Code

top / src / main

src/main/main.js · 22.6 KB · raw

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
      
'use strict';

const {
  app, BrowserWindow, ipcMain, dialog, shell, Tray, Menu, nativeImage,
} = require('electron');
const path = require('path');
const fs = require('fs');
const os = require('os');

const fp = require('./flatpak');
const ar = require('./archive');
const { runBackup, packName } = require('./backup');
const { runRestore } = require('./restore');
const applist = require('./applist');

// Where the dot looks for a newer build: Flat's downloads on Buildmorphic,
// which carry the AppImage and the `latest-linux.yml` electron-builder writes
// beside it to say which version is current. "latest" is always the newest.
const UPDATE_FEED = {
  provider: 'generic',
  url: 'https://flat.buildmorphic.com/download/latest',
};

let mainWindow = null;
let tray = null;
let busy = false;
// Set while the window is being hidden to the tray rather than closed, so
// the close handler can tell the two apart.
let reallyQuitting = false;

function createWindow() {
  mainWindow = new BrowserWindow({
    width: 1120,
    height: 760,
    minWidth: 900,
    minHeight: 620,
    backgroundColor: '#09090b',
    autoHideMenuBar: true,
    icon: path.join(__dirname, '..', '..', 'build', 'icons', '256x256.png'),
    webPreferences: {
      preload: path.join(__dirname, '..', 'preload.js'),
      contextIsolation: true,
      nodeIntegration: false,
      sandbox: false,
    },
  });

  mainWindow.loadFile(path.join(__dirname, '..', 'renderer', 'index.html'));

  // Nothing in this app is a web page. Anything that wants to be one opens
  // in the user's own browser instead of inside the window.
  mainWindow.webContents.setWindowOpenHandler(({ url }) => {
    if (/^https:\/\//.test(url)) shell.openExternal(url);
    return { action: 'deny' };
  });
  mainWindow.webContents.on('will-navigate', (event) => event.preventDefault());

  // Closing while a backup, restore or install is running hides the window
  // instead of ending the job. The tray icon is then the only thing on
  // screen, and it says how far along the job is. With nothing running,
  // closing means closing — an app that refuses to go away when you have
  // finished with it is a nuisance, not a feature.
  mainWindow.on('close', (event) => {
    if (reallyQuitting || !busy) return;
    event.preventDefault();
    mainWindow.hide();
  });

  mainWindow.on('closed', () => { mainWindow = null; });
}

// ---------------------------------------------------------------------------
// Tray
// ---------------------------------------------------------------------------

function iconPath(size) {
  return path.join(__dirname, '..', '..', 'build', 'icons', `${size}x${size}.png`);
}

function showWindow(tab) {
  if (!mainWindow || mainWindow.isDestroyed()) {
    createWindow();
    if (tab) mainWindow.webContents.once('did-finish-load', () => send('go-to-tab', tab));
    return;
  }
  if (!mainWindow.isVisible()) mainWindow.show();
  if (mainWindow.isMinimized()) mainWindow.restore();
  mainWindow.focus();
  if (tab) send('go-to-tab', tab);
}

function buildTrayMenu() {
  return Menu.buildFromTemplate([
    { label: 'All apps', click: () => showWindow('all') },
    { label: 'My apps', click: () => showWindow('mine') },
    { type: 'separator' },
    {
      label: 'Quit',
      click: () => {
        reallyQuitting = true;
        app.quit();
      },
    },
  ]);
}

function createTray() {
  // 64px rather than 22: the desktop scales it down itself, and a icon sized
  // for a standard panel comes out soft on a HiDPI screen.
  const image = nativeImage.createFromPath(iconPath(64));
  tray = new Tray(image.isEmpty() ? nativeImage.createFromPath(iconPath(32)) : image);
  tray.setToolTip('Flat');
  tray.setContextMenu(buildTrayMenu());
  // Not every Linux panel delivers a plain click, which is why the menu
  // carries every destination rather than relying on this.
  tray.on('click', () => showWindow());
}

// The tray is the only thing on screen once the window is hidden, so it has
// to say where a running job has got to.
function trayStatus(text) {
  if (tray && !tray.isDestroyed()) tray.setToolTip(text ? `Flat — ${text}` : 'Flat');
}

function send(channel, payload) {
  if (channel === 'job-progress' && payload && payload.total) {
    trayStatus(`${Math.min(payload.index + 1, payload.total)} of ${payload.total}`);
  }
  if (mainWindow && !mainWindow.isDestroyed() && !mainWindow.webContents.isDestroyed()) {
    mainWindow.webContents.send(channel, payload);
  }
}

