angular-ide/lib/downloadIDE.js

Provides a seamless integration with the Angular IDE from the command-line for developers looking for an enhanced development experience with Angular.

const fs = require('fs');

const path = require('path');
const Rx = require('rxjs');

const ProgressBar = require('./progress-bar');

const chalk = require('chalk');

const url = require('url');

const { DownloaderHelper } = require('node-downloader-helper');

const IDE_COMPRESSED_FILE = 'angular_ide';


function urlBuilder(osType, arch) {
  const ideURLBase = 'https://www.genuitec.com/products/webclipse/download/angularide';
  
  const downloadURL = url.parse(ideURLBase);
  let osArch = null;

  switch (osType) {
    case 'Linux':
      if (arch === 'x64') {
        osArch = 'linux.gtk.x86_64';
      } else {
        osArch = 'linux.gtk.x86';
      }
      break;
    case 'Darwin':
      osArch = 'macosx.cocoa.x86_64';
      break;
    case 'Windows_NT':
      if (arch === 'x64') {
        osArch = 'win32.win32.x86_64';
      } else {
        osArch = 'win32.win32.x86';
      }
      break;
    default:
  }

  downloadURL.query = { os: osArch };

  return url.format(downloadURL);
}

module.exports = function (osType, arch) {
  const SIMULTANEOUS_DOWNLOADS = 3;

  const fStat = Rx.Observable.bindNodeCallback(fs.stat);

  const downloadOptions = {
    url: urlBuilder(osType, arch),
    path: path.resolve(IDE_COMPRESSED_FILE),
    range: SIMULTANEOUS_DOWNLOADS,
  };

  return Rx.Observable.create((obs) => {

    const bar = new ProgressBar('Downloading...:bar :completed%');

    const dl = new DownloaderHelper(downloadOptions.url, process.cwd(), {
      fileName: IDE_COMPRESSED_FILE,
      override: true,
    });
    dl.on('download', () => bar.update(0, 100));

    dl.on('error', (e) => console.log(e));

    dl.on('progress', (stats) => {    
      bar.update(stats.progress, 100);
    });

    dl.on('end', () => {
      bar.complete();
      obs.next(downloadOptions.path);
      obs.complete();
    });

    dl.resume();
  });

};