docs(clew): move command details into help

src/clew/README.md

@@ -2,55 +2,8 @@
 
 Clew extracts Ren'Py game files for Ariadne.
 
-## Usage
-
-Run Clew from the repository root:
+Use `--help` for command documentation:
 
 ```sh
-bazel run //src/clew -- \
-  --game-root /path/to/game \
-  --force
+bazel run //src/clew -- --help
 ```
-
-By default, Clew writes to `output/` at the repository root.
-Use `--output-root` to choose another directory.
-
-```sh
-bazel run //src/clew -- \
-  --game-root /path/to/game \
-  --output-root /tmp/clew-output \
-  --force
-```
-
-Use `--suffix` to extract only selected archive paths.
-Repeat the flag for multiple suffixes.
-
-```sh
-bazel run //src/clew -- \
-  --game-root /path/to/game \
-  --suffix rpy \
-  --suffix rpyc \
-  --force
-```
-
-## Output
-
-Clew owns these directories under the output root:
-
-```text
-output/
-  source/   # copied loose and archived `.rpy` source files
-  work/     # extracted archives and copied compiled scripts
-  logs/     # run logs
-```
-
-Without `--force`, Clew refuses to run when one of those directories exists.
-With `--force`, Clew deletes and recreates only those directories.
-
-## Current behavior
-
-Clew copies loose `.rpy` files into `source/`.
-It copies loose `.rpyc` and `.rpymc` files into `work/compiled/`.
-It extracts each `.rpa` archive into `work/archives/`.
-It copies extracted `.rpy` files into `source/`.
-It skips files under Ren'Py runtime directories.

src/clew/clew.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import argparse
+import textwrap
 import logging
 import os
 import shutil
@@ -16,7 +17,26 @@ MANAGED_DIRS = ("source", "work", "logs")
 def parse_args(argv: list[str]) -> argparse.Namespace:
     parser = argparse.ArgumentParser(
         prog="clew",
-        description="Prepare Ren'Py game artifacts for Ariadne.",
+        description="Extract Ren'Py game files for Ariadne.",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog=textwrap.dedent(
+            """\
+            output layout:
+              output/
+                source/   copied loose and archived .rpy source files
+                work/     extracted archives and copied compiled scripts
+                logs/     run logs
+
+            behavior:
+              Clew copies loose .rpy files into source/.
+              Clew copies loose .rpyc and .rpymc files into work/compiled/.
+              Clew extracts each .rpa archive into work/archives/.
+              Clew copies extracted .rpy files into source/.
+              Clew skips files under Ren'Py runtime directories.
+              Without --force, Clew refuses to reuse managed output dirs.
+              With --force, Clew deletes only source/, work/, and logs/.
+            """
+        ),
     )
     parser.add_argument(
         "--game-root",
@@ -28,7 +48,7 @@ def parse_args(argv: list[str]) -> argparse.Namespace:
         "--output-root",
         type=Path,
         default=default_output_root(),
-        help="Preparation output root.",
+        help="Preparation output root. Defaults to repository output/.",
     )
     parser.add_argument(
         "--force",
@@ -38,7 +58,7 @@ def parse_args(argv: list[str]) -> argparse.Namespace:
     parser.add_argument(
         "--suffix",
         action="append",
-        help="Extract only archive paths with this suffix.",
+        help="Extract only archive paths with this suffix. Repeatable.",
     )
     return parser.parse_args(argv)