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import pkg from '../package.json' with { type: 'json' }
import babel from '@rollup/plugin-babel'
import resolve from '@rollup/plugin-node-resolve'
import commonjs from '@rollup/plugin-commonjs'
import filesize from 'rollup-plugin-filesize'
import terser from '@rollup/plugin-terser'
const buildDate = Date()
const headerLong = `/*!
* ${pkg.name} - ${pkg.description}
* @version ${pkg.version}
* ${pkg.homepage}
*
* @copyright ${pkg.author}
* @license ${pkg.license}
*
* BUILT: ${buildDate}
*/;`
const headerShort = `/*! ${pkg.name} v${pkg.version} ${pkg.license}*/;`
const getBabelConfig = (node = false) => {
let targets = pkg.browserslist
const plugins = [
[
'@babel/transform-runtime',
{
version: '^7.14.5',
regenerator: false,
useESModules: true
}
],
[
'polyfill-corejs3',
{
method: 'usage-pure'
}
]
]
if (node) {
targets = 'maintained node versions'
}
return babel({
include: 'src/**',
babelHelpers: 'runtime',
babelrc: false,
targets: targets,
presets: [
[
'@babel/preset-env',
{
modules: false,
// useBuildins and plugin-transform-runtime are mutually exclusive
// https://github.com/babel/babel/issues/10271#issuecomment-528379505
// use babel-polyfills when released
useBuiltIns: false,
bugfixes: true,
loose: true
}
]
],
plugins
})
}
// When few of these get mangled nothing works anymore
// We loose literally nothing by let these unmangled
const classes = [
'A',
'ClipPath',
'Defs',
'Element',
'G',
'Image',
'Marker',
'Path',
'Polygon',
'Rect',
'Stop',
'Svg',
'Text',
'Tspan',
'Circle',
'Container',
'Dom',
'Ellipse',
'Gradient',
'Line',
'Mask',
'Pattern',
'Polyline',
'Shape',
'Style',
'Symbol',
'TextPath',
'Use'
]
const config = (node, min, esm = false) => ({
input: node || esm ? './src/main.js' : './src/svg.js',
output: {
file: esm
? './dist/svg.esm.js'
: node
? './dist/svg.node.cjs'
: min
? './dist/svg.min.js'
: './dist/svg.js',
format: esm ? 'esm' : node ? 'cjs' : 'iife',
name: 'SVG',
sourcemap: true,
banner: headerLong,
// remove Object.freeze
freeze: false
},
treeshake: {
// property getter have no sideeffects
propertyReadSideEffects: false
},
plugins: [
resolve({ browser: !node }),
commonjs(),
getBabelConfig(node),
filesize(),
!min
? {}
: terser({
mangle: {
reserved: classes
},
output: {
preamble: headerShort
}
})
]
})
// [node, minified, esm]
const modes = [[false], [false, true], [true], [false, false, true]]
export default modes.map((m) => config(...m))
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