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ember-cli-bundlesize
Advanced tools
Make sure your Ember app stays small by testing its bundle size against a given size budget.
Make sure your Ember app stays small by testing its bundle size against a given size budget.
ember install ember-cli-bundlesize
Make sure to git add
the added config/bundlesize.js
file!
If your app uses Brotli compression and the brotli
option is set in your configuration (i.e compression: 'brotli'
), you must install the optional dependency: brotli-size
.
npm install --save-dev brotli-size
This addon lets you define buckets for your asset files (e.g. JavaScript, CSS, images), and a size budget for each bucket that all files belonging to that bucket must not exceed, e.g "max. 400KB of JavaScript after GZip compression".
Run this command to build and assert that your app does not exceed the defined limits:
ember bundlesize:test
This will create a production build of your app (so that may take a bit), and assert that all the files defined for each bucket don't exceed its limits, after compression. In case of a failure the command will exit with a non-zero exit code. So you can integrate this command into your CI workflow, and make your builds fail when the bundle size test does not pass.
If you do not want to build the app before running the tests you can disable the build by passing --build-app=false
.
If you want to use a different build directory from the default one (dist
), use --build-dir=other-dist-directory
.
After installing the addon, a config/bundlesize.js
file with a default configuration will be generated:
module.exports = {
app: {
javascript: {
pattern: 'assets/*.js',
limit: '500KB',
compression: 'gzip'
},
css: {
pattern: 'assets/*.css',
limit: '50KB',
compression: 'gzip'
}
}
};
In this example, top level is defined by app
, followed by two buckets, javascript
and css
. You can include as many apps and buckets as you wish. Each app supports multiple buckets and each bucket supports the following configuration properties:
pattern
: a glob
pattern (or array thereof) defining the files belonging to this bucketlimit
: the maximum size all files defined by pattern
may consume. you can use common size units like B
, KB
, MB
compression
: what compression type to use before comparing:
gzip
(default)brotli
: compress files using Brotlinone
: do not compress files at allTo override the location of the config path you can pass: config-path="<PATH TO CONFIG>"
See the Contributing guide for details.
FAQs
Make sure your Ember app stays small by testing its bundle size against a given size budget.
The npm package ember-cli-bundlesize receives a total of 0 weekly downloads. As such, ember-cli-bundlesize popularity was classified as not popular.
We found that ember-cli-bundlesize demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 4 open source maintainers collaborating on the project.
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