Add pre-commit (#63)

* Set isort to black compatability

* Add pre-commit config

* Add pre-commit as a dev dependency

* Add pre-commit to contributing docs

Author: shenanigansd

.pre-commit-config.yaml

@@ -0,0 +1,9 @@
+repos:
+  - repo: https://github.com/pycqa/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+  - repo: https://github.com/ambv/black
+    rev: 22.1.0
+    hooks:
+      - id: black

CONTRIBUTING.md

@@ -99,3 +99,8 @@ Add the following to user's `settings.json` :
 
 All isort command line options can be found [here](https://pycqa.github.io/isort/docs/configuration/options.html).
 
+## pre-commit
+
+[pre-commit](https://pre-commit.com) is a dev dependency of Pglet and is automatically installed by `pdm install`.
+To install the pre-commit hooks run: `pre-commit install`.
+Once installed, everytime you commit, pre-commit will run the configured hooks against changed files.

pdm.lock

@@ -30,8 +30,14 @@ documentation = "https://pglet.io/docs/"
 tests = [
     "pytest>=6.1.2",
 ]
-dev = []
+dev = [
+    "pre-commit>=2.17.0",
+]
 
 [build-system]
 requires = ["git+https://github.com/pdm-project/pdm-pep517.git"]
-build-backend = "pdm.pep517.api"
+build-backend = "pdm.pep517.api"
+
+[tool.isort]
+profile = "black"
+float_to_top = true