@electron/get/dist/GotDownloader.js

Utility for downloading artifacts from different versions of Electron

import got, { HTTPError } from 'got';
import fs from 'graceful-fs';
import path from 'node:path';
import ProgressBar from 'progress';
const PROGRESS_BAR_DELAY_IN_SECONDS = 30;
/**
 * Default {@link Downloader} implemented with {@link https://npmjs.com/package/got | `got`}.
 * @category Downloader
 */
export class GotDownloader {
    async download(url, targetFilePath, options) {
        if (!options) {
            options = {};
        }
        const { quiet, getProgressCallback, ...gotOptions } = options;
        let downloadCompleted = false;
        let bar;
        let progressPercent;
        let timeout = undefined;
        await fs.promises.mkdir(path.dirname(targetFilePath), { recursive: true });
        const writeStream = fs.createWriteStream(targetFilePath);
        if (!quiet || !process.env.ELECTRON_GET_NO_PROGRESS) {
            const start = new Date();
            timeout = setTimeout(() => {
                if (!downloadCompleted) {
                    bar = new ProgressBar(`Downloading ${path.basename(url)}: [:bar] :percent ETA: :eta seconds `, {
                        curr: progressPercent,
                        total: 100,
                    });
                    // https://github.com/visionmedia/node-progress/issues/159
                    // eslint-disable-next-line @typescript-eslint/no-explicit-any
                    bar.start = start;
                }
            }, PROGRESS_BAR_DELAY_IN_SECONDS * 1000);
        }
        await new Promise((resolve, reject) => {
            const downloadStream = got.stream(url, gotOptions);
            downloadStream.on('downloadProgress', async (progress) => {
                progressPercent = progress.percent;
                if (bar) {
                    bar.update(progress.percent);
                }
                if (getProgressCallback) {
                    await getProgressCallback(progress);
                }
            });
            downloadStream.on('error', (error) => {
                if (error instanceof HTTPError && error.response.statusCode === 404) {
                    error.message += ` for ${error.response.url}`;
                }
                if (writeStream.destroy) {
                    writeStream.destroy(error);
                }
                reject(error);
            });
            writeStream.on('error', (error) => reject(error));
            writeStream.on('close', () => resolve());
            downloadStream.pipe(writeStream);
        });
        downloadCompleted = true;
        if (timeout) {
            clearTimeout(timeout);
        }
    }
}
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