Use S3 ListObjectsV2 for listing files

ListObjects has been deprecated since 2016 and ListObjectsV2 with use of
explicit pagination tokens is more performant for large listings as well.

This also mitigates an issue with iDrive E2 where the StartAfter/Marker
is included in the output, leading to duplicate entries. Right now this
causes an exhaustive prune to delete chunks erroneously flagged as
duplicate, destroying the storage.

README.md

@@ -1,45 +1,3 @@
-# Dupluxe
-
-An experimental Duplicacy derivative with improved support for preserving state on UNIX like systems. Produces snapshots compatible with Duplicacy.
-
-NOTE: This project/repository is not affiliated with nor endorsed by Duplicacy, Acrosync or their associated rights holders. This project is open source but is not free/libre software. It is developed and distributed in accordance with the associated LICENSE. Commercial use may require purchase of a license from Acrosync, please contact them if you have any doubts.
-
-## Added Features
-* Support for hard links. Hard links are tracked during local file listing. All linked entries will reuse the same chunk data, so this can give a time and space saving benefit as hard-linked files only need to be packed once. Hard links are supported to everything (regular files, symlinks, special files) except directories.
-* Optional File flags, that is chflags(1) on BSD/Darwin, and ioctl_iflags(2) on Linux. The primary use case is to preserve iflags used by btrfs for no-COW and compression.
-* Optional Special files (character/block devices, FIFOs, and sockets) are preserved along with associated metadata.
-
-## Assorted Changes
-* The S3 backend uses the newer ListObjectsV2 interface originally because of a bug with some providers with the old, obsolete interface, but now because this API is considerably faster on a number of providers tested.
-* B2 client max listing per request increased to 10,000
-* A fix for the exclude_by_attribute feature on BSD/Unix which has been broken upstream for ages.
-
-## Snapshot Format
-The generated preserves snapshots are backward compatible with vanilla versions of duplicacy and also do not increase the encoding size of metadata significantly. Unfortunately duplicacy does not have a formal forward-compatible snapshot versioning system, but that's not too surprising. This does mean that the data encoding is somewhat abusive of the existing format.
-
-### Hard links
-The storage differs for regular files vs. every other target. Entry records contain a `Link` string field for the symlink target. When a likely hard linked file is encountered (`st_nlink > 1`) that entry is marked as a hard link root with the string "/" in the `Link` field and it is placed in an array, the index of this array will serve as a link address. Plain duplicacy only uses the `Link` field for symlinks. Files that hard link to this initial file have the index of the array of root files encoded as a base-16 integer into their `Link` field. These entries are placed in the snapshot with valid start/end chunk and offset values and all metadata is cloned so official Duplicacy will recover them as regular files with all metadata, it just will never make hard links.
-For hard links to symlinks and special files, the `Link` isn't used. Instead, since these files never have content the `EndChunk/EndOffset` fields are used. A magic number (-9) is encoded in `EndChunk` for root entries and (-10) for clone/child entries. The `EndOffset` contains the index into the root entry array.
-
-### Special Files
-Duplicacy simply skips special files. DuplicacyIX does not skip them. The `st_rdev` (device number) for character and block devices is stored with the lower 32-bits in `StartChunk` and the upper 32-bits in `StartOffset`, though no actual supported system uses anything bigger than 32-bits. The packing of this quantity is OS specific, but major, minor numbers are also OS specific.
-
-### File flags
-Files flags are stored in the extended attributes table with a short (2 character) OS specific key prefixed with a null-byte. Duplicacy will try to set these xattrs, however they will be ignored as the name appears to be empty with the initial null-byte.
-
-
-## Motivation
-Arguably system root directories are better preserved in a filesystem image format, however the line becomes blurred for home and data directories the former which tends to become a magnet for all kinds of data layout. This gives the option of a convenient random addressable cloud backup with easy partial restore while also being able to backup an nearly exact replica for use in disaster recovery. Nearly exact, the only metadata not preserved are times other than mtimes and ACLs on BSD-like systems.
-Hard links are a pain and might be better to not exist but in actual use, but things like git repos and SDKs have a tendency to use them. Often one has no choice but to deal with them, and forgoing preserving them is painful.
-File flags are primarily for the use case of btrfs snapshot backups, specifically with regards to compression and no-COW. The implementation applies certain flags immediately on open so that these flags apply to written blocks.
-Special files serve a couple purposes. Backup of FIFOs and sockets are primarily for preserving metadata since these files have no useful content and can always be created on the fly. The other is support for backup of overlay2 file systems. overlay2 uses character mode dev-nodes for whiteouts in addition to trusted namespace xattrs. DuplicacyIX should be able to faithfully reproduce overlay2 fs layers.
-
-## Caveats/TODO
-* Improve command line options around processing hard links and special files, especially for restore. Right now if you don't have `mknod` capabilities and the snapshot has special device files you're going to need to use filters.
-* File flags for immutability aren't handled smartly. Specifically immutable and append only files will break badly with hardlinks, since hardlink creation is deferred to after flags application. The solution is not complicated but this is not a pressing use case.
-* Some corner cases of replacing existing files with hard links might end up breaking links if not doing a full restore. Again not a pressing use case. For the primary use of disaster recovery of large portions or an entire volume it works fine.
-* Possibly encode ACLs on Mac OS/FreeBSD. On Linux the crappy POSIX 1e ACLs that no one should use are picked up in the xattrs.
-
 # Duplicacy: A lock-free deduplication cloud backup tool
 
 Duplicacy is a new generation cross-platform cloud backup tool based on the idea of [Lock-Free Deduplication](https://github.com/gilbertchen/duplicacy/wiki/Lock-Free-Deduplication).

duplicacy/duplicacy_main.go

@@ -22,7 +22,9 @@ import (
 
 	"github.com/gilbertchen/cli"
 
-	duplicacy "github.com/gilbertchen/duplicacy/src"
+	"io/ioutil"
+
+	"github.com/gilbertchen/duplicacy/src"
 )
 
 const (
@@ -314,7 +316,7 @@ func configRepository(context *cli.Context, init bool) {
 			// write real path into .duplicacy file inside repository
 			duplicacyFileName := path.Join(repository, duplicacy.DUPLICACY_FILE)
 			d1 := []byte(preferencePath)
-			err = os.WriteFile(duplicacyFileName, d1, 0644)
+			err = ioutil.WriteFile(duplicacyFileName, d1, 0644)
 			if err != nil {
 				duplicacy.LOG_ERROR("REPOSITORY_PATH", "Failed to write %s file inside repository  %v", duplicacyFileName, err)
 				return
@@ -703,7 +705,7 @@ func changePassword(context *cli.Context) {
 	}
 
 	configPath := path.Join(duplicacy.GetDuplicacyPreferencePath(), "config")
-	err = os.WriteFile(configPath, description, 0600)
+	err = ioutil.WriteFile(configPath, description, 0600)
 	if err != nil {
 		duplicacy.LOG_ERROR("CONFIG_SAVE", "Failed to save the old config to %s: %v", configPath, err)
 		return
@@ -787,17 +789,7 @@ func backupRepository(context *cli.Context) {
 	uploadRateLimit := context.Int("limit-rate")
 	enumOnly := context.Bool("enum-only")
 	storage.SetRateLimits(0, uploadRateLimit)
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password,
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, preference.NobackupFile, preference.FiltersFile, preference.ExcludeByAttribute)
-		&duplicacy.BackupManagerOptions{
-			NobackupFile:       preference.NobackupFile,
-			FiltersFile:        preference.FiltersFile,
-			ExcludeByAttribute: preference.ExcludeByAttribute,
-			ExcludeXattrs:      preference.ExcludeXattrs,
-			NormalizeXattrs:    preference.NormalizeXattrs,
-			IncludeFileFlags:   preference.IncludeFileFlags,
-			IncludeSpecials:    preference.IncludeSpecials,
-			FileFlagsMask:      uint32(preference.FileFlagsMask),
-		})
 	duplicacy.SavePassword(*preference, "password", password)
 
 	backupManager.SetupSnapshotCache(preference.Name)
@@ -858,6 +850,14 @@ func restoreRepository(context *cli.Context) {
 		password = duplicacy.GetPassword(*preference, "password", "Enter storage password:", false, false)
 	}
 
+	quickMode := !context.Bool("hash")
+	overwrite := context.Bool("overwrite")
+	deleteMode := context.Bool("delete")
+	setOwner := !context.Bool("ignore-owner")
+
+	showStatistics := context.Bool("stats")
+	persist := context.Bool("persist")
+
 	var patterns []string
 	for _, pattern := range context.Args() {
 
@@ -881,38 +881,13 @@ func restoreRepository(context *cli.Context) {
 	duplicacy.LOG_INFO("SNAPSHOT_FILTER", "Loaded %d include/exclude pattern(s)", len(patterns))
 
 	storage.SetRateLimits(context.Int("limit-rate"), 0)
-
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, preference.NobackupFile, preference.FiltersFile, preference.ExcludeByAttribute)
-	excludeOwner := preference.ExcludeOwner
-	// TODO: for backward compat, eventually make them all overridable?
-	if context.IsSet("ignore-owner") {
-		excludeOwner = context.Bool("ignore-owner")
-	}
-
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password,
-		&duplicacy.BackupManagerOptions{
-			NobackupFile:       preference.NobackupFile,
-			FiltersFile:        preference.FiltersFile,
-			ExcludeByAttribute: preference.ExcludeByAttribute,
-			SetOwner:           excludeOwner,
-			ExcludeXattrs:      preference.ExcludeXattrs,
-			NormalizeXattrs:    preference.NormalizeXattrs,
-			IncludeSpecials:    preference.IncludeSpecials,
-			FileFlagsMask:      uint32(preference.FileFlagsMask),
-		})
-
 	duplicacy.SavePassword(*preference, "password", password)
 
 	loadRSAPrivateKey(context.String("key"), context.String("key-passphrase"), preference, backupManager, false)
 
 	backupManager.SetupSnapshotCache(preference.Name)
-	failed := backupManager.Restore(repository, revision, &duplicacy.RestoreOptions{
+	failed := backupManager.Restore(repository, revision, true, quickMode, threads, overwrite, deleteMode, setOwner, showStatistics, patterns, persist)
-		InPlace:        true,
-		QuickMode:      !context.Bool("hash"),
-		Overwrite:      context.Bool("overwrite"),
-		DeleteMode:     context.Bool("delete"),
-		ShowStatistics: context.Bool("stats"),
-		AllowFailures:  context.Bool("persist"),
-	})
 	if failed > 0 {
 		duplicacy.LOG_ERROR("RESTORE_FAIL", "%d file(s) were not restored correctly", failed)
 		return
@@ -952,8 +927,7 @@ func listSnapshots(context *cli.Context) {
 	tag := context.String("t")
 	revisions := getRevisions(context)
 
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password,
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, "", "", preference.ExcludeByAttribute)
-		&duplicacy.BackupManagerOptions{ExcludeByAttribute: preference.ExcludeByAttribute})
 	duplicacy.SavePassword(*preference, "password", password)
 
 	id := preference.SnapshotID
@@ -1009,7 +983,7 @@ func checkSnapshots(context *cli.Context) {
 	tag := context.String("t")
 	revisions := getRevisions(context)
 
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, nil)
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, "", "", false)
 	duplicacy.SavePassword(*preference, "password", password)
 
 	loadRSAPrivateKey(context.String("key"), context.String("key-passphrase"), preference, backupManager, false)
@@ -1069,7 +1043,8 @@ func printFile(context *cli.Context) {
 		snapshotID = context.String("id")
 	}
 
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, nil)
+
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, "", "", false)
 	duplicacy.SavePassword(*preference, "password", password)
 
 	loadRSAPrivateKey(context.String("key"), context.String("key-passphrase"), preference, backupManager, false)
@@ -1127,14 +1102,13 @@ func diff(context *cli.Context) {
 	}
 
 	compareByHash := context.Bool("hash")
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, nil)
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, "", "", false)
 	duplicacy.SavePassword(*preference, "password", password)
 
 	loadRSAPrivateKey(context.String("key"), context.String("key-passphrase"), preference, backupManager, false)
 
 	backupManager.SetupSnapshotCache(preference.Name)
-	backupManager.SnapshotManager.Diff(repository, snapshotID, revisions, path, compareByHash,
+	backupManager.SnapshotManager.Diff(repository, snapshotID, revisions, path, compareByHash, preference.NobackupFile, preference.FiltersFile, preference.ExcludeByAttribute)
-		duplicacy.NewListFilesOptions(preference))
 
 	runScript(context, preference.Name, "post")
 }
@@ -1173,7 +1147,7 @@ func showHistory(context *cli.Context) {
 
 	revisions := getRevisions(context)
 	showLocalHash := context.Bool("hash")
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, nil)
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, "", "", false)
 	duplicacy.SavePassword(*preference, "password", password)
 
 	backupManager.SetupSnapshotCache(preference.Name)
@@ -1236,7 +1210,7 @@ func pruneSnapshots(context *cli.Context) {
 		os.Exit(ArgumentExitCode)
 	}
 
-	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, nil)
+	backupManager := duplicacy.CreateBackupManager(preference.SnapshotID, storage, repository, password, "", "", false)
 	duplicacy.SavePassword(*preference, "password", password)
 
 	backupManager.SetupSnapshotCache(preference.Name)
@@ -1281,7 +1255,7 @@ func copySnapshots(context *cli.Context) {
 		sourcePassword = duplicacy.GetPassword(*source, "password", "Enter source storage password:", false, false)
 	}
 
-	sourceManager := duplicacy.CreateBackupManager(source.SnapshotID, sourceStorage, repository, sourcePassword, nil)
+	sourceManager := duplicacy.CreateBackupManager(source.SnapshotID, sourceStorage, repository, sourcePassword, "", "", false)
 	sourceManager.SetupSnapshotCache(source.Name)
 	duplicacy.SavePassword(*source, "password", sourcePassword)
 
@@ -1316,7 +1290,7 @@ func copySnapshots(context *cli.Context) {
 	destinationStorage.SetRateLimits(0, context.Int("upload-limit-rate"))
 
 	destinationManager := duplicacy.CreateBackupManager(destination.SnapshotID, destinationStorage, repository,
-		destinationPassword, nil)
+		                                                  destinationPassword, "", "", false)
 	duplicacy.SavePassword(*destination, "password", destinationPassword)
 	destinationManager.SetupSnapshotCache(destination.Name)
 
@@ -1441,7 +1415,7 @@ func benchmark(context *cli.Context) {
 	if storage == nil {
 		return
 	}
-	duplicacy.Benchmark(repository, storage, int64(fileSize)*1024*1024, chunkSize*1024*1024, chunkCount, uploadThreads, downloadThreads)
+	duplicacy.Benchmark(repository, storage, int64(fileSize) * 1024 * 1024, chunkSize * 1024 * 1024, chunkCount, uploadThreads, downloadThreads)
 }
 
 func main() {
@@ -1480,8 +1454,8 @@ func main() {
 					Argument: "<level>",
 				},
 				cli.BoolFlag{
-					Name:  "zstd",
+					Name:     "zstd",
-					Usage: "short for -zstd default",
+					Usage:    "short for -zstd default",
 				},
 				cli.IntFlag{
 					Name:     "iterations",
@@ -1556,8 +1530,8 @@ func main() {
 					Argument: "<level>",
 				},
 				cli.BoolFlag{
-					Name:  "zstd",
+					Name:     "zstd",
-					Usage: "short for -zstd default",
+					Usage:    "short for -zstd default",
 				},
 				cli.BoolFlag{
 					Name:  "vss",
@@ -1590,6 +1564,7 @@ func main() {
 					Usage:    "the maximum number of entries kept in memory (defaults to 1M)",
 					Argument: "<number>",
 				},
+
 			},
 			Usage:     "Save a snapshot of the repository to the storage",
 			ArgsUsage: " ",
@@ -1649,7 +1624,7 @@ func main() {
 				cli.BoolFlag{
 					Name:  "persist",
 					Usage: "continue processing despite chunk errors or existing files (without -overwrite), reporting any affected files",
-				},
+        },
 				cli.StringFlag{
 					Name:     "key-passphrase",
 					Usage:    "the passphrase to decrypt the RSA private key",
@@ -2007,8 +1982,8 @@ func main() {
 					Argument: "<level>",
 				},
 				cli.BoolFlag{
-					Name:  "zstd",
+					Name:     "zstd",
-					Usage: "short for -zstd default",
+					Usage:    "short for -zstd default",
 				},
 				cli.IntFlag{
 					Name:     "iterations",
@@ -2273,8 +2248,8 @@ func main() {
 			Usage: "add a comment to identify the process",
 		},
 		cli.StringSliceFlag{
-			Name:     "suppress, s",
+			Name:  "suppress, s",
-			Usage:    "suppress logs with the specified id",
+			Usage: "suppress logs with the specified id",
 			Argument: "<id>",
 		},
 		cli.BoolFlag{
@@ -2287,7 +2262,7 @@ func main() {
 	app.Name = "duplicacy"
 	app.HelpName = "duplicacy"
 	app.Usage = "A new generation cloud backup tool based on lock-free deduplication"
-	app.Version = "3.2.2" + " (" + GitCommit + ")"
+	app.Version = "3.2.0" + " (" + GitCommit + ")"
 
 	// Exit with code 2 if an invalid command is provided
 	app.CommandNotFound = func(context *cli.Context, command string) {

go.mod

@@ -1,6 +1,6 @@
 module github.com/gilbertchen/duplicacy
 
-go 1.20
+go 1.16
 
 require (
 	cloud.google.com/go v0.38.0
@@ -13,23 +13,20 @@ require (
 	github.com/gilbertchen/go-ole v1.2.0
 	github.com/gilbertchen/goamz v0.0.0-20170712012135-eada9f4e8cc2
 	github.com/gilbertchen/gopass v0.0.0-20170109162249-bf9dde6d0d2c
-	github.com/gilbertchen/highwayhash v0.0.0-20221109044721-eeab1f4799d8
 	github.com/gilbertchen/keyring v0.0.0-20221004152639-1661cbebc508
-	github.com/hirochachacha/go-smb2 v1.1.0
+	github.com/gilbertchen/xattr v0.0.0-20160926155429-68e7a6806b01
-	github.com/klauspost/compress v1.16.3
 	github.com/klauspost/reedsolomon v1.9.9
 	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1
 	github.com/minio/highwayhash v1.0.2
 	github.com/ncw/swift/v2 v2.0.1
 	github.com/pkg/sftp v1.11.0
-	github.com/pkg/xattr v0.4.9
+	github.com/pkg/xattr v0.4.1
 	github.com/vmihailenco/msgpack v4.0.4+incompatible
-	golang.org/x/crypto v0.12.0
+	golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838
-	golang.org/x/net v0.10.0
+	golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
-	golang.org/x/sys v0.11.0
 	google.golang.org/api v0.21.0
-	storj.io/uplink v1.12.0
+	storj.io/uplink v1.9.0
 )
 
 require (
@@ -37,41 +34,38 @@ require (
 	github.com/calebcase/tmpfile v1.0.3 // indirect
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/dnaeon/go-vcr v1.2.0 // indirect
-	github.com/flynn/noise v1.0.0 // indirect
+	github.com/gilbertchen/highwayhash v0.0.0-20221109044721-eeab1f4799d8 // indirect
-	github.com/geoffgarside/ber v1.1.0 // indirect
 	github.com/goamz/goamz v0.0.0-20180131231218-8b901b531db8 // indirect
 	github.com/godbus/dbus v4.1.0+incompatible // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
-	github.com/golang/protobuf v1.5.0 // indirect
 	github.com/googleapis/gax-go/v2 v2.0.5 // indirect
+	github.com/hirochachacha/go-smb2 v1.1.0 // indirect
 	github.com/jmespath/go-jmespath v0.3.0 // indirect
-	github.com/jtolio/eventkit v0.0.0-20221004135224-074cf276595b // indirect
+	github.com/klauspost/compress v1.16.3 // indirect
-	github.com/jtolio/noiseconn v0.0.0-20230111204749-d7ec1a08b0b8 // indirect
 	github.com/klauspost/cpuid v1.3.1 // indirect
-	github.com/klauspost/cpuid/v2 v2.0.12 // indirect
 	github.com/kr/fs v0.1.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
 	github.com/marstr/guid v1.1.0 // indirect
 	github.com/mmcloughlin/avo v0.0.0-20200803215136-443f81d77104 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/satori/go.uuid v1.2.0 // indirect
 	github.com/segmentio/go-env v1.1.0 // indirect
-	github.com/spacemonkeygo/monkit/v3 v3.0.20-0.20230227152157-d00b379de191 // indirect
+	github.com/spacemonkeygo/monkit/v3 v3.0.17 // indirect
 	github.com/vaughan0/go-ini v0.0.0-20130923145212-a98ad7ee00ec // indirect
 	github.com/vivint/infectious v0.0.0-20200605153912-25a574ae18a3 // indirect
-	github.com/zeebo/blake3 v0.2.3 // indirect
 	github.com/zeebo/errs v1.3.0 // indirect
 	go.opencensus.io v0.22.3 // indirect
-	golang.org/x/mod v0.10.0 // indirect
+	golang.org/x/mod v0.4.2 // indirect
-	golang.org/x/sync v0.3.0 // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
-	golang.org/x/term v0.11.0 // indirect
+	golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27 // indirect
-	golang.org/x/text v0.12.0 // indirect
+	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 // indirect
-	golang.org/x/tools v0.9.1 // indirect
+	golang.org/x/text v0.3.6 // indirect
+	golang.org/x/tools v0.1.1 // indirect
+	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	google.golang.org/appengine v1.6.5 // indirect
 	google.golang.org/genproto v0.0.0-20200409111301-baae70f3302d // indirect
 	google.golang.org/grpc v1.28.1 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	storj.io/common v0.0.0-20220414110316-a5cb7172d6bf // indirect
-	storj.io/common v0.0.0-20230907123639-5fd0608fd947 // indirect
+	storj.io/drpc v0.0.30 // indirect
-	storj.io/drpc v0.0.33 // indirect
-	storj.io/picobuf v0.0.2-0.20230906122608-c4ba17033c6c // indirect
 )

go.sum

@@ -1,40 +1,67 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo=
 cloud.google.com/go v0.38.0 h1:ROfEUZz+Gh5pa62DJWXSaonyu3StP6EA6lPEXPI6mCo=
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
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@@ -198,15 +319,21 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
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@@ -214,65 +341,93 @@ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJ
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+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
-storj.io/common v0.0.0-20230907123639-5fd0608fd947 h1:X75A5hX1nFjQH8GIvei4T1LNQTLa++bsDKMxXxfPHE8=
+sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
-storj.io/common v0.0.0-20230907123639-5fd0608fd947/go.mod h1:FMVOxf2+SgsmfjxwFCM1MZCKwXis4U7l22M/6nIhIas=
+sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
-storj.io/drpc v0.0.33 h1:yCGZ26r66ZdMP0IcTYsj7WDAUIIjzXk6DJhbhvt9FHI=
+storj.io/common v0.0.0-20220414110316-a5cb7172d6bf h1:D5xZTDOlTTQWdAWeKKm2pFLcz1sceH+f/pVAcYB9jL8=
-storj.io/drpc v0.0.33/go.mod h1:vR804UNzhBa49NOJ6HeLjd2H3MakC1j5Gv8bsOQT6N4=
+storj.io/common v0.0.0-20220414110316-a5cb7172d6bf/go.mod h1:LBJrpAqL4MNSrhGEwc8SJ+tIVtgfCtFEZqDy6/0j67A=
-storj.io/picobuf v0.0.2-0.20230906122608-c4ba17033c6c h1:or/DtG5uaZpzimL61ahlgAA+MTYn/U3txz4fe+XBFUg=
+storj.io/drpc v0.0.30 h1:jqPe4T9KEu3CDBI05A2hCMgMSHLtd/E0N0yTF9QreIE=
-storj.io/picobuf v0.0.2-0.20230906122608-c4ba17033c6c/go.mod h1:JCuc3C0gzCJHQ4J6SOx/Yjg+QTpX0D+Fvs5H46FETCk=
+storj.io/drpc v0.0.30/go.mod h1:6rcOyR/QQkSTX/9L5ZGtlZaE2PtXTTZl8d+ulSeeYEg=
-storj.io/uplink v1.12.0 h1:rTODjbKRo/lzz5Hp0isjoRfqDcH7kJg6aujD2M9v9Ro=
+storj.io/uplink v1.9.0 h1:Zg1kX1VqOQIKm0yAukteKpLuT68Be3euyNRML612ERM=
-storj.io/uplink v1.12.0/go.mod h1:nMAuoWi5AHio+8NQa33VRzCiRg0B0UhYKuT0a0CdXOg=
+storj.io/uplink v1.9.0/go.mod h1:f6D8306j5mnRHnPDKWCiwtPM6ukyGg77to9LaAY9l6k=

src/duplicacy_b2client.go

@@ -396,7 +396,7 @@ type B2ListFileNamesOutput struct {
 
 func (client *B2Client) ListFileNames(threadIndex int, startFileName string, singleFile bool, includeVersions bool) (files []*B2Entry, err error) {
 