// The menu a Linux desktop app is expected to have, and no more. Electron's
// own default carries Reload and the developer tools, and reloading halfway
// through a backup or restore would lose the job. The bar stays hidden until
// Alt is pressed, as before.
function buildAppMenu() {
  return Menu.buildFromTemplate([
    {
      label: 'File',
      submenu: [{ role: 'quit', label: 'Quit Flat' }],
    },
    {
      label: 'Edit',
      submenu: [
        { role: 'undo' }, { role: 'redo' }, { type: 'separator' },
        { role: 'cut' }, { role: 'copy' }, { role: 'paste' }, { role: 'selectAll' },
      ],
    },
    {
      label: 'View',
      submenu: [
        { label: 'All apps', accelerator: 'CmdOrCtrl+1', click: () => showWindow('all') },
        { label: 'My apps', accelerator: 'CmdOrCtrl+2', click: () => showWindow('mine') },
        { label: 'Restore', accelerator: 'CmdOrCtrl+3', click: () => showWindow('restore') },
      ],
    },
    {
      label: 'Help',
      submenu: [
        { label: 'How to use Flat', accelerator: 'F1', click: () => showWindow('help') },
        { label: 'flat.lightmorphic.com', click: () => shell.openExternal('https://flat.lightmorphic.com') },
      ],
    },
  ]);
}

app.whenReady().then(() => {
  carryOverOldSettings();
  Menu.setApplicationMenu(buildAppMenu());
  createWindow();
  createTray();
  setupUpdates();
});

// With a tray icon the app is still there after the last window goes, so
// this must not end it — but only while something is actually running.
app.on('window-all-closed', () => {
  if (!busy) app.quit();
});

// A job half way through writing or deleting a data directory must not be
// cut off. Quit is refused outright while one is running; the tray's own
// Quit item sets `reallyQuitting`, and even that waits for `busy` to clear.
app.on('before-quit', (event) => {
  if (busy) {
    event.preventDefault();
    showWindow();
  }
});

// ---------------------------------------------------------------------------
// Environment
// ---------------------------------------------------------------------------

ipcMain.handle('app-info', () => ({
  name: app.getName(),
  version: app.getVersion(),
  hostname: os.hostname(),
}));

ipcMain.handle('flatpak-probe', async () => {
  const probe = await fp.probe();
  const compressor = await ar.detectCompressor();
  return { ...probe, compression: compressor.name };
});

// ---------------------------------------------------------------------------
// Backup side
// ---------------------------------------------------------------------------

ipcMain.handle('scan-apps', async () => {
  const listed = await fp.listApps();
  if (!listed.ok) return { ok: false, error: listed.error };

  const withData = listed.apps.map((a) => {
    const hasData = fp.hasData(a.id);
    return { ...a, hasData, hasSettings: hasData && fp.hasSettings(a.id) };
  });
  const ids = withData.filter((a) => a.hasData).map((a) => a.id);

  // Both sizes for every app with a folder: the whole thing ("Full"), and
  // its settings without what it rebuilds by itself. A handful at a time, so
  // sixty apps do not all hit the disk at once.
  const sizes = {};
  const queue = [...ids];
  let done = 0;
  await Promise.all(Array.from({ length: 4 }, async () => {
    while (queue.length) {
      const id = queue.shift();
      sizes[id] = await fp.settingsSizes(id);
      done += 1;
      send('scan-progress', { done, total: ids.length });
    }
  }));

  const apps = withData.map((a) => {
    const size = sizes[a.id] || { full: 0, trimmed: 0, trimmable: false };
    return {
      ...a,
      dataBytes: size.trimmed,
      fullBytes: size.full,
      trimmable: size.trimmable,
      icon: fp.iconDataUrl(a.id),
    };
  });

  const running = await fp.runningApps();
  return { ok: true, apps, running };
});

ipcMain.handle('running-apps', async () => fp.runningApps());

ipcMain.handle('close-apps', async (event, ids) => {
  const stillRunning = [];
  for (const id of ids) {
    await fp.killApp(id);
  }
  // Give them a moment, then report what actually let go, rather than
  // claiming success and leaving a live profile to be copied.
  await new Promise((resolve) => setTimeout(resolve, 1800));
  const running = new Set(await fp.runningApps());
  for (const id of ids) if (running.has(id)) stillRunning.push(id);
  return { ok: stillRunning.length === 0, stillRunning };
});

ipcMain.handle('choose-backup-file', async () => {
  const result = await dialog.showSaveDialog(mainWindow, {
    title: 'Save the backup',
    defaultPath: path.join(app.getPath('documents') || os.homedir(), packName(os.hostname())),
    filters: [{ name: 'Flat backup', extensions: ['fmpack'] }],
    properties: ['createDirectory', 'showOverwriteConfirmation'],
  });
  if (result.canceled || !result.filePath) return { canceled: true };
  const file = result.filePath.endsWith('.fmpack') ? result.filePath : `${result.filePath}.fmpack`;
  return { canceled: false, file };
});

ipcMain.handle('run-backup', async (event, { apps, list, outFile }) => {
  if (busy) return { ok: false, error: 'Something is already running.' };
  busy = true;
  try {
    return await runBackup({ apps, list, outFile }, (progress) => {
      send('job-progress', progress);
    });
  } finally {
    busy = false;
    trayStatus(null);
  }
});




// ---------------------------------------------------------------------------
// The standing list: what is wanted on any machine
// ---------------------------------------------------------------------------

// Where a portable `flat-apps.json` is looked for. APPIMAGE is set by
// the AppImage runtime and is the path of the AppImage file itself, so its
// directory is the folder the file was downloaded into — which is where a
// list file downloaded alongside it will be.
function listSearchDirs() {
  const dirs = [];
  if (process.env.APPIMAGE) dirs.push(path.dirname(process.env.APPIMAGE));
  dirs.push(process.cwd());
  dirs.push(app.getPath('downloads'));
  return [...new Set(dirs)];
}

function listPlaces() {
  return { settingsDir: app.getPath('userData'), searchDirs: listSearchDirs() };
}

// The app was called Flatmorphic until 18 September 2026, and Electron keeps
// its settings in a folder named after the app. Without this the first run
// as Flat would open on an empty list and look as if everything had been
// lost. Copy, never move: the old folder stays until someone deletes it.
function carryOverOldSettings() {
  const here = app.getPath('userData');
  const old = path.join(app.getPath('appData'), 'Flatmorphic');
  for (const name of [applist.FILE_NAME]) {
    const from = path.join(old, name);
    const to = path.join(here, name);
    try {
      if (fs.existsSync(to) || !fs.existsSync(from)) continue;
      fs.mkdirSync(here, { recursive: true });
      fs.copyFileSync(from, to);
    } catch { /* a fresh list is the worst case, and the old file is still there */ }
  }
}

ipcMain.handle('applist-read', async () => {
  const loaded = applist.load(listPlaces());
  const installed = new Set((await fp.listApps()).apps.map((a) => a.id));
  const remotes = await fp.listRemotes();
  return {
    ...loaded,
    apps: loaded.apps.map((a) => ({ ...a, installed: installed.has(a.id) })),
    hasFlathub: remotes.some((r) => r.name === 'flathub'),
    remotes: remotes.map((r) => r.name),
    portableName: applist.PORTABLE_NAME,
  };
});

ipcMain.handle('applist-write', async (event, { apps, never }) => applist.save(listPlaces(), apps, never));

// Building the list from the machine that already has everything on it, so
// it never has to be typed out once.
ipcMain.handle('applist-from-installed', async () => {
  const listed = await fp.listApps();
  return listed.apps.map((a) => ({
    id: a.id,
    name: a.name,
    remote: a.origin || 'flathub',
  }));
});

ipcMain.handle('applist-search', async (event, term) => fp.searchApps(term));

ipcMain.handle('add-flathub', async () => {
  const result = await fp.addFlathub();
  return result.ok ? { ok: true } : { ok: false, error: result.error };
});

ipcMain.handle('applist-export', async (event, { apps, never }) => {
  const result = await dialog.showSaveDialog(mainWindow, {
    title: 'Save the app list',
    defaultPath: path.join(app.getPath('downloads') || os.homedir(), applist.PORTABLE_NAME),
    filters: [{ name: 'Flat app list', extensions: ['json'] }],
    properties: ['createDirectory', 'showOverwriteConfirmation'],
  });
  if (result.canceled || !result.filePath) return { canceled: true };
  try {
    applist.writeTo(result.filePath, apps, never);
    return { canceled: false, file: result.filePath };
  } catch (error) {
    return { canceled: false, error: error.message };
  }
});

ipcMain.handle('applist-import', async () => {
  const result = await dialog.showOpenDialog(mainWindow, {
    title: 'Open an app list',
    defaultPath: app.getPath('downloads') || os.homedir(),
    filters: [
      { name: 'Flat app list', extensions: ['json'] },
      { name: 'All files', extensions: ['*'] },
    ],
    properties: ['openFile'],
  });
  if (result.canceled || !result.filePaths.length) return { canceled: true };
  return { canceled: false, ...applist.readFrom(result.filePaths[0]) };
});

