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104 lines
2.6 KiB
104 lines
2.6 KiB
// node module
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const fs = require("fs");
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const https = require("https");
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const resolve = require("path").resolve;
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const join = require("path").resolve;
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const extract = require("extract-zip");
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// 函数参数
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const dest = resolve(__dirname, "../");
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const fileName = "NeteaseCloudMusicApi-master.zip";
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const options = {
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hostname: "github.91chifun.workers.dev",
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path: `//https://github.com/Binaryify/NeteaseCloudMusicApi/archive/master.zip`,
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};
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// 完整的流程控制
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/**
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* 1. 检查本地文件是否已有
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* 2. 下载默认/指定版本的 zip 压缩包，等待下载
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* 3. 解压缩
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* 4. 进入目录安装依赖 npm install
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*/
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function fix2(number) {
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return number.toFixed(2);
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}
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async function download(options, fileName, callback) {
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return await new Promise((resolve, reject) => {
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const destPath = join(__dirname, "../" + fileName);
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// Check if exist
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if (fs.existsSync(destPath)) return resolve(destPath);
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const file = fs.createWriteStream(destPath);
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const request = https.get(options, (res) => {
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let len = res.headers && parseInt(res.headers["content-length"], 10);
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let cur = 0;
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// 1048576 - bytes in 1Megabyte
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const MEGA = 1048576;
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let total = 0;
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if (len) {
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total = len / MEGA;
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}
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if (!len) {
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console.log(
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"Downloading, but can not get content-length, please be patient."
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);
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}
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res.on("data", (chunk) => {
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if (len) {
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cur += chunk.length;
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console.log(
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`Downloading ${fix2((100.0 * cur) / len)}% ${fix2(
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cur / MEGA
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)}/${fix2(total)}mb`
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);
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}
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});
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res.on("end", () => {
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callback("Downloading complete!");
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});
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res.pipe(file);
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file.on("finish", () => {
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file.close(() => {
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callback("File wrote complete!");
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resolve(destPath);
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});
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});
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file.on("error", (err) => {
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fs.unlink(destPath);
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reject(err);
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});
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request.on("error", (err) => {
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console.log("Error: " + err.message);
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});
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});
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});
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}
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async function unzip(source, target) {
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try {
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await extract(source, {
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dir: target,
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});
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console.log("Extraction complete");
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return true;
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} catch (err) {
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// handle any errors
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if (err.message === "end of central directory record signature not found") {
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console.log("Not a full_downloaded zip file, removed!");
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fs.unlinkSync(source);
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}
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return false;
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}
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}
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// Download process
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download(options, fileName, (text) => {
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console.log(text);
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}).then((path) => {
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console.log(path);
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// Unzip process
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return unzip(path, dest);
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});
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