Make dlpack version easily discoverable (#165)

Create dlpack_version.txt file containing the required dlpack version
and update CMakeLists.txt to read from it instead of hardcoding the
version. This addresses issue #164 by making the dlpack dependency
version easily accessible to users and automated build systems
without requiring manual parsing of CMake files.

Fixes #164

Signed-off-by: Emilien Macchi <[email protected]>

Author: EmilienM

dlpack_version.txt

@@ -0,0 +1 @@
+1.1

python/CMakeLists.txt

@@ -17,10 +17,14 @@ IF(CUDNN_FRONTEND_USE_SYSTEM_DLPACK)
     message(FATAL_ERROR "dlpack not found")
   endif()
 else()
+  # Read dlpack version from dlpack_version.txt
+  file(READ ${PROJECT_SOURCE_DIR}/dlpack_version.txt DLPACK_VERSION)
+  string(STRIP "${DLPACK_VERSION}" DLPACK_VERSION)
+  
   FetchContent_Declare(
     dlpack
     GIT_REPOSITORY https://github.com/dmlc/dlpack
-    GIT_TAG        v1.1
+    GIT_TAG        v${DLPACK_VERSION}
   )
   FetchContent_MakeAvailable(dlpack)
 endif()