// The backup the Keep settings apps get their settings from. Looked for in
// the same places as the list file — beside the AppImage, where it was run
// from, and Downloads — newest first, because the routine on a new machine is
// "download everything into one folder and open Flat".
function findBackups() {
  const found = [];
  for (const dir of listSearchDirs()) {
    let names = [];
    try { names = fs.readdirSync(dir); } catch { continue; }
    for (const name of names) {
      if (!name.endsWith('.fmpack')) continue;
      const file = path.join(dir, name);
      try {
        const stat = fs.statSync(file);
        if (stat.isFile()) found.push({ file, mtime: stat.mtimeMs });
      } catch { /* vanished between the listing and the look */ }
    }
  }
  return found.sort((a, b) => b.mtime - a.mtime).map((f) => f.file);
}

async function describeBackup(file) {
  const read = await ar.readManifest(file);
  if (!read.ok) return { ok: false, error: read.error };
  const installed = new Set((await fp.listApps()).apps.map((a) => a.id));
  const sizes = new Map((read.manifest.apps || []).map((a) => [a.id, Number(a.data_bytes) || 0]));
  return {
    ok: true,
    file,
    name: path.basename(file),
    created: read.manifest.created,
    host: read.manifest.source_host,
    ids: (read.manifest.apps || []).map((a) => a.id),
    // Everything the backup would put on this machine, in the order it was
    // saved, and whether each one is here already.
    entries: read.manifest.list.map((e) => ({
      ...e,
      installed: installed.has(e.id),
      bytes: (sizes.get(e.id) || 0),
    })),
  };
}

ipcMain.handle('settings-backup-find', async () => {
  for (const file of findBackups()) {
    const described = await describeBackup(file);
    if (described.ok) return described;
  }
  return null;
});

ipcMain.handle('settings-backup-describe', async (event, file) => {
  if (typeof file !== 'string' || !file.endsWith('.fmpack')) return { ok: false };
  return describeBackup(file);
});

ipcMain.handle('settings-backup-choose', async () => {
  const result = await dialog.showOpenDialog(mainWindow, {
    title: 'Which backup holds the settings?',
    defaultPath: app.getPath('downloads') || os.homedir(),
    filters: [{ name: 'Flat backup', extensions: ['fmpack'] }, { name: 'All files', extensions: ['*'] }],
    properties: ['openFile'],
  });
  if (result.canceled || !result.filePaths.length) return { canceled: true };
  return { canceled: false, ...(await describeBackup(result.filePaths[0])) };
});

ipcMain.handle('install-apps', async (event, payload) => {
  const apps = Array.isArray(payload) ? payload : (payload && payload.apps) || [];
  const packFile = payload && !Array.isArray(payload) ? payload.packFile : null;
  if (busy) return { ok: false, error: 'Something is already running.' };
  busy = true;
  try {
    // Every app on the list is walked, including the ones already here.
    // Those are named and passed over rather than left out: a run that
    // silently shows fifty-nine of sixty-seven rows leaves you counting to
    // work out what happened to the other eight. Nothing stops the walk —
    // an app that is already installed, and an app that fails, both just
    // move it on to the next one.
    const wanted = applist.cleanEntries(apps);
    const installed = new Set((await fp.listApps()).apps.map((a) => a.id));
    const results = [];
    const total = wanted.length;

    for (let index = 0; index < total; index += 1) {
      const entry = wanted[index];

      if (installed.has(entry.id)) {
        results.push({ id: entry.id, name: entry.name, ok: true, skipped: true, notes: [] });
        send('job-progress', {
          index, total, appId: entry.id,
          step: 'skipped', message: `${entry.name} is already here`,
        });
        continue;
      }

      send('job-progress', {
        index, total, appId: entry.id,
        step: 'install', message: `Installing ${entry.name}`,
      });
      const outcome = await fp.installLatest(entry);
      results.push({
        id: entry.id, name: entry.name, ok: outcome.ok, skipped: false,
        error: outcome.error, notes: [],
      });
      send('job-progress', {
        index, total, appId: entry.id,
        step: outcome.ok ? 'done' : 'failed',
        message: outcome.ok ? `${entry.name} installed` : outcome.error,
      });
    }

