microsoft/vscode-react-native
Publicmirrored from https://github.com/microsoft/vscode-react-nativeAvailable
src/common/downloadHelper.ts
64lines · modeblame
9c71977dEzio Li2 years ago | 1 | // Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | // Licensed under the MIT license. See LICENSE file in the project root for details. | |
2a485fd5Ezio Li2 years ago | 3 | |
9c71977dEzio Li2 years ago | 4 | import * as fs from "fs"; |
| 5 | import * as https from "https"; | |
| 6 | import * as vscode from "vscode"; | |
| 7 | import { OutputChannelLogger } from "../extension/log/OutputChannelLogger"; | |
| 8 | | |
| 9 | export async function downloadFile(url: any, targetFile: any) { | |
| 10 | const logger = OutputChannelLogger.getMainChannel(); | |
| 11 | let progress = 0; | |
| 12 | let newProgress = 0; | |
| 13 | return await new Promise((resolve, reject) => { | |
| 14 | const request = https | |
| 15 | .get(url, response => { | |
| 16 | const code = response.statusCode ?? 0; | |
| 17 | | |
| 18 | if (code >= 400) { | |
| 19 | return reject(new Error(response.statusMessage)); | |
| 20 | } | |
| 21 | | |
| 22 | const file = fs.createWriteStream(targetFile); | |
| 23 | const totalLength = parseInt(response.headers["content-length"] as string, 10); | |
| 24 | | |
| 25 | response.pipe(file); | |
| 26 | response.on("data", async function (chunk) { | |
| 27 | newProgress += chunk.length; | |
| 28 | const currentProgress = | |
| 29 | parseFloat(getDownloadProgress(newProgress, totalLength)) * 100; | |
| 30 | if (currentProgress - progress >= 5) { | |
| 31 | progress = currentProgress; | |
| 32 | logger.logStream( | |
| 33 | `Current progress: ${currentProgress}%, please wait... \n`, | |
| 34 | ); | |
| 35 | } | |
| 36 | }); | |
| 37 | | |
| 38 | file.on("finish", async () => { | |
| 39 | file.close(); | |
2a485fd5Ezio Li2 years ago | 40 | logger.logStream(`Download Expo Go Completed: ${targetFile as string} \n`); |
9c71977dEzio Li2 years ago | 41 | void vscode.window.showInformationMessage("Download Expo Go Completed."); |
| 42 | }); | |
| 43 | | |
| 44 | response.on("end", function () { | |
2a485fd5Ezio Li2 years ago | 45 | resolve(() => { |
| 46 | console.log("Progress end."); | |
| 47 | }); | |
9c71977dEzio Li2 years ago | 48 | }); |
| 49 | }) | |
| 50 | .on("error", error => { | |
| 51 | reject(error); | |
| 52 | }); | |
| 53 | | |
| 54 | request.end(); | |
| 55 | }); | |
| 56 | } | |
| 57 | | |
| 58 | export async function downloadExpoGo(url: string, targetFile: string) { | |
| 59 | await downloadFile(url, targetFile); | |
| 60 | } | |
| 61 | | |
| 62 | function getDownloadProgress(currentLength: number, totalLength: number): string { | |
| 63 | return (currentLength / totalLength).toFixed(2); | |
| 64 | } |