add types and descriptions for script args

Author: ndgrigorian

scripts/build_locally.py

@@ -36,10 +36,16 @@ def parse_args():
     p = argparse.ArgumentParser(description="Local dpctl build driver")
 
     p.add_argument(
-        "--c-compiler", default=None, help="Path or name of C compiler"
+        "--c-compiler",
+        type=str,
+        default=None,
+        help="Path or name of C compiler",
     )
     p.add_argument(
-        "--cxx-compiler", default=None, help="Path or name of C++ compiler"
+        "--cxx-compiler",
+        type=str,
+        default=None,
+        help="Path or name of C++ compiler",
     )
     p.add_argument(
         "--compiler-root",

scripts/gen_coverage.py

@@ -118,13 +118,20 @@ def parse_args():
 
     p.add_argument(
         "--gtest-config",
+        type=str,
         help="Path to GTestConfig.cmake file for a custom GTest installation",
     )
     p.add_argument(
         "--bin-llvm",
+        type=str,
         help="Path to folder where llvm-cov/llvm-profdata can be found",
     )
-    p.add_argument("--skip-pytest", dest="run_pytest", action="store_false")
+    p.add_argument(
+        "--skip-pytest",
+        dest="run_pytest",
+        action="store_false",
+        help="Skip running pytest and coverage generation",
+    )
     p.add_argument(
         "--clean",
         action="store_true",

scripts/gen_docs.py

@@ -97,6 +97,7 @@ def parse_args():
 
     p.add_argument(
         "--doxyrest-root",
+        type=str,
         help=(
             "Path to Doxyrest installation to use to generate Sphinx docs"
             + "for libsyclinterface"