Package Exports
- karma-rollup-preprocessor
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (karma-rollup-preprocessor) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
Karma preprocessor to bundle ES6 modules using Rollup.
Features
- Rebundles your files when watched dependencies change
- Caches bundle output for improved performance
- Maintained with
by @jlmakes
Installation
npm install karma-rollup-preprocessor --save-devConfiguration
All the options detailed in the Rollup Documentation can be passed to rollupPreprocessor.
Example
Below is a well-founded recommendation using the Bublé ES2015 transpiler:
// karma.conf.js
module.exports = function (config) {
config.set({
files: [
'src/**/*.js',
'test/**/*.spec.js',
],
preprocessors: {
'src/**/*.js': ['rollup'],
'test/**/*.spec.js': ['rollup'],
},
rollupPreprocessor: {
plugins: [
require('rollup-plugin-buble')(),
],
format: 'iife', // helps prevent naming collisions
moduleName: '<your_project>' // required for 'iife' format
sourceMap: 'inline', // sensible for testing
},
});
};Support
Supports all Rollup plug-ins, and works on Node 0.12.x and up. Happy bundling!