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93 lines
3.2 KiB
93 lines
3.2 KiB
4 years ago
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const path = require('path')
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const babel = require('@babel/core')
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const { isWindows } = require('@vue/cli-shared-utils')
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function genTranspileDepRegex (transpileDependencies) {
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const deps = transpileDependencies.map(dep => {
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if (typeof dep === 'string') {
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const depPath = path.join('node_modules', dep, '/')
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return isWindows
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? depPath.replace(/\\/g, '\\\\') // double escape for windows style path
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: depPath
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} else if (dep instanceof RegExp) {
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return dep.source
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}
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})
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return deps.length ? new RegExp(deps.join('|')) : null
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}
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module.exports = (api, options) => {
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const useThreads = process.env.NODE_ENV === 'production' && !!options.parallel
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const cliServicePath = path.dirname(require.resolve('@vue/cli-service'))
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const transpileDepRegex = genTranspileDepRegex(options.transpileDependencies)
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// try to load the project babel config;
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// if the default preset is used,
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// there will be a VUE_CLI_TRANSPILE_BABEL_RUNTIME env var set.
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// the `filename` field is required
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// in case there're filename-related options like `ignore` in the user config
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babel.loadPartialConfigSync({ filename: api.resolve('src/main.js') })
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api.chainWebpack(webpackConfig => {
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webpackConfig.resolveLoader.modules.prepend(path.join(__dirname, 'node_modules'))
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const jsRule = webpackConfig.module
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.rule('js')
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.test(/\.m?jsx?$/)
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.exclude
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.add(filepath => {
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// always transpile js in vue files
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if (/\.vue\.jsx?$/.test(filepath)) {
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return false
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}
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// exclude dynamic entries from cli-service
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if (filepath.startsWith(cliServicePath)) {
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return true
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}
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// only include @babel/runtime when the @vue/babel-preset-app preset is used
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if (
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process.env.VUE_CLI_TRANSPILE_BABEL_RUNTIME &&
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filepath.includes(path.join('@babel', 'runtime'))
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) {
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return false
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}
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// check if this is something the user explicitly wants to transpile
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if (transpileDepRegex && transpileDepRegex.test(filepath)) {
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return false
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}
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// Don't transpile node_modules
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return /node_modules/.test(filepath)
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})
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.end()
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.use('cache-loader')
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.loader(require.resolve('cache-loader'))
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.options(api.genCacheConfig('babel-loader', {
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'@babel/core': require('@babel/core/package.json').version,
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'@vue/babel-preset-app': require('@vue/babel-preset-app/package.json').version,
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'babel-loader': require('babel-loader/package.json').version,
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modern: !!process.env.VUE_CLI_MODERN_BUILD,
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browserslist: api.service.pkg.browserslist
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}, [
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'babel.config.js',
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'.browserslistrc'
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]))
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.end()
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if (useThreads) {
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const threadLoaderConfig = jsRule
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.use('thread-loader')
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.loader(require.resolve('thread-loader'))
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if (typeof options.parallel === 'number') {
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threadLoaderConfig.options({ workers: options.parallel })
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}
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}
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jsRule
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.use('babel-loader')
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.loader(require.resolve('babel-loader'))
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})
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}
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