Toolkit
Sky’s CSS Toolkit
For full documentation, visit https://www.sky.com/toolkit
Contents
- Goals
- Structure
- Installation
- Requirements/Dependencies
- Usage
- Contributing
- Versioning
- History
- Maintainers
Goals
- Enable teams across tribes to share common styles.
- Provide a modular approach to handling CSS/Sass components.
- Provide a single source of truth for Polaris brand guidelines.
Structure
The project consists of 3 packages:
- sky-toolkit: provides the UI and Core layers.
- sky-toolkit-core: Global styles and defaults for all projects.
- sky-toolkit-ui: Aesthetic components.
Libraries
- toolkit-react: React.js UI components built on Toolkit styles.
Installation
$ npm install sky-toolkit --save
- include Eyeglass in your build tools, or;
- set
node_modules
in yourincludedPaths
.
See sky.com/toolkit for full individual component documentation.
Requirements/Dependencies
Because of how the Toolkit loads third party dependencies (such as sass-mq), your development environment needs:
If you’re using webpack you’ll also need:
- sass-loader (3.1 or greater)
Supporting IE9+
To support IE9+, you must include the following at the top of your
index.html
/ default container view.
<!DOCTYPE html>
<!--[if IE 9 ]> <html lang="en-GB" class="ie9"> <![endif]-->
<!--[if gt IE 9 | !IE ]><!--> <html lang="en-GB"> <!--<![endif]-->
<head>
...
Compiled/Hosted Version
For rapid prototyping and static sites, you can include our latest compiled CSS
in the <head>
of your page.
<link rel="stylesheet" href="https://www.sky.com/assets/toolkit/v<version_number>/toolkit.min.css">
We strongly advise not to use this method in live projects. Use npm
installation to benefit from the Toolkit’s modularity and extensibility.
Alternatively, in Node.js, use sky-toolkit
's entry point to grab an
automatically version-controlled link which corresponds to your app's version of
Toolkit in package.json
For example:
const { cdnUrl: skyToolkit } = require('sky-toolkit');
module.exports = `
<link rel="stylesheet" href="${skyToolkit}">
<!-- Your App's Stylesheets/Assets, for example: -->
<link rel="stylesheet" href="main.css">
`;
Usage
Once installed, there are 2 methods of Toolkit implementation:
- Hybrid (Recommended)
- Sass Imports
Hybrid
A combination of compiled and Sass implementation:
- Importing
sky-toolkit-core
via a CDN allows for caching across the estate, allowing for performance benefits as well as greater code consistency. If you're using Node.js, versioning is automatically taken care of via the entry point. - Importing
sky-toolkit-ui
modularly via Sass avoids unused CSS bloat.
Set-up
-
Require
sky-toolkit-core
's compiled module into your layout/template which houses the<head>
for your application.It must be the first stylesheet defined:
-
Node.js - utilise the entry point to grab an automatically version-controlled link which corresponds to your app's version of Toolkit in
package.json
. For example, your template file could look like:const { skyToolkitCoreCdnUrl } = require('sky-toolkit'); module.exports = ` <link rel="stylesheet" href="${skyToolkitCoreCdnUrl}"> <!-- Your App's Stylesheets/Assets, for example: --> <link rel="stylesheet" href="main.css"> `;
-
Other languages - no such entry point exists, so you'll need to manually version the compiled Toolkit/Toolkit Core that your project uses.
<link rel="stylesheet" href="https://www.sky.com/assets/toolkit-core/v<version_number>/toolkit-core.min.css"> <!-- Your App's Stylesheets/Assets, for example: --> <link rel="stylesheet" href="main.css">
-
-
Follow the Sass Imports steps defined below, making sure you import
sky-toolkit-core/tools
, not/all
.
Sass Imports
-
In your application's main
.scss
file, includesky-toolkit-core
at the very top:-
If you're following the Hybrid method above, you must use
/tools
to utilise tools and settings and avoid outputting the core./* main.scss (compiles to main.css) */ @import "sky-toolkit-core/tools";
This is required if you're extending any Toolkit styles or creating custom components.
-
If you're not following the Hybrid method above and you're using Toolkit fully via Sass, you must use
/all
to output the core./* main.scss (compiles to main.css) */ @import "sky-toolkit-core/all";
This is required by all
sky-toolkit-ui
components / custom styles that extend Toolkit.⚠️ Do not import/all
when using the Hybrid method, as it will duplicate styles.
-
-
Following that, you can import individual
sky-toolkit-ui
components and your own project-specific styles, for example:/* main.scss (compiles to main.css) */ /* Change to `/tools` or `/all` where appropriate */ @import "sky-toolkit-core/[tools|all]"; @import "sky-toolkit-ui/components/typography"; @import "sky-toolkit-ui/components/tile"; @import "sky-toolkit-ui/components/panel"; /* Project-specific styles */ @import "components/your-component";
There is the option to import all components, however, we strongly recommend only importing the individual components required in your project.
@import "sky-toolkit-ui/all";
Contributing
We love to have people contributing, but please make sure you follow our guidelines.
Set-up
To get set up with a working development version of Toolkit, follow the steps detailed below:
# Clone the repo to your machine.
git clone git@github.com:sky-uk/toolkit.git
# Jump into your Toolkit folder.
cd toolkit
# Install common dependencies.
npm i
# Toolkit comprises several sub-packages; Lerna links them together for us.
npm i -g lerna
lerna bootstrap
# Learn more at lernajs.io
After running these commands, you should have all the relevant code and its dependencies installed and linked up ready to go…
🎨
Preview Note: further enhancements to preview can be found in #386
The fastest way to develop Toolkit components is to use Preview:
npm run preview
Running this command will fire up a hot reloading local environment that renders all of our components (WIP) onto a single page:
- Markup – sourced from fenced code blocks within Markdown from
packages/*/docs/
. - Styles - sourced from SCSS in
packages/
. Additional/experimental styles can be applied inpreview/scss/
.
Adding New Components
Note: currently only supported for
sky-toolkit-ui
components.
To render your new component in the preview environment:
Within packages/sky-toolkit-ui/
:
- Add your component's import to
_all.scss
:@import "components/<component>";
- Create a
<component>.md
withindocs/
. If you're stuck, check out the provided_template.md
.
Within preview/js/data.js
:
- Add your
'<component>'
to thecomponents
array.
Manually Compiling CSS
To manually compile changes across the packages into a single
build/toolkit.css
file, run the following command:
npm run build
Versioning
Toolkit follows Semantic Versioning to help manage the impact of releasing new library versions.
History
Before mid-June, 2017, Toolkit was split across two separate repositories:
- Toolkit Core, containing structural and architectural styles.
- Toolkit UI, containing specific, styled UI components.
After enough time, this strategy proved too cumbersome: managing the surface area and coordinating releases became a task in itself, even across only two repositories. To that end, we folded them into one—this one.
To view a complete history of many of the files, you will need to pass the
--follow
flag into your log
.
Without --follow
:
$ git log --oneline commitlint.config.js
ef54c12 build(core): added comittizen, commitlint and new lerna config
With --follow
:
$ git log --oneline --follow commitlint.config.js
bf439b3 (HEAD -> commitizen, origin/commitizen) refactor(core): change wording of commit questions
ef54c12 (squash-branch) build(core): added comittizen, commitlint and new lerna config
Maintainers
If you run into any trouble or need support getting to grips with Toolkit, reach out in Slack or contact one of the maintainers:
Joe Dinsdale |
Steve Duffin |
Sam Kitson |
Stefan McCready |
Ste Allan |
---|
Special thanks to the following contributors: