122 lines
3.2 KiB
JavaScript
122 lines
3.2 KiB
JavaScript
// taskr babel plugin with Babel 7 support
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// https://github.com/lukeed/taskr/pull/305
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const extname = require('path').extname
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const transform = require('@babel/core').transform
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const babelClientOpts = {
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presets: [
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'@babel/preset-typescript',
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[
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'@babel/preset-env',
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{
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modules: 'commonjs',
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targets: {
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esmodules: true,
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},
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loose: true,
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// This is handled by the Next.js webpack config that will run next/babel over the same code.
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exclude: [
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'transform-typeof-symbol',
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'transform-async-to-generator',
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'transform-spread',
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],
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},
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],
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['@babel/preset-react', { useBuiltIns: true }],
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],
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plugins: [
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// workaround for @taskr/esnext bug replacing `-import` with `-require(`
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// eslint-disable-next-line no-useless-concat
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'@babel/plugin-syntax-dynamic-impor' + 't',
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['@babel/plugin-proposal-class-properties', { loose: true }],
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],
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}
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const babelServerOpts = {
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presets: [
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'@babel/preset-typescript',
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['@babel/preset-react', { useBuiltIns: true }],
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[
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'@babel/preset-env',
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{
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modules: 'commonjs',
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targets: {
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node: '8.3',
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},
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loose: true,
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exclude: ['transform-typeof-symbol'],
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},
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],
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],
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plugins: [
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'@babel/plugin-proposal-optional-chaining',
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'@babel/plugin-proposal-nullish-coalescing-operator',
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'babel-plugin-dynamic-import-node',
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['@babel/plugin-proposal-class-properties', { loose: true }],
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],
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}
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module.exports = function(task) {
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// eslint-disable-next-line require-yield
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task.plugin('babel', {}, function*(
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file,
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serverOrClient,
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{ stripExtension } = {}
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) {
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// Don't compile .d.ts
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if (file.base.endsWith('.d.ts')) return
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const babelOpts =
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serverOrClient === 'client' ? babelClientOpts : babelServerOpts
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const options = {
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...babelOpts,
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plugins: [
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...babelOpts.plugins,
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// pages dir doesn't need core-js
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serverOrClient === 'client'
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? [
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'@babel/plugin-transform-runtime',
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{
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corejs: false,
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helpers: true,
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regenerator: false,
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useESModules: false,
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},
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]
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: false,
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].filter(Boolean),
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compact: true,
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babelrc: false,
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configFile: false,
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filename: file.base,
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}
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const output = transform(file.data, options)
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const ext = extname(file.base)
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// Replace `.ts|.tsx` with `.js` in files with an extension
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if (ext) {
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const extRegex = new RegExp(ext.replace('.', '\\.') + '$', 'i')
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// Remove the extension if stripExtension is enabled or replace it with `.js`
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file.base = file.base.replace(extRegex, stripExtension ? '' : '.js')
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}
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// Workaround for noop.js loading
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if (file.base === 'next-dev.js') {
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output.code = output.code.replace(
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/__REPLACE_NOOP_IMPORT__/g,
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`import('./dev/noop');`
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)
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}
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file.data = Buffer.from(setNextVersion(output.code))
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})
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}
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function setNextVersion(code) {
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return code.replace(
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/process\.env\.__NEXT_VERSION/g,
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`"${require('./package.json').version}"`
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)
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}
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