Cleanup cli api.

cutekit/__init__.py

@@ -1,16 +1,13 @@
-import sys
 import os
 import logging
 
-from pathlib import Path
-
 from . import (
-    builder,
-    cli,  # noqa: F401 this is imported for side effects
+    builder,  # noqa: F401 this is imported for side effects
+    cli,
     const,
     model,
     plugins,
-    pods,  # noqa: F401 this is imported for side effects
+    pods,
     shell,
     vt100,
 )
@@ -68,6 +65,7 @@ class RootArgs(
 
 @cli.command(None, "/", const.DESCRIPTION)
 def _(args: RootArgs):
+    shell.mkdir(const.GLOBAL_CK_DIR)
     const.setup()
     logger.setup(args)
     plugins.setup(args)
@@ -76,7 +74,7 @@ def _(args: RootArgs):
 
 @cli.command("u", "usage", "Show usage information")
 def _():
-    print(f"Usage: {const.ARGV0} {cli._root.usage()}")
+    cli.usage()
 
 
 @cli.command("v", "version", "Show current version")
@@ -86,15 +84,13 @@ def _():
 
 def main() -> int:
     try:
-        shell.mkdir(const.GLOBAL_CK_DIR)
-        extra = os.environ.get("CK_EXTRA_ARGS", None)
-        args = [const.ARGV0] + (extra.split(" ") if extra else []) + sys.argv[1:]
-        cli._root.eval(args)
+        cli.exec()
         return 0
 
     except RuntimeError as e:
         logging.exception(e)
         vt100.error(str(e))
+        cli.usage()
         return 1
 
     except KeyboardInterrupt:

cutekit/cli.py

@@ -1,14 +1,13 @@
 from enum import Enum
+import os
+import sys
 from types import GenericAlias
 import typing as tp
 import dataclasses as dt
 import logging
 
 from typing import Any, Callable, Optional
-from cutekit import vt100, const
-
-
-T = tp.TypeVar("T")
+from cutekit import vt100, const, utils
 
 _logger = logging.getLogger(__name__)
 
@@ -647,7 +646,7 @@ class Command:
         curr, rest = self._spliceArgs(args)
 
         if "-h" in curr or "--help" in curr:
-            if len(self.path) == 0:
+            if len(self.path) == 1:
                 # HACK: This is a special case for the root command
                 #       it need to always be run because it might
                 #       load some plugins that will register subcommands
@@ -657,7 +656,7 @@ class Command:
             return
 
         if "-u" in curr or "--usage" in curr:
-            if len(self.path) == 0:
+            if len(self.path) == 1:
                 # HACK: Same as the help flag, the root command needs to be
                 #       always run to load plugins
                 self.invoke([])
@@ -724,3 +723,18 @@ def command(shortName: Optional[str], longName: str, description: str = "") -> C
         return fn
 
     return wrap
+
+
+def usage():
+    print(f"Usage: {const.ARGV0} {_root.usage()}")
+
+
+def exec():
+    extra = os.environ.get("CK_EXTRA_ARGS", None)
+    args = [const.ARGV0] + (extra.split(" ") if extra else []) + sys.argv[1:]
+    _root.eval(args)
+
+
+def defaults(typ: type[utils.T]) -> utils.T:
+    schema = Schema.extract(typ)
+    return tp.cast(utils.T, schema._instanciate())