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Move Kingfisher data to the Caches directory

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This commit moves Kingfisher data to Apple's designated caches folder
to avoid it from being backed up to iCloud.

Closes: https://github.com/damus-io/damus/issues/2993
Changelog-Fixed: Fixed issue where cached images would be backed up to iCloud
Signed-off-by: Daniel D’Aquino <daniel@daquino.me>
This commit is contained in:
Daniel D’Aquino
2025-04-26 17:04:09 -07:00
parent 82a6046620
commit 1a6c17e308
3 changed files with 89 additions and 44 deletions
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46
damus/damusApp.swift
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@@ -80,7 +80,7 @@ class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDele
UNUserNotificationCenter.current().delegate = self
SKPaymentQueue.default().add(StoreObserver.standard)
registerNotificationCategories()
migrateKingfisherCacheIfNeeded()
ImageCacheMigrations.migrateKingfisherCacheIfNeeded()
configureKingfisherCache()
return true
}
@@ -113,50 +113,8 @@ class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDele
completionHandler()
}
private func migrateKingfisherCacheIfNeeded() {
let fileManager = FileManager.default
let defaults = UserDefaults.standard
let migrationKey = "KingfisherCacheMigrated"
// Check if migration has already been done
guard !defaults.bool(forKey: migrationKey) else { return }
// Get the default Kingfisher cache (before we override it)
let defaultCache = ImageCache.default
let oldCachePath = defaultCache.diskStorage.directoryURL.path
// New shared cache location
guard let groupURL = fileManager.containerURL(forSecurityApplicationGroupIdentifier: Constants.DAMUS_APP_GROUP_IDENTIFIER) else { return }
let newCachePath = groupURL.appendingPathComponent(Constants.IMAGE_CACHE_DIRNAME).path
// Check if the old cache exists
if fileManager.fileExists(atPath: oldCachePath) {
do {
// Move the old cache to the new location
try fileManager.moveItem(atPath: oldCachePath, toPath: newCachePath)
print("Successfully migrated Kingfisher cache to \(newCachePath)")
} catch {
print("Failed to migrate cache: \(error)")
// Optionally, copy instead of move if you want to preserve the old cache as a fallback
do {
try fileManager.copyItem(atPath: oldCachePath, toPath: newCachePath)
print("Copied cache instead due to error")
} catch {
print("Failed to copy cache: \(error)")
}
}
}
// Mark migration as complete
defaults.set(true, forKey: migrationKey)
}
private func configureKingfisherCache() {
guard let groupURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: Constants.DAMUS_APP_GROUP_IDENTIFIER) else {
return
}
let cachePath = groupURL.appendingPathComponent(Constants.IMAGE_CACHE_DIRNAME)
let cachePath = ImageCacheMigrations.kingfisherCachePath()
if let cache = try? ImageCache(name: "sharedCache", cacheDirectoryURL: cachePath) {
KingfisherManager.shared.cache = cache
}