION}")
+SET(_GRPC_GRPCPP gRPC::grpc++)
+SET(_PROTOBUF_PROTOC $<TARGET_FILE:protobuf::protoc>)
+SET(_GRPC_CPP_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_cpp_plugin>)
+SET(_GRPC_PYTHON_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_python_plugin>)
 
 SET(rg_proto "jfjoch.proto")
 SET(rg_proto_srcs "${CMAKE_CURRENT_BINARY_DIR}/jfjoch.pb.cc")