Patternlab is a dynamic organizational and prototyping tool for Drupal theming. By theming with pattern lab, your custom theme allows us to manage and build components in accordance with the required workflow using atomic design concepts1.
Using Pattern Lab for Drupal 8 Theming
Instead of rendering default Drupal templates, we can introduce pattern lab to include twig files using atomic concepts. It allows us to include external twig files by overriding the specific templates.
Steps for Installing Pattern Lab
Install Node and NPM versions using NVM
Initially we need to get the software packages from our Ubuntu repositories that will allow us to build source packages.
sudo apt-get update sudo apt-get install build-essential libssl-dev
Once these packages are installed, we can download NVM installation scripts from project’s github page.
curl -sL https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh-o install_nvm.sh
Now inspect the installation script with nano
Run the script with bash
It will install the software into a subdirectory of your home directory at ~/.nvm. It will also add the necessary lines to your ~/.profile file to use the file. To gain access to the nvm functionality, we have to run the following command:
Now we have installed NVM, our next step is to install isolated Node.js versions. To find out the available version you can type
In the output window, we can see the latest version as v8.9.4.We can install that by typing
nvm install 8.9.4
Usually NVM will be switched to latest installed version or you can tell NVM to use the just downloaded version by typing
nvm use 8.9.4
The current version of Node can be checked by running the code
If you have multiplied Node-js version, you can see what is installed by typing
If you wish to set one of the version as default, you can type
nvm alias default
Create Custom Theme (my_theme)
NOTE: It is recommended to refer Emulsify (serves as a starter kit for Drupal 8 theme) for getting the exact folder structure and architecture of the Drupal 8 theme.
It is necessary to include the JS, CSS and the fonts of the dist folder into the libraries file in the custom theme.
When NPM start is completed, node packages will be installed to the custom theme and compiles the SASS files to CSS and JS added in the patterns, which is required for the generation of theme will be saved in the dist folder.