64 lines
2.7 KiB
JavaScript
64 lines
2.7 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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const plugins = [
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require.resolve('babel-plugin-add-module-exports'),
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// The class properties proposal was merged with the private fields proposal
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// into the "class fields" proposal. Babel doesn't support this combined
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// proposal yet, which includes private field, so this transform is
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// TECHNICALLY stage 2, but for all intents and purposes it's stage 3
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//
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// See https://github.com/babel/proposals/issues/12 for progress
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require.resolve('@babel/plugin-proposal-class-properties'),
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// Optional Chaining proposal is stage 3 (https://github.com/tc39/proposal-optional-chaining)
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// Need this since we are using TypeScript 3.7+
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require.resolve('@babel/plugin-proposal-optional-chaining'),
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// Nullish coalescing proposal is stage 3 (https://github.com/tc39/proposal-nullish-coalescing)
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// Need this since we are using TypeScript 3.7+
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require.resolve('@babel/plugin-proposal-nullish-coalescing-operator'),
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];
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const isTestEnv = process.env.BABEL_ENV === 'test' || process.env.NODE_ENV === 'test';
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// Only load the idx plugin in non-test environments, since it conflicts with
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// Jest's coverage mapping.
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if (!isTestEnv) {
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plugins.push(require.resolve('@kbn/elastic-idx/babel'));
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}
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module.exports = {
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presets: [require.resolve('@babel/preset-typescript'), require.resolve('@babel/preset-react')],
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plugins,
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overrides: [
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{
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// Babel 7 don't support the namespace feature on typescript code.
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// With namespaces only used for type declarations, we can securely
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// strip them off for babel on x-pack infra/siem plugins
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//
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// See https://github.com/babel/babel/issues/8244#issuecomment-466548733
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test: [
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/x-pack[\/\\]legacy[\/\\]plugins[\/\\]infra[\/\\].*[\/\\]graphql/,
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/x-pack[\/\\]legacy[\/\\]plugins[\/\\]siem[\/\\].*[\/\\]graphql/,
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],
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plugins: [[require.resolve('babel-plugin-typescript-strip-namespaces')]],
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},
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],
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};
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