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104 | #!/usr/bin/env node
/*!
* Script to build our plugins to use them separately.
* Copyright 2020-2021 The Bootstrap Authors
* Copyright 2020-2021 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
*/
'use strict'
const path = require('path')
const rollup = require('rollup')
const glob = require('glob')
const { babel } = require('@rollup/plugin-babel')
const banner = require('./banner.js')
const srcPath = path.resolve(__dirname, '../js/src/')
const jsFiles = glob.sync(srcPath + '/**/*.js')
// Array which holds the resolved plugins
const resolvedPlugins = []
// Trims the "js" extension and uppercases => first letter, hyphens, backslashes & slashes
const filenameToEntity = filename => filename.replace('.js', '')
.replace(/(?:^|-|\/|\\)[a-z]/g, str => str.slice(-1).toUpperCase())
for (const file of jsFiles) {
resolvedPlugins.push({
src: file.replace('.js', ''),
dist: file.replace('src', 'dist'),
fileName: path.basename(file),
className: filenameToEntity(path.basename(file))
// safeClassName: filenameToEntity(path.relative(srcPath, file))
})
}
const build = async plugin => {
const globals = {}
const bundle = await rollup.rollup({
input: plugin.src,
plugins: [
babel({
// Only transpile our source code
exclude: 'node_modules/**',
// Include the helpers in each file, at most one copy of each
babelHelpers: 'bundled'
})
],
external: source => {
// Pattern to identify local files
const pattern = /^(\.{1,2})\//
// It's not a local file, e.g a Node.js package
if (!pattern.test(source)) {
globals[source] = source
return true
}
const usedPlugin = resolvedPlugins.find(plugin => {
return plugin.src.includes(source.replace(pattern, ''))
})
if (!usedPlugin) {
throw new Error(`Source ${source} is not mapped!`)
}
// We can change `Index` with `UtilIndex` etc if we use
// `safeClassName` instead of `className` everywhere
globals[path.normalize(usedPlugin.src)] = usedPlugin.className
return true
}
})
await bundle.write({
banner: banner(plugin.fileName),
format: 'umd',
name: plugin.className,
sourcemap: true,
globals,
generatedCode: 'es2015',
file: plugin.dist
})
console.log(`Built ${plugin.className}`)
}
(async () => {
try {
const basename = path.basename(__filename)
const timeLabel = `[${basename}] finished`
console.log('Building individual plugins...')
console.time(timeLabel)
await Promise.all(Object.values(resolvedPlugins).map(plugin => build(plugin)))
console.timeEnd(timeLabel)
} catch (error) {
console.error(error)
process.exit(1)
}
})()
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