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Yeoman generator for Drupal Themes - lets you quickly set up a Drupal 8 theme with sensible defaults and best practices.

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Mediacurrent Theme Generator

Yeoman generator for Drupal Themes - lets you quickly set up a Drupal 8 theme with sensible defaults and best practices.

What's New

Read the ⚡️ Changelog!

Using the Theme Generator

While the theme generator can be run anywhere, it's happiest when it's run from an empty directory you'd like to become your theme.

  • Create a new directory. Example:
themes/custom/my_awesome_theme

First a note about using Node.js via NVM

While not a requirement we like to use NVM to manage the version of Node per project. Here's a quick one liner that will install the latest stable version of Node using NVM and create a .nvmrc file.

  • Move into the new directory you created above, then run the following command:
nvm install node && node -v > .nvmrc

From now on, when working on this theme change into its directory and run nvm use and NVM will switch to the specified version for you.

Creating a new Theme

To run the theme generator type the command:

npm create yo mc-d8-theme

You should be taken through a series of questions that allow you to pick the best options for your theme.

More info if you're interested in how this stuff works:

npm create is an alias of npm init and uses npx under the hood. Find out more about npm init.

The New Theme

Support

The following is supported by your new theme.

  • Pattern Lab (Node)
  • Component-Based Workflow
  • ES6+ (With Source Maps)
  • Sass
  • Image Compression
  • Live reloading
  • Sass and JavaScript linting

The theme generator allows you to optionally add several example components.

  • Button (with variations)
  • Drupal Messages (Based off of the Classy base theme)
  • Drupal Tabs

These can include both component and Drupal templates that are added to the appropriate place during theme generation. Your theme.libraries.yml is also updated to include the relevant libraries.

Patches

We're using the beta version of Pattern Lab (Node). As you can imagine there are a few issues that come up that haven't been resolved yet. For this project we use Patch Package to patch the following issues.

There's nothing special you have to do. patch package will run after the npm install.

A Word About Commiting ./dist Files

TLDR: Don't do it if you can avoid it.

Every time Pattern Lab is rebuilt the cache busting strings will change on CSS and JS files. dependencyGraph.json will also be updated every single time which makes reviewing pull requests rather difficult.

Optimally we want to gitignore all /.dist files and run npm run build as part of a continuous integration process.

Stuff You Might Want To Change

Supported Browsers

Change what browsers your theme supports by updating browserslist within package.json. For options take a look at browserslist.

This impacts CSS browser prefixes and JavaScript compiled files.

Dummy Files

  • Swap out screenshot.png with your own theme image.
  • Remove or replace the font files in ./src/patterns/global/fonts/.
  • Change the colors in ./src/patterns/global/colors/.

Go Team

Provided by default are seven npm scripts that point to Gulp tasks. We run gulp through npm scripts so the build tools can change without the user ever knowing.

  1. Run the default build task (gulp in this instance) and everything in it. This is the equivalent to running gulp on the command line with Gulp installed globally.
npm run build
  1. Compile Sass and JS.
npm run compile
  1. Watch files and run tasks when they change.
npm run watch
  1. Compress png and svg assets.
npm run compress
  1. Build Pattern Lab.
npm run styleguide
  1. Lint Sass and JS files.
npm run lint
  1. Delete compiled Sass, JS and style guide files from the /dist directory.
npm run clean

Links

Contributing

Would you like to contribute? Want to make a few changes or fix a bug? COME ON OVER!

Clone down this repo:

git clone [email protected]:mediacurrent/theme_generator_8.git

Remove generator-mc-d8-theme if you have previously installed it:

Tip: use npm ls -g -depth=0 to see what global node modules are installed.

npm uninstall generator-mc-d8-theme -g

From the generator root directory link your local generator files to npm:

npm link

Now whenever you run yo mc-d8-theme it'll use your locally cloned mc-d8-theme generator. Any updates done to the generator can be tested in real time.

Break off a feature branch dive right in. After you've got something you'd like to add, push back to the repo and pull request against develop.

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Yeoman generator for Drupal Themes - lets you quickly set up a Drupal 8 theme with sensible defaults and best practices.

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