-	maxFileCount := 10_000
+	maxFileCount := 1000
 	if singleFile {
 		if includeVersions {
 			maxFileCount = 4

src/duplicacy_backupmanager.go

@@ -7,9 +7,9 @@ package duplicacy
 import (
 	"bytes"
 	"encoding/hex"
+	"encoding/json"
 	"fmt"
 	"io"
-	"math"
 	"os"
 	"path"
 	"path/filepath"
@@ -21,11 +21,12 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/vmihailenco/msgpack"
+    "github.com/vmihailenco/msgpack"
 )
 
 // BackupManager performs the two major operations, backup and restore, and passes other operations, mostly related to
 // snapshot management, to the snapshot manager.
+
 type BackupManager struct {
 	snapshotID string  // Unique id for each repository
 	storage    Storage // the storage for storing backups
@@ -33,35 +34,15 @@ type BackupManager struct {
 	SnapshotManager *SnapshotManager // the snapshot manager
 	snapshotCache   *FileStorage     // for copies of chunks needed by snapshots
 
-	config  *Config // contains a number of options
+	config *Config // contains a number of options
-	options BackupManagerOptions
+
+	nobackupFile string // don't backup directory when this file name is found
+	filtersFile string  // the path to the filters file
+	excludeByAttribute bool // don't backup file based on file attribute
 
 	cachePath string
 }
 
-type BackupManagerOptions struct {
-	NobackupFile       string // don't backup directory when this file name is found
-	FiltersFile        string // the path to the filters file
-	ExcludeByAttribute bool   // don't backup file based on file attribute
-	SetOwner           bool
-	ExcludeXattrs      bool
-	NormalizeXattrs    bool
-	IncludeFileFlags   bool
-	IncludeSpecials    bool
-	FileFlagsMask      uint32
-}
-
-type RestoreOptions struct {
-	Threads        int
-	Patterns       []string
-	InPlace        bool
-	QuickMode      bool
-	Overwrite      bool
-	DeleteMode     bool
-	ShowStatistics bool
-	AllowFailures  bool
-}
-
 func (manager *BackupManager) SetDryRun(dryRun bool) {
 	manager.config.dryRun = dryRun
 }
@@ -73,8 +54,7 @@ func (manager *BackupManager) SetCompressionLevel(level int) {
 // CreateBackupManager creates a backup manager using the specified 'storage'.  'snapshotID' is a unique id to
 // identify snapshots created for this repository.  'top' is the top directory of the repository.  'password' is the
 // master key which can be nil if encryption is not enabled.
-func CreateBackupManager(snapshotID string, storage Storage, top string, password string,
+func CreateBackupManager(snapshotID string, storage Storage, top string, password string, nobackupFile string, filtersFile string, excludeByAttribute bool) *BackupManager {
-	options *BackupManagerOptions) *BackupManager {
 
 	config, _, err := DownloadConfig(storage, password)
 	if err != nil {
@@ -94,11 +74,13 @@ func CreateBackupManager(snapshotID string, storage Storage, top string, passwor
 
 		SnapshotManager: snapshotManager,
 
-		config:  config,
+		config: config,
-		options: *options,
+
-	}
+		nobackupFile: nobackupFile,
-	if options != nil {
+
-		backupManager.options = *options
+		filtersFile: filtersFile,
+
+		excludeByAttribute: excludeByAttribute,
 	}
 
 	if IsDebugging() {
@@ -149,7 +131,8 @@ func (manager *BackupManager) SetupSnapshotCache(storageName string) bool {
 func (manager *BackupManager) Backup(top string, quickMode bool, threads int, tag string,
 	showStatistics bool, shadowCopy bool, shadowCopyTimeout int, enumOnly bool, metadataChunkSize int, maximumInMemoryEntries int) bool {
 
-	top, err := filepath.Abs(top)
+	var err error
+	top, err = filepath.Abs(top)
 	if err != nil {
 		LOG_ERROR("REPOSITORY_ERR", "Failed to obtain the absolute path of the repository: %v", err)
 		return false
@@ -163,14 +146,14 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 
 	if manager.config.DataShards != 0 && manager.config.ParityShards != 0 {
 		LOG_INFO("BACKUP_ERASURECODING", "Erasure coding is enabled with %d data shards and %d parity shards",
-			manager.config.DataShards, manager.config.ParityShards)
+		         manager.config.DataShards, manager.config.ParityShards)
 	}
 
 	if manager.config.rsaPublicKey != nil && len(manager.config.FileKey) > 0 {
 		LOG_INFO("BACKUP_KEY", "RSA encryption is enabled")
 	}
 
-	if manager.options.ExcludeByAttribute {
+	if manager.excludeByAttribute {
 		LOG_INFO("BACKUP_EXCLUDE", "Exclude files with no-backup attributes")
 	}
 
@@ -204,7 +187,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 
 	// If the listing operation is fast and this is an initial backup, list all chunks and
 	// put them in the cache.
-	if manager.storage.IsFastListing() && remoteSnapshot.Revision == 0 {
+	if (manager.storage.IsFastListing() && remoteSnapshot.Revision == 0) {
 		LOG_INFO("BACKUP_LIST", "Listing all chunks")
 		allChunks, _ := manager.SnapshotManager.ListAllFiles(manager.storage, "chunks/")
 
@@ -239,7 +222,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 
 	var totalModifiedFileSize int64    // total size of modified files
 	var uploadedModifiedFileSize int64 // portions that have been uploaded (including cache hits)
-	var preservedFileSize int64        // total size of unmodified files
+	var preservedFileSize int64 // total size of unmodified files
 
 	localSnapshot := CreateEmptySnapshot(manager.snapshotID)
 	localSnapshot.Revision = remoteSnapshot.Revision + 1
@@ -255,17 +238,8 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 	go func() {
 		// List local files
 		defer CatchLogException()
-		localSnapshot.ListLocalFiles(shadowTop, localListingChannel, &skippedDirectories, &skippedFiles,
+		localSnapshot.ListLocalFiles(shadowTop, manager.nobackupFile, manager.filtersFile, manager.excludeByAttribute, localListingChannel, &skippedDirectories, &skippedFiles)
-			&ListFilesOptions{
+	} ()
-				NoBackupFile:       manager.options.NobackupFile,
-				FiltersFile:        manager.options.FiltersFile,
-				ExcludeByAttribute: manager.options.ExcludeByAttribute,
-				ExcludeXattrs:      manager.options.ExcludeXattrs,
-				NormalizeXattr:     manager.options.NormalizeXattrs,
-				IncludeFileFlags:   manager.options.IncludeFileFlags,
-				IncludeSpecials:    manager.options.IncludeSpecials,
-			})
-	}()
 
 	go func() {
 		// List remote files
@@ -287,7 +261,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 			})
 		}
 		close(remoteListingChannel)
-	}()
+	} ()
 
 	// Create the local file list
 	localEntryList, err := CreateEntryList(manager.snapshotID, manager.cachePath, maximumInMemoryEntries)
@@ -301,7 +275,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 	var remoteEntry *Entry
 	remoteListingOK := true
 	for {
-		localEntry := <-localListingChannel
+		localEntry := <- localListingChannel
 		if localEntry == nil {
 			break
 		}
@@ -315,7 +289,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 				compareResult = localEntry.Compare(remoteEntry)
 			} else {
 				if remoteListingOK {
-					remoteEntry, remoteListingOK = <-remoteListingChannel
+					remoteEntry, remoteListingOK = <- remoteListingChannel
 				}
 				if !remoteListingOK {
 					compareResult = -1
@@ -330,7 +304,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 			remoteEntry = nil
 		}
 
-		if compareResult == 0 {
+		if compareResult == 0  {
 			// No need to check if it is in hash mode -- in that case remote listing is nil
 			if localEntry.IsSameAs(remoteEntry) && localEntry.IsFile() {
 				if localEntry.Size > 0 {
@@ -365,8 +339,8 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 			// compareResult must be < 0; the local file is new
 			totalModifiedFileSize += localEntry.Size
 			if localEntry.Size > 0 {
-				// A size of -1 indicates this is a modified file that will be uploaded
+					// A size of -1 indicates this is a modified file that will be uploaded
-				localEntry.Size = -1
+					localEntry.Size = -1
 			}
 		}
 
@@ -474,7 +448,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 
 		_, found := chunkCache[chunkID]
 		if found {
-			if time.Now().Unix()-lastUploadingTime > keepUploadAlive {
+			if time.Now().Unix() - lastUploadingTime > keepUploadAlive {
 				LOG_INFO("UPLOAD_KEEPALIVE", "Skip chunk cache to keep connection alive")
 				found = false
 			}
@@ -584,7 +558,7 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 	if showStatistics {
 
 		LOG_INFO("BACKUP_STATS", "Files: %d total, %s bytes; %d new, %s bytes",
-			localEntryList.NumberOfEntries-int64(len(skippedFiles)),
+			localEntryList.NumberOfEntries - int64(len(skippedFiles)),
 			PrettyNumber(preservedFileSize+uploadedFileSize),
 			len(localEntryList.ModifiedEntries), PrettyNumber(uploadedFileSize))
 
@@ -649,34 +623,21 @@ func (manager *BackupManager) Backup(top string, quickMode bool, threads int, ta
 }
 
 // Restore downloads the specified snapshot, compares it with what's on the repository, and then downloads
-// files that are different.'QuickMode' will bypass files with unchanged sizes and timestamps. 'DeleteMode' will
+// files that are different. 'base' is a directory that contains files at a different revision which can
-// remove local files that don't exist in the snapshot. 'Patterns' is used to include/exclude certain files.
+// serve as a local cache to avoid download chunks available locally.  It is perfectly ok for 'base' to be
-func (manager *BackupManager) Restore(top string, revision int, options *RestoreOptions) int {
+// the same as 'top'.  'quickMode' will bypass files with unchanged sizes and timestamps.  'deleteMode' will
-	if options.Threads < 1 {
+// remove local files that don't exist in the snapshot. 'patterns' is used to include/exclude certain files.
-		options.Threads = 1
+func (manager *BackupManager) Restore(top string, revision int, inPlace bool, quickMode bool, threads int, overwrite bool,
-	}
+	deleteMode bool, setOwner bool, showStatistics bool, patterns []string, allowFailures bool) int {
-
-	patterns := options.Patterns
-
-	overwrite := options.Overwrite
-	allowFailures := options.AllowFailures
-
-	metadataOptions := RestoreMetadataOptions{
-		SetOwner:         manager.options.SetOwner,
-		ExcludeXattrs:    manager.options.ExcludeXattrs,
-		NormalizeXattrs:  manager.options.NormalizeXattrs,
-		IncludeFileFlags: manager.options.IncludeFileFlags,
-		FileFlagsMask:    manager.options.FileFlagsMask,
-	}
 
 	startTime := time.Now().Unix()
 
