copyDraco.js

import path from "path";
import fs from "fs";
import { throws } from "assert";
import { error, info } from "console";

const pathArr = [
	{
		sourceDir: "./src/utils/draco",
		targetDir: "./dist/utils/draco",
	},
	{
		sourceDir: "./src/textures/water",
		targetDir: "./dist/textures/water",
	},
];

const copy = (sd, td) => {
	// 读取目录下的文件，返回文件名及文件类型{name: 'xxx.txt, [Symbol(type)]: 1 }
	const sourceFile = fs.readdirSync(sd, { withFileTypes: true });
	for (const file of sourceFile) {
		// 源文件 地址+文件名
		const srcFile = path.resolve(sd, file.name);
		// 目标文件
		const tagFile = path.resolve(td, file.name);
		// 文件是目录且未创建
		if (file.isDirectory() && !fs.existsSync(tagFile)) {
			fs.mkdirSync(tagFile, { recursive: true }, (err) => console.log(err));
			copy(srcFile, tagFile);
		} else if (file.isDirectory() && fs.existsSync(tagFile)) {
			// 文件时目录且已存在
			copy(srcFile, tagFile);
		}
		!file.isDirectory() && fs.copyFileSync(srcFile, tagFile, fs.constants.COPYFILE_FICLONE);
	}
};

const run = (sourceDir, targetDir) => {
	const startTime = new Date().getTime();
	console.log(!fs.existsSync(sourceDir));
	if (!fs.existsSync(sourceDir)) {
		throw error("no such file or directory");
	} else if (!fs.existsSync(targetDir)) {
		fs.mkdirSync(targetDir, { recursive: true }, (err) => console.log(err));
		copy(sourceDir, targetDir);
	} else {
		copy(sourceDir, targetDir);
	}

	const endTime = new Date().getTime();
	console.log("耗时:", ((endTime - startTime) / 1000).toFixed(2) + "s");
};
pathArr.forEach((pathItem) => {
	const { sourceDir, targetDir } = pathItem;
	fs.mkdirSync(targetDir, { recursive: true }, (err) => {
		if (err) {
			throw err;
		}
	});

	run(sourceDir, targetDir);
});