ci: Move linting to pre-commit

That's where the cool kids are 😎

Author: Synss

.github/workflows/lint.yml

@@ -0,0 +1,14 @@
+name: pre-commit
+
+on:
+  pull_request:
+  push:
+    branches: [master, dev]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v3
+      - uses: pre-commit/action@v3.0.0

.github/workflows/pre-commit.yml

@@ -0,0 +1,58 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+# See https://pre-commit.ci for CI config
+
+ci:
+  autoupdate_schedule: monthly
+repos:
+  - repo: meta
+    hooks:
+      - id: check-hooks-apply
+      - id: check-useless-excludes
+  - repo: local
+    hooks:
+      - id: check-future-annotations
+        name: check future annotations
+        language: script
+        entry: scripts/check-future-annotations.sh
+        types: [python]
+        exclude: ^docs/source/
+      - id: check-license-header
+        name: check license header
+        language: script
+        entry: scripts/check-license-header.sh
+        types_or: [cython, python]
+        exclude: ^docs/source/
+  - repo: 'https://github.com/pre-commit/pre-commit-hooks'
+    rev: v4.3.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-added-large-files
+  - repo: 'https://github.com/psf/black'
+    rev: 22.6.0
+    hooks:
+      - id: black
+        types: [python]
+  - repo: 'https://github.com/pycqa/flake8'
+    rev: 5.0.4
+    hooks:
+      - id: flake8
+        additional_dependencies:
+          - flake8-force
+          - flake8-pytest-style
+        types_or: [cython, python]
+  - repo: 'https://github.com/PyCQA/isort'
+    rev: 5.10.1
+    hooks:
+      - id: isort
+        types_or: [cython, python]
+  - repo: 'https://github.com/asottile/pyupgrade'
+    rev: v2.37.3
+    hooks:
+      - id: pyupgrade
+        types_or: [cython, python]
+        args:
+          - '--py37-plus'
+          - '--keep-runtime-typing'

.pre-commit-config.yaml

@@ -4,6 +4,10 @@
 Cryptographic library for Python with Mbed TLS back end
 =======================================================
 
+.. image:: https://results.pre-commit.ci/badge/github/Synss/python-mbedtls/master.svg
+   :target: https://results.pre-commit.ci/latest/github/Synss/python-mbedtls/master
+   :alt: pre-commit.ci status
+
 .. image::
    https://github.com/Synss/python-mbedtls/actions/workflows/main.yml/badge.svg?branch=master
    :target: https://github.com/Synss/python-mbedtls/actions/

README.rst

@@ -1,8 +1,7 @@
 #!/bin/sh
 
 ANNOTATIONS_MISSING="$(
-  find programs src tests -name '*.py' -o -name '*.pyi' \
-  | xargs grep -L '^from __future__ import annotations$'
+  grep -L '^from __future__ import annotations$' "$@"
 )"
 printf "%s\n" "$ANNOTATIONS_MISSING"
 test -z "$ANNOTATIONS_MISSING"

requirements/lint.in

@@ -1,8 +1,7 @@
 #!/bin/sh
 
 LICENSE_MISSING="$(
-  find programs src tests -name '*.py' -o -name '*.pyi' -o -name '*.pyx' -o -name '*.pxd' \
-  | xargs grep -L '^# SPDX-License-Identifier: MIT$'
+  grep -L '^# SPDX-License-Identifier: MIT$' "$@"
 )"
 printf "%s\n" "$LICENSE_MISSING"
 test -z "$LICENSE_MISSING"

requirements/lint.txt

@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: MIT
+
+from __future__ import annotations
+
 import ctypes
 import ctypes.util
 import os