potree-sdk/rollup.config.js

//import { base64 } from "./util/import-base-64.js";   //add



const fs = require('fs-extra')
const path = require('path')
const babel = require('rollup-plugin-babel');
const { uglify } = require('rollup-plugin-uglify');

const PATH = `./.laser-lib-path`
const buildPaths = [
	`build`,
	...fs.existsSync(PATH) ? [fs.readFileSync(PATH).toString()] : []
]

const builds = []

for (const dir of buildPaths) {
	builds.push(
		...[
			{
				input: 'src/Potree.js',
				treeshake: false,
				output: {
					file: `${dir}/potree/potree.js`,
					format: 'umd',
					name: 'Potree',
					sourcemap: true,
				},
                //plugins: [//add
                //    base64({ include: "**/*.wasm" })
                //]
			}, {
				input: 'src/workers/BinaryDecoderWorker.js',
				output: {
					file: `${dir}/potree/workers/BinaryDecoderWorker.js`,
					format: 'es',
					name: 'Potree',
					sourcemap: false
				}
			},{
				input: 'src/modules/loader/2.0/DecoderWorker.js',
				output: {
					file: `${dir}/potree/workers/2.0/DecoderWorker.js`,
					format: 'es',
					name: 'Potree',
					sourcemap: false
				}
			},{
				input: 'src/modules/loader/2.0/DecoderWorker_brotli.js',
				output: {
					file: `${dir}/potree/workers/2.0/DecoderWorker_brotli.js`,
					format: 'es',
					name: 'Potree',
					sourcemap: false
				}
			}
		]
	)
}

if (process.env.npm_lifecycle_script.includes('production')) {
	builds.forEach(item => {
		item.output.sourcemap = false
		item.plugins = [
			[
				 '@babel/plugin-transform-runtime',
			],           
			babel({
				presets: ['@babel/preset-env'],
				exclude: "node_modules/**"
			}),
			// 压缩代码
			uglify()
		]
	})
} else {
	builds.forEach(item => {
		item.plugins = [       
			babel({
				presets: [
					[
						'@babel/preset-env',
						{
							targets: {
								// 仅转换到支持 ES6 特性的环境
								esmodules: true,
								browsers: [
									"last 2 Chrome versions",
									"last 2 Firefox versions",
									"last 2 Safari versions",
									"last 2 Edge versions"
								]
							},
							// 禁用将现代代码转换为 ES5 的功能
							exclude: ["transform-regenerator", "transform-async-to-generator"]
						},
					],
				],
				exclude: 'node_modules/**', // 排除 node_modules 目录
			}),
		]
	})
}


export default builds