 	LOG_DEBUG("RESTORE_PARAMETERS", "top: %s, revision: %d, in-place: %t, quick: %t, delete: %t",
-		top, revision, options.InPlace, options.QuickMode, options.DeleteMode)
+		top, revision, inPlace, quickMode, deleteMode)
 
 	if !strings.HasPrefix(GetDuplicacyPreferencePath(), top) {
 		LOG_INFO("RESTORE_INPLACE", "Forcing in-place mode with a non-default preference path")
-		options.InPlace = true
+		inPlace = true
 	}
 
 	if len(patterns) > 0 {
@@ -718,24 +679,14 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 
 	localListingChannel := make(chan *Entry)
 	remoteListingChannel := make(chan *Entry)
-	chunkOperator := CreateChunkOperator(manager.config, manager.storage, manager.snapshotCache, options.ShowStatistics,
+	chunkOperator := CreateChunkOperator(manager.config, manager.storage, manager.snapshotCache, showStatistics, false, threads, allowFailures)
-		false, options.Threads, allowFailures)
 
 	LOG_INFO("RESTORE_INDEXING", "Indexing %s", top)
 	go func() {
 		// List local files
 		defer CatchLogException()
-		localSnapshot.ListLocalFiles(top, localListingChannel, nil, nil,
+		localSnapshot.ListLocalFiles(top, manager.nobackupFile, manager.filtersFile, manager.excludeByAttribute, localListingChannel, nil, nil)
-			&ListFilesOptions{
+	} ()
-				NoBackupFile:       manager.options.NobackupFile,
-				FiltersFile:        manager.options.FiltersFile,
-				ExcludeByAttribute: manager.options.ExcludeByAttribute,
-				ExcludeXattrs:      manager.options.ExcludeXattrs,
-				NormalizeXattr:     manager.options.NormalizeXattrs,
-				IncludeFileFlags:   manager.options.IncludeFileFlags,
-				IncludeSpecials:    manager.options.IncludeSpecials,
-			})
-	}()
 
 	remoteSnapshot := manager.SnapshotManager.DownloadSnapshot(manager.snapshotID, revision)
 	manager.SnapshotManager.DownloadSnapshotSequences(remoteSnapshot)
@@ -747,47 +698,13 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 			return true
 		})
 		close(remoteListingChannel)
-	}()
+	} ()
 
 	var localEntry *Entry
 	localListingOK := true
 
-	type hardLinkEntry struct {
-		entry     *Entry
-		willExist bool
-	}
-	var hardLinkTable []hardLinkEntry
-	var hardLinks []*Entry
-
-	restoreHardLink := func(entry *Entry, fullPath string) bool {
-		if entry.IsHardLinkRoot() {
-			hardLinkTable[len(hardLinkTable)-1].willExist = true
-		} else if entry.IsHardLinkChild() {
-			i, err := entry.GetHardLinkId()
-			if err != nil {
-				LOG_ERROR("RESTORE_HARDLINK", "Decode error for hard link entry %s: %v", entry.Path, err)
-				return false
-			}
-			if !hardLinkTable[i].willExist {
-				hardLinkTable[i] = hardLinkEntry{entry, true}
-			} else {
-				sourcePath := joinPath(top, hardLinkTable[i].entry.Path)
-				if err := MakeHardlink(sourcePath, fullPath); err != nil {
-					LOG_ERROR("RESTORE_HARDLINK", "Failed to create hard link %s to %s: %v", fullPath, sourcePath, err)
-				}
-				LOG_TRACE("DOWNLOAD_DONE", "Hard linked %s to %s", entry.Path, hardLinkTable[i].entry.Path)
-				return true
-			}
-		}
-		return false
-	}
-
 	for remoteEntry := range remoteListingChannel {
 
-		if remoteEntry.IsHardLinkRoot() {
-			hardLinkTable = append(hardLinkTable, hardLinkEntry{remoteEntry, false})
-		}
-
 		if len(patterns) > 0 && !MatchPath(remoteEntry.Path, patterns) {
 			continue
 		}
@@ -797,7 +714,7 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 
 		for {
 			if localEntry == nil && localListingOK {
-				localEntry, localListingOK = <-localListingChannel
+				localEntry, localListingOK = <- localListingChannel
 			}
 			if localEntry == nil {
 				compareResult = 1
@@ -813,7 +730,7 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 		}
 
 		if compareResult == 0 {
-			if options.QuickMode && localEntry.IsFile() && localEntry.IsSameAs(remoteEntry) {
+			if quickMode && localEntry.IsFile() && localEntry.IsSameAs(remoteEntry) {
 				LOG_TRACE("RESTORE_SKIP", "File %s unchanged (by size and timestamp)", localEntry.Path)
 				skippedFileSize += localEntry.Size
 				skippedFileCount++
@@ -824,40 +741,27 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 		}
 
 		fullPath := joinPath(top, remoteEntry.Path)
-
 		if remoteEntry.IsLink() {
-			if stat, _ := os.Lstat(fullPath); stat != nil {
+			stat, err := os.Lstat(fullPath)
+			if stat != nil {
 				if stat.Mode()&os.ModeSymlink != 0 {
 					isRegular, link, err := Readlink(fullPath)
 					if err == nil && link == remoteEntry.Link && !isRegular {
-						remoteEntry.RestoreMetadata(fullPath, stat, metadataOptions)
+						remoteEntry.RestoreMetadata(fullPath, nil, setOwner)
-						if remoteEntry.IsHardLinkRoot() {
-							hardLinkTable[len(hardLinkTable)-1].willExist = true
-						}
 						continue
 					}
 				}
 
-				if !overwrite {
-					LOG_WERROR(allowFailures, "DOWNLOAD_OVERWRITE",
-						"File %s already exists.  Please specify the -overwrite option to overwrite", remoteEntry.Path)
-					continue
-				}
-
 				os.Remove(fullPath)
 			}
 
-			if restoreHardLink(remoteEntry, fullPath) {
+			err = os.Symlink(remoteEntry.Link, fullPath)
-				continue
+			if err != nil {
-			}
-
-			if err := os.Symlink(remoteEntry.Link, fullPath); err != nil {
 				LOG_ERROR("RESTORE_SYMLINK", "Can't create symlink %s: %v", remoteEntry.Path, err)
 				return 0
 			}
-			remoteEntry.RestoreMetadata(fullPath, nil, metadataOptions)
+			remoteEntry.RestoreMetadata(fullPath, nil, setOwner)
 			LOG_TRACE("DOWNLOAD_DONE", "Symlink %s updated", remoteEntry.Path)
-
 		} else if remoteEntry.IsDir() {
 
 			stat, err := os.Stat(fullPath)
@@ -876,58 +780,8 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 					return 0
 				}
 			}
-			if metadataOptions.IncludeFileFlags {
-				err = remoteEntry.RestoreEarlyDirFlags(fullPath, manager.options.FileFlagsMask)
-				if err != nil {
-					LOG_WARN("DOWNLOAD_FLAGS", "Failed to set early file flags on %s: %v", fullPath, err)
-				}
-			}
 			directoryEntries = append(directoryEntries, remoteEntry)
-		} else if remoteEntry.IsSpecial() && manager.options.IncludeSpecials {
-			if stat, _ := os.Lstat(fullPath); stat != nil {
-				if remoteEntry.IsSameSpecial(stat) {
-					remoteEntry.RestoreMetadata(fullPath, nil, metadataOptions)
-					if remoteEntry.IsHardLinkRoot() {
-						hardLinkTable[len(hardLinkTable)-1].willExist = true
-					}
-					continue
-				}
-				if !overwrite {
-					LOG_WERROR(allowFailures, "DOWNLOAD_OVERWRITE",
-						"File %s already exists.  Please specify the -overwrite option to overwrite", remoteEntry.Path)
-					continue
-				}
-				os.Remove(fullPath)
-			}
-
-			if restoreHardLink(remoteEntry, fullPath) {
-				continue
-			}
-
-			if err := remoteEntry.RestoreSpecial(fullPath); err != nil {
-				LOG_ERROR("RESTORE_SPECIAL", "Failed to restore special file %s: %v", fullPath, err)
-				return 0
-			}
-			remoteEntry.RestoreMetadata(fullPath, nil, metadataOptions)
-			LOG_TRACE("DOWNLOAD_DONE", "Special %s %s restored", remoteEntry.Path, remoteEntry.FmtSpecial())
-
 		} else {
-			if remoteEntry.IsHardLinkRoot() {
-				hardLinkTable[len(hardLinkTable)-1].willExist = true
-			} else if remoteEntry.IsHardLinkChild() {
-				i, err := remoteEntry.GetHardLinkId()
-				if err != nil {
-					LOG_ERROR("RESTORE_HARDLINK", "Decode error for hard link entry %s: %v", remoteEntry.Path, err)
-					return 0
-				}
-				if !hardLinkTable[i].willExist {
-					hardLinkTable[i] = hardLinkEntry{remoteEntry, true}
-				} else {
-					hardLinks = append(hardLinks, remoteEntry)
-					continue
-				}
-			}
-
 			// We can't download files here since fileEntries needs to be sorted
 			fileEntries = append(fileEntries, remoteEntry)
 			totalFileSize += remoteEntry.Size
@@ -939,7 +793,7 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 	}
 
 	for localListingOK {
-		localEntry, localListingOK = <-localListingChannel
+		localEntry, localListingOK = <- localListingChannel
 		if localEntry != nil {
 			extraFiles = append(extraFiles, localEntry.Path)
 		}
@@ -982,7 +836,7 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 		fullPath := joinPath(top, file.Path)
 		stat, _ := os.Stat(fullPath)
 		if stat != nil {
-			if options.QuickMode {
+			if quickMode {
 				if file.IsSameAsFileInfo(stat) {
 					LOG_TRACE("RESTORE_SKIP", "File %s unchanged (by size and timestamp)", file.Path)
 					skippedFileSize += file.Size
@@ -1014,8 +868,8 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 			}
 			newFile.Close()
 
-			file.RestoreMetadata(fullPath, nil, metadataOptions)
+			file.RestoreMetadata(fullPath, nil, setOwner)
-			if !options.ShowStatistics {
+			if !showStatistics {
 				LOG_INFO("DOWNLOAD_DONE", "Downloaded %s (0)", file.Path)
 				downloadedFileSize += file.Size
 				downloadedFiles = append(downloadedFiles, file)
@@ -1024,13 +878,8 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 			continue
 		}
 
-		fileFlagsMask := metadataOptions.FileFlagsMask
+		downloaded, err := manager.RestoreFile(chunkDownloader, chunkMaker, file, top, inPlace, overwrite, showStatistics,
-		if !metadataOptions.IncludeFileFlags {
+			totalFileSize, downloadedFileSize, startDownloadingTime, allowFailures)
-			fileFlagsMask = math.MaxUint32
-		}
-		downloaded, err := manager.RestoreFile(chunkDownloader, chunkMaker, file, top, options.InPlace, overwrite,
-			options.ShowStatistics, totalFileSize, downloadedFileSize, startDownloadingTime, allowFailures,
-			fileFlagsMask)
 		if err != nil {
 			// RestoreFile returned an error; if allowFailures is false RestoerFile would error out and not return so here
 			// we just need to show a warning
@@ -1049,42 +898,10 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 			skippedFileSize += file.Size
 			skippedFileCount++
 		}
-		file.RestoreMetadata(fullPath, nil, metadataOptions)
+		file.RestoreMetadata(fullPath, nil, setOwner)
 	}
 
