feat: adding pre-commit

.pre-commit-config.yaml

@@ -0,0 +1,51 @@
+repos:
+
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v3.4.0
+  hooks:
+  - id: check-added-large-files
+  - id: check-case-conflict
+  - id: check-merge-conflict
+  - id: check-symlinks
+  - id: check-yaml
+    exclude: ^conda.recipe/meta.yaml$
+  - id: debug-statements
+  - id: end-of-file-fixer
+  - id: mixed-line-ending
+  - id: requirements-txt-fixer
+  - id: trailing-whitespace
+  - id: fix-encoding-pragma
+
+  # - repo: https://github.com/psf/black
+  #   rev: 20.8b1
+  #   hooks:
+  #   - id: black
+  #
+  # - repo: https://github.com/PyCQA/isort
+  #   rev: 5.7.0
+  #   hooks:
+  #   - id: isort
+  #
+  # - repo: https://github.com/asottile/pyupgrade
+  #   rev: v2.7.4
+  #   hooks:
+  #   - id: pyupgrade
+  #
+  # - repo: https://github.com/pycqa/flake8
+  #   rev: 3.8.4
+  #   hooks:
+  #   - id: flake8
+  #     exclude: docs/conf.py
+  #     additional_dependencies: [flake8-bugbear, flake8-print]
+  #
+  # - repo: https://github.com/pre-commit/mirrors-mypy
+  #   rev: v0.800
+  #   hooks:
+  #   - id: mypy
+  #     files: plumbum
+  #
+  # - repo: https://github.com/mgedmin/check-manifest
+  #   rev: "0.46"
+  #   hooks:
+  #   - id: check-manifest
+  #     stages: [manual]

README.rst

@@ -22,6 +22,9 @@
 .. image:: https://badges.gitter.im/plumbumpy/Lobby.svg
    :alt: Join the chat at https://gitter.im/plumbumpy/Lobby
    :target: https://gitter.im/plumbumpy/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
+.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
+   :alt: Code styled with Black
+   :target: https://github.com/psf/black
 
 
 Plumbum: Shell Combinators

setup.cfg

@@ -86,3 +86,18 @@ exclude_lines =
     raise AssertionError
     raise NotImplementedError
     if __name__ == .__main__.:
+
+[mypy]
+files = src
+python_version = 2.7
+warn_unused_configs = True
+warn_unused_ignores = True
+
+[flake8]
+max-complexity = 12
+ignore = E203, E231, E501, E722, W503
+select = C,E,F,W,B,B9
+
+[tool:isort]
+profile = black
+multi_line_output = 3