feat(ci): modernize pre-commit and mypy config

.pre-commit-config.yaml

+ci:
+  autofix_prs: false
+
 repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-merge-conflict
+      - id: check-case-conflict
+      - id: check-toml
+      - id: check-json
+      - id: pretty-format-json
+        args: [--autofix, --no-ensure-ascii, --no-sort-keys]
+      - id: check-ast
+      - id: debug-statements
+
+  - repo: https://github.com/pre-commit/pygrep-hooks
+    rev: v1.9.0
+    hooks:
+      - id: python-check-blanket-type-ignore
+      - id: python-check-mock-methods
+
+  - repo: https://github.com/pycqa/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+        types: [python] # FIXME: pyi support that doesn't conflict with black
+
   - repo: https://github.com/psf/black
-    rev: 20.8b1
+    rev: 21.10b0
     hooks:
       - id: black
 
-  - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.8.4
+  - repo: https://github.com/pycqa/flake8
+    rev: 4.0.1
     hooks:
       - id: flake8
-        additional_dependencies: [flake8-bugbear]
+        additional_dependencies:
+          - flake8-bugbear
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.910
+    rev: v0.910-1
     hooks:
       - id: mypy
         pass_filenames: false
         additional_dependencies:
+          - types-dataclasses
           - types-requests
-        args:
-          - poetry
-
-  - repo: https://github.com/timothycrosley/isort
-    rev: 5.7.0
-    hooks:
-      - id: isort
-        additional_dependencies: [toml]
-        exclude: ^.*/?setup\.py$
-
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v3.4.0
-    hooks:
-      - id: trailing-whitespace
-        exclude: |
-          (?x)(
-            ^tests/.*/fixtures/.*
-            | ^tests/console/commands/debug/test_resolve.py
-          )
-      - id: end-of-file-fixer
-        exclude: ^tests/.*/fixtures/.*
-      - id: debug-statements
-
-ci:
-  autofix_prs: false

mypy.ini

-[mypy]
-check_untyped_defs = True
-ignore_errors = False
-ignore_missing_imports = True
-strict_optional = True
-warn_unused_ignores = True
-warn_redundant_casts = True
-warn_unused_configs = True
-
-# The following whitelist is used to allow for incremental adoption
-# of Mypy. Modules should be removed from this whitelist as and when
-# their respective type errors have been addressed. No new modules
-# should be added to this whitelist.
-# see https://github.com/python-poetry/poetry/pull/4510.
-
-[mypy-poetry.config.file_config_source]
-ignore_errors = True
-
-[mypy-poetry.console.*]
-ignore_errors = True
-
-[mypy-poetry.factory.*]
-ignore_errors = True
-
-[mypy-poetry.inspection.*]
-ignore_errors = True
-
-[mypy-poetry.installation.*]
-ignore_errors = True
-
-[mypy-poetry.layouts.*]
-ignore_errors = True
-
-[mypy-poetry.mixology.*]
-ignore_errors = True
-
-[mypy-poetry.packages.locker]
-ignore_errors = True
-
-[mypy-poetry.puzzle.*]
-ignore_errors = True
-
-[mypy-poetry.repositories.installed_repository]
-ignore_errors = True
-
-[mypy-poetry.utils.*]
-ignore_errors = True
-
-# end of whitelist

pyproject.toml

@@ -72,38 +72,56 @@ build-backend = "poetry.core.masonry.api"
 
 
 [tool.isort]
+py_version = 36
 profile = "black"
 force_single_line = true
-atomic = true
-include_trailing_comma = true
-lines_after_imports = 2
+combine_as_imports = true
 lines_between_types = 1
-use_parentheses = true
+lines_after_imports = 2
 src_paths = ["poetry", "tests"]
-skip_glob = ["*/setup.py"]
-filter_files = true
-known_first_party = "poetry"
+extend_skip = ["setup.py"]
 
 
 [tool.black]
-line-length = 88
-include = '\.pyi?$'
-exclude = '''
-/(
-    \.eggs
-  | \.git
-  | \.hg
-  | \.mypy_cache
-  | \.tox
-  | \.venv
-  | _build
-  | buck-out
-  | build
-  | dist
-  | tests/.*/setup.py
-)/
+target-version = ['py36']
+force-exclude = '''
+.*/setup\.py$
 '''
 
+
+[tool.mypy]
+python_version = "3.6"
+check_untyped_defs = true
+ignore_missing_imports = true
+warn_redundant_casts = true
+warn_unused_configs = true
+warn_unused_ignores = true
+files = "poetry"
+
+# The following whitelist is used to allow for incremental adoption
+# of Mypy. Modules should be removed from this whitelist as and when
+# their respective type errors have been addressed. No new modules
+# should be added to this whitelist.
+# see https://github.com/python-poetry/poetry/pull/4510.
+
+[[tool.mypy.overrides]]
+module = [
+  'poetry.poetry',
+  'poetry.config.file_config_source',
+  'poetry.console.*',
+  'poetry.factory.*',
+  'poetry.inspection.*',
+  'poetry.installation.*',
+  'poetry.layouts.*',
+  'poetry.mixology.*',
+  'poetry.packages.locker',
+  'poetry.puzzle.*',
+  'poetry.repositories.installed_repository',
+  'poetry.utils.*'
+]
+ignore_errors = true
+
+
 [tool.coverage.report]
 exclude_lines = [
     "pragma: no cover",