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Add some comments to storage Restore

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Torsten Grote 2023-11-27 08:26:31 -03:00 committed by Chirayu Desai
parent 18013c0379
commit d7f985ba8a
1 changed files with 3 additions and 2 deletions
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5
storage/lib/src/main/java/org/calyxos/backup/storage/restore/Restore.kt
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@ -26,7 +26,6 @@ import kotlin.time.ExperimentalTime
private const val TAG = "Restore" private const val TAG = "Restore"
@Suppress("BlockingMethodInNonBlockingContext")
internal class Restore( internal class Restore(
context: Context, context: Context,
private val storagePlugin: StoragePlugin, private val storagePlugin: StoragePlugin,
@ -57,14 +56,15 @@ internal class Restore(
MultiChunkRestore(context, storagePlugin, fileRestore, streamCrypto, streamKey) MultiChunkRestore(context, storagePlugin, fileRestore, streamCrypto, streamKey)
} }
@OptIn(ExperimentalTime::class)
fun getBackupSnapshots(): Flow<SnapshotResult> = flow { fun getBackupSnapshots(): Flow<SnapshotResult> = flow {
val numSnapshots: Int val numSnapshots: Int
val time = measure { val time = measure {
val list = try { val list = try {
// get all available backups, they may not be usable
storagePlugin.getBackupSnapshotsForRestore().sortedByDescending { storedSnapshot -> storagePlugin.getBackupSnapshotsForRestore().sortedByDescending { storedSnapshot ->
storedSnapshot.timestamp storedSnapshot.timestamp
}.map { storedSnapshot -> }.map { storedSnapshot ->
// as long as snapshot is null, it can't be used for restore
SnapshotItem(storedSnapshot, null) SnapshotItem(storedSnapshot, null)
}.toMutableList() }.toMutableList()
} catch (e: Exception) { } catch (e: Exception) {
@ -74,6 +74,7 @@ internal class Restore(
} }
// return list copies, so this works with ListAdapter and DiffUtils // return list copies, so this works with ListAdapter and DiffUtils
emit(SnapshotResult.Success(ArrayList(list))) emit(SnapshotResult.Success(ArrayList(list)))
// try to decrypt snapshots and replace list items, if we can decrypt, otherwise remove
numSnapshots = list.size numSnapshots = list.size
val iterator = list.listIterator() val iterator = list.listIterator()
while (iterator.hasNext()) { while (iterator.hasNext()) {