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next.js/server/build/babel/plugins/handle-import.js

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// Based on https://github.com/airbnb/babel-plugin-dynamic-import-webpack
// We've added support for SSR with this version
import template from '@babel/template'
import syntax from '@babel/plugin-syntax-dynamic-import'
import { dirname, resolve, sep } from 'path'
import Crypto from 'crypto'
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const TYPE_IMPORT = 'Import'
/*
Added "typeof require.resolveWeak !== 'function'" check instead of
"typeof window === 'undefined'" to support dynamic impports in non-webpack environments.
"require.resolveWeak" and "require.ensure" are webpack specific methods.
They would fail in Node/CommonJS environments.
*/
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const buildImport = (args) => (template(`
(
Universal Webpack (#3578) * Speed up next build * Document webpack config * Speed up next build * Remove comment * Add comment * Clean up rules * Add comments * Run in parallel * Push plugins seperately * Create a new chunk for react * Don’t uglify react since it’s already uglified. Move react to commons in development * Use the minified version directly * Re-add globpattern * Move loaders into a separate variable * Add comment linking to Dan’s explanation * Remove dot * Add universal webpack * Initial dev support * Fix linting * Add changes from Arunoda's work * Made next dev works. But super slow and no HMR support. * Fix client side hot reload * Server side hmr * Only in dev * Add on-demand-entries client + hot-middleware * Add .babelrc support * Speed up on demand entries by running in parallel * Serve static generated files * Add missing config in dev * Add sass support * Add support for .map * Add cssloader config and fix .jsx support * Rename * use same defaults as css-loader. Fix linting * Add NoEmitErrorsPlugin * Add clientBootstrap * Use webpackhotmiddleware on the multi compiler * alpha.3 * Use babel 16.2.x * Fix reloading after error * Remove comment * Release 5.0.0-univeral-alpha.1 * Remove check for React 16 * Release 5.0.0-universal-alpha.2 * React hot loader v4 * Use our static file rendering machanism to serve pages. This should work well since the file path for a page is predictable. * Release 5.0.0-universal-alpha.3 * Remove optional loaders * Release 5.0.0-universal-alpha.4 * Remove clientBootstrap * Remove renderScript * Make sure pages bundles are served correctly * Remove unused import * Revert to using the same code as canary * Fix hot loader * Release 5.0.0-universal-alpha.5 * Check if externals dir exist before applying config * Add typescript support * Add support for transpiling certain packages in node_modules Thanks to @giuseppeg’s work in https://github.com/zeit/next.js/pull/3319 * Add BABEL_DISABLE_CACHE support * Make sourcemaps in production opt-in * Revert "Add support for transpiling certain packages in node_modules" This reverts commit d4b1d9babfb4b9ed4f4b12d56d52dee233e862da. In favor of a better api around this. * Support typescript through next.config.js * Remove comments * Bring back commons.js calculation * Remove unused dependencies * Move base.config.js to webpack.js * Make sure to only invalidate webpackDevMiddleware one after other. * Allow babel-loder caching by default. * Add comment about preact support * Bring back buildir replace * Remove obsolete plugin * Remove build replace, speed up build * Resolve page entries like pages/day/index.js to pages/day.js * Add componentDidCatch back * Compile to bundles * Use config.distDir everywhere * Make sure the file is an array * Remove console.log * Apply optimization to uglifyjs * Add comment pointing to source * Create entries the same way in dev and production * Remove unused and broken pagesGlobPattern * day/index.js is automatically turned into day.js at build time * Remove poweredByHeader option * Load pages with the correct path. * Release 5.0.0-universal-alpha.6 * Make sure react-dom/server can be overwritten by module-alias * Only add react-hot-loader babel plugin in dev * Release 5.0.0-universal-alpha.7 * Revert tests * Release 5.0.0-universal-alpha.10 * Make sure next/head is working properly. * Add wepack alias for 'next' back. * Make sure overriding className in next/head works * Alias react too * Add missing r * Fragment fallback has to wrap the children * Use min.js * Remove css.js * Remove wallaby.js * Release 5.0.0-universal-alpha.11 * Resolve relative to workdir instead of next * Make sure we touch the right file * Resolve next modules * Remove dotjsx removal plugins since we use webpack on the server * Revert "Resolve relative to workdir instead of next" This reverts commit a13f3e4ab565df9e2c9a3dfc8eb4009c0c2e02ed. * Externalize any locally loaded module lives outside of app dir. * Remove server aliases * Check node_modules reliably * Add symlink to next for tests * Make sure dynamic imports work locally. This is why we need it: https://github.com/webpack/webpack/blob/b545b519b2024e3f8be3041385bd326bf5d24449/lib/MainTemplate.js#L68 We need to have the finally clause in the above in __webpack_require__. webpack output option strictModuleExceptionHandling does that. * dynmaic -> dynamic * Remove webpack-node-externals * Make sure dynamic imports support SSR. * Remove css support in favor of next-css * Make sure we load path from `/` since it’s included in the path matching * Catch when ensurepage couldn’t be fulfilled for `.js.map` * Register require cache flusher for both client and server * Add comment explaining this is to facilitate hot reloading * Only load module when needed * Remove unused modules * Release 5.0.0-universal-alpha.12 * Only log the `found babel` message once * Make sure ondemand entries working correctly. Now we are just using a single instance of OnDemandEntryHandler. * Better sourcemaps * Release 5.0.0-universal-alpha.13 * Lock uglify version to 1.1.6 * Release 5.0.0-universal-alpha.14 * Fix a typo. * Introduce multi-zones support for mircofrontends * Add section on css
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new (require('next/dynamic').SameLoopPromise)((resolve, reject) => {
const weakId = require.resolveWeak(SOURCE)
try {
const weakModule = __webpack_require__(weakId)
return resolve(weakModule)
} catch (err) {}
require.ensure([], (require) => {
try {
let m = require(SOURCE)
m.__webpackChunkName = '${args.name}'
Universal Webpack (#3578) * Speed up next build * Document webpack config * Speed up next build * Remove comment * Add comment * Clean up rules * Add comments * Run in parallel * Push plugins seperately * Create a new chunk for react * Don’t uglify react since it’s already uglified. Move react to commons in development * Use the minified version directly * Re-add globpattern * Move loaders into a separate variable * Add comment linking to Dan’s explanation * Remove dot * Add universal webpack * Initial dev support * Fix linting * Add changes from Arunoda's work * Made next dev works. But super slow and no HMR support. * Fix client side hot reload * Server side hmr * Only in dev * Add on-demand-entries client + hot-middleware * Add .babelrc support * Speed up on demand entries by running in parallel * Serve static generated files * Add missing config in dev * Add sass support * Add support for .map * Add cssloader config and fix .jsx support * Rename * use same defaults as css-loader. Fix linting * Add NoEmitErrorsPlugin * Add clientBootstrap * Use webpackhotmiddleware on the multi compiler * alpha.3 * Use babel 16.2.x * Fix reloading after error * Remove comment * Release 5.0.0-univeral-alpha.1 * Remove check for React 16 * Release 5.0.0-universal-alpha.2 * React hot loader v4 * Use our static file rendering machanism to serve pages. This should work well since the file path for a page is predictable. * Release 5.0.0-universal-alpha.3 * Remove optional loaders * Release 5.0.0-universal-alpha.4 * Remove clientBootstrap * Remove renderScript * Make sure pages bundles are served correctly * Remove unused import * Revert to using the same code as canary * Fix hot loader * Release 5.0.0-universal-alpha.5 * Check if externals dir exist before applying config * Add typescript support * Add support for transpiling certain packages in node_modules Thanks to @giuseppeg’s work in https://github.com/zeit/next.js/pull/3319 * Add BABEL_DISABLE_CACHE support * Make sourcemaps in production opt-in * Revert "Add support for transpiling certain packages in node_modules" This reverts commit d4b1d9babfb4b9ed4f4b12d56d52dee233e862da. In favor of a better api around this. * Support typescript through next.config.js * Remove