    // Second pass: settings for the Keep settings apps. Only for apps this
    // run actually installed. An app that was already here has settings of
    // its own on this machine, and pressing Install must never be the thing
    // that overwrites them.
    const settingsNotes = {};
    let settingsRestored = 0;
    let settingsMissed = 0;
    const keepInstalledNow = wanted.filter((a) => a.keep
      && results.some((r) => r.id === a.id && r.ok && !r.skipped));

    let manifest = null;
    if (keepInstalledNow.length && packFile) {
      const read = await ar.readManifest(packFile);
      if (read.ok) manifest = read.manifest;
    }
    const inPack = new Set(manifest ? (manifest.apps || []).map((a) => a.id) : []);

    const restoreIds = [];
    for (const entry of keepInstalledNow) {
      if (!packFile || !manifest) {
        settingsNotes[entry.id] = { bad: true, text: 'Marked Keep settings, but there was no backup to take them from, so it is installed fresh.' };
        settingsMissed += 1;
      } else if (!inPack.has(entry.id)) {
        settingsNotes[entry.id] = { bad: true, text: 'Marked Keep settings, but it is not in the backup, so it is installed fresh.' };
        settingsMissed += 1;
      } else {
        restoreIds.push(entry.id);
      }
    }

    if (restoreIds.length) {
      const restored = await runRestore(
        { packFile, manifest, selection: restoreIds },
        (p) => send('job-progress', {
          index: total - 1, total, appId: p.appId,
          step: p.step === 'done' ? 'settings-done' : p.step === 'failed' ? 'settings-failed' : 'settings',
          message: p.step === 'done' || p.step === 'failed' ? p.message : `Settings: ${p.message}`,
        }),
      );
      for (const r of restored.results || []) {
        if (r.ok) {
          settingsRestored += 1;
          settingsNotes[r.id] = { bad: false, text: 'Settings brought back from the backup.' };
        } else {
          settingsMissed += 1;
          settingsNotes[r.id] = { bad: true, text: `Installed, but the settings could not be brought back: ${r.error}` };
        }
      }
    }

    return {
      ok: true,
      results,
      settingsNotes,
      settingsRestored,
      settingsMissed,
      succeeded: results.filter((r) => r.ok && !r.skipped).length,
      failed: results.filter((r) => !r.ok).length,
      skipped: results.filter((r) => r.skipped).length,
    };
  } finally {
    busy = false;
    trayStatus(null);
  }
});

ipcMain.handle('reveal-file', async (event, file) => {
  shell.showItemInFolder(file);
  return { ok: true };
});

// ---------------------------------------------------------------------------
// Update widget: one dot, five states, no banner anywhere else.
// ---------------------------------------------------------------------------

let lastUpdateState = null;

ipcMain.handle('update-state-get', () => lastUpdateState);

function setupUpdates() {
  // eslint-disable-next-line global-require
  const { autoUpdater } = require('electron-updater');
  autoUpdater.logger = null;
  autoUpdater.autoDownload = false;
  autoUpdater.autoInstallOnAppQuit = true;
  autoUpdater.setFeedURL(UPDATE_FEED);

  // Remembered as well as sent. The first check starts before the window
  // has finished loading, and an answer sent to a page that is not listening
  // yet is simply lost — which left the dot sitting there with no state.
  const push = (state) => {
    lastUpdateState = state;
    send('update-state', state);
  };
  autoUpdater.on('update-available', (info) => push({ status: 'available', version: info.version }));
  autoUpdater.on('update-not-available', () => push({ status: 'none' }));
  autoUpdater.on('download-progress', (p) => push({ status: 'downloading', percent: Math.round(p.percent) }));
  autoUpdater.on('update-downloaded', (info) => push({ status: 'downloaded', version: info.version }));
  autoUpdater.on('error', () => push({ status: 'error' }));

  // A check that cannot run at all — no network, or a copy run from the
  // source rather than the AppImage, where the updater declines — must still
  // end in an answer, or the dot pulses for ever. Red is the honest one.
  const check = () => autoUpdater.checkForUpdates()
    .then((result) => { if (!result) push({ status: 'error' }); })
    .catch(() => push({ status: 'error' }));
  check();
  setInterval(check, 30 * 60 * 1000);

  ipcMain.handle('update-check', async () => {
    try {
      const result = await autoUpdater.checkForUpdates();
      if (!result) return { error: true };
      return { ok: true };
    } catch {
      return { error: true };
    }
  });
  ipcMain.handle('update-download', async () => {
    autoUpdater.downloadUpdate().catch(() => {});
    return { ok: true };
  });
  ipcMain.handle('update-install', async () => {
    if (busy) {
      return { error: 'A backup or restore is running. Let it finish before restarting to update.' };
    }
    autoUpdater.quitAndInstall();
    return { ok: true };
  });
}