From 16a46504fc359114df7f6854b0dee3940df38b04 Mon Sep 17 00:00:00 2001
From: Antoni Segura Puimedon <celebdor@gmail.com>
Date: Sep 27 2018 11:09:39 +0000
Subject: Add optional black git pre-commit hook


Since Pagure uses black for its code formatting, it makes sense to have
optional support for running it as a pre-commit hook for those days when
you forget to run it before making a pull request.

---

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..d1db311
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,6 @@
+repos:
+    - repo: https://github.com/ambv/black
+      rev: stable
+      hooks:
+          - id: black
+            language_version: python3.6
diff --git a/doc/contributing.rst b/doc/contributing.rst
index bd54af5..db88ae8 100644
--- a/doc/contributing.rst
+++ b/doc/contributing.rst
@@ -10,7 +10,12 @@ If you're submitting patches to pagure, please observe the following:
 
 - We run the source code through `black <https://pypi.python.org/pypi/black>`_
   as part of the tests, so you may have to do some adjustments or run it
-  yourself (which is simple: ``black /path/to/pagure``).
+  yourself (which is simple: ``black /path/to/pagure``). Instead, you can just
+  install `pre-commit <https://pre-commit.com/#install>`_ then run::
+
+      pre-commit install
+  This will make that each time you commit, black is run automatically on the
+  change.
 
 - Check that your code doesn't break the test suite.  The test suite can be
   run using the ``runtests.sh`` shell script at the top of the sources.
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..81173ae
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,18 @@
+[tool.black]
+line-length = 79
+py36 = true
+include = '\.pyi?$'
+exclude = '''
+/(
+    \.git
+  | \.hg
+  | \.mypy_cache
+  | \.tox
+  | \.venv
+  | _build
+  | dev
+  | doc
+  | fedmsg.d
+  | files
+)/
+'''