comments * Bring back commons.js calculation * Remove unused dependencies * Move base.config.js to webpack.js * Make sure to only invalidate webpackDevMiddleware one after other. * Allow babel-loder caching by default. * Add comment about preact support * Bring back buildir replace * Remove obsolete plugin * Remove build replace, speed up build * Resolve page entries like pages/day/index.js to pages/day.js * Add componentDidCatch back * Compile to bundles * Use config.distDir everywhere * Make sure the file is an array * Remove console.log * Apply optimization to uglifyjs * Add comment pointing to source * Create entries the same way in dev and production * Remove unused and broken pagesGlobPattern * day/index.js is automatically turned into day.js at build time * Remove poweredByHeader option * Load pages with the correct path. * Release 5.0.0-universal-alpha.6 * Make sure react-dom/server can be overwritten by module-alias * Only add react-hot-loader babel plugin in dev * Release 5.0.0-universal-alpha.7 * Revert tests * Release 5.0.0-universal-alpha.10 * Make sure next/head is working properly. * Add wepack alias for 'next' back. * Make sure overriding className in next/head works * Alias react too * Add missing r * Fragment fallback has to wrap the children * Use min.js * Remove css.js * Remove wallaby.js * Release 5.0.0-universal-alpha.11 * Resolve relative to workdir instead of next * Make sure we touch the right file * Resolve next modules * Remove dotjsx removal plugins since we use webpack on the server * Revert "Resolve relative to workdir instead of next" This reverts commit a13f3e4ab565df9e2c9a3dfc8eb4009c0c2e02ed. * Externalize any locally loaded module lives outside of app dir. * Remove server aliases * Check node_modules reliably * Add symlink to next for tests * Make sure dynamic imports work locally. This is why we need it: https://github.com/webpack/webpack/blob/b545b519b2024e3f8be3041385bd326bf5d24449/lib/MainTemplate.js#L68 We need to have the finally clause in the above in __webpack_require__. webpack output option strictModuleExceptionHandling does that. * dynmaic -> dynamic * Remove webpack-node-externals * Make sure dynamic imports support SSR. * Remove css support in favor of next-css * Make sure we load path from `/` since it’s included in the path matching * Catch when ensurepage couldn’t be fulfilled for `.js.map` * Register require cache flusher for both client and server * Add comment explaining this is to facilitate hot reloading * Only load module when needed * Remove unused modules * Release 5.0.0-universal-alpha.12 * Only log the `found babel` message once * Make sure ondemand entries working correctly. Now we are just using a single instance of OnDemandEntryHandler. * Better sourcemaps * Release 5.0.0-universal-alpha.13 * Lock uglify version to 1.1.6 * Release 5.0.0-universal-alpha.14 * Fix a typo. * Introduce multi-zones support for mircofrontends * Add section on css
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resolve(m)
} catch(error) {
reject(error)
}
}, 'chunks/${args.name}');
})
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)
`))
export function getModulePath (sourceFilename, moduleName) {
// resolve only if it's a local module
const modulePath = (moduleName[0] === '.')
? resolve(dirname(sourceFilename), moduleName) : moduleName
const cleanedModulePath = modulePath
.replace(/(index){0,1}\.js$/, '') // remove .js, index.js
.replace(/[/\\]$/, '') // remove end slash
return cleanedModulePath
}
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export default () => ({
inherits: syntax,
visitor: {
CallExpression (path, state) {
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if (path.node.callee.type === TYPE_IMPORT) {
const moduleName = path.node.arguments[0].value
const sourceFilename = state.file.opts.filename
const modulePath = getModulePath(sourceFilename, moduleName)
const modulePathHash = Crypto.createHash('md5').update(modulePath).digest('hex')
const relativeModulePath = modulePath.replace(`${process.cwd()}${sep}`, '')
const name = `${relativeModulePath.replace(/[^\w]/g, '_')}_${modulePathHash}`
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const newImport = buildImport({
name
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})({
SOURCE: path.node.arguments
})
path.replaceWith(newImport)
}
}
}
})