rsnext/packages/next/build/webpack/require-hook.ts
Guy Bedford 234e1c9601
feat: Implement webpack require hook (#21802)
This implements the compatibility require hook as per https://github.com/vercel/next.js/issues/21789.

The hook is applied at the point of webpack initialization. In addition the separate packages are exposed for the various webpack subrequires.

The test then ensures instance equality for the basic require hook from the next.js config file.

I suspect this might have bad interactions with Yarn Pnp support, but maybe we will be lucky.
2021-02-04 08:49:42 +00:00

62 lines
2.2 KiB
TypeScript

// sync injects a hook for webpack and webpack/... requires to use the internal ncc webpack version
// this is in order for userland plugins to attach to the same webpack instance as next.js
// the individual compiled modules are as defined for the compilation in bundles/webpack/packages/*
const hookPropertyMap = new Map([
['webpack', 'next/dist/compiled/webpack/webpack-lib'],
['webpack/package', 'next/dist/compiled/webpack/package'],
['webpack/package.json', 'next/dist/compiled/webpack/package'],
['webpack/lib/webpack', 'next/dist/compiled/webpack/webpack-lib'],
['webpack/lib/webpack.js', 'next/dist/compiled/webpack/webpack-lib'],
[
'webpack/lib/node/NodeEnvironmentPlugin',
'next/dist/compiled/webpack/NodeEnvironmentPlugin',
],
[
'webpack/lib/node/NodeEnvironmentPlugin.js',
'next/dist/compiled/webpack/NodeEnvironmentPlugin',
],
[
'webpack/lib/BasicEvaluatedExpression',
'next/dist/compiled/webpack/BasicEvaluatedExpression',
],
[
'webpack/lib/BasicEvaluatedExpression.js',
'next/dist/compiled/webpack/BasicEvaluatedExpression',
],
[
'webpack/lib/node/NodeTargetPlugin',
'next/dist/compiled/webpack/NodeTargetPlugin',
],
[
'webpack/lib/node/NodeTargetPlugin.js',
'next/dist/compiled/webpack/NodeTargetPlugin',
],
[
'webpack/lib/ModuleFilenameHelpers',
'next/dist/compiled/webpack/ModuleFilenameHelpers',
],
[
'webpack/lib/ModuleFilenameHelpers.js',
'next/dist/compiled/webpack/ModuleFilenameHelpers',
],
['webpack/lib/GraphHelpers', 'next/dist/compiled/webpack/GraphHelpers'],
['webpack/lib/GraphHelpers.js', 'next/dist/compiled/webpack/GraphHelpers'],
['webpack-sources', 'next/dist/compiled/webpack/sources'],
['webpack-sources/lib', 'next/dist/compiled/webpack/sources'],
['webpack-sources/lib/index', 'next/dist/compiled/webpack/sources'],
['webpack-sources/lib/index.js', 'next/dist/compiled/webpack/sources'],
])
const mod = require('module')
const resolveFilename = mod._resolveFilename
mod._resolveFilename = function (
request: string,
parent: any,
isMain: boolean,
options: any
) {
const hookResolved = hookPropertyMap.get(request)
if (hookResolved) request = hookResolved
return resolveFilename.call(mod, request, parent, isMain, options)
}