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Show update-available banner automatically on launch (#1651)

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* Show update-available banner automatically on launch

Probe for updates immediately on launch via Sparkle's
checkForUpdateInformation() so the sidebar surfaces a passive update
indicator without waiting for the 24h scheduler. When Sparkle detects
an available update in the background, the pill now shows
"Update Available: X.Y.Z" with accent styling while the updater is
idle. Clicking it triggers the full interactive update flow.

Also fixes thread safety in delegate callbacks by dispatching
@Published mutations to the main queue.

Closes #1643

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Add periodic background update probe every 15 minutes

The launch-only probe wouldn't catch updates published while the app
is already running. Add a repeating 15-minute timer that calls
checkForUpdateInformation() so the sidebar banner appears within a
reasonable window after a new version is published.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Change background update probe interval to 30 minutes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Change update check interval to 1 hour and migrate existing users

Reduce Sparkle's scheduled check interval from 24h to 1h so update
banners appear sooner. Migrate users stuck on the old 24h default by
bumping the migration key to v2. Align background probe interval with
the Sparkle check interval instead of hardcoding 30 minutes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Austin Wang 2026-03-18 12:30:44 -07:00 • committed by GitHub
parent 63e65a7f5c
commit e203c51c7a
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GPG key ID: B5690EEEBB952194
7 changed files with 147 additions and 32 deletions
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34
Sources/Update/UpdateController.swift
View file

@ -8,8 +8,9 @@ enum UpdateSettings {
static let automaticallyUpdateKey = "SUAutomaticallyUpdate"
static let scheduledCheckIntervalKey = "SUScheduledCheckInterval"
static let sendProfileInfoKey = "SUSendProfileInfo"
static let migrationKey = "cmux.sparkle.automaticChecksMigration.v1"
static let scheduledCheckInterval: TimeInterval = 60 * 60 * 24
static let migrationKey = "cmux.sparkle.automaticChecksMigration.v2"
static let previousDefaultScheduledCheckInterval: TimeInterval = 60 * 60 * 24
static let scheduledCheckInterval: TimeInterval = 60 * 60
static func apply(to defaults: UserDefaults) {
defaults.register(defaults: [
@ -26,7 +27,9 @@ enum UpdateSettings {
defaults.set(true, forKey: automaticChecksKey)
if let interval = defaults.object(forKey: scheduledCheckIntervalKey) as? NSNumber {
if interval.doubleValue <= 0 {
let currentInterval = interval.doubleValue
if currentInterval <= 0 ||
abs(currentInterval - previousDefaultScheduledCheckInterval) < 1 {
defaults.set(scheduledCheckInterval, forKey: scheduledCheckIntervalKey)
}
} else {
@ -54,9 +57,11 @@ class UpdateController {
private var noUpdateDismissCancellable: AnyCancellable?
private var noUpdateDismissWorkItem: DispatchWorkItem?
private var readyCheckWorkItem: DispatchWorkItem?
private var backgroundProbeTimer: Timer?
private var didStartUpdater: Bool = false
private let readyRetryDelay: TimeInterval = 0.25
private let readyRetryCount: Int = 20
private let backgroundProbeInterval: TimeInterval = UpdateSettings.scheduledCheckInterval
var viewModel: UpdateViewModel {
userDriver.viewModel
@ -88,6 +93,7 @@ class UpdateController {
noUpdateDismissCancellable?.cancel()
noUpdateDismissWorkItem?.cancel()
readyCheckWorkItem?.cancel()
backgroundProbeTimer?.invalidate()
}
/// Start the updater. If startup fails, the error is shown via the custom UI.
@ -115,6 +121,7 @@ class UpdateController {
UpdateLogStore.shared.append(
"updater started (autoChecks=\(updater.automaticallyChecksForUpdates), interval=\(interval)s, autoDownloads=\(updater.automaticallyDownloadsUpdates))"
)
startLaunchUpdateProbeIfNeeded()
} catch {
userDriver.viewModel.state = .error(.init(
error: error,
@ -130,6 +137,27 @@ class UpdateController {
}
}
private func startLaunchUpdateProbeIfNeeded() {
guard updater.automaticallyChecksForUpdates else {
UpdateLogStore.shared.append("launch update probe skipped (automatic checks disabled)")
return
}
// Probe immediately on launch so the sidebar can surface a passive update indicator
// without waiting for Sparkle's scheduled check or opening interactive update UI.
UpdateLogStore.shared.append("starting launch update probe")
updater.checkForUpdateInformation()
// Re-probe every hour so the banner appears even if the app has been running
// for a while when a new version is published.
backgroundProbeTimer?.invalidate()
backgroundProbeTimer = Timer.scheduledTimer(withTimeInterval: backgroundProbeInterval, repeats: true) { [weak self] _ in
guard let self, self.updater.automaticallyChecksForUpdates else { return }
UpdateLogStore.shared.append("periodic background update probe")
self.updater.checkForUpdateInformation()
}
}
/// Force install the current update by auto-confirming all installable states.
func installUpdate() {
guard viewModel.state.isInstallable else { return }