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Fix Already Safe = 0: hybrid ManifestIndex preserves localIdentifiers + NAS filenames

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The root cause: buildManifestIndex was discarding manifest localIdentifiers and
switching to pure filename-only matching whenever dirCount > manifest.totalCount
(which is always true when the NAS has files from other tools). If filenames didn't
match exactly, Already Safe dropped to 0 on every stale-cache reconcile.

Fix: introduce ManifestIndex(manifest:nasFilenames:totalCount:) — a hybrid that keeps
Kisani's localIdentifiers as primary keys AND adds all NAS directory filenames for
filename-fallback. Used in:
- buildManifestIndex (full reconcile)
- fast path (when dirCount > cached.entries.count, previously gated at <= 1)
- BackupEngine step 3b (so "Back up again" only uploads genuinely missing files)

Also simplify countSafe / pendingIDs / step-4 filter to always try filename fallback
(removes the isFilenameOnly gate that blocked matches when the index had IDs).

Co-Authored-By: Kutesir <kutesir@provoc.ug>
Co-Authored-By: Sentry <sentry@provoc.ug>
This commit is contained in:
Robin Kutesa
2026-05-19 00:32:03 +03:00
parent d5b1f13434
commit 6ae567d008
4 changed files with 49 additions and 33 deletions
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30
Services/BackupStatusService.swift
View File

@@ -162,16 +162,17 @@ final class BackupStatusService: NSObject, ObservableObject {
fastPath: if !manifestCacheIsStale, let cached = await NASManifestCache.shared.manifest, localIndexCount > 0 {
let dirCount = await NASManifestCache.shared.directoryCount ?? 0
let index: ManifestIndex
if cached.entries.count <= 1 && dirCount > 1 {
// Manifest is sparse vs. actual NAS directory. Use cached filenames for
// filename-based matching so countSafe reflects real NAS coverage.
// If filenames aren't cached yet, fall through to a full NAS reconcile.
if dirCount > cached.entries.count {
// NAS has more files than the manifest tracks. Build a hybrid index that keeps
// manifest localIdentifiers (for Kisani uploads) and adds all cached NAS
// filenames as a filename-fallback. If filenames aren't cached yet, fall
// through to a full NAS reconcile so they get populated.
guard let filenames = await NASManifestCache.shared.directoryFilenames else {
log.info("Reconcile (cached): sparse manifest, no cached filenames — falling to full reconcile")
log.info("Reconcile (cached): NAS dir(\(dirCount)) > manifest(\(cached.entries.count)) — no cached filenames, falling to full reconcile")
break fastPath
}
index = await Task.detached(priority: .utility) {
ManifestIndex(nasFilenames: filenames)
ManifestIndex(manifest: cached, nasFilenames: filenames, totalCount: dirCount)
}.value
} else {
index = await Task.detached(priority: .utility) {
@@ -320,9 +321,13 @@ final class BackupStatusService: NSObject, ObservableObject {
let dirCount = filteredItems.count
log.info("buildManifestIndex: dir=\(dirCount) manifest=\(index.totalCount)")
if dirCount > index.totalCount {
await NASManifestCache.shared.setDirectoryFilenames(filteredItems.map { $0.name })
// NAS has more files than manifest: keep manifest localIdentifiers
// for Kisani-tracked uploads and add all NAS filenames as fallback.
// This prevents discarding accumulated localIdentifier history.
let nasNames = filteredItems.map { $0.name }
await NASManifestCache.shared.setDirectoryFilenames(nasNames)
return await Task.detached(priority: .utility) {
ManifestIndex(nasListing: items)
ManifestIndex(manifest: manifest, nasFilenames: nasNames, totalCount: dirCount)
}.value
} else {
await NASManifestCache.shared.setDirectoryCount(dirCount)
@@ -371,12 +376,9 @@ final class BackupStatusService: NSObject, ObservableObject {
count += 1
} else {
let resources = PHAssetResource.assetResources(for: asset)
if let name = resources.first?.originalFilename {
if index.isFilenameOnly && index.matches(filename: name) {
count += 1
} else if index.matchesUnclaimed(filename: name) {
count += 1
}
if let name = resources.first?.originalFilename,
index.matches(filename: name) {
count += 1
}
}
}