Add pre-commit configuration and badges

Author: nicoddemus

.github/workflows/main.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ["3.6", "3.7", "3.8", "3.9", "3.10"]        
+        python: ["3.6", "3.7", "3.8", "3.9", "3.10"]
         include:
           - python: "3.6"
             tox_env: "py36"

.pre-commit-config.yaml

@@ -0,0 +1,25 @@
+repos:
+  - repo: https://github.com/psf/black
+    rev: 21.9b0
+    hooks:
+      - id: black
+        args: [--safe, --quiet]
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+  - repo: local
+    hooks:
+      - id: rst
+        name: rst
+        entry: rst-lint --encoding utf-8
+        files: ^(CHANGELOG|README.rst)$
+        language: python
+        additional_dependencies: [pygments, restructuredtext_lint]
+  - repo: https://github.com/asottile/reorder_python_imports
+    rev: v2.6.0
+    hooks:
+    - id: reorder-python-imports
+      args: ['--application-directories=.:src']
+  

README.rst

@@ -14,7 +14,7 @@ This plugin **does not work on Windows** because there's no ``fork`` support.
 * ``--forked``: run each test in a forked
   subprocess to survive ``SEGFAULTS`` or otherwise dying processes.
 
-|python| |version| |ci|
+|python| |version| |ci| |pre-commit| |black|
 
 .. |version| image:: http://img.shields.io/pypi/v/pytest-forked.svg
   :target: https://pypi.python.org/pypi/pytest-forked
@@ -25,6 +25,12 @@ This plugin **does not work on Windows** because there's no ``fork`` support.
 .. |python| image:: https://img.shields.io/pypi/pyversions/pytest-forked.svg
   :target: https://pypi.python.org/pypi/pytest-forked/
 
+.. |black| image:: https://img.shields.io/badge/code%20style-black-000000.svg
+  :target: https://github.com/ambv/black
+
+.. |pre-commit| image:: https://results.pre-commit.ci/badge/github/pytest-dev/pytest-forked/master.svg
+   :target: https://results.pre-commit.ci/latest/github/pytest-dev/pytest-forked/master  
+
 Installation
 -----------------------