rust: fix buidling modules with CMAKE_BUILD_TYPE in a different case

Before this patch corrosion requires that CMAKE_BUILD_TYPE matches the
CMAKE_CONFIGURATION_TYPES, which is
"RelWithDebInfo;Debug;Release;MinSizeRel", so that said, that if you
were using CMAKE_BUILD_TYPE=debug, it will not work.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

rust/BLAKE3/CMakeLists.txt

@@ -1,4 +1,3 @@
-corrosion_import_crate(MANIFEST_PATH Cargo.toml NO_STD)
+clickhouse_import_crate(MANIFEST_PATH Cargo.toml)
-
 target_include_directories(_ch_rust_blake3 INTERFACE include)
 add_library(ch_rust::blake3 ALIAS _ch_rust_blake3)

rust/CMakeLists.txt

@@ -22,5 +22,22 @@ macro(configure_rustc)
 endmacro()
 configure_rustc()
 
+function(clickhouse_import_crate)
+    # This is a workaround for Corrosion case sensitive build type matching in
+    # _generator_add_cargo_targets(), that leads to different paths in
+    # IMPORTED_LOCATION and real path of the library.
+    #
+    # It uses CMAKE_CONFIGURATION_TYPES and $<CONFIG>, so here we preserve the
+    # case of ${CMAKE_BUILD_TYPE} in ${CMAKE_CONFIGURATION_TYPES}.
+    if ("${CMAKE_BUILD_TYPE_UC}" STREQUAL "DEBUG")
+        set(CMAKE_CONFIGURATION_TYPES "${CMAKE_BUILD_TYPE};release")
+    else()
+        set(CMAKE_CONFIGURATION_TYPES "${CMAKE_BUILD_TYPE};debug")
+    endif()
+    # NOTE: we may use LTO for rust too
+
+    corrosion_import_crate(NO_STD ${ARGN})
+endfunction()
+
 add_subdirectory (BLAKE3)
 add_subdirectory (skim)

rust/skim/CMakeLists.txt

@@ -14,7 +14,7 @@ if (OS_FREEBSD)
     return()
 endif()
 
-corrosion_import_crate(MANIFEST_PATH Cargo.toml NO_STD)
+clickhouse_import_crate(MANIFEST_PATH Cargo.toml)
 
 # -Wno-dollar-in-identifier-extension: cxx bridge complies names with '$'
 # -Wno-unused-macros: unused CXXBRIDGE1_RUST_STRING