mirror of
https://github.com/terribleplan/next.js.git
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337fb6a9aa
* Use without .js for the filename. * Modify the chunk filename to add .js via webpack * Add import chunk's hash to the filename via webpack. * Remove buildId from dynamic import urls. * Make sure next-export work with dynamic imports
85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
// Based on https://github.com/airbnb/babel-plugin-dynamic-import-webpack
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// We've added support for SSR with this version
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import template from 'babel-template'
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import syntax from 'babel-plugin-syntax-dynamic-import'
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import { dirname, resolve, sep } from 'path'
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import Crypto from 'crypto'
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const TYPE_IMPORT = 'Import'
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/*
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Added "typeof require.resolveWeak !== 'function'" check instead of
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"typeof window === 'undefined'" to support dynamic impports in non-webpack environments.
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"require.resolveWeak" and "require.ensure" are webpack specific methods.
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They would fail in Node/CommonJS environments.
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*/
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const buildImport = (args) => (template(`
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(
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typeof require.resolveWeak !== 'function' ?
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new (require('next/dynamic').SameLoopPromise)((resolve, reject) => {
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eval('require.ensure = function (deps, callback) { callback(require) }')
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require.ensure([], (require) => {
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let m = require(SOURCE)
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m.__webpackChunkName = '${args.name}'
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resolve(m);
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}, 'chunks/${args.name}');
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})
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:
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new (require('next/dynamic').SameLoopPromise)((resolve, reject) => {
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const weakId = require.resolveWeak(SOURCE)
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try {
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const weakModule = __webpack_require__(weakId)
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return resolve(weakModule)
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} catch (err) {}
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require.ensure([], (require) => {
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try {
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let m = require(SOURCE)
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resolve(m)
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} catch(error) {
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reject(error)
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}
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}, 'chunks/${args.name}');
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})
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)
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`))
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export function getModulePath (sourceFilename, moduleName) {
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// resolve only if it's a local module
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const modulePath = (moduleName[0] === '.')
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? resolve(dirname(sourceFilename), moduleName) : moduleName
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const cleanedModulePath = modulePath
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.replace(/(index){0,1}\.js$/, '') // remove .js, index.js
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.replace(/[/\\]$/, '') // remove end slash
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return cleanedModulePath
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}
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export default () => ({
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inherits: syntax,
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visitor: {
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CallExpression (path, state) {
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if (path.node.callee.type === TYPE_IMPORT) {
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const moduleName = path.node.arguments[0].value
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const sourceFilename = state.file.opts.filename
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const modulePath = getModulePath(sourceFilename, moduleName)
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const modulePathHash = Crypto.createHash('md5').update(modulePath).digest('hex')
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const relativeModulePath = modulePath.replace(`${process.cwd()}${sep}`, '')
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const name = `${relativeModulePath.replace(/[^\w]/g, '_')}_${modulePathHash}`
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const newImport = buildImport({
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name
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})({
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SOURCE: path.node.arguments
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})
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path.replaceWith(newImport)
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}
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}
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}
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})
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