Refactor module layout

src/styx/cli.py

@@ -0,0 +1,54 @@
+"""Command line interface for styx."""
+
+import argparse
+import json
+import pathlib as pl
+
+from styx.boutiques import model
+from styx.compiler.core import compile_descriptor
+from styx.compiler.settings import CompilerSettings
+
+
+def _cli() -> None:
+    """Command line interface for styx."""
+    parser = argparse.ArgumentParser(
+        prog="styx",
+        description="Styx is a command line tool Python wrapper code generator.",
+    )
+
+    parser.add_argument(
+        "input",
+        type=pl.Path,
+        help="Path to the input JSON Boutiques descriptor.",
+    )
+
+    parser.add_argument(
+        "-o",
+        "--output",
+        type=pl.Path,
+        help="Path to the output Python file.",
+    )
+
+    args = parser.parse_args()
+
+    path_descriptor: pl.Path = args.input
+    path_output: pl.Path | None = args.output
+
+    settings = CompilerSettings()
+
+    with open(path_descriptor, "r") as json_file:
+        json_data = json.load(json_file)
+
+    data = model.Tool(**json_data)  # type: ignore
+
+    compiled_module = compile_descriptor(data, settings)
+
+    if path_output is None:
+        print(compiled_module)
+    else:
+        with open(path_output, "w") as py_file:
+            py_file.write(compiled_module)
+
+
+if __name__ == "__main__":
+    _cli()

src/styx/compiler/__init__.py

@@ -0,0 +1 @@
+"""Boutiques to python compiler."""