-	for _, linkEntry := range hardLinks {
+	if deleteMode && len(patterns) == 0 {
-
-		i, _ := linkEntry.GetHardLinkId()
-		sourcePath := joinPath(top, hardLinkTable[i].entry.Path)
-		fullPath := joinPath(top, linkEntry.Path)
-
-		if stat, _ := os.Lstat(fullPath); stat != nil {
-			sourceStat, _ := os.Lstat(sourcePath)
-			if os.SameFile(stat, sourceStat) {
-				continue
-			}
-
-			if sourceStat == nil {
-				LOG_WERROR(allowFailures, "RESTORE_HARDLINK",
-					"Target %s for hard link %s is missing", sourcePath, linkEntry.Path)
-				continue
-			}
-			if !overwrite {
-				LOG_WERROR(allowFailures, "DOWNLOAD_OVERWRITE",
-					"File %s already exists.  Please specify the -overwrite option to overwrite", linkEntry.Path)
-				continue
-			}
-			os.Remove(fullPath)
-		}
-
-		if err := MakeHardlink(sourcePath, fullPath); err != nil {
-			LOG_ERROR("RESTORE_HARDLINK", "Failed to create hard link %s to %s: %v", fullPath, sourcePath, err)
-			return 0
-		}
-		LOG_TRACE("RESTORE_HARDLINK", "Hard linked %s to %s", linkEntry.Path, hardLinkTable[i].entry.Path)
-	}
-
-	if options.DeleteMode && len(patterns) == 0 {
 		// Reverse the order to make sure directories are empty before being deleted
 		for i := range extraFiles {
 			file := extraFiles[len(extraFiles)-1-i]
@@ -1096,10 +913,10 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 
 	for _, entry := range directoryEntries {
 		dir := joinPath(top, entry.Path)
-		entry.RestoreMetadata(dir, nil, metadataOptions)
+		entry.RestoreMetadata(dir, nil, setOwner)
 	}
 
-	if options.ShowStatistics {
+	if showStatistics {
 		for _, file := range downloadedFiles {
 			LOG_INFO("DOWNLOAD_DONE", "Downloaded %s (%d)", file.Path, file.Size)
 		}
@@ -1110,7 +927,7 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 	}
 
 	LOG_INFO("RESTORE_END", "Restored %s to revision %d", top, revision)
-	if options.ShowStatistics {
+	if showStatistics {
 		LOG_INFO("RESTORE_STATS", "Files: %d total, %s bytes", len(fileEntries), PrettySize(totalFileSize))
 		LOG_INFO("RESTORE_STATS", "Downloaded %d file, %s bytes, %d chunks",
 			len(downloadedFiles), PrettySize(downloadedFileSize), chunkDownloader.numberOfDownloadedChunks)
@@ -1129,6 +946,55 @@ func (manager *BackupManager) Restore(top string, revision int, options *Restore
 	return 0
 }
 
+// fileEncoder encodes one file at a time to avoid loading the full json description of the entire file tree
+// in the memory
+type fileEncoder struct {
+	top            string
+	readAttributes bool
+	files          []*Entry
+	currentIndex   int
+	buffer         *bytes.Buffer
+}
+
+// Read reads data from the embedded buffer
+func (encoder fileEncoder) Read(data []byte) (n int, err error) {
+	return encoder.buffer.Read(data)
+}
+
+// NextFile switches to the next file and generates its json description in the buffer.  It also takes care of
+// the ending ']' and the commas between files.
+func (encoder *fileEncoder) NextFile() (io.Reader, bool) {
+	if encoder.currentIndex == len(encoder.files) {
+		return nil, false
+	}
+	if encoder.currentIndex == len(encoder.files)-1 {
+		encoder.buffer.Write([]byte("]"))
+		encoder.currentIndex++
+		return encoder, true
+	}
+
+	encoder.currentIndex++
+	entry := encoder.files[encoder.currentIndex]
+	if encoder.readAttributes {
+		entry.ReadAttributes(encoder.top)
+	}
+	description, err := json.Marshal(entry)
+	if err != nil {
+		LOG_FATAL("SNAPSHOT_ENCODE", "Failed to encode file %s: %v", encoder.files[encoder.currentIndex].Path, err)
+		return nil, false
+	}
+
+	if encoder.readAttributes {
+		entry.Attributes = nil
+	}
+
+	if encoder.currentIndex != 0 {
+		encoder.buffer.Write([]byte(","))
+	}
+	encoder.buffer.Write(description)
+	return encoder, true
+}
+
 // UploadSnapshot uploads the specified snapshot to the storage. It turns Files, ChunkHashes, and ChunkLengths into
 // sequences of chunks, and uploads these chunks, and finally the snapshot file.
 func (manager *BackupManager) UploadSnapshot(chunkOperator *ChunkOperator, top string, snapshot *Snapshot,
@@ -1180,19 +1046,14 @@ func (manager *BackupManager) UploadSnapshot(chunkOperator *ChunkOperator, top s
 	encoder := msgpack.NewEncoder(buffer)
 	metadataChunkMaker := CreateMetaDataChunkMaker(manager.config, metadataChunkSize)
 
-	var chunkHashes []string
+    var chunkHashes  []string
 	var chunkLengths []int
 	lastChunk := -1
 
 	lastEndChunk := 0
 
-	type hardLinkEntry struct {
-		entry      *Entry
-		startChunk int
-	}
-	var hardLinkTable []hardLinkEntry
-
 	uploadEntryInfoFunc := func(entry *Entry) error {
+
 		if entry.IsFile() && entry.Size > 0 {
 			delta := entry.StartChunk - len(chunkHashes) + 1
 			if entry.StartChunk != lastChunk {
@@ -1210,33 +1071,10 @@ func (manager *BackupManager) UploadSnapshot(chunkOperator *ChunkOperator, top s
 			entry.StartChunk -= delta
 			entry.EndChunk -= delta
 
-			if entry.IsHardLinkRoot() {
-				hardLinkTable = append(hardLinkTable, hardLinkEntry{entry, entry.StartChunk})
-			}
-
 			delta = entry.EndChunk - entry.StartChunk
 			entry.StartChunk -= lastEndChunk
 			lastEndChunk = entry.EndChunk
 			entry.EndChunk = delta
-		} else if entry.IsHardLinkChild() {
-			i, err := entry.GetHardLinkId()
-			if err != nil {
-				LOG_ERROR("SNAPSHOT_UPLOAD", "Decode error for hard link entry %s: %v", entry.Link, err)
-				return err
-			}
-
-			targetEntry := hardLinkTable[i].entry
-			var startChunk, endChunk int
-
-			if targetEntry.IsFile() && targetEntry.Size > 0 {
-				startChunk = hardLinkTable[i].startChunk - lastEndChunk
-				endChunk = targetEntry.EndChunk
-				lastEndChunk = hardLinkTable[i].startChunk + endChunk
-			}
-			entry = entry.HardLinkTo(targetEntry, startChunk, endChunk)
-
-		} else if entry.IsHardLinkRoot() {
-			hardLinkTable = append(hardLinkTable, hardLinkEntry{entry, 0})
 		}
 
 		buffer.Reset()
@@ -1305,13 +1143,11 @@ func (manager *BackupManager) UploadSnapshot(chunkOperator *ChunkOperator, top s
 // Restore downloads a file from the storage.  If 'inPlace' is false, the download file is saved first to a temporary
 // file under the .duplicacy directory and then replaces the existing one.  Otherwise, the existing file will be
 // overwritten directly.
-// Return: true, nil:    Restored file;
+// Return: true, nil:    Restored file; 
-//
+//         false, nil:   Skipped file; 
-//	false, nil:   Skipped file;
+//         false, error: Failure to restore file (only if allowFailures == true)
-//	false, error: Failure to restore file (only if allowFailures == true)
 func (manager *BackupManager) RestoreFile(chunkDownloader *ChunkDownloader, chunkMaker *ChunkMaker, entry *Entry, top string, inPlace bool, overwrite bool,
-	showStatistics bool, totalFileSize int64, downloadedFileSize int64, startTime int64, allowFailures bool,
+	showStatistics bool, totalFileSize int64, downloadedFileSize int64, startTime int64, allowFailures bool) (bool, error) {
-	fileFlagsMask uint32) (bool, error) {
 
 	LOG_TRACE("DOWNLOAD_START", "Downloading %s", entry.Path)
 
@@ -1358,10 +1194,6 @@ func (manager *BackupManager) RestoreFile(chunkDownloader *ChunkDownloader, chun
 					LOG_ERROR("DOWNLOAD_CREATE", "Failed to create the file %s for in-place writing: %v", fullPath, err)
 					return false, nil
 				}
-				err = entry.RestoreEarlyFileFlags(existingFile, fileFlagsMask)
-				if err != nil {
-					LOG_WARN("DOWNLOAD_FLAGS", "Failed to set early file flags on %s: %v", fullPath, err)
-				}
 
 				n := int64(1)
 				// There is a go bug on Windows (https://github.com/golang/go/issues/21681) that causes Seek to fail
@@ -1488,7 +1320,7 @@ func (manager *BackupManager) RestoreFile(chunkDownloader *ChunkDownloader, chun
 			// fileHash != entry.Hash, warn/error depending on -overwrite option
 			if !overwrite && !isNewFile {
 				LOG_WERROR(allowFailures, "DOWNLOAD_OVERWRITE",
-					"File %s already exists.  Please specify the -overwrite option to overwrite", entry.Path)
+							"File %s already exists.  Please specify the -overwrite option to overwrite", entry.Path)
 				return false, fmt.Errorf("file exists")
 			}
 
@@ -1545,10 +1377,6 @@ func (manager *BackupManager) RestoreFile(chunkDownloader *ChunkDownloader, chun
 				return false, nil
 			}
 		}
-		err = entry.RestoreEarlyFileFlags(existingFile, fileFlagsMask)
-		if err != nil {
-			LOG_WARN("DOWNLOAD_FLAGS", "Failed to set early file flags on %s: %v", fullPath, err)
-		}
 
 		existingFile.Seek(0, 0)
 
@@ -1631,10 +1459,6 @@ func (manager *BackupManager) RestoreFile(chunkDownloader *ChunkDownloader, chun
 			LOG_ERROR("DOWNLOAD_OPEN", "Failed to open file for writing: %v", err)
 			return false, nil
 		}
-		err = entry.RestoreEarlyFileFlags(newFile, fileFlagsMask)
-		if err != nil {
-			LOG_WARN("DOWNLOAD_FLAGS", "Failed to set early file flags on %s: %v", fullPath, err)
-		}
 
 		hasher := manager.config.NewFileHasher()
 
@@ -1741,7 +1565,7 @@ func (manager *BackupManager) CopySnapshots(otherManager *BackupManager, snapsho
 
 	if otherManager.config.DataShards != 0 && otherManager.config.ParityShards != 0 {
 		LOG_INFO("BACKUP_ERASURECODING", "Erasure coding is enabled for the destination storage with %d data shards and %d parity shards",
-			otherManager.config.DataShards, otherManager.config.ParityShards)
+		         otherManager.config.DataShards, otherManager.config.ParityShards)
 	}
 
 	if otherManager.config.rsaPublicKey != nil && len(otherManager.config.FileKey) > 0 {
@@ -1842,15 +1666,15 @@ func (manager *BackupManager) CopySnapshots(otherManager *BackupManager, snapsho
 		LOG_TRACE("SNAPSHOT_COPY", "Copying snapshot %s at revision %d", snapshot.ID, snapshot.Revision)
 
 		for _, chunkHash := range snapshot.FileSequence {
-			chunks[chunkHash] = true // The chunk is a snapshot chunk
+			chunks[chunkHash] = true  // The chunk is a snapshot chunk
 		}
 
 		for _, chunkHash := range snapshot.ChunkSequence {
-			chunks[chunkHash] = true // The chunk is a snapshot chunk
+			chunks[chunkHash] = true  // The chunk is a snapshot chunk
 		}
 
 		for _, chunkHash := range snapshot.LengthSequence {
-			chunks[chunkHash] = true // The chunk is a snapshot chunk
+			chunks[chunkHash] = true  // The chunk is a snapshot chunk
 		}
 
 		description := manager.SnapshotManager.DownloadSequence(snapshot.ChunkSequence)
@@ -1863,7 +1687,7 @@ func (manager *BackupManager) CopySnapshots(otherManager *BackupManager, snapsho
 
 		for _, chunkHash := range snapshot.ChunkHashes {
 			if _, found := chunks[chunkHash]; !found {
-				chunks[chunkHash] = false // The chunk is a file chunk
+				chunks[chunkHash] = false  // The chunk is a file chunk
 			}
 		}
 
