feat: add pre-commit (#24)

* add pre-commit
* bump isort pre-commit hook

Author: sanders41

.pre-commit-config.yaml

@@ -0,0 +1,25 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.1.0
+    hooks:
+    - id: check-toml
+    - id: end-of-file-fixer
+    - id: trailing-whitespace
+  - repo: https://github.com/PyCQA/isort
+    rev: 5.10.1
+    hooks:
+    - id: isort
+  - repo: https://github.com/psf/black
+    rev: 22.3.0
+    hooks:
+    - id: black
+      language_version: python3
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.941
+    hooks:
+    - id: mypy
+  - repo: https://github.com/PyCQA/flake8
+    rev: 4.0.1
+    hooks:
+    - id: flake8
+      args: ["--ignore=E203,W503"]

requirements-dev.txt

@@ -0,0 +1 @@
+pre-commit

src/textual_inputs/events.py

@@ -10,13 +10,13 @@
 HANDLER_SAFE = ascii_lowercase + digits + "_"
 
 
-class InputOnChange(Message, bubble=True):
+class InputOnChange(Message, bubble=True):  # type: ignore
     """Generic on change message for inputs"""
 
     _handler: str = "handle_input_on_change"
 
 
-class InputOnFocus(Message, bubble=True):
+class InputOnFocus(Message, bubble=True):  # type: ignore
     """Generic on focus message for inputs"""
 
     _handler: str = "handle_input_on_focus"
@@ -62,6 +62,6 @@ def make_message_class(handler_name: str) -> Message:
             )
     name = handler_name.lower()[7:]
     t = type(name, (Message,), {})
-    t._handler = handler_name
-    t.bubble = True
+    t._handler = handler_name  # type: ignore
+    t.bubble = True  # type: ignore
     return t

src/textual_inputs/integer_input.py

@@ -195,6 +195,7 @@ def _render_text_with_cursor(self) -> List[Union[str, Tuple[str, Style]]]:
                 and cursor.
         """
         value = self._value_as_str
+        segments: List[Union[str, Tuple[str, Style]]]
 
         if len(value) == 0:
             segments = [self.cursor]

src/textual_inputs/text_input.py

@@ -3,21 +3,20 @@
 """
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, List, Optional, Tuple, Union
+from typing import TYPE_CHECKING, Any, List, Optional, Tuple, Union
 
 import rich.box
+from rich.console import Console
 from rich.panel import Panel
 from rich.style import Style
+from rich.syntax import Syntax
 from rich.text import Text
 from textual import events
 from textual.reactive import Reactive
 from textual.widget import Widget
 
 from textual_inputs.events import InputOnChange, InputOnFocus, make_message_class
 
-from rich.console import Console
-from rich.syntax import Syntax
-
 if TYPE_CHECKING:
     from rich.console import RenderableType