Replace black for formatting with ruff

* Add workflow to check formatting using ruff
* Add ruff formatting to pre-commit
* Remove black

.github/workflows/format.yml

@@ -0,0 +1,19 @@
+name: Format codebase
+
+on:
+  push:
+    branches: master
+  pull_request:
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    name: Format
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Format
+      uses: astral-sh/ruff-action@v1
+      with:
+        args: "format --check"
+        # changed-files: 'true'

.pre-commit-config.yaml

@@ -10,6 +10,7 @@ repos:
 -   repo: https://github.com/astral-sh/ruff-pre-commit
     rev: v0.6.9
     hooks:
+        # Run the linter
     -   id: ruff
         name: "Ruff: critical"
         args: [
@@ -18,11 +19,8 @@ repos:
           '--statistics'
         ]
         types: [file, python]
--   repo: https://github.com/psf/black
-    rev: 24.8.0
-    hooks:
-    -   id: black
-        exclude: migrations/
+        # Run the formatter
+    -   id: ruff-format
 -   repo: https://github.com/twisted/towncrier
     rev: 24.8.0
     hooks:

README.md

@@ -1,7 +1,7 @@
 # Argus
 [![build badge](https://github.com/Uninett/Argus/workflows/build/badge.svg)](https://github.com/Uninett/Argus/actions)
 [![codecov badge](https://codecov.io/gh/Uninett/Argus/branch/master/graph/badge.svg)](https://codecov.io/gh/Uninett/Argus)
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
+[![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 [![docs badge](https://readthedocs.org/projects/argus-server/badge/?version=latest&style=flat)](http://argus-server.rtfd.io/en/latest/)
 
 Argus is a platform for aggregating incidents across network management systems, and
@@ -199,7 +199,7 @@ You will find Argus running at http://localhost:8000/.
 
 ### Code style
 
-Argus uses black as a source code formatter. Black will automatically install
+Argus uses ruff as a source code formatter. Ruff will automatically install
 with the [dev requirements](requirements/dev.txt).
 
 A pre-commit hook will format new code automatically before committing.

pyproject.toml

@@ -52,7 +52,6 @@ dynamic = ["version"]
 docs = ["sphinx>=2.2.0"]
 dev = [
     "django-debug-toolbar",
-    "black",
     "coverage",
     "django-extensions",
     "ruff",
@@ -86,27 +85,6 @@ exclude = ["tests*"]
 [tool.setuptools_scm]
 write_to = "src/argus/version.py"
 
-[tool.black]
-line-length = 120
-exclude = '''
-(
-  /(
-      \.eggs         # exclude a few common directories in the
-    | \.git          # root of the project
-    | \.hg
-    | \.mypy_cache
-    | \.nox
-    | \.tox
-    | \.venv
-    | _build
-    | buck-out
-    | build
-    | dist
-  )/
-  | src/.*/migrations
-)
-'''
-
 [tool.ruff]
 line-length = 120
 extend-exclude = [

requirements/dev.txt

@@ -1,6 +1,6 @@
 Sphinx>=2.2.0
 python-dotenv
-black
+ruff
 pre-commit
 ipython
 django-extensions