@@ -1895,7 +1719,7 @@ func (manager *BackupManager) CopySnapshots(otherManager *BackupManager, snapsho
 		}
 	}
 
-	LOG_INFO("SNAPSHOT_COPY", "Chunks to copy: %d, to skip: %d, total: %d", len(chunksToCopy), len(chunks)-len(chunksToCopy), len(chunks))
+	LOG_INFO("SNAPSHOT_COPY", "Chunks to copy: %d, to skip: %d, total: %d", len(chunksToCopy), len(chunks) - len(chunksToCopy), len(chunks))
 
 	chunkDownloader := CreateChunkOperator(manager.config, manager.storage, nil, false, false, downloadingThreads, false)
 
@@ -1904,7 +1728,7 @@ func (manager *BackupManager) CopySnapshots(otherManager *BackupManager, snapsho
 
 	copiedChunks := 0
 	chunkUploader := CreateChunkOperator(otherManager.config, otherManager.storage, nil, false, false, uploadingThreads, false)
-	chunkUploader.UploadCompletionFunc = func(chunk *Chunk, chunkIndex int, skipped bool, chunkSize int, uploadSize int) {
+	chunkUploader.UploadCompletionFunc =  func(chunk *Chunk, chunkIndex int, skipped bool, chunkSize int, uploadSize int) {
 		action := "Skipped"
 		if !skipped {
 			copiedChunks++
@@ -1915,11 +1739,11 @@ func (manager *BackupManager) CopySnapshots(otherManager *BackupManager, snapsho
 
 		elapsedTime := time.Now().Sub(startTime).Seconds()
 		speed := int64(float64(atomic.LoadInt64(&uploadedBytes)) / elapsedTime)
-		remainingTime := int64(float64(len(chunksToCopy)-chunkIndex-1) / float64(chunkIndex+1) * elapsedTime)
+		remainingTime := int64(float64(len(chunksToCopy) - chunkIndex - 1) / float64(chunkIndex + 1) * elapsedTime)
-		percentage := float64(chunkIndex+1) / float64(len(chunksToCopy)) * 100.0
+		percentage := float64(chunkIndex + 1) / float64(len(chunksToCopy)) * 100.0
 		LOG_INFO("COPY_PROGRESS", "%s chunk %s (%d/%d) %sB/s %s %.1f%%",
-			action, chunk.GetID(), chunkIndex+1, len(chunksToCopy),
+				action, chunk.GetID(), chunkIndex + 1, len(chunksToCopy),
-			PrettySize(speed), PrettyTime(remainingTime), percentage)
+				PrettySize(speed), PrettyTime(remainingTime), percentage)
 		otherManager.config.PutChunk(chunk)
 	}
 
@@ -1942,7 +1766,7 @@ func (manager *BackupManager) CopySnapshots(otherManager *BackupManager, snapsho
 	chunkDownloader.Stop()
 	chunkUploader.Stop()
 
-	LOG_INFO("SNAPSHOT_COPY", "Copied %d new chunks and skipped %d existing chunks", copiedChunks, len(chunks)-copiedChunks)
+	LOG_INFO("SNAPSHOT_COPY", "Copied %d new chunks and skipped %d existing chunks", copiedChunks, len(chunks) - copiedChunks)
 
 	for _, snapshot := range snapshots {
 		if revisionMap[snapshot.ID][snapshot.Revision] == false {

src/duplicacy_backupmanager_test.go

@@ -176,6 +176,8 @@ func assertRestoreFailures(t *testing.T, failedFiles int, expectedFailedFiles in
 }
 
 func TestBackupManager(t *testing.T) {
+
+	rand.Seed(time.Now().UnixNano())
 	setTestingT(t)
 	SetLoggingLevel(INFO)
 
@@ -251,23 +253,15 @@ func TestBackupManager(t *testing.T) {
 	time.Sleep(time.Duration(delay) * time.Second)
 
 	SetDuplicacyPreferencePath(testDir + "/repository1/.duplicacy")
-	backupManager := CreateBackupManager("host1", storage, testDir, password, nil)
+	backupManager := CreateBackupManager("host1", storage, testDir, password, "", "", false)
 	backupManager.SetupSnapshotCache("default")
 
 	SetDuplicacyPreferencePath(testDir + "/repository1/.duplicacy")
 	backupManager.Backup(testDir+"/repository1" /*quickMode=*/, true, threads, "first", false, false, 0, false, 1024, 1024)
 	time.Sleep(time.Duration(delay) * time.Second)
 	SetDuplicacyPreferencePath(testDir + "/repository2/.duplicacy")
-	failedFiles := backupManager.Restore(testDir+"/repository2", 1, &RestoreOptions{
+	failedFiles := backupManager.Restore(testDir+"/repository2", threads /*inPlace=*/, false /*quickMode=*/, false, threads /*overwrite=*/, true,
-		Threads:        threads,
+		/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, false)
-		Patterns:       nil,
-		InPlace:        false,
-		QuickMode:      false,
-		Overwrite:      true,
-		DeleteMode:     false,
-		ShowStatistics: false,
-		AllowFailures:  false,
-	})
 	assertRestoreFailures(t, failedFiles, 0)
 
 	for _, f := range []string{"file1", "file2", "dir1/file3"} {
@@ -291,16 +285,8 @@ func TestBackupManager(t *testing.T) {
 	backupManager.Backup(testDir+"/repository1" /*quickMode=*/, true, threads, "second", false, false, 0, false, 1024, 1024)
 	time.Sleep(time.Duration(delay) * time.Second)
 	SetDuplicacyPreferencePath(testDir + "/repository2/.duplicacy")
-	failedFiles = backupManager.Restore(testDir+"/repository2", 2, &RestoreOptions{
+	failedFiles = backupManager.Restore(testDir+"/repository2", 2 /*inPlace=*/, true /*quickMode=*/, true, threads /*overwrite=*/, true,
-		Threads:        threads,
+		/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, false)
-		Patterns:       nil,
-		InPlace:        true,
-		QuickMode:      true,
-		Overwrite:      true,
-		DeleteMode:     false,
-		ShowStatistics: false,
-		AllowFailures:  false,
-	})
 	assertRestoreFailures(t, failedFiles, 0)
 
 	for _, f := range []string{"file1", "file2", "dir1/file3"} {
@@ -328,16 +314,8 @@ func TestBackupManager(t *testing.T) {
 	createRandomFile(testDir+"/repository2/dir5/file5", 100)
 
 	SetDuplicacyPreferencePath(testDir + "/repository2/.duplicacy")
-	failedFiles = backupManager.Restore(testDir+"/repository2", 3, &RestoreOptions{
+	failedFiles = backupManager.Restore(testDir+"/repository2", 3 /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, true,
-		Threads:        threads,
+		/*deleteMode=*/ true /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, false)
-		Patterns:       nil,
-		InPlace:        true,
-		QuickMode:      false,
-		Overwrite:      true,
-		DeleteMode:     true,
-		ShowStatistics: false,
-		AllowFailures:  false,
-	})
 	assertRestoreFailures(t, failedFiles, 0)
 
 	for _, f := range []string{"file1", "file2", "dir1/file3"} {
@@ -364,16 +342,8 @@ func TestBackupManager(t *testing.T) {
 	os.Remove(testDir + "/repository1/file2")
 	os.Remove(testDir + "/repository1/dir1/file3")
 	SetDuplicacyPreferencePath(testDir + "/repository1/.duplicacy")
-	failedFiles = backupManager.Restore(testDir+"/repository1", 3, &RestoreOptions{
+	failedFiles = backupManager.Restore(testDir+"/repository1", 3 /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, true,
-		Threads:        threads,
+		/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, []string{"+file2", "+dir1/file3", "-*"} /*allowFailures=*/, false)
-		Patterns:       []string{"+file2", "+dir1/file3", "-*"},
-		InPlace:        true,
-		QuickMode:      false,
-		Overwrite:      true,
-		DeleteMode:     false,
-		ShowStatistics: false,
-		AllowFailures:  false,
-	})
 	assertRestoreFailures(t, failedFiles, 0)
 
 	for _, f := range []string{"file1", "file2", "dir1/file3"} {
@@ -388,17 +358,17 @@ func TestBackupManager(t *testing.T) {
 	if numberOfSnapshots != 3 {
 		t.Errorf("Expected 3 snapshots but got %d", numberOfSnapshots)
 	}
-
+			
-	backupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1" /*revisions*/, []int{1, 2, 3} /*tag*/, "" /*showStatistics*/, false,
+	backupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1", /*revisions*/ []int{1, 2, 3}, /*tag*/ "", /*showStatistics*/ false,
-		/*showTabular*/ false /*checkFiles*/, false /*checkChunks*/, false /*searchFossils*/, false /*resurrect*/, false /*rewiret*/, false, 1 /*allowFailures*/, false)
+	    /*showTabular*/ false, /*checkFiles*/ false, /*checkChunks*/ false, /*searchFossils*/ false, /*resurrect*/ false, /*rewiret*/ false, 1,  /*allowFailures*/false)
 	backupManager.SnapshotManager.PruneSnapshots("host1", "host1" /*revisions*/, []int{1} /*tags*/, nil /*retentions*/, nil,
 		/*exhaustive*/ false /*exclusive=*/, false /*ignoredIDs*/, nil /*dryRun*/, false /*deleteOnly*/, false /*collectOnly*/, false, 1)
 	numberOfSnapshots = backupManager.SnapshotManager.ListSnapshots( /*snapshotID*/ "host1" /*revisionsToList*/, nil /*tag*/, "" /*showFiles*/, false /*showChunks*/, false)
 	if numberOfSnapshots != 2 {
 		t.Errorf("Expected 2 snapshots but got %d", numberOfSnapshots)
 	}
-	backupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1" /*revisions*/, []int{2, 3} /*tag*/, "" /*showStatistics*/, false,
+	backupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1", /*revisions*/ []int{2, 3}, /*tag*/ "", /*showStatistics*/ false,
-		/*showTabular*/ false /*checkFiles*/, false /*checkChunks*/, false /*searchFossils*/, false /*resurrect*/, false /*rewiret*/, false, 1 /*allowFailures*/, false)
+	     /*showTabular*/ false, /*checkFiles*/ false, /*checkChunks*/ false, /*searchFossils*/ false, /*resurrect*/ false, /*rewiret*/ false, 1, /*allowFailures*/ false)
 	backupManager.Backup(testDir+"/repository1" /*quickMode=*/, false, threads, "fourth", false, false, 0, false, 1024, 1024)
 	backupManager.SnapshotManager.PruneSnapshots("host1", "host1" /*revisions*/, nil /*tags*/, nil /*retentions*/, nil,
 		/*exhaustive*/ false /*exclusive=*/, true /*ignoredIDs*/, nil /*dryRun*/, false /*deleteOnly*/, false /*collectOnly*/, false, 1)
@@ -406,8 +376,8 @@ func TestBackupManager(t *testing.T) {
 	if numberOfSnapshots != 3 {
 		t.Errorf("Expected 3 snapshots but got %d", numberOfSnapshots)
 	}
-	backupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1" /*revisions*/, []int{2, 3, 4} /*tag*/, "" /*showStatistics*/, false,
+	backupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1", /*revisions*/ []int{2, 3, 4}, /*tag*/ "", /*showStatistics*/ false,
-		/*showTabular*/ false /*checkFiles*/, false /*checkChunks*/, false /*searchFossils*/, false /*resurrect*/, false /*rewiret*/, false, 1 /*allowFailures*/, false)
+	    /*showTabular*/ false, /*checkFiles*/ false, /*checkChunks*/ false, /*searchFossils*/ false, /*resurrect*/ false, /*rewiret*/ false, 1, /*allowFailures*/ false)
 
 	/*buf := make([]byte, 1<<16)
 	  runtime.Stack(buf, true)
@@ -416,7 +386,7 @@ func TestBackupManager(t *testing.T) {
 
