fix: improve mypy settings such that it collects all package and test files instead of using the files passed in by pre-commit (#1248)

Author: jenstroeger

.pre-commit-config.yaml

@@ -49,9 +49,10 @@ repos:
     name: Check typing annotations
     entry: mypy
     language: python
-    files: ^src/package/|^tests/
+    files: ^src/package/|^tests/  # Declare files to run the hook only when necessary.
     types: [text, python]
-    args: [--explicit-package-bases, --config-file, pyproject.toml]
+    pass_filenames: false
+    args: [--config-file, pyproject.toml]
 
 # Enable a whole bunch of useful helper hooks, too.
 # See https://pre-commit.com/hooks.html for more hooks.

pyproject.toml

@@ -124,8 +124,15 @@ exclude = [
 
 # https://mypy.readthedocs.io/en/stable/config_file.html#using-a-pyproject-toml
 [tool.mypy]
-# mypy_path =
+files = [
+    "src/package/",
+    "tests/",
+]
 # exclude =
+mypy_path = [
+    "src/",
+]
+explicit_package_bases = true
 show_error_codes = true
 show_column_numbers = true
 pretty = true
@@ -146,11 +153,12 @@ disallow_untyped_decorators = true
 # disable_error_code =
 # allow_redefinition =
 
+# https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
 [[tool.mypy.overrides]]
 module = [
-    "pytest.*",
 ]
-ignore_missing_imports = true
+follow_untyped_imports = true
+# ignore_missing_imports = true
 
 
 # https://pylint.pycqa.org/en/latest/user_guide/configuration/index.html