fix(ydb): implementation of using installed instance of ydb-cpp-sdk

cmake/SetupYdbCppSDK.cmake

@@ -1,6 +1,112 @@
 # @ingroup download
 option(USERVER_DOWNLOAD_PACKAGE_YDBCPPSDK "Download and setup ydb-cpp-sdk" ${USERVER_DOWNLOAD_PACKAGES})
 
+set(_USERVER_YDB_COMPONENTS
+    Iam
+    Coordination
+    Driver
+    Operation
+    Query
+    Result
+    Scheme
+    SolomonStats
+    Table
+    Topic
+    FederatedTopic
+    Types
+)
+
+function(_userver_ydb_make_component_alias component)
+    if(TARGET YDB-CPP-SDK::${component})
+        return()
+    endif()
+
+    string(TOLOWER "${component}" component_lower)
+    set(candidate_targets
+        ydb-cpp-sdk::${component_lower}
+        ydb-cpp-sdk::${component}
+        ydb-cpp-sdk::ydb-cpp-sdk-${component_lower}
+        ydb-cpp-sdk::ydb-cpp-sdk_${component_lower}
+        ydb-cpp-sdk::ydb-cpp-sdk-${component}
+        ydb-cpp-sdk::ydb-cpp-sdk_${component}
+    )
+
+    foreach(candidate_target IN LISTS candidate_targets)
+        if(TARGET ${candidate_target})
+            add_library(YDB-CPP-SDK::${component} INTERFACE IMPORTED)
+            target_link_libraries(YDB-CPP-SDK::${component} INTERFACE ${candidate_target})
+            get_target_property(include_dirs ${candidate_target} INTERFACE_INCLUDE_DIRECTORIES)
+            if(include_dirs AND NOT include_dirs MATCHES "-NOTFOUND$")
+                set_target_properties(
+                    YDB-CPP-SDK::${component}
+                    PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${include_dirs}"
+                )
+            endif()
+            return()
+        endif()
+    endforeach()
+
+    message(
+        FATAL_ERROR
+            "Could not map ydb-cpp-sdk component '${component}' to required target "
+            "'YDB-CPP-SDK::${component}'. The external ydb-cpp-sdk package was found, "
+            "but it does not provide a recognized target for this component."
+    )
+endfunction()
+
+function(_userver_ydb_populate_include_dirs)
+    if(ydb-cpp-sdk_INCLUDE_DIRS)
+        return()
+    endif()
+
+    foreach(component IN LISTS _USERVER_YDB_COMPONENTS)
+        get_target_property(include_dirs YDB-CPP-SDK::${component} INTERFACE_INCLUDE_DIRECTORIES)
+        if(include_dirs AND NOT include_dirs MATCHES "-NOTFOUND$")
+            set(ydb-cpp-sdk_INCLUDE_DIRS
+                ${include_dirs}
+                PARENT_SCOPE
+            )
+            return()
+        endif()
+    endforeach()
+endfunction()
+
+if(NOT USERVER_FORCE_DOWNLOAD_PACKAGES)
+    if(NOT TARGET googleapis::google_api_annotations_cc_proto)
+        find_package(googleapis QUIET CONFIG)
+    endif()
+
+    if(NOT TARGET googleapis::google_api_annotations_cc_proto)
+        if(TARGET userver-api-common-protos)
+            add_library(googleapis::google_api_annotations_cc_proto INTERFACE IMPORTED)
+            target_link_libraries(googleapis::google_api_annotations_cc_proto INTERFACE userver-api-common-protos)
+        elseif(USERVER_DOWNLOAD_PACKAGES)
+            include(SetupGoogleProtoApis)
+            if(TARGET userver-api-common-protos)
+                add_library(googleapis::google_api_annotations_cc_proto INTERFACE IMPORTED)
+                target_link_libraries(googleapis::google_api_annotations_cc_proto INTERFACE userver-api-common-protos)
+            endif()
+        else()
+            find_package(googleapis REQUIRED CONFIG)
+        endif()
+    endif()
+
+    if(USERVER_DOWNLOAD_PACKAGE_YDBCPPSDK)
+        find_package(ydb-cpp-sdk QUIET CONFIG)
+    else()
+        find_package(ydb-cpp-sdk REQUIRED CONFIG)
+    endif()
+
+    if(ydb-cpp-sdk_FOUND)
+        foreach(component IN LISTS _USERVER_YDB_COMPONENTS)
+            _userver_ydb_make_component_alias(${component})
+        endforeach()
+
+        _userver_ydb_populate_include_dirs()
+        return()
+    endif()
+endif()
+
 include(DownloadUsingCPM)
 include(SetupBrotli)
 

cmake/install/Config.cmake.in

@@ -24,6 +24,19 @@ if(NOT userver_FIND_COMPONENTS)
     return()
 endif()
 
+include(CMakeFindDependencyMacro)
+
+set(USERVER_CMAKE_DIR ${CMAKE_CURRENT_LIST_DIR})
+
+if("ydb" IN_LIST userver_FIND_COMPONENTS)
+    set(USERVER_YDB_CONFIG_PHASE deps)
+    include("${USERVER_CMAKE_DIR}/userver-ydb-config.cmake")
+    unset(USERVER_YDB_CONFIG_PHASE)
+    if(NOT _USERVER_YDB_DEPS_LOADED)
+        return()
+    endif()
+endif()
+
 if(CMAKE_BUILD_TYPE MATCHES "^.*Rel.*$") # same as in UserverSetupEnvironment
     include("${CMAKE_CURRENT_LIST_DIR}/release/userver-targets.cmake")
 else()
@@ -32,10 +45,7 @@ endif()
 
 message(STATUS "Userver components: ${userver_FIND_COMPONENTS}")
 
-include(CMakeFindDependencyMacro)
-
 set(USERVER_DOWNLOAD_PACKAGES OFF)
-set(USERVER_CMAKE_DIR ${CMAKE_CURRENT_LIST_DIR})
 set(USERVER_TESTSUITE_DIR "${USERVER_CMAKE_DIR}/testsuite")
 set(USERVER_CONAN @USERVER_CONAN@)
 set(USERVER_IMPL_ORIGINAL_CXX_STANDARD @CMAKE_CXX_STANDARD@)

cmake/install/userver-ydb-config.cmake

@@ -1,14 +1,21 @@
-# TODO: not working yet
-include_guard(GLOBAL)
+if(USERVER_YDB_CONFIG_PHASE STREQUAL "deps")
+    if(_USERVER_YDB_DEPS_LOADED)
+        return()
+    endif()
+
+    find_dependency(googleapis CONFIG)
+    find_dependency(ydb-cpp-sdk CONFIG)
+
+    set(_USERVER_YDB_DEPS_LOADED TRUE)
+    return()
+endif()
 
 if(userver_ydb_FOUND)
     return()
 endif()
 
 find_package(userver REQUIRED COMPONENTS core)
 
-# include("${USERVER_CMAKE_DIR}/ydb-cpp-sdk.cmake")
-
 include("${USERVER_CMAKE_DIR}/UserverSql.cmake")
 
 set(userver_ydb_FOUND TRUE)

ydb/CMakeLists.txt

@@ -31,7 +31,7 @@ userver_module(
 
 _userver_directory_install(
     COMPONENT ydb
-    FILES "${USERVER_ROOT_DIR}/cmake/SetupYdbCPPSDK.cmake"
+    FILES "${USERVER_ROOT_DIR}/cmake/SetupYdbCppSDK.cmake"
     DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/userver"
 )