Add pre-commit configuration and linting tox-env

Author: nicoddemus

.pre-commit-config.yaml

@@ -0,0 +1,21 @@
+exclude: '^($|.*\.bin)'
+repos:
+  - repo: https://github.com/ambv/black
+    rev: 19.10b0
+    hooks:
+      - id: black
+        args: [--safe, --quiet]
+        language_version: python3.6
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.5.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+  - repo: local
+    hooks:
+      - id: rst
+        name: rst
+        entry: rst-lint --encoding utf-8
+        files: README.rst
+        language: python
+        additional_dependencies: [pygments, restructuredtext_lint]

.travis.yml

@@ -14,6 +14,8 @@ jobs:
       python: '3.8'
     - env: TOXENV=py38-pytest53
       python: '3.8'
+    - env: TOXENV=linting
+      python: '3.7'
     - stage: deploy
       python: '3.8'
       install: pip install -U setuptools setuptools_scm

README.rst

@@ -4,7 +4,7 @@ pytest-cpp
 
 Use `pytest <https://pypi.python.org/pypi/pytest>`_ runner to discover and execute C++ tests.
 
-|python| |version| |anaconda| |ci| |coverage|
+|python| |version| |anaconda| |ci| |coverage| |black|
 
 Supports both `Google Test <https://code.google.com/p/googletest>`_ and
 `Boost::Test <http://www.boost.org/doc/libs/release/libs/test>`_:
@@ -27,6 +27,9 @@ Supports both `Google Test <https://code.google.com/p/googletest>`_ and
     :target: https://pypi.python.org/pypi/pytest-cpp/
     :alt: Supported Python versions
 
+.. |black| image:: https://img.shields.io/badge/code%20style-black-000000.svg
+    :target: https://github.com/psf/black
+
 This brings several benefits:
 
 * Allows you to run all your tests in multi-language projects with a single

tox.ini

@@ -7,7 +7,14 @@ deps=
     pytest53: pytest ~=5.3
     pytest-mock
     pytest-xdist
-    coverage    
+    coverage
 commands=
     coverage run --source=pytest_cpp -m pytest tests
     pytest -n8 tests
+
+[testenv:linting]
+skipsdist = True
+usedevelop = True
+extras = dev
+basepython = python3.7
+commands = pre-commit run --all-files --show-diff-on-failure