potree-sdk/rollup.config.js

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: `${dir}/potree/potree.js`,
					format: 'umd',
					name: 'Potree',
					sourcemap: true,
				}
			}, {
				input: 'src/workers/BinaryDecoderWorker.js',
				output: {
					file: `${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: {
              esmodules: true, // 目标是 ES 模块
            },
          },
        ],
      ],
      exclude: 'node_modules/**', // 排除 node_modules 目录
			}),
		]
	})
}


export default builds