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Upgrade to Babel 7 stable (#5042) (major)
🎉 https://twitter.com/left_pad/status/1034204330352500736
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35
package.json
35
package.json
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@ -42,6 +42,11 @@
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"prepublish": "npm run release",
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"precommit": "lint-staged"
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},
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"taskr": {
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"requires": [
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"./taskfile-babel.js"
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]
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},
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"standard": {
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"parser": "babel-eslint",
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"ignore": [
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@ -57,17 +62,17 @@
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"bin/*": "standard"
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},
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"dependencies": {
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"@babel/core": "7.0.0-rc.1",
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"@babel/plugin-proposal-class-properties": "7.0.0-rc.1",
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"@babel/plugin-proposal-object-rest-spread": "7.0.0-rc.1",
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"@babel/plugin-syntax-dynamic-import": "7.0.0-rc.1",
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"@babel/plugin-transform-react-jsx-source": "7.0.0-rc.1",
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"@babel/plugin-transform-runtime": "7.0.0-rc.1",
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"@babel/preset-env": "7.0.0-rc.1",
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"@babel/preset-react": "7.0.0-rc.1",
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"@babel/runtime": "7.0.0-rc.1",
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"@babel/runtime-corejs2": "7.0.0-rc.1",
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"@babel/template": "7.0.0-rc.1",
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"@babel/core": "7.0.0",
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"@babel/plugin-proposal-class-properties": "7.0.0",
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"@babel/plugin-proposal-object-rest-spread": "7.0.0",
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"@babel/plugin-syntax-dynamic-import": "7.0.0",
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"@babel/plugin-transform-react-jsx-source": "7.0.0",
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"@babel/plugin-transform-runtime": "7.0.0",
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"@babel/preset-env": "7.0.0",
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"@babel/preset-react": "7.0.0",
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"@babel/runtime": "7.0.0",
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"@babel/runtime-corejs2": "7.0.0",
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"@babel/template": "7.0.0",
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"ansi-html": "0.0.7",
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"autodll-webpack-plugin": "0.4.2",
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"babel-core": "7.0.0-bridge.0",
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@ -113,16 +118,15 @@
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"write-file-webpack-plugin": "4.3.2"
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},
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"devDependencies": {
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"@babel/preset-flow": "7.0.0-rc.1",
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"@taskr/babel": "1.1.0-next.1",
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"@babel/preset-flow": "7.0.0",
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"@taskr/clear": "1.1.0",
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"@taskr/esnext": "1.1.0",
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"@taskr/watch": "1.1.0",
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"@zeit/next-css": "0.2.1-canary.1",
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"@zeit/next-sass": "0.2.1-canary.1",
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"@zeit/next-typescript": "1.1.0",
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"babel-eslint": "8.2.2",
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"babel-jest": "21.2.0",
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"babel-eslint": "9.0.0",
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"babel-jest": "23.4.2",
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"benchmark": "2.1.4",
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"cheerio": "0.22.0",
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"chromedriver": "2.32.3",
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@ -131,6 +135,7 @@
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"cross-env": "5.0.5",
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"express": "4.15.5",
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"fkill": "5.1.0",
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"flatten": "1.0.2",
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"flow-bin": "0.73.0",
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"get-port": "3.2.0",
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"husky": "0.14.3",
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65
taskfile-babel.js
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65
taskfile-babel.js
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// taskr babel plugin with Babel 7 support
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// https://github.com/lukeed/taskr/pull/305
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'use strict'
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const transform = require('@babel/core').transform
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const flatten = require('flatten')
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const BABEL_REGEX = /(^@babel\/)(preset|plugin)-(.*)/i
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function getBabels () {
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const pkg = require('./package.json')
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return flatten(
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['devDependencies', 'dependencies'].map(s => Object.keys(pkg[s] || {}))
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).filter(s => BABEL_REGEX.test(s))
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}
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module.exports = function (task) {
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let cache
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task.plugin('babel', {}, function * (file, opts) {
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if (opts.preload) {
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delete opts.preload
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// get dependencies
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cache = cache || getBabels()
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// attach any deps to babel's `opts`
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cache.forEach(dep => {
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const segs = BABEL_REGEX.exec(dep)
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const type = `${segs[2]}s`
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const name = `@babel/${segs[2]}-${segs[3]}`
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opts[type] = opts[type] || []
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// flatten all (advanced entries are arrays)
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if (flatten(opts[type]).indexOf(name) === -1) {
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opts[type] = opts[type].concat(name)
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}
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})
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}
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// attach file's name
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opts.filename = file.base
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const output = transform(file.data, opts)
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if (output.map) {
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const map = `${file.base}.map`
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// append `sourceMappingURL` to original file
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if (opts.sourceMaps !== 'both') {
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output.code += Buffer.from(`\n//# sourceMappingURL=${map}`)
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}
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// add sourcemap to `files` array
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this._.files.push({
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base: map,
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dir: file.dir,
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data: Buffer.from(JSON.stringify(output.map))
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})
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}
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// update file's data
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file.data = Buffer.from(output.code)
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})
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}
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