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rollup.config.js
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rollup.config.js
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import filesize from 'rollup-plugin-filesize';
import cleanup from 'rollup-plugin-cleanup';
import { terser } from 'rollup-plugin-terser';
import babel from 'rollup-plugin-babel';
import commonjs from 'rollup-plugin-commonjs';
const license = `/**
* @license
* MIT License
*
* Copyright (c) 2018 Goffert van Gool
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
`;
const htmlLite = ({ dest, format, uglified = false, transpiled = false }) => {
return {
input: 'src/lite-html.js',
output: { banner: license, file: dest, name: 'lite-html', format, sourcemap: true },
onwarn(warning, warn) {
if (warning.code === 'CIRCULAR_DEPENDENCY') return;
warn(warning);
},
plugins: [
transpiled &&
commonjs({
include: 'node_modules/**'
}),
transpiled &&
babel({
presets: [['env', { modules: false }]],
plugins: ['external-helpers']
}),
// Remove @license comments
!uglified &&
cleanup({
maxEmptyLines: 1,
comments: [/^[\*\s]*[^@\*\s]/]
}),
uglified &&
terser({
warnings: true,
mangle: {
module: true
},
output: { preamble: license }
}),
filesize()
].filter(Boolean)
};
};
const index = file => {
return {
input: `${file}.js`,
output: { banner: license, file: `${file}.es5.js`, format: 'iife', name: file.split('/').slice(-1)[0] },
onwarn(warning, warn) {
if (warning.code === 'THIS_IS_UNDEFINED' || warning.code === 'CIRCULAR_DEPENDENCY') return;
warn(warning);
},
plugins: [
commonjs({
include: 'node_modules/**'
}),
babel({
presets: [['env', { modules: false }]],
plugins: ['external-helpers']
}),
// Remove @license comments
cleanup({
maxEmptyLines: 1,
comments: [/^[\*\s]*[^@\*\s]/]
})
]
};
};
const config = [
htmlLite({ dest: 'lite-html.es5.js', format: 'umd', transpiled: true }),
htmlLite({ dest: 'lite-html.js', format: 'es' }),
htmlLite({ dest: 'lite-html.min.js', format: 'es', uglified: true }),
index('test/index'),
index('demo/index')
];
export default config;