add uWebsockets in CMakeList.txt

CMakeLists.txt

@@ -73,6 +73,62 @@ if (SPDLOG_LIBRARY)
     add_compile_definitions(PUBLIC USE_SPDLOG_LIBRARY)
 endif()
 
+
+option(USE_UWEBSOCKET "Use of uWebsocket library for websocket-related staff" ON)
+
+if (USE_UWEBSOCKET)
+    include(FetchContent)
+    include(ExternalProject)
+
+    FetchContent_Declare(uwebsockets
+        SOURCE_DIR ${CMAKE_BINARY_DIR}/uWebsockets
+        BINARY_DIR ${CMAKE_BINARY_DIR}
+        GIT_REPOSITORY "https://github.com/uNetworking/uWebSockets.git"
+        GIT_TAG "v20.67.0"
+        GIT_SHALLOW TRUE
+        GIT_SUBMODULES ""
+        GIT_PROGRESS TRUE
+        )
+    FetchContent_MakeAvailable(uwebsockets)
+    FetchContent_GetProperties(uwebsockets SOURCE_DIR uwebsockets_SOURCE_DIR)
+
+    set(UWEBSOCKET_INCLUDE_DIR ${uwebsockets_SOURCE_DIR}/src)
+
+    FetchContent_Declare(usockets
+        SOURCE_DIR ${uwebsockets_SOURCE_DIR}/uSockets
+        BINARY_DIR ${CMAKE_BINARY_DIR}
+        GIT_REPOSITORY "https://github.com/uNetworking/uSockets.git"
+        GIT_TAG "v0.8.8"
+        GIT_SHALLOW TRUE
+        GIT_SUBMODULES ""
+        GIT_PROGRESS TRUE
+        )
+    FetchContent_MakeAvailable(usockets)
+    FetchContent_GetProperties(usockets SOURCE_DIR usockets_SOURCE_DIR)
+
+    set(USOCKETS_INCLUDE_DIR ${usockets_SOURCE_DIR}/src)
+
+    include(ExternalProject)
+
+    ExternalProject_Add(LIBUS
+        SOURCE_DIR ${usockets_SOURCE_DIR}
+        PREFIX ${CMAKE_BINARY_DIR}/_deps
+        BUILD_IN_SOURCE TRUE
+        CONFIGURE_COMMAND ""
+        BUILD_COMMAND ${CMAKE_COMMAND} -E env "WITH_OPENSSL=1" make
+        INSTALL_COMMAND ""
+        BUILD_BYPRODUCTS ${usockets_SOURCE_DIR}/uSockets.a
+    )
+
+    add_library(LIBUS_LIB STATIC IMPORTED)
+    set_target_properties(LIBUS_LIB PROPERTIES IMPORTED_LOCATION ${usockets_SOURCE_DIR}/uSockets.a)
+    get_target_property(LIBUS_LIB_PATH LIBUS_LIB IMPORTED_LOCATION)
+
+    include_directories(${USOCKETS_INCLUDE_DIR})
+    include_directories(${UWEBSOCKETS_INCLUDE_DIR})
+
+endif(USE_UWEBSOCKET)
+
 option(BUILD_TESTS "Build tests" ON)
 
 if (BUILD_TESTS)