refactoring

kvmd/validators/ugpio.py

@@ -0,0 +1,56 @@
+# ========================================================================== #
+#                                                                            #
+#    KVMD - The main Pi-KVM daemon.                                          #
+#                                                                            #
+#    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
+#                                                                            #
+#    This program is free software: you can redistribute it and/or modify    #
+#    it under the terms of the GNU General Public License as published by    #
+#    the Free Software Foundation, either version 3 of the License, or       #
+#    (at your option) any later version.                                     #
+#                                                                            #
+#    This program is distributed in the hope that it will be useful,         #
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of          #
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           #
+#    GNU General Public License for more details.                            #
+#                                                                            #
+#    You should have received a copy of the GNU General Public License       #
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.  #
+#                                                                            #
+# ========================================================================== #
+
+
+from typing import List
+from typing import Set
+from typing import Optional
+from typing import Any
+
+from . import raise_error
+from . import check_string_in_list
+from . import check_re_match
+from . import check_len
+
+
+# =====
+def valid_ugpio_driver(arg: Any, variants: Optional[Set[str]]=None) -> str:
+    name = "GPIO driver"
+    arg = check_len(check_re_match(arg, name, r"^[a-zA-Z_][a-zA-Z0-9_-]*$"), name, 255)
+    if variants is not None:
+        arg = check_string_in_list(arg, f"configured {name}", variants, False)
+    return arg
+
+
+def valid_ugpio_channel(arg: Any) -> str:
+    name = "GPIO channel"
+    return check_len(check_re_match(arg, name, r"^[a-zA-Z_][a-zA-Z0-9_-]*$"), name, 255)
+
+
+def valid_ugpio_mode(arg: Any, variants: Set[str]) -> str:
+    return check_string_in_list(arg, "GPIO driver's pin mode", variants)
+
+
+def valid_ugpio_view_table(arg: Any) -> List[List[str]]:
+    try:
+        return [list(map(str, row)) for row in list(arg)]
+    except Exception:
+        raise_error("<skipped>", "GPIO view table")