12d0125024
Co-authored-by: spalger <spalger@users.noreply.github.com> Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
62 lines
2.2 KiB
JavaScript
62 lines
2.2 KiB
JavaScript
/*
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* Licensed to Elasticsearch B.V. under one or more contributor
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* license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright
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* ownership. Elasticsearch B.V. licenses this file to you under
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* the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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module.exports = (_, options = {}) => {
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return {
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presets: [
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[
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require.resolve('@babel/preset-env'),
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{
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targets: {
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// only applies the necessary transformations based on the
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// current node.js processes version. For example: running
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// `nvm install 8 && node ./src/cli` will run kibana in node
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// version 8 and babel will stop transpiling async/await
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// because they are supported in the "current" version of node
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node: 'current',
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},
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// replaces `import "core-js/stable"` with a list of require statements
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// for just the polyfills that the target versions don't already supply
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// on their own
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useBuiltIns: 'entry',
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modules: 'cjs',
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// right now when using `corejs: 3` babel does not use the latest available
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// core-js version due to a bug: https://github.com/babel/babel/issues/10816
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// Because of that we should use for that value the same version we install
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// in the package.json in order to have the same polyfills between the environment
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// and the tests
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corejs: '3.2.1',
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...(options['@babel/preset-env'] || {}),
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},
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],
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require('./common_preset'),
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],
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plugins: [
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[
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require.resolve('babel-plugin-transform-define'),
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{
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'global.__BUILT_WITH_BABEL__': 'true',
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},
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],
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],
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};
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};
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