remove --build-dir option and fix --clean option

Author: ndgrigorian

scripts/_build_helper.py

@@ -1,6 +1,6 @@
 #                      Data Parallel Control (dpctl)
 #
-# Copyright 2020-2025 Intel Corporation
+# Copyright 2025 Intel Corporation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -121,7 +121,8 @@ def install_editable(setup_dir, env):
     )
 
 
-def clean_build_dir(build_dir):
-    if os.path.exists(build_dir):
-        print(f"Cleaning build directory: {build_dir}")
-        shutil.rmtree(build_dir)
+def clean_build_dir(setup_dir):
+    target = os.path.join(setup_dir or os.getcwd(), "_skbuild")
+    if os.path.exists(target):
+        print(f"Cleaning build directory: {target}")
+        shutil.rmtree(target)

scripts/build_locally.py

@@ -121,14 +121,9 @@ def parse_args():
         help="Enable HIP backend. Architecture required to be specified.",
     )
 
-    p.add_argument(
-        "--build-dir",
-        default="build",
-        help="CMake build directory (default: build)",
-    )
     p.add_argument(
         "--clean",
-        action="store_false",
+        action="store_true",
         help="Remove build dir before rebuild (default: False)",
     )
     p.add_argument(
@@ -145,15 +140,14 @@ def main():
         err(f"{sys.platform} not supported")
     args = parse_args()
     setup_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-    build_dir = os.path.join(setup_dir, args.build_dir)
 
     c_compiler, cxx_compiler, compiler_root = resolve_compilers(
         args.oneapi, args.c_compiler, args.cxx_compiler, args.compiler_root
     )
 
     # clean build dir if --clean set
     if args.clean:
-        clean_build_dir(build_dir)
+        clean_build_dir(setup_dir)
 
     if args.no_level_zero and args.target_level_zero:
         err("Cannot combine --no-level-zero and --target-level-zero")