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rollup.config.js
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rollup.config.js
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const path = require('path');
import autoprefixer from 'autoprefixer';
import babel from '@rollup/plugin-babel';
import commonjs from '@rollup/plugin-commonjs';
import json from '@rollup/plugin-json';
import merge from 'lodash.merge';
import pkg from './package.json';
import postcss from 'rollup-plugin-postcss'
import resolve from '@rollup/plugin-node-resolve';
import url from '@rollup/plugin-url';
import { terser } from 'rollup-plugin-terser';
import { eslint } from 'rollup-plugin-eslint';
const entryFile = path.resolve(__dirname, 'src', 'index.js');
const outputFile = path.resolve(__dirname, 'dist', `${pkg.name}.js`);
// Banner
const bannerData = [
`${pkg.name}`,
`v${pkg.version}`,
`${pkg.homepage}`,
`(c) ${(new Date()).getFullYear()} ${pkg.author}`,
`${pkg.license} license`
];
// Plugins
const pluginSettings = {
eslint: {
exclude: ['node_modules/**', './package.json', '**/*.scss'],
throwOnWarning: false,
throwOnError: true
},
babel: {
exclude: ['node_modules/**'],
babelHelpers: 'bundled',
presets: [
['@babel/preset-env', {
modules: false,
targets: {
browsers: ['ie >= 9']
}
}]
]
},
postcss: {
minimize: true,
plugins: [
autoprefixer()
]
},
url: {
limit: 10 * 1024, // inline files < 10k, copy files > 10k
include: ["**/*.svg"], // defaults to .svg, .png, .jpg and .gif files
emitFiles: true // defaults to true
},
terser: {
beautify: {
compress: false,
mangle: false,
output: {
beautify: true,
comments: /(?:^!|@(?:license|preserve))/
}
},
minify: {
compress: true,
mangle: true,
output: {
comments: new RegExp(pkg.name)
}
}
}
};
// Config Base
const config = {
input: entryFile,
output: {
file: outputFile,
banner: `/*!\n * ${bannerData.join('\n * ')}\n */`,
sourcemap: true
},
plugins: [
url(pluginSettings.url),
postcss(pluginSettings.postcss),
resolve(),
commonjs(),
json(),
eslint(pluginSettings.eslint),
babel(pluginSettings.babel)
],
watch: {
clearScreen: false
}
};
// Format: IIFE
const iife = merge({}, config, {
output: {
format: 'iife'
},
plugins: [
terser(pluginSettings.terser.beautify)
]
});
// Format: IIFE (Minified)
const iifeMinified = merge({}, config, {
output: {
file: iife.output.file.replace(/\.js$/, '.min.js'),
format: iife.output.format
},
plugins: [
terser(pluginSettings.terser.minify)
]
});
export default [
iife,
iifeMinified
];