Set up more housekeeping

More gitignore boilerplate from https://github.com/github/gitignore.

.editorconfig

@@ -0,0 +1,15 @@
+# http://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+end_of_line = lf
+
+[*.{yaml,yml}]
+indent_style = space
+indent_size = 2

.gitignore

@@ -1,17 +1,122 @@
-# Byte-compiled files
-*.pyc
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
 
-# Packaging
-*.egg
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
 *.egg-info/
-*.eggs
-build
-dist
-shivs/
+.installed.cfg
+*.egg
+MANIFEST
 
-# Unit test
-.cache/
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
 .tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# Visual Studio Code
+.vscode
 
 # auto-generated version file
 Lib/fontmake/_version.py

.pre-commit-config.yaml

@@ -0,0 +1,27 @@
+repos:
+- repo: https://github.com/ambv/black
+  rev: 18.9b0
+  hooks:
+  - id: black
+    language_version: python3
+- repo: https://github.com/asottile/blacken-docs
+  rev: v0.3.0
+  hooks:
+  - id: blacken-docs
+    additional_dependencies: [black==18.9b0]
+- repo: https://github.com/asottile/pyupgrade
+  rev: v1.11.1
+  hooks:
+  - id: pyupgrade
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v2.1.0
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-yaml
+  - id: check-ast
+  - id: mixed-line-ending
+    args: ["--fix=lf"]
+  - id: debug-statements
+  - id: flake8
+    additional_dependencies: [flake8-bugbear]

.travis.yml

@@ -9,11 +9,17 @@ python:
   - "2.7"
   - "3.6"
 
+cache:
+  directories:
+    - $HOME/.cache/pip
+    - $HOME/.cache/pre-commit
+
 install:
   - pip install --upgrade pip
-  - pip install -r test_requirements.txt .
+  - pip install pre-commit -r test_requirements.txt .
 
 script:
+  - pre-commit run --all-files --show-diff-on-failure
   - (cd test && ./run.sh)
 
 after_success: