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rollup.config.mjs
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rollup.config.mjs
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import html from '@rollup/plugin-html'
import json from '@rollup/plugin-json'
import replace from '@rollup/plugin-replace'
import resolve from '@rollup/plugin-node-resolve'
import terser from '@rollup/plugin-terser'
import { createFilter } from '@rollup/pluginutils'
import * as sassImplementation from 'sass'
import sassFunctions from './src/scss/_functions.mjs'
import fs from 'fs'
import path from 'path'
const packageJSON = JSON.parse(fs.readFileSync('package.json'))
const banner =
`/*!
* ${packageJSON.name} v${packageJSON.version}
* (c) ${new Date().getUTCFullYear()} ${packageJSON.author.name}
* @license ${packageJSON.license}
*/`
const octiconsDataJSON = 'node_modules/@primer/octicons/build/data.json'
const octicons = ({ include, exclude, heights = [16, 24] } = {}) => {
const filter = createFilter([octiconsDataJSON])
const octiconsFilter = createFilter(include, exclude, false)
return {
name: 'octicons-data-json',
transform (code, id) {
if (!filter(id)) return
const data = JSON.parse(code)
return {
code: JSON.stringify(Object.assign({}, ...Object.keys(data).filter(key => octiconsFilter(key)).map(key => ({
[key]: {
heights: Object.assign({}, ...heights.filter(height => ({}).hasOwnProperty.call(data[key].heights, height)).map(height => ({
[height]: {
width: data[key].heights[height].width,
path: data[key].heights[height].path
}
})))
}
})))),
map: { mappings: '' }
}
}
}
}
const sass = ({ include, exclude, extensions = ['.sass', '.scss'] } = {}) => {
const filter = createFilter(include, exclude)
return {
name: 'sass',
load (id) {
if (!extensions.includes(path.extname(id)) || !filter(id)) return
return {
code: 'export default ' + JSON.stringify(sassImplementation.compile(id, {
functions: sassFunctions,
style: process.env.DEBUG ? 'expanded' : 'compressed'
}).css.toString()),
map: { mappings: '' }
}
}
}
}
const template = ({ files }) => `<!doctype html><meta charset=utf-8><title>\u200b</title><meta name=robots content=noindex><body>${files.js.map(({ fileName }) => `<script src=${fileName}></script>`).join('')}`
const plugins = [
resolve(),
octicons({
include: [
'comment-discussion',
'download',
'eye',
'heart',
'issue-opened',
'mark-github',
'package',
'play',
'repo-forked',
'repo-template',
'star'
],
heights: [16]
}),
json({
include: [octiconsDataJSON],
indent: ' ',
namedExports: false,
preferConst: true
}),
json({
exclude: [octiconsDataJSON],
indent: ' ',
namedExports: true,
preferConst: true
}),
sass(),
replace({
preventAssignment: true,
values: {
const: 'var',
let: 'var',
'process.env.NODE_ENV': `'${process.env.NODE_ENV || 'development'}'`,
'process.env.DEBUG': process.env.DEBUG || false
}
})
]
export { plugins }
export default [
{
input: 'src/container.js',
plugins,
output: [
{
format: 'cjs',
file: 'dist/buttons.common.js',
banner
},
{
format: 'es',
file: 'dist/buttons.esm.js',
banner
}
]
}, {
input: 'src/main.js',
plugins,
output: [
{
format: 'iife',
file: 'dist/buttons.js',
banner,
plugins: [
process.env.NODE_ENV !== 'production' &&
html({
fileName: 'buttons.html',
template
})
]
},
{
format: 'iife',
file: 'dist/buttons.min.js',
banner,
plugins: [
terser({
output: {
comments: /@preserve|@license|@cc_on/i
}
}),
process.env.NODE_ENV === 'production' &&
html({
fileName: 'buttons.html',
template
})
]
}
]
}
]