Add --exclude argument for excluding directories from formatting

Author: rmzmrnn

src/fprime/util/cli.py

@@ -251,6 +251,14 @@ def add_special_parsers(
         default=[],
         help="If specified, --pass-through must be the last argument. Remaining arguments passed to underlying executable",
     )
+    format_parser.add_argument(
+        "--exclude",
+        nargs="+",
+        default=[],
+        type=Path,
+        help="Exclude directories from formatting"
+    )
+    
     return {
         "hash-to-file": run_hash_to_file,
         "info": run_info,

src/fprime/util/commands.py

@@ -192,12 +192,17 @@ def run_code_format(
     # Stage all files that are passed through --files
     for filename in parsed.files:
         clang_formatter.stage_file(Path(filename))
+    # List all excluded directories
+    excluded_dirs = [Path(directory) for directory in parsed.exclude]
     # Search for files within --dirs and stage them
     for dirname in parsed.dirs:
         dir_path = Path(dirname)
         if not dir_path.is_dir():
             print(f"[INFO] {dir_path} is not a directory. Skipping.")
             continue
+        if dir_path in excluded_dirs:
+            print(f"[INFO] Excluded {dir_path} from formatting.")
+            continue
         for allowed_ext in clang_formatter.allowed_extensions:
             for file in dir_path.rglob(f"*{allowed_ext}"):
                 clang_formatter.stage_file(file)