rsnext/packages/next/build/webpack/plugins/serverless-plugin.ts
Tim Neutkens 210a6980d2
Solve large portion of webpack 5 deprecation warnings (#15806)
- Using `namedChunks` where possible, this will also allow for faster access to the chunks as we no longer have to look them up like we did before using `find`
- Using the new asset hooks introduced in the latest webpack beta
- Using the new externals function signature
2020-08-03 12:26:23 +00:00

52 lines
1.7 KiB
TypeScript

import { Compiler } from 'webpack'
import webpack from 'webpack'
const isWebpack5 = parseInt(webpack.version!) === 5
const GraphHelpers = isWebpack5
? undefined
: require('webpack/lib/GraphHelpers')
/**
* Makes sure there are no dynamic chunks when the target is serverless
* The dynamic chunks are integrated back into their parent chunk
* This is to make sure there is a single render bundle instead of that bundle importing dynamic chunks
*/
export class ServerlessPlugin {
apply(compiler: Compiler) {
compiler.hooks.compilation.tap('ServerlessPlugin', (compilation) => {
const hook = isWebpack5
? compilation.hooks.optimizeChunks
: compilation.hooks.optimizeChunksBasic
hook.tap('ServerlessPlugin', (chunks) => {
for (const chunk of chunks) {
// If chunk is not an entry point skip them
if (!chunk.hasEntryModule()) {
continue
}
// Async chunks are usages of import() for example
const dynamicChunks = chunk.getAllAsyncChunks()
for (const dynamicChunk of dynamicChunks) {
if (isWebpack5) {
// @ts-ignore TODO: Remove ignore when webpack 5 is stable
for (const module of compilation.chunkGraph.getChunkModulesIterable(
chunk
)) {
// Add module back into the entry chunk
chunk.addModule(module)
}
continue
}
for (const module of dynamicChunk.modulesIterable) {
// Webpack 4 has separate GraphHelpers
GraphHelpers.connectChunkAndModule(chunk, module)
}
}
}
})
})
}
}