mastodon/babel.config.js

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module.exports = (api) => {
const env = api.env();
const reactOptions = {
development: false,
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runtime: 'automatic',
};
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const envOptions = {
useBuiltIns: "usage",
corejs: { version: "3.30" },
debug: false,
include: [
'transform-numeric-separator',
'transform-optional-chaining',
'transform-nullish-coalescing-operator',
'transform-class-properties',
],
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};
const plugins = [
['formatjs'],
'preval',
];
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switch (env) {
case 'production':
plugins.push(...[
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'lodash',
[
'transform-react-remove-prop-types',
{
mode: 'remove',
removeImport: true,
additionalLibraries: [
'react-immutable-proptypes',
],
},
],
'@babel/transform-react-inline-elements',
[
'@babel/transform-runtime',
{
helpers: true,
regenerator: false,
useESModules: true,
},
],
]);
break;
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case 'development':
reactOptions.development = true;
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envOptions.debug = true;
// We need Babel to not inject polyfills in dev, as this breaks `preval` files
envOptions.useBuiltIns = false;
envOptions.corejs = undefined;
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break;
}
const config = {
presets: [
'@babel/preset-typescript',
['@babel/react', reactOptions],
['@babel/env', envOptions],
],
plugins,
overrides: [
{
test: [/tesseract\.js/, /fuzzysort\.js/],
presets: [
['@babel/env', { ...envOptions, modules: 'commonjs' }],
],
},
],
};
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return config;
};