Add pre-commit configuration to run formatter automatically

.pre-commit-config.yaml

@@ -0,0 +1,8 @@
+repos:
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: 'v3.1.0'
+    hooks:
+      - id: prettier
+        additional_dependencies:
+          - [email protected]
+          - [email protected]

README.md

@@ -4,15 +4,19 @@ This repository contains components to display data from `kiara`, and to help in
 
 ## Developing
 
-Clone this repository using git. Install operating system dependenices [NodeJS](https://nodejs.org/) and npm, then.
+Clone this repository using git. Install operating system dependenices [NodeJS](https://nodejs.org/) and npm, then:
 
 ```bash
 npm install  # install project dependencies, first time only
 npm run dev
 ```
 
+Alternatively, if you have the [`just`](https://github.com/casey/just) task runner installed, run `just setup`.
+
 Everything inside `src/lib` is part of the component library, everything inside `src/routes` is the showcase or preview app.
 
+Optionally (but please do if you can) there's a [pre-commit](https://pre-commit.com/) hook to check formatting before each commit. You'll need [pre-commit installed globally](https://pre-commit.com/#installation) on your machine, then run `pre-commit install` to enable the hook.
+
 ## Testing
 
 The project is set up to enable "unit" testing via [vitest](https://vitest.dev/), and browser/UI testing via [playwright](https://playwright.dev/). Run the tests with:

justfile

@@ -12,6 +12,7 @@ setup:
     npm --version
     npm install
     npx playwright install
+    pre-commit install
 
 # Update all project dependencies
 update-deps: