Development Setup

Development

Installing Olivero using Git or development release

Before starting, ensure that you are using at least the latest LTS release of Node.js, once Node.js has been installed, we recommend installing yarn

npm i -g yarn

To install the required packages use

yarn install

The repository doesn't contain compiled CSS and JavaScript files. You will have to run the following commands before the theme will work:

yarn run build:js
yarn run build:css

Working on JavaScript

When developing JavaScript locally you can use the watcher to make changes and
have them compiled as you save as well as generate source maps.

yarn run watch:js

It is also possible to build all files at once

yarn run build:js

To build source maps you need to use

yarn run watch:js-dev

For building a single file use

yarn run build:js -- --file js/responsive-details.es6.js

Working on CSS

The project uses PostCSS for compiling CSS for better browser support. CSS source files are located in the /css folder for the Post CSS version as well as the compiled version. When making changes, the patch should contain changes to the source Post CSS files .pcss.css and the .css compiled version.

See Olivero CSS coding standards: https://www.drupal.org/docs/contributed-themes/olivero/authoring-css-for...

CSS scaffolding tasks are following the logic of the JavaScript tasks:

yarn run build:css

Process sources without writing source maps.

yarn run build:css-dev

Process sources with (external) source maps.

yarn run watch:css

Watches source assets and applies a distributive task if any of the changes.

yarn run watch:css-dev

Watches source assets and apply development tasks if any of the changes.

Linting JavaScript and CSS

For linting compiled CSS use

yarn run lint:css

For JavaScript there are two separate configs you can use

yarn run lint:js

yarn run lint:js-passing

yarn run lint:js-stats