Bump linters and enable mypy

.pre-commit-config.yaml

@@ -1,19 +1,37 @@
 ---
 repos:
-  - repo: https://github.com/pre-commit/pre-commit-hooks.git
+  - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v2.3.0  # Use the ref you want to point at
     hooks:
     - id: trailing-whitespace
     - id: check-yaml
     - id: end-of-file-fixer
-    - id: flake8
     - id: trailing-whitespace
     - id: check-executables-have-shebangs
   - repo: https://github.com/python/black
-    rev: 19.3b0
+    rev: 21.7b0
     hooks:
       - id: black
-  - repo: https://gitlab.com/pycqa/flake8.git
-    rev: 3.7.8
+  - repo: https://github.com/pycqa/flake8
+    rev: 3.9.2
     hooks:
       - id: flake8
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.910
+    hooks:
+      - id: mypy
+        # empty args needed in order to match mypy cli behavior
+        args: []
+        entry: mypy doc8/
+        pass_filenames: false
+        additional_dependencies:
+          - types-mock
+          - types-setuptools
+          - types-docutils
+          - types-toml
+  # TODO: activate pylint
+  # - repo: https://github.com/PyCQA/pylint
+  #   rev: v2.9.3
+  #   hooks:
+  #     - id: pylint
+  #       additional_dependencies: []

mypy.ini

@@ -0,0 +1,11 @@
+[mypy-pbr]
+ignore_missing_imports = True
+
+[mypy-restructuredtext_lint]
+ignore_missing_imports = True
+
+[mypy-stevedore]
+ignore_missing_imports = True
+
+[mypy-testtools]
+ignore_missing_imports = True