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FEC.gov Pattern Library

This is the collection of styles and design patterns that make up fec.gov. It is built on Fractal.

It is also viewable online at: https://fec-pattern-library.app.cloud.gov/

Installation

Make sure you are on the correct Node.js version (Currently version 8):

nvm use 8

Install dependencies:

npm install

Build the project

npm run build

Start the server

npm run start

Additional commands

Build SCSS only:

npm run build-sass

Build JavaScript only:

npm run build-js

Debugging

Since the fec-cms repository is a dependency to this pattern library, there may be discrepancies between style components that exist in fec-cms and what this repository is attempting to import.

If this happens, you may see the following error message in your terminal:

Error: File to import not found or unreadable: ./node_modules/fec-cms/fec/fec/static/scss/components/[some-component].

Parent style sheet: […]/fec-pattern-library/static/scss/styles.scss

If this happens, double-check that things you are trying to import in the pattern library actually exist in fec-cms. Look in https://github.com/18F/fec-cms/tree/develop/fec/fec/static/scss/components for the component specified by the error message. If you don’t find the component there, you can safely remove it from […]/fec-pattern-library/static/scss/styles.scss on your branch, then save and execute npm run build again. The error message should no longer appear.

Front end asset management for components

Component specific SCSS and JavaScript files are contained in the public/ folder, and compiled files and assets are be served from the public/ folder.

fec-cms git dependency

This repo depends on the fec-cms git repo as a local npm package to compile and serve front end assets for components to render correctly. Any updates on fec-cms since the initial npm install will require npm update to get the latest assets into the node_modules/fec-cms folder.

SCSS

The Gulp script (.gulpfile.js) compiles custom stylesheet of all icons classes (_icon-classes.scss) as well as all components as specified in static/scss/styles.scss. Any additional layout or component stylesheets created in fec-cms must be added to styles.scss.

JavaScript

Interactive components that rely on JS will need to have their functions intialized in static/js/init.js.

Build icons component for documentation

Update the Icons documentation page by running:

npm run build-icons-component

This command gets a list of icons and generates HTML markup for the custom documentation component. It uses static/templates/icons-component.html as a template to fill in the current list of icons from fec-cms into components/01-basics/_icons.html.

"Hack" to get documentation pages to display custom styles

Documentation pages (like documentation/02-typography.md) include hardcoded HTML to render hidden components so they can render custom FEC styles. Those components are defined in components/01-basics/*.

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Languages

  • HTML 87.1%
  • JavaScript 8.1%
  • SCSS 4.5%
  • Shell 0.3%