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Copy pathbabel.config.js
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75 lines (74 loc) · 2.32 KB
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const TARGETS_NODE = '12.13.0'
const TARGETS_BROWSERS = 'defaults'
// Warning! Recommended to specify used minor core-js version, like corejs: '3.6',
// instead of corejs: 3, since with corejs: 3 will not be injected modules which
// were added in minor core-js releases.
// https://github.com/zloirock/core-js/blob/master/README.md#babelpreset-env
const CORE_JS_VERSION = '3.6'
// We use the recommended babel configuration for monorepos, which is a base directory
// `babel.config.js` file, but then use a per-project `.babelrc.js` file.
// Learn more: https://babeljs.io/docs/en/config-files#monorepos
module.exports = {
presets: [
[
'@babel/preset-env',
{
targets: { node: TARGETS_NODE },
useBuiltIns: 'usage',
corejs: {
version: CORE_JS_VERSION,
// List of supported proposals: https://github.com/zloirock/core-js/blob/master/docs/2019-03-19-core-js-3-babel-and-a-look-into-the-future.md#ecmascript-proposals
proposals: true,
},
},
],
'@babel/preset-react',
'@babel/typescript',
],
plugins: [
[
'babel-plugin-module-resolver',
{
alias: {
src: './src',
},
},
],
['@babel/plugin-proposal-class-properties', { loose: true }],
[
'@babel/plugin-transform-runtime',
{
// https://babeljs.io/docs/en/babel-plugin-transform-runtime/#core-js-aliasing
// Setting the version here also requires `@babel/runtime-corejs3`
corejs: { version: 3, proposals: true },
// https://babeljs.io/docs/en/babel-plugin-transform-runtime/#version
// Transform-runtime assumes that @babel/runtime@7.0.0 is installed.
// Specifying the version can result in a smaller bundle size.
// TODO: Grab version for package.json
version: '^7.8.3',
},
],
],
overrides: [
// ** WEB PACKAGES **
{
test: ['./packages/router', './packages/web/'],
presets: [
[
'@babel/preset-env',
{
targets: {
browsers: TARGETS_BROWSERS,
},
modules: false,
},
],
],
},
],
// Do not build tests or mocks in production.
ignore:
process.env.NODE_ENV === 'production'
? [/\.test\.(js|ts)/, '**/__tests__', '**/__mocks__']
: [],
}