Rollup is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application
Getting Started
- Create
copyFilefunction-
nameis the name of your plugin -
targetsarray of src and dest -
hookit isbuildEnd(execute after bundling) orbuildStart(execute before bundling)
-
const copyFile = (options = {}) => {
const { targets = [], hook = 'buildEnd' } = options
return {
name: 'copy-file',
[hook]: async() => {
}
}
}
- Copy file implementations
- Lets add dependencies and add some codes
- Since
targetsis array let's loop thru each target - when
target.destis not exist create the directory - then copy and override the file if exist
- now we can exports our copyFile plugin
const { basename, join } = require('path')
const fs = require('fs/promises')
...
[hook]: () => {
targets.forEach(async target => {
await fs.mkdir(target.dest, { recursive: true })
const destPath = join(target.dest, basename(target.src))
await fs.copyFile(target.src, destPath)
})
}
...
module.exports = copyFile
- Create
rollup.config.jsand use our copyFile plugin
const copyFile = require('./plugin')
export default {
input: './src/index.js',
plugins: [
copyFile({
targets: [
{ src: './index.html', dest: 'dist' }
]
})
],
output: {
file: './dist/index.js',
format: 'es'
}
}
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