# unplugin
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[![npm downloads][npm-downloads-src]][npm-downloads-href]
[![License][license-src]][license-href]
Unified plugin system for build tools.
Currently supports:
- [Vite ](https://vitejs.dev/ )
- [Rollup ](https://rollupjs.org/ )
- [Webpack ](https://webpack.js.org/ )
- [esbuild ](https://esbuild.github.io/ )
- [Rspack ](https://www.rspack.dev/ ) (⚠️ experimental)
## Hooks
`unplugin` extends the excellent [Rollup plugin API ](https://rollupjs.org/guide/en/#plugins-overview ) as the unified plugin interface and provides a compatible layer base on the build tools used with.
###### Supported
| Hook | Rollup | Vite | Webpack 4 | Webpack 5 | esbuild | Rspack |
| ----------------------------------------------------------------------- | :-------------: | :--: | :-------: | :-------: | :-------------: | :----: |
| [`enforce` ](https://rollupjs.org/guide/en/#enforce ) | ❌ < sup > 1</ sup > | ✅ | ✅ | ✅ | ❌ < sup > 1</ sup > | ✅ |
| [`buildStart` ](https://rollupjs.org/guide/en/#buildstart ) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [`resolveId` ](https://rollupjs.org/guide/en/#resolveid ) | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ |
| `loadInclude` < sup > 2</ sup > | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [`load` ](https://rollupjs.org/guide/en/#load ) | ✅ | ✅ | ✅ | ✅ | ✅ < sup > 3</ sup > | ✅ |
| `transformInclude` < sup > 2</ sup > | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [`transform` ](https://rollupjs.org/guide/en/#transformers ) | ✅ | ✅ | ✅ | ✅ | ✅ < sup > 3</ sup > | ✅ |
| [`watchChange` ](https://rollupjs.org/guide/en/#watchchange ) | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ |
| [`buildEnd` ](https://rollupjs.org/guide/en/#buildend ) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [`writeBundle` ](https://rollupjs.org/guide/en/#writebundle )< sup > 4</ sup > | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
1. Rollup and esbuild do not support using `enforce` to control the order of plugins. Users need to maintain the order manually.
2. Webpack's id filter is outside of loader logic; an additional hook is needed for better perf on Webpack. In Rollup and Vite, this hook has been polyfilled to match the behaviors. See for the following usage examples.
3. Although esbuild can handle both JavaScript and CSS and many other file formats, you can only return JavaScript in `load` and `transform` results.
4. Currently, `writeBundle` is only serves as a hook for the timing. It doesn't pass any arguments.
> **Warning**: The [Rspack](https://www.rspack.dev/) support is experimental. Future changes to Rspack integrations might not follow semver, please pin `unplugin` in your dependency when using. It's not recommended to use in production.
### Hook Context
###### Supported
| Hook | Rollup | Vite | Webpack 4 | Webpack 5 | esbuild | Rspack |
| -------------------------------------------------------------------------- | :----: | :--: | :-------: | :-------: | :-----: | :----: |
| [`this.parse` ](https://rollupjs.org/guide/en/#thisparse ) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [`this.addWatchFile` ](https://rollupjs.org/guide/en/#thisaddwatchfile ) | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ |
| [`this.emitFile` ](https://rollupjs.org/guide/en/#thisemitfile )< sup > 5</ sup > | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [`this.getWatchFiles` ](https://rollupjs.org/guide/en/#thisgetwatchfiles ) | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ |
| [`this.warn` ](https://rollupjs.org/guide/en/#thiswarn ) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [`this.error` ](https://rollupjs.org/guide/en/#thiserror ) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
5. Currently, [`this.emitFile` ](https://rollupjs.org/guide/en/#thisemitfile ) only supports the `EmittedAsset` variant.
## Usage
```ts
import { createUnplugin } from 'unplugin'
export const unplugin = createUnplugin((options: UserOptions) => {
return {
name: 'unplugin-prefixed-name',
// webpack's id filter is outside of loader logic,
// an additional hook is needed for better perf on webpack
transformInclude(id) {
return id.endsWith('.vue')
},
// just like rollup transform
transform(code) {
return code.replace(/< template > /, '< template > < div > Injected< / div > ')
},
// more hooks coming
}
})
export const vitePlugin = unplugin.vite
export const rollupPlugin = unplugin.rollup
export const webpackPlugin = unplugin.webpack
export const rspackPlugin = unplugin.rspack
export const esbuildPlugin = unplugin.esbuild
```
## Nested Plugins
Since `v0.10.0` , unplugin supports constructing multiple nested plugins to behave like a single one. For example:
###### Supported
| Rollup | Vite | Webpack 4 | Webpack 5 | Rspack | esbuild |
| :--------------------: | :--: | :-------: | :-------: | :----: | :------------: |
| ✅ `>=3.1` < sup > 6</ sup > | ✅ | ✅ | ✅ | ✅ | ⚠️< sup > 7</ sup > |
6. Rollup supports nested plugins since [v3.1.0 ](https://github.com/rollup/rollup/releases/tag/v3.1.0 ). Plugin author should ask users to have a Rollup version of `>=3.1.0` when using nested plugins. For single plugin format, unplugin works for any version of Rollup.
7. Since esbuild does not have a built-in transform phase, the `transform` hook of the nested plugin will not work on esbuild yet. Other hooks like `load` or `resolveId` work fine. We will try to find a way to support it in the future.
###### Usage
```ts
import { createUnplugin } from 'unplugin'
export const unplugin = createUnplugin((options: UserOptions) => {
return [
{
name: 'plugin-a',
transform(code) {
// ...
},
},
{
name: 'plugin-b',
resolveId(id) {
// ...
},
},
]
})
```
## Plugin Installation
###### Vite
```ts
// vite.config.ts
import UnpluginFeature from './unplugin-feature'
export default {
plugins: [
UnpluginFeature.vite({ /* options */ }),
],
}
```
###### Rollup
```ts
// rollup.config.js
import UnpluginFeature from './unplugin-feature'
export default {
plugins: [
UnpluginFeature.rollup({ /* options */ }),
],
}
```
###### Webpack
```ts
// webpack.config.js
module.exports = {
plugins: [
require('./unplugin-feature').webpack({ /* options */ }),
],
}
```
###### esbuild
```ts
// esbuild.config.js
import { build } from 'esbuild'
build({
plugins: [
require('./unplugin-feature').esbuild({ /* options */ }),
],
})
```
###### Rspack
```ts
// rspack.config.js
module.exports = {
plugins: [
require('./unplugin-feature').rspack({ /* options */ }),
],
}
```
### Framework-specific Logic
While `unplugin` provides compatible layers for some hooks, the functionality of it is limited to the common subset of the build's plugins capability. For more advanced framework-specific usages, `unplugin` provides an escape hatch for that.
```ts
export const unplugin = createUnplugin((options: UserOptions, meta) => {
console.log(meta.framework) // 'vite' | 'rollup' | 'webpack' | 'rspack' | 'esbuild'
return {
// Common unplugin hooks
name: 'unplugin-prefixed-name',
transformInclude(id) { /* ... */ },
transform(code) { /* ... */ },
// Framework specific hooks
vite: {
// Vite plugin
configureServer(server) {
// configure Vite server
},
// ...
},
rollup: {
// Rollup plugin
},
webpack(compiler) {
// Configure Webpack compiler
},
rspack(compiler) {
// Configure Rspack compiler
},
esbuild: {
// Change the filter of onResolve and onLoad
// onResolveFilter?: RegExp,
// onLoadFilter?: RegExp,
// Tell esbuild how to interpret the contents. By default unplugin tries to guess the loader
// from file extension (eg: .js -> "js", .jsx -> 'jsx')
// loader?: (Loader | (code: string, id: string) => Loader)
// Or you can completely replace the setup logic
// setup?: EsbuildPlugin.setup,
},
}
})
```
### Creating platform specific plugins
The package exports a set of functions in place of `createUnplugin` that allow for the creation of plugins for specific bundlers.
Each of the function takes the same generic factory argument as `createUnplugin` .
```ts
import {
createEsbuildPlugin,
createRollupPlugin,
createRspackPlugin,
createVitePlugin,
createWebpackPlugin
} from 'unplugin'
const vitePlugin = createVitePlugin({ /* options */ })
const rollupPlugin = createRollupPlugin({ /* options */ })
const esbuildPlugin = createEsbuildPlugin({ /* options */ })
const webpackPlugin = createWebpackPlugin({ /* options */ })
const rspackPlugin = createRspackPlugin({ /* options */ })
```
## Conventions
- Plugins powered by unplugin should have a clear name with `unplugin-` prefix.
- Include `unplugin` keyword in `package.json` .
- To provide better DX, packages could export 2 kinds of entry points:
- Default export: the returned value of `createUnplugin` function
```ts
import UnpluginFeature from 'unplugin-feature'
```
- Subpath exports: properties of the returned value of `createUnplugin` function for each framework users
```ts
import VitePlugin from 'unplugin-feature/vite'
```
- Refer to [unplugin-starter ](https://github.com/unplugin/unplugin-starter ) for more details about this setup.
## Starter Templates
- [unplugin/unplugin-starter ](https://github.com/unplugin/unplugin-starter )
- [jwr12135/create-unplugin ](https://github.com/jwr12135/create-unplugin )
- [sxzz/unplugin-starter ](https://github.com/sxzz/unplugin-starter )
## Community Showcases
> We have started a GitHub organization to host and collaborate on popular unplugin plugins: [github.com/unplugin](https://github.com/unplugin). You can go there to find more plugins or even join us with your own plugins!
- [unplugin-auto-import ](https://github.com/antfu/unplugin-auto-import )
- [unplugin-vue2-script-setup ](https://github.com/antfu/unplugin-vue2-script-setup )
- [unplugin-icons ](https://github.com/antfu/unplugin-icons )
- [unplugin-vue-components ](https://github.com/antfu/unplugin-vue-components )
- [unplugin-upload-cdn ](https://github.com/zenotsai/unplugin-upload-cdn )
- [unplugin-web-ext ](https://github.com/jwr12135/unplugin-web-ext )
- [unplugin-properties ](https://github.com/pd4d10/unplugin-properties )
- [unplugin-moment-to-dayjs ](https://github.com/1247748612/unplugin-moment-to-dayjs )
- [unplugin-object-3d ](https://github.com/m0ksem/unplugin-object-3d )
- [unplugin-parcel-css ](https://github.com/ssssota/unplugin-parcel-css )
- [unplugin-vue ](https://github.com/sxzz/unplugin-vue )
- [unplugin-vue-macros ](https://github.com/sxzz/unplugin-vue-macros )
- [unplugin-vue-define-options ](https://github.com/sxzz/unplugin-vue-macros/tree/main/packages/define-options )
- [unplugin-jsx-string ](https://github.com/sxzz/unplugin-jsx-string )
- [unplugin-ast ](https://github.com/sxzz/unplugin-ast )
- [unplugin-element-plus ](https://github.com/element-plus/unplugin-element-plus )
- [unplugin-glob ](https://github.com/sxzz/unplugin-glob )
- [unplugin-sentry ](https://github.com/kricsleo/unplugin-sentry )
- [unplugin-imagemin ](https://github.com/ErKeLost/unplugin-imagemin )
- [unplugin-typedotenv ](https://github.com/ssssota/typedotenv )
- [unplugin-fonts ](https://github.com/cssninjaStudio/unplugin-fonts )
- [sentry-javascript-bundler-plugins ](https://github.com/getsentry/sentry-javascript-bundler-plugins )
- [unplugin-svg-component ](https://github.com/Jevon617/unplugin-svg-component )
- [unplugin-vue-cssvars ](https://github.com/baiwusanyu-c/unplugin-vue-cssvars )
## License
[MIT ](./LICENSE ) License © 2021-PRESENT Nuxt Contrib
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