 // Create file with random file with certain seed
 func createRandomFileSeeded(path string, maxSize int, seed int64) {
-	r := rand.New(rand.NewSource(seed))
+	rand.Seed(seed)
 	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
 	if err != nil {
 		LOG_ERROR("RANDOM_FILE", "Can't open %s for writing: %v", path, err)
@@ -433,7 +403,7 @@ func createRandomFileSeeded(path string, maxSize int, seed int64) {
 		if bytes > cap(buffer) {
 			bytes = cap(buffer)
 		}
-		r.Read(buffer[:bytes])
+		rand.Read(buffer[:bytes])
 		bytes, err = file.Write(buffer[:bytes])
 		if err != nil {
 			LOG_ERROR("RANDOM_FILE", "Failed to write to %s: %v", path, err)
@@ -444,7 +414,7 @@ func createRandomFileSeeded(path string, maxSize int, seed int64) {
 }
 
 func corruptFile(path string, start int, length int, seed int64) {
-	r := rand.New(rand.NewSource(seed))
+	rand.Seed(seed)
 
 	file, err := os.OpenFile(path, os.O_WRONLY, 0644)
 	if err != nil {
@@ -465,7 +435,7 @@ func corruptFile(path string, start int, length int, seed int64) {
 	}
 
 	buffer := make([]byte, length)
-	r.Read(buffer)
+	rand.Read(buffer)
 
 	_, err = file.Write(buffer)
 	if err != nil {
@@ -508,9 +478,9 @@ func TestPersistRestore(t *testing.T) {
 	maxFileSize := 1000000
 	//maxFileSize := 200000
 
-	createRandomFileSeeded(testDir+"/repository1/file1", maxFileSize, 1)
+	createRandomFileSeeded(testDir+"/repository1/file1", maxFileSize,1)
-	createRandomFileSeeded(testDir+"/repository1/file2", maxFileSize, 2)
+	createRandomFileSeeded(testDir+"/repository1/file2", maxFileSize,2)
-	createRandomFileSeeded(testDir+"/repository1/dir1/file3", maxFileSize, 3)
+	createRandomFileSeeded(testDir+"/repository1/dir1/file3", maxFileSize,3)
 
 	threads := 1
 
@@ -560,83 +530,85 @@ func TestPersistRestore(t *testing.T) {
 
 	// do unencrypted backup
 	SetDuplicacyPreferencePath(testDir + "/repository1/.duplicacy")
-	unencBackupManager := CreateBackupManager("host1", unencStorage, testDir, "", nil)
+	unencBackupManager := CreateBackupManager("host1", unencStorage, testDir, "", "", "", false)
 	unencBackupManager.SetupSnapshotCache("default")
 
 	SetDuplicacyPreferencePath(testDir + "/repository1/.duplicacy")
 	unencBackupManager.Backup(testDir+"/repository1" /*quickMode=*/, true, threads, "first", false, false, 0, false, 1024, 1024)
 	time.Sleep(time.Duration(delay) * time.Second)
 
+
 	// do encrypted backup
 	SetDuplicacyPreferencePath(testDir + "/repository1/.duplicacy")
-	encBackupManager := CreateBackupManager("host1", storage, testDir, password, nil)
+	encBackupManager := CreateBackupManager("host1", storage, testDir, password, "", "", false)
 	encBackupManager.SetupSnapshotCache("default")
 
 	SetDuplicacyPreferencePath(testDir + "/repository1/.duplicacy")
 	encBackupManager.Backup(testDir+"/repository1" /*quickMode=*/, true, threads, "first", false, false, 0, false, 1024, 1024)
 	time.Sleep(time.Duration(delay) * time.Second)
 
+
 	// check snapshots
-	unencBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1" /*revisions*/, []int{1} /*tag*/, "",
+	unencBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1", /*revisions*/ []int{1}, /*tag*/ "",
-		/*showStatistics*/ true /*showTabular*/, false /*checkFiles*/, true /*checkChunks*/, false,
+		/*showStatistics*/ true, /*showTabular*/ false, /*checkFiles*/ true, /*checkChunks*/ false,
-		/*searchFossils*/ false /*resurrect*/, false /*rewiret*/, false, 1 /*allowFailures*/, false)
+		/*searchFossils*/ false, /*resurrect*/ false, /*rewiret*/ false, 1, /*allowFailures*/ false)
-
-	encBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1" /*revisions*/, []int{1} /*tag*/, "",
-		/*showStatistics*/ true /*showTabular*/, false /*checkFiles*/, true /*checkChunks*/, false,
-		/*searchFossils*/ false /*resurrect*/, false /*rewiret*/, false, 1 /*allowFailures*/, false)
 
+	encBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1", /*revisions*/ []int{1}, /*tag*/ "",
+		/*showStatistics*/ true, /*showTabular*/ false, /*checkFiles*/ true, /*checkChunks*/ false,
+		 /*searchFossils*/ false, /*resurrect*/ false, /*rewiret*/ false, 1, /*allowFailures*/ false)
+		
 	// check functions
 	checkAllUncorrupted := func(cmpRepository string) {
-		for _, f := range []string{"file1", "file2", "dir1/file3"} {
+			for _, f := range []string{"file1", "file2", "dir1/file3"} {
-			if _, err := os.Stat(testDir + cmpRepository + "/" + f); os.IsNotExist(err) {
+				if _, err := os.Stat(testDir + cmpRepository + "/" + f); os.IsNotExist(err) {
-				t.Errorf("File %s does not exist", f)
+					t.Errorf("File %s does not exist", f)
-				continue
+					continue
-			}
+				}
 
-			hash1 := getFileHash(testDir + "/repository1/" + f)
+				hash1 := getFileHash(testDir + "/repository1/" + f)
-			hash2 := getFileHash(testDir + cmpRepository + "/" + f)
+				hash2 := getFileHash(testDir + cmpRepository + "/" + f)
-			if hash1 != hash2 {
+				if hash1 != hash2 {
-				t.Errorf("File %s has different hashes: %s vs %s", f, hash1, hash2)
+					t.Errorf("File %s has different hashes: %s vs %s", f, hash1, hash2)
-			}
+				}
 		}
 	}
 	checkMissingFile := func(cmpRepository string, expectMissing string) {
-		for _, f := range []string{"file1", "file2", "dir1/file3"} {
+			for _, f := range []string{"file1", "file2", "dir1/file3"} {
-			_, err := os.Stat(testDir + cmpRepository + "/" + f)
+				_, err := os.Stat(testDir + cmpRepository + "/" + f)
-			if err == nil {
+				if err==nil {
-				if f == expectMissing {
+					if f==expectMissing {
-					t.Errorf("File %s exists, expected to be missing", f)
+						t.Errorf("File %s exists, expected to be missing", f)
+					}
+					continue
 				}
-				continue
+				if os.IsNotExist(err) {
-			}
+					if f!=expectMissing {
-			if os.IsNotExist(err) {
+						t.Errorf("File %s does not exist", f)
-				if f != expectMissing {
+					}
-					t.Errorf("File %s does not exist", f)
+					continue
 				}
-				continue
-			}
 
-			hash1 := getFileHash(testDir + "/repository1/" + f)
+				hash1 := getFileHash(testDir + "/repository1/" + f)
-			hash2 := getFileHash(testDir + cmpRepository + "/" + f)
+				hash2 := getFileHash(testDir + cmpRepository + "/" + f)
-			if hash1 != hash2 {
+				if hash1 != hash2 {
-				t.Errorf("File %s has different hashes: %s vs %s", f, hash1, hash2)
+					t.Errorf("File %s has different hashes: %s vs %s", f, hash1, hash2)
-			}
+				}
 		}
 	}
-	checkCorruptedFile := func(cmpRepository string, expectCorrupted string) {
+	checkCorruptedFile  := func(cmpRepository string, expectCorrupted string) {
 		for _, f := range []string{"file1", "file2", "dir1/file3"} {
 			if _, err := os.Stat(testDir + cmpRepository + "/" + f); os.IsNotExist(err) {
 				t.Errorf("File %s does not exist", f)
 				continue
 			}
-
+	
 			hash1 := getFileHash(testDir + "/repository1/" + f)
 			hash2 := getFileHash(testDir + cmpRepository + "/" + f)
-			if f == expectCorrupted {
+			if (f==expectCorrupted) {
 				if hash1 == hash2 {
 					t.Errorf("File %s has same hashes, expected to be corrupted: %s vs %s", f, hash1, hash2)
 				}
-
+	
 			} else {
 				if hash1 != hash2 {
 					t.Errorf("File %s has different hashes: %s vs %s", f, hash1, hash2)
@@ -647,35 +619,27 @@ func TestPersistRestore(t *testing.T) {
 
 	// test restore all uncorrupted to repository3
 	SetDuplicacyPreferencePath(testDir + "/repository3/.duplicacy")
-	failedFiles := unencBackupManager.Restore(testDir+"/repository3", 1, &RestoreOptions{
+	failedFiles := unencBackupManager.Restore(testDir+"/repository3", threads /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, false,
-		Threads:        threads,
+		 /*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, false)
-		Patterns:       nil,
-		InPlace:        true,
-		QuickMode:      false,
-		Overwrite:      false,
-		DeleteMode:     false,
-		ShowStatistics: false,
-		AllowFailures:  false,
-	})
 	assertRestoreFailures(t, failedFiles, 0)
 	checkAllUncorrupted("/repository3")
 
 	// test for corrupt files and -persist
-	// corrupt a chunk
+	// corrupt a chunk 
 	chunkToCorrupt1 := "/4d/538e5dfd2b08e782bfeb56d1360fb5d7eb9d8c4b2531cc2fca79efbaec910c"
-	// this should affect file1
+		// this should affect file1
 	chunkToCorrupt2 := "/2b/f953a766d0196ce026ae259e76e3c186a0e4bcd3ce10f1571d17f86f0a5497"
-	// this should affect dir1/file3
+		// this should affect dir1/file3
-
+	
 	for i := 0; i < 2; i++ {
-		if i == 0 {
+		if i==0 {
 			// test corrupt chunks
 			corruptFile(testDir+"/unenc_storage"+"/chunks"+chunkToCorrupt1, 128, 128, 4)
 			corruptFile(testDir+"/enc_storage"+"/chunks"+chunkToCorrupt2, 128, 128, 4)
 		} else {
 			// test missing chunks
-			os.Remove(testDir + "/unenc_storage" + "/chunks" + chunkToCorrupt1)
+			os.Remove(testDir+"/unenc_storage"+"/chunks"+chunkToCorrupt1)
-			os.Remove(testDir + "/enc_storage" + "/chunks" + chunkToCorrupt2)
+			os.Remove(testDir+"/enc_storage"+"/chunks"+chunkToCorrupt2)
 		}
 
 		// This is to make sure that allowFailures is set to true.  Note that this is not needed
@@ -690,44 +654,30 @@ func TestPersistRestore(t *testing.T) {
 
 		// check snapshots with --persist (allowFailures == true)
 		// this would cause a panic and os.Exit from duplicacy_log if allowFailures == false
-		unencBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1" /*revisions*/, []int{1} /*tag*/, "",
+		unencBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1", /*revisions*/ []int{1}, /*tag*/ "",
-			/*showStatistics*/ true /*showTabular*/, false /*checkFiles*/, true /*checkChunks*/, false,
+			/*showStatistics*/ true, /*showTabular*/ false, /*checkFiles*/ true, /*checkChunks*/ false,
-			/*searchFossils*/ false /*resurrect*/, false /*rewrite*/, false, 1 /*allowFailures*/, true)
+			/*searchFossils*/ false, /*resurrect*/ false, /*rewrite*/ false, 1, /*allowFailures*/ true)
 
-		encBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1" /*revisions*/, []int{1} /*tag*/, "",
+		encBackupManager.SnapshotManager.CheckSnapshots( /*snapshotID*/ "host1", /*revisions*/ []int{1}, /*tag*/ "",
-			/*showStatistics*/ true /*showTabular*/, false /*checkFiles*/, true /*checkChunks*/, false,
+			/*showStatistics*/ true, /*showTabular*/ false, /*checkFiles*/ true, /*checkChunks*/ false,
-			/*searchFossils*/ false /*resurrect*/, false /*rewrite*/, false, 1 /*allowFailures*/, true)
+			/*searchFossils*/ false, /*resurrect*/ false, /*rewrite*/ false, 1, /*allowFailures*/ true)
 
