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DEVELOPMENT.md

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Development

Thank you very much for trying to improve our design system! To get you up on lightning speed with your contribution, here are some requirements that are needed for getting started.

TLDR;

  1. install Node.js
  2. start coding 🚀

Create a local development setup

Install Node.js

To start contributing you need Node.js installed on your machine. For macOS users, we recommend doing that with nvm a node version manager. While Windows users should go with the LTS version of Node.js.

npm (Node Package Manager) is shipped with Node.js.

Building

  1. Install npm dependencies 
    npm install
  2. Build the Barista components library 
    npm run build

Repository structure

The Barista repository has the following structure:

  • apps:
    • barista-design-system: the Barista design system.
    • components-e2e: test app to run UI/e2e tests.
    • demos: The preview app that includes all examples that get compiled and bundled for the Barista design system.
    • dev: local development app to test components.
    • fluid-dev: local development app to test web-components.
    • universal: an app to verify that the components can be used in a serverside rendered context.
  • concepts: describes some of the underlying concepts which are applied or will be applied in our Barista design system.
  • documentation: additional documentation files.
  • libs:
    • barista-components: the Barista components library source code. There's a separate library for each component.
    • examples: contains all examples of components which are used by the demo and the Barista design system app.
    • fluid-elements: The new web components.
    • shared: various shared libraries.
    • testing: helpers for writing tests.
    • tools: tooling- and ecosystem-related code like linting, releasing, etc.
    • workspace: builders, schematics and scripts needed to build libraries, create them and run them in our CI environment.
  • tools: more tooling- and ecosystem-related code for GitHub actions, style linting, etc.

Developing

Use the dev app (located in apps/dev) for development of Barista components. Start it using one of the following commands

npm run dev

Tests and stylelint

Preferrably, let the CI run all of the checks for consistency. If you really need to run these locally make sure if it needs to be run with nx by investigating the library package.

Run unit tests for the parts that are affected by your changes

# Runs affected test files:
npm run test

Unit tests with watcher for local testing

npm run nx run alert:test -- --watch

UI Tests

npm run e2e

Universal build

npm run universal

Lint

npm run lint

A11y

nx run demos:a11y

Barista examples app & Barista

To run the Barista examples app with all examples that will be used inside the Barista design system run

npm run demos

which generates all examples and starts the demos app.

If you want to run the design system itself including the demos embedded use

npm run barista