autoupdater.js

const os = require('os');
const { app, autoUpdater, dialog } = require('electron');

const version = app.getVersion();
const platform = `${os.platform()}_${os.arch()}`;

const updaterFeedURL = `https://package-gui.herokuapp.com/update/${platform}/${version}`;

function appUpdater() {
  autoUpdater.setFeedURL(updaterFeedURL);

  autoUpdater.on('error', err => console.log(err));
  autoUpdater.on('checking-for-update', () =>
    console.log('checking-for-update')
  );
  autoUpdater.on('update-available', () => console.log('update-available'));
  autoUpdater.on('update-not-available', () =>
    console.log('update-not-available')
  );

  // Ask the user if update is available
  autoUpdater.on('update-downloaded', (event, releaseNotes, releaseName) => {
    let message = `${app.getName()} ${releaseName} is now available. It will be installed the next time you restart the application`;
    if (releaseNotes) {
      const splitNotes = releaseNotes.split(/[^\r]\n/);
      message += '\n\nRelease notes:\n';
      splitNotes.forEach(notes => {
        message += `${notes}\n\n`;
      });
    }
    // Ask user to update the app
    dialog.showMessageBox(
      {
        type: 'question',
        buttons: ['Install and Relaunch', 'Later'],
        defaultId: 0,
        message: `A new version of ${app.getName()} has been downloaded`,
        detail: message
      },
      response => {
        if (response === 0) {
          setImmediate(() => autoUpdater.quitAndInstall());
        }
      }
    );
  });
  // init for updates
  autoUpdater.checkForUpdates();
}

exports = module.exports = {
  appUpdater
};