2018-10-02 23:11:53 +02:00
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const BABEL_ENV = process.env.BABEL_ENV || process.env.NODE_ENV || null;
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2020-01-23 15:35:49 +01:00
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let presets = [
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2018-10-02 23:11:53 +02:00
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[
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'@babel/preset-env',
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{
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2019-11-05 16:49:00 +01:00
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useBuiltIns: 'usage',
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corejs: { version: 3, proposals: true },
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2018-10-02 23:11:53 +02:00
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modules: false,
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},
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],
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];
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// include stage 3 proposals
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const plugins = [
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'@babel/plugin-syntax-import-meta',
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'@babel/plugin-proposal-class-properties',
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'@babel/plugin-proposal-json-strings',
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2019-01-09 07:20:56 +01:00
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'@babel/plugin-proposal-private-methods',
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2020-07-15 11:27:00 +02:00
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// See: https://gitlab.com/gitlab-org/gitlab/-/issues/229146
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'@babel/plugin-transform-arrow-functions',
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2021-07-15 10:43:53 +02:00
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// See: https://gitlab.com/gitlab-org/gitlab/-/issues/336216
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'@babel/plugin-proposal-optional-chaining',
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// See: https://gitlab.com/gitlab-org/gitlab/-/issues/336216
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'@babel/plugin-proposal-nullish-coalescing-operator',
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2020-01-21 22:09:01 +01:00
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'lodash',
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2018-10-02 23:11:53 +02:00
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];
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// add code coverage tooling if necessary
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if (BABEL_ENV === 'coverage') {
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plugins.push([
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'babel-plugin-istanbul',
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{
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2021-09-03 16:50:29 +02:00
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exclude: ['app/assets/javascripts/locale/**/app.js'],
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2018-10-02 23:11:53 +02:00
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},
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]);
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}
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2019-04-25 15:38:15 +02:00
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// Jest is running in node environment, so we need additional plugins
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2019-06-04 00:51:02 +02:00
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const isJest = Boolean(process.env.JEST_WORKER_ID);
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2019-04-25 15:38:15 +02:00
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if (isJest) {
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2019-02-28 12:34:47 +01:00
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plugins.push('@babel/plugin-transform-modules-commonjs');
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2019-03-05 10:07:16 +01:00
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/*
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without the following, babel-plugin-istanbul throws an error:
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2019-09-26 12:52:10 +02:00
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https://gitlab.com/gitlab-org/gitlab-foss/issues/58390
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2019-03-05 10:07:16 +01:00
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*/
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plugins.push('babel-plugin-dynamic-import-node');
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2020-01-23 15:35:49 +01:00
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presets = [
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[
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'@babel/preset-env',
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{
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targets: {
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node: 'current',
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},
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},
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],
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];
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2018-08-29 22:45:53 +02:00
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}
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2019-11-05 16:49:00 +01:00
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module.exports = { presets, plugins, sourceType: 'unambiguous' };
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