ember-cli-sass
ember-cli-sass uses libsass to preprocess your ember-cli app's files and provides support for source maps and include paths. It provides support for the common use case for Ember.js projects:
- Source maps by default in development
- Support for
outputPaths
configuration - Provides the ability to specify include paths
Installation
npm install --save-dev ember-cli-sass
Usage
By default this addon will compile app/styles/app.scss
or app/styles/app.sass
into dist/assets/app.css
and produce
a source map for your delectation.
If you want more control then you can specify options using the
sassOptions
config property in ember-cli-build.js
(or in Brocfile.js
if you are using an Ember CLI version older than 1.13):
var app = new EmberApp({
sassOptions: {...}
});
includePaths
: an array of include pathssourceMap
: controls whether to generate sourceMaps, defaults totrue
in development. The sourceMap file will be saved tooptions.outputFile + '.map'
extension
: specifies the file extension for the input files, defaults toscss
- See broccoli-sass-source-maps for a list of other supported options.
Processing multiple files
If you need to process multiple files, it can be done by configuring the output paths in your ember-cli-build.js
:
var app = new EmberApp({
outputPaths: {
app: {
css: {
'app': '/assets/application-name.css',
'themes/alpha': '/assets/themes/alpha.css'
}
}
}
});
Upgrading from a previous version
In a previous versions the sassOptions
config property was incorrectly moved to the config/environment.js
file. This usage is deprecated, and you should specify the config in the ember-cli-build.js
.
In versions of Ember CLI before 1.13 the sassOptions
config property was placed in Brocfile.js
, this has since been deprecated. If you are upgrading from an older verion of Ember CLI move your sassOptions
to ember-cli-build.js
and remove your Brocfile. For more information check out the Ember CLI Brocfile transition guide.
If you were using the inputFile
and outputFile
options, this is now done by configuring the output paths in ember-cli-build.js
.
Example
The following example assumes your bower packages are installed into bower_components/
.
Install some SASS:
bower install --save foundation
Specify some include paths in your ember-cli-build.js
:
var app = new EmberApp({
sassOptions: {
includePaths: [
'bower_components/foundation/scss'
]
}
});
Import some deps into your app.scss:
@import 'foundation'; /* import everything */
/* or just import the bits you need: @import 'foundation/functions'; */
Addon Usage
To compile SASS within an ember-cli addon, there are a few additional steps:
-
Include your styles in
addon/styles/addon.scss
. -
Ensure you've installed
ember-cli-sass
underdependencies
in yourpackage.json
. -
Define an
included
function in your app:// in your index.js module.exports = { name: 'my-addon', included: function(app) { this._super.included(app); } };
If you omit this step, it will throw the following error:
Cannot read property 'sassOptions' of undefined TypeError: Cannot read property 'sassOptions' of undefined at Class.module.exports.sassOptions (~/my-plugin/node_modules/ember-cli-sass/index.js:43:48)
-
Make sure your dummy app contains an
app.scss
-
If you run
ember build dist
, your styles fromaddon/styles/addon.scss
should appear correctly indist/assets/vendor.css
For an example of an addon that does this correctly, see ember-cli-notifications
Source Maps
Be aware that there are some issues with source maps in broccoli-sass. The source maps it generates will at least show you the source file names and line number in your dev tools. When we've got a better solution in broccoli-sass you'll be able to click through to view and update the SASS files in the dev tools \o/.