Proposal: Add pre-commit config to repo

.github/workflows/lint.yml

@@ -0,0 +1,21 @@
+# Lint (via prek)
+# All linting and formatting hooks are defined in .pre-commit-config.yaml
+# and run together via prek:
+#   - ruff      Python linting and formatting
+#   - prettier  Markdown, JSON, YAML, and other non-Python files
+#   - yamllint  YAML style and syntax
+# ---
+# Action failing?
+#   Install prek: download from https://github.com/j178/prek/releases
+#   Run locally:  prek run --all-files
+---
+name: Lint
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: j178/prek-action@v1

.pre-commit-config.yaml

@@ -0,0 +1,40 @@
+# Pre-commit hooks configuration
+# ---
+# Managed by prek (https://prek.j178.dev) — a fast, Rust-based, drop-in
+# replacement for pre-commit. Uses the same .pre-commit-config.yaml format.
+#
+# Install prek:
+#   Download from https://github.com/j178/prek/releases
+#   or: cargo install prek
+#
+# Install git hooks (run once after cloning):
+#   prek install
+#
+# Run all hooks manually without committing:
+#   prek run --all-files
+
+repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.15.3
+    hooks:
+      # Linter — auto-fixes violations where possible before the commit lands
+      - id: ruff
+        args: [--fix]
+      # Formatter — enforces consistent code style
+      - id: ruff-format
+
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v3.1.0
+    hooks:
+      # Formatter for Markdown, JSON, YAML, and other non-Python files
+      - id: prettier
+        additional_dependencies:
+          # The pre-commit mirror doesn't update prettier anymore,
+          # so need to specify real version like this
+          - prettier@3.8.1
+
+  - repo: https://github.com/adrienverge/yamllint
+    rev: v1.38.0
+    hooks:
+      - id: yamllint
+        args: ["-d", "{extends: default, rules: {line-length: {max: 120}}}"]

CONTRIBUTING.md

@@ -1,5 +1,23 @@
 If you would like to contribute to this project...
 
+## Developer Setup
+
+### Pre-commit hooks
+
+This project uses [prek](https://prek.j178.dev) to manage git pre-commit hooks (a fast, Rust-based drop-in for `pre-commit`).
+
+Install prek from the [releases page](https://github.com/j178/prek/releases), then install the hooks into your local clone:
+
+```bash
+prek install
+```
+
+After that, ruff linting and formatting checks run automatically on every `git commit`. To run all hooks manually at any time:
+
+```bash
+prek run --all-files
+```
+
 **Thank you, any suggestions and / or contributions are very appreciated**
 
 If you would like to suggest a change, please go to the issues tab and fill out and issue. If you would like to contribute with code, follow the steps below:

SPRINTLOG.md

@@ -526,3 +526,4 @@ _Empty sprint_
 - Configure Renovate ([#876](https://github.com/ScilifelabDataCentre/dds_cli/pull/876))
 - replace click-pathlib dependency with `click.Path(path_type=pathlib.Path)`([#926](https://github.com/ScilifelabDataCentre/dds_cli/pull/926))
 - Switch from pylint+black to ruff([#927](https://github.com/ScilifelabDataCentre/dds_cli/pull/927))
+- Add pre-commit config to repository ([#932](https://github.com/ScilifelabDataCentre/dds_cli/pull/932))