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rollup.config.helpers.js
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rollup.config.helpers.js
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/**
* @license
* Copyright 2018 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
import {terser} from 'rollup-plugin-terser';
/**
* Returns a standardized list of browser package configuration options
* that we want to use in all our rollup files and ship to NPM.
*
* @param {string} fileName
* @param {string} preamble
* @param {boolean} visualize - produce bundle visualizations for certain
* bundles
* @param {boolean} ci is this a CI build
* @param {object} terserExtraOptions is any extra options passed to terser
*/
export function getBrowserBundleConfigOptions(
config, name, fileName, preamble, visualize, ci, terserExtraOptions = {}) {
const bundles = [];
const terserPlugin =
terser({output: {preamble, comments: false}, ...terserExtraOptions});
const extend = true;
const umdFormat = 'umd';
const fesmFormat = 'es';
// UMD ES5 minified
bundles.push(config({
plugins: [terserPlugin],
output: {
format: umdFormat,
name,
extend,
file: `dist/${fileName}.min.js`,
freeze: false
},
tsCompilerOptions: {target: 'es5'},
visualize
}));
if (ci) {
// In CI we do not build all the possible bundles.
return bundles;
}
// UMD ES5 unminified
bundles.push(config({
output: {
format: umdFormat,
name,
extend,
file: `dist/${fileName}.js`,
freeze: false
},
tsCompilerOptions: {target: 'es5'}
}));
// UMD ES2017
bundles.push(config({
output:
{format: umdFormat, name, extend, file: `dist/${fileName}.es2017.js`},
tsCompilerOptions: {target: 'es2017'}
}));
// UMD ES2017 minified
bundles.push(config({
plugins: [terserPlugin],
output: {
format: umdFormat,
name,
extend,
file: `dist/${fileName}.es2017.min.js`
},
tsCompilerOptions: {target: 'es2017'},
visualize
}));
// FESM ES2017
bundles.push(config({
output:
{format: fesmFormat, name, extend, file: `dist/${fileName}.fesm.js`},
tsCompilerOptions: {target: 'es2017'}
}));
// FESM ES2017 minified
bundles.push(config({
plugins: [terserPlugin],
output: {
format: fesmFormat,
name,
extend,
file: `dist/${fileName}.fesm.min.js`
},
tsCompilerOptions: {target: 'es2017'},
visualize
}));
return bundles;
}