refactoring

kvmd/apps/__init__.py

@@ -29,6 +29,7 @@ import logging.config
 from typing import Tuple
 from typing import List
 from typing import Dict
+from typing import Set
 from typing import Optional
 
 import pygments
@@ -52,8 +53,6 @@ from ..yamlconf import build_raw_from_options
 from ..yamlconf.dumper import make_config_dump
 from ..yamlconf.loader import load_yaml_file
 
-from ..validators import check_string_in_list
-
 from ..validators.basic import valid_stripped_string
 from ..validators.basic import valid_stripped_string_not_empty
 from ..validators.basic import valid_bool
@@ -181,7 +180,7 @@ def _patch_dynamic(  # pylint: disable=too-many-locals
             rebuild = True
 
     if load_gpio:
-        drivers: List[str] = []
+        drivers: Set[str] = set()
         for (driver, params) in {  # type: ignore
             "__gpio__": {},
             **tools.rget(raw_config, "kvmd", "gpio", "drivers"),
@@ -192,17 +191,13 @@ def _patch_dynamic(  # pylint: disable=too-many-locals
                 "type": Option(driver_type, type=valid_stripped_string_not_empty),
                 **get_ugpio_driver_class(driver_type).get_plugin_options()
             }
-            drivers.append(driver)
+            drivers.add(driver)
 
         for (channel, params) in tools.rget(raw_config, "kvmd", "gpio", "scheme").items():
             channel = valid_ugpio_channel(channel)
             mode = valid_ugpio_mode(params.get("mode", ""))
             scheme["kvmd"]["gpio"]["scheme"][channel] = {
-                "driver": Option("__gpio__", type=(lambda arg: check_string_in_list(
+                "driver":   Option("__gpio__", type=(lambda arg: valid_ugpio_driver(arg, drivers))),
-                    arg=valid_stripped_string_not_empty(arg),
-                    name="configured GPIO driver",
-                    variants=drivers,
-                ))),
                 "pin":      Option(-1, type=valid_gpio_pin),
                 "mode":     Option("", type=valid_ugpio_mode),
                 "inverted": Option(False, type=valid_bool),

kvmd/validators/__init__.py

@@ -23,6 +23,7 @@
 import re
 
 from typing import List
+from typing import Set
 from typing import Mapping
 from typing import Sequence
 from typing import Callable
@@ -62,13 +63,19 @@ def check_not_none_string(arg: Any, name: str, strip: bool=True) -> str:
     return arg
 
 
-def check_in_list(arg: Any, name: str, variants: Union[Sequence, Mapping]) -> Any:
+def check_in_list(arg: Any, name: str, variants: Union[Sequence, Mapping, Set]) -> Any:
     if arg not in variants:
         raise_error(arg, name)
     return arg
 
 
-def check_string_in_list(arg: Any, name: str, variants: Union[Sequence[str], Mapping[str, Any]], lower: bool=True) -> str:
+def check_string_in_list(
+    arg: Any,
+    name: str,
+    variants: Union[Sequence[str], Mapping[str, Any], Set[str]],
+    lower: bool=True,
+) -> str:
+
     arg = check_not_none_string(arg, name)
     if lower:
         arg = arg.lower()

kvmd/validators/kvm.py

@@ -21,6 +21,8 @@
 
 
 from typing import List
+from typing import Set
+from typing import Optional
 from typing import Any
 
 from ..keyboard.mappings import KEYMAP
@@ -92,9 +94,12 @@ def valid_hid_mouse_wheel(arg: Any) -> int:
 
 
 # =====
-def valid_ugpio_driver(arg: Any) -> str:
+def valid_ugpio_driver(arg: Any, variants: Optional[Set[str]]=None) -> str:
     name = "GPIO driver"
-    return check_len(check_re_match(arg, name, r"^[a-zA-Z_][a-zA-Z0-9_-]*$"), name, 255)
+    arg = check_len(check_re_match(arg, name, r"^[a-zA-Z_][a-zA-Z0-9_-]*$"), name, 255)
+    if variants is not None:
+        arg = check_string_in_list(arg, f"configured {name}", variants)
+    return arg
 
 
 def valid_ugpio_mode(arg: Any) -> str: