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next.js/build/webpack/plugins/react-loadable-plugin.js
Tim Neutkens 475b426ed1
Compile pages to .next/static directory (#4828)
* Compile pages to .next/static/<buildid>/pages/<page>

* Fix test

* Export class instead of using exports

* Use constant for static directory

* Add comment about what the middleware does
2018-07-25 13:45:42 +02:00

57 lines
1.7 KiB
JavaScript

// Implementation of this PR: https://github.com/jamiebuilds/react-loadable/pull/132
// Modified to strip out unneeded results for Next's specific use case
const url = require('url')
function buildManifest (compiler, compilation) {
let context = compiler.options.context
let manifest = {}
compilation.chunks.forEach(chunk => {
chunk.files.forEach(file => {
for (const module of chunk.modulesIterable) {
let id = module.id
let name = typeof module.libIdent === 'function' ? module.libIdent({ context }) : null
// If it doesn't end in `.js` Next.js can't handle it right now.
if (!file.match(/\.js$/) || !file.match(/^static\/chunks\//)) {
return
}
let publicPath = url.resolve(compilation.outputOptions.publicPath || '', file)
let currentModule = module
if (module.constructor.name === 'ConcatenatedModule') {
currentModule = module.rootModule
}
if (!manifest[currentModule.rawRequest]) {
manifest[currentModule.rawRequest] = []
}
manifest[currentModule.rawRequest].push({ id, name, file, publicPath })
}
})
})
return manifest
}
export class ReactLoadablePlugin {
constructor (opts = {}) {
this.filename = opts.filename
}
apply (compiler) {
compiler.hooks.emit.tapAsync('ReactLoadableManifest', (compilation, callback) => {
const manifest = buildManifest(compiler, compilation)
var json = JSON.stringify(manifest, null, 2)
compilation.assets[this.filename] = {
source () {
return json
},
size () {
return json.length
}
}
callback()
})
}
}