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Bootstrap/build/rollup.config.js
XhmikosR c81c645394
rollup: specify generatedCode: 'es2015' (#35070)
This will make use of `const` and modern features (which we are already using in our code) in the generated rollup code.
2021-10-04 19:46:07 +03:00

58 lines
1.3 KiB
JavaScript

'use strict'
const path = require('path')
const { babel } = require('@rollup/plugin-babel')
const { nodeResolve } = require('@rollup/plugin-node-resolve')
const replace = require('@rollup/plugin-replace')
const banner = require('./banner.js')
const BUNDLE = process.env.BUNDLE === 'true'
const ESM = process.env.ESM === 'true'
let fileDest = `bootstrap${ESM ? '.esm' : ''}`
const external = ['@popperjs/core']
const plugins = [
babel({
// Only transpile our source code
exclude: 'node_modules/**',
// Include the helpers in the bundle, at most one copy of each
babelHelpers: 'bundled'
})
]
const globals = {
'@popperjs/core': 'Popper'
}
if (BUNDLE) {
fileDest += '.bundle'
// Remove last entry in external array to bundle Popper
external.pop()
delete globals['@popperjs/core']
plugins.push(
replace({
'process.env.NODE_ENV': '"production"',
preventAssignment: true
}),
nodeResolve()
)
}
const rollupConfig = {
input: path.resolve(__dirname, `../js/index.${ESM ? 'esm' : 'umd'}.js`),
output: {
banner,
file: path.resolve(__dirname, `../dist/js/${fileDest}.js`),
format: ESM ? 'esm' : 'umd',
globals,
generatedCode: 'es2015'
},
external,
plugins
}
if (!ESM) {
rollupConfig.output.name = 'bootstrap'
}
module.exports = rollupConfig