lint

refactor for better readibility

Author: Peter Y. Yeh

setup.py

@@ -74,7 +74,6 @@ def use_debug_mode():
     CUDAExtension,
 )
 
-
 IS_ROCM = (torch.version.hip is not None) and (ROCM_HOME is not None)
 
 # Constant known variables used throughout this file
@@ -258,38 +257,41 @@ def get_extensions():
             ]
         )
 
+    # Get base directory and source paths
     this_dir = os.path.dirname(os.path.curdir)
     extensions_dir = os.path.join(this_dir, "torchao", "csrc")
-    sources = list(glob.glob(os.path.join(extensions_dir, "**/*.cpp"), recursive=True))
 
-    extensions_cuda_dir = os.path.join(extensions_dir, "cuda")
-    cuda_sources = list(
-        glob.glob(os.path.join(extensions_cuda_dir, "**/*.cu"), recursive=True)
-    )
-
-    extensions_hip_dir = os.path.join(
-        extensions_dir, "cuda", "tensor_core_tiled_layout", "sparse_marlin"
-    )
-    hip_sources = list(
-        glob.glob(os.path.join(extensions_hip_dir, "*.cu"), recursive=True)
-    )
+    # Collect C++ source files
+    sources = list(glob.glob(os.path.join(extensions_dir, "**/*.cpp"), recursive=True))
 
-    if not IS_ROCM and use_cuda:
-        sources += cuda_sources
-
-    # TOOD: Remove this and use what CUDA has once we fix all the builds.
-    if IS_ROCM and use_cuda:
-        # Add ROCm GPU architecture check
-        gpu_arch = torch.cuda.get_device_properties(0).name
-        if gpu_arch != "gfx942":
-            print(f"Warning: Unsupported ROCm GPU architecture: {gpu_arch}")
-            print(
-                "Currently only gfx942 is supported. Skipping compilation of ROCm extensions"
+    # Collect CUDA source files if needed
+    if use_cuda:
+        if not IS_ROCM:
+            # Regular CUDA sources
+            extensions_cuda_dir = os.path.join(extensions_dir, "cuda")
+            cuda_sources = list(
+                glob.glob(os.path.join(extensions_cuda_dir, "**/*.cu"), recursive=True)
+            )
+            sources += cuda_sources
+        else:
+            # ROCm sources
+            extensions_hip_dir = os.path.join(extensions_dir, "cuda", "sparse_marlin")
+            hip_sources = list(
+                glob.glob(os.path.join(extensions_hip_dir, "*.cu"), recursive=True)
             )
-            return None
-        sources += hip_sources
 
-    if len(sources) == 0:
+            # Check ROCm GPU architecture compatibility
+            gpu_arch = torch.cuda.get_device_properties(0).name
+            if gpu_arch != "gfx942":
+                print(f"Warning: Unsupported ROCm GPU architecture: {gpu_arch}")
+                print(
+                    "Currently only gfx942 is supported. Skipping compilation of ROCm extensions"
+                )
+                return None
+            sources += hip_sources
+
+    # Return None if no sources found
+    if not sources:
         return None
 
     ext_modules = []
@@ -304,7 +306,6 @@ def get_extensions():
             )
         )
 
-
     if build_torchao_experimental:
         ext_modules.append(
             CMakeExtension(