+	
 		// test restore corrupted, inPlace = true, corrupted files will have hash failures
-		os.RemoveAll(testDir + "/repository2")
+		os.RemoveAll(testDir+"/repository2")
 		SetDuplicacyPreferencePath(testDir + "/repository2/.duplicacy")
-		failedFiles = unencBackupManager.Restore(testDir+"/repository2", 1, &RestoreOptions{
+		failedFiles = unencBackupManager.Restore(testDir+"/repository2", threads /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, false,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, true)
-			Patterns:       nil,
-			InPlace:        true,
-			QuickMode:      false,
-			Overwrite:      false,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  true,
-		})
 		assertRestoreFailures(t, failedFiles, 1)
 
 		// check restore, expect file1 to be corrupted
 		checkCorruptedFile("/repository2", "file1")
 
-		os.RemoveAll(testDir + "/repository2")
+		
+		os.RemoveAll(testDir+"/repository2")
 		SetDuplicacyPreferencePath(testDir + "/repository2/.duplicacy")
-		failedFiles = encBackupManager.Restore(testDir+"/repository2", 1, &RestoreOptions{
+		failedFiles = encBackupManager.Restore(testDir+"/repository2", threads /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, false,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, true)
-			Patterns:       nil,
-			InPlace:        true,
-			QuickMode:      false,
-			Overwrite:      false,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  true,
-		})
 		assertRestoreFailures(t, failedFiles, 1)
 
 		// check restore, expect file3 to be corrupted
@@ -735,35 +685,20 @@ func TestPersistRestore(t *testing.T) {
 
 		//SetLoggingLevel(DEBUG)
 		// test restore corrupted, inPlace = false, corrupted files will be missing
-		os.RemoveAll(testDir + "/repository2")
+		os.RemoveAll(testDir+"/repository2")
 		SetDuplicacyPreferencePath(testDir + "/repository2/.duplicacy")
-		failedFiles = unencBackupManager.Restore(testDir+"/repository2", 1, &RestoreOptions{
+		failedFiles = unencBackupManager.Restore(testDir+"/repository2", threads /*inPlace=*/, false /*quickMode=*/, false, threads /*overwrite=*/, false,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, true)
-			Patterns:       nil,
-			InPlace:        false,
-			QuickMode:      false,
-			Overwrite:      false,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  true,
-		})
 		assertRestoreFailures(t, failedFiles, 1)
 
 		// check restore, expect file1 to be corrupted
 		checkMissingFile("/repository2", "file1")
 
-		os.RemoveAll(testDir + "/repository2")
+		
+		os.RemoveAll(testDir+"/repository2")
 		SetDuplicacyPreferencePath(testDir + "/repository2/.duplicacy")
-		failedFiles = encBackupManager.Restore(testDir+"/repository2", 1, &RestoreOptions{
+		failedFiles = encBackupManager.Restore(testDir+"/repository2", threads /*inPlace=*/, false /*quickMode=*/, false, threads /*overwrite=*/, false,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, true)
-			Patterns:       nil,
-			InPlace:        false,
-			QuickMode:      false,
-			Overwrite:      false,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  true,
-		})
 		assertRestoreFailures(t, failedFiles, 1)
 
 		// check restore, expect file3 to be corrupted
@@ -772,60 +707,28 @@ func TestPersistRestore(t *testing.T) {
 		// test restore corrupted files from different backups, inPlace = true
 		// with overwrite=true, corrupted file1 from unenc will be restored correctly from enc
 		// the latter will not touch the existing file3 with correct hash
-		os.RemoveAll(testDir + "/repository2")
+		os.RemoveAll(testDir+"/repository2")
-		failedFiles = unencBackupManager.Restore(testDir+"/repository2", 1, &RestoreOptions{
+		failedFiles = unencBackupManager.Restore(testDir+"/repository2", threads /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, false,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, true)
-			Patterns:       nil,
-			InPlace:        true,
-			QuickMode:      false,
-			Overwrite:      false,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  true,
-		})
 		assertRestoreFailures(t, failedFiles, 1)
 
-		failedFiles = encBackupManager.Restore(testDir+"/repository2", 1, &RestoreOptions{
+		failedFiles = encBackupManager.Restore(testDir+"/repository2", threads /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, true,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, true)
-			Patterns:       nil,
-			InPlace:        true,
-			QuickMode:      false,
-			Overwrite:      true,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  true,
-		})
 		assertRestoreFailures(t, failedFiles, 0)
 		checkAllUncorrupted("/repository2")
 
 		// restore to repository3, with overwrite and allowFailures (true/false), quickMode = false (use hashes)
 		// should always succeed as uncorrupted files already exist with correct hash, so these will be ignored
 		SetDuplicacyPreferencePath(testDir + "/repository3/.duplicacy")
-		failedFiles = unencBackupManager.Restore(testDir+"/repository3", 1, &RestoreOptions{
+		failedFiles = unencBackupManager.Restore(testDir+"/repository3", threads /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, true,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, false)
-			Patterns:       nil,
-			InPlace:        true,
-			QuickMode:      false,
-			Overwrite:      true,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  false,
-		})
 		assertRestoreFailures(t, failedFiles, 0)
 		checkAllUncorrupted("/repository3")
 
-		failedFiles = unencBackupManager.Restore(testDir+"/repository3", 1, &RestoreOptions{
+		failedFiles = unencBackupManager.Restore(testDir+"/repository3", threads /*inPlace=*/, true /*quickMode=*/, false, threads /*overwrite=*/, true,
-			Threads:        threads,
+			/*deleteMode=*/ false /*setowner=*/, false /*showStatistics=*/, false /*patterns=*/, nil /*allowFailures=*/, true)
-			Patterns:       nil,
-			InPlace:        true,
-			QuickMode:      false,
-			Overwrite:      true,
-			DeleteMode:     false,
-			ShowStatistics: false,
-			AllowFailures:  true,
-		})
 		assertRestoreFailures(t, failedFiles, 0)
 		checkAllUncorrupted("/repository3")
 	}
 
-}
+}

src/duplicacy_config.go

@@ -85,8 +85,8 @@ type Config struct {
 	FileKey []byte `json:"-"`
 
 	// for erasure coding
-	DataShards int `json:"data-shards"`
+	DataShards int `json:'data-shards'`
-	ParityShards int `json:"parity-shards"`
+	ParityShards int `json:'parity-shards'`
 
 	// for RSA encryption
 	rsaPrivateKey *rsa.PrivateKey

src/duplicacy_entry.go

@@ -4,11 +4,8 @@
 package duplicacy
 
 import (
-	"bytes"
-	"crypto/sha256"
 	"encoding/base64"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -19,13 +16,11 @@ import (
 	"strconv"
 	"strings"
 	"time"
+	"bytes"
+	"crypto/sha256"
 
-	"github.com/vmihailenco/msgpack"
+    "github.com/vmihailenco/msgpack"
-)
 
-const (
-	entryHardLinkRootChunkMarker   = -9
-	entryHardLinkTargetChunkMarker = -10
 )
 
 // This is the hidden directory in the repository for storing various files.
@@ -98,7 +93,7 @@ func CreateEntryFromFileInfo(fileInfo os.FileInfo, directory string) *Entry {
 		Mode: uint32(mode),
 	}
 
-	GetOwner(entry, fileInfo)
+	GetOwner(entry, &fileInfo)
 
 	return entry
 }
@@ -115,45 +110,15 @@ func (entry *Entry) Copy() *Entry {
 		UID: entry.UID,
 		GID: entry.GID,
 
-		StartChunk:  entry.StartChunk,
+		StartChunk: entry.StartChunk,
 		StartOffset: entry.StartOffset,
-		EndChunk:    entry.EndChunk,
+		EndChunk: entry.EndChunk,
-		EndOffset:   entry.EndOffset,
+		EndOffset: entry.EndOffset,
 
 		Attributes: entry.Attributes,
 	}
 }
 
-func (entry *Entry) HardLinkTo(target *Entry, startChunk int, endChunk int) *Entry {
-	endOffset := target.EndOffset
-	link := entry.Link
-
-	if !target.IsFile() {
-		startChunk = target.StartChunk
-		endChunk = entry.EndChunk
-		endOffset = entry.EndOffset
-		link = target.Link
-	}
-	return &Entry{
-		Path: entry.Path,
-		Size: target.Size,
-		Time: target.Time,
-		Mode: target.Mode,
-		Link: link,
-		Hash: target.Hash,
-
-		UID: target.UID,
-		GID: target.GID,
-
-		StartChunk:  startChunk,
-		StartOffset: target.StartOffset,
-		EndChunk:    endChunk,
-		EndOffset:   endOffset,
-
-		Attributes: target.Attributes,
-	}
-}
-
 // CreateEntryFromJSON creates an entry from a json description.
 func (entry *Entry) UnmarshalJSON(description []byte) (err error) {
 
@@ -397,12 +362,12 @@ func (entry *Entry) EncodeMsgpack(encoder *msgpack.Encoder) error {
 
 	if entry.Attributes != nil {
 		attributes := make([]string, numberOfAttributes)
-		i := 0
+        i := 0
-		for attribute := range *entry.Attributes {
+        for attribute := range *entry.Attributes {
-			attributes[i] = attribute
+            attributes[i] = attribute
-			i++
+            i++
-		}
+        }
-		sort.Strings(attributes)
+        sort.Strings(attributes)
 		for _, attribute := range attributes {
 			err = encoder.EncodeString(attribute)
 			if err != nil {
@@ -415,7 +380,7 @@ func (entry *Entry) EncodeMsgpack(encoder *msgpack.Encoder) error {
 		}
 	}
 
-	return nil
+    return nil
 }
 
 func (entry *Entry) DecodeMsgpack(decoder *msgpack.Decoder) error {
@@ -523,42 +488,18 @@ func (entry *Entry) IsLink() bool {
 	return entry.Mode&uint32(os.ModeSymlink) != 0
 }
 
-func (entry *Entry) IsSpecial() bool {
-	return entry.Mode&uint32(os.ModeNamedPipe|os.ModeDevice|os.ModeCharDevice|os.ModeSocket) != 0
-}
-
 func (entry *Entry) IsComplete() bool {
 	return entry.Size >= 0
 }
 
-func (entry *Entry) IsHardLinkChild() bool {
-	return (entry.IsFile() && len(entry.Link) > 0 && entry.Link != "/") || (!entry.IsDir() && entry.EndChunk == entryHardLinkTargetChunkMarker)
-}
-
-func (entry *Entry) IsHardLinkRoot() bool {
-	return (entry.IsFile() && entry.Link == "/") || (!entry.IsDir() && entry.EndChunk == entryHardLinkRootChunkMarker)
-}
-
-func (entry *Entry) GetHardLinkId() (int, error) {
-	if entry.IsFile() {
-		i, err := strconv.ParseUint(entry.Link, 16, 64)
-		return int(i), err
-	} else {
-		if entry.EndChunk != entryHardLinkTargetChunkMarker {
-			return 0, errors.New("Entry not marked as hard link child")
-		}
-		return entry.EndOffset, nil
-	}
-}
-
 func (entry *Entry) GetPermissions() os.FileMode {
 	return os.FileMode(entry.Mode) & fileModeMask
 }
 
 func (entry *Entry) GetParent() string {
 	path := entry.Path
-	if path != "" && path[len(path)-1] == '/' {
+	if path != "" && path[len(path) - 1] == '/' {
-		path = path[:len(path)-1]
+		path = path[:len(path) - 1]
 	}
 	i := strings.LastIndex(path, "/")
 	if i == -1 {
@@ -582,64 +523,45 @@ func (entry *Entry) String(maxSizeDigits int) string {
 	return fmt.Sprintf("%*d %s %64s %s", maxSizeDigits, entry.Size, modifiedTime, entry.Hash, entry.Path)
 }
 
-type RestoreMetadataOptions struct {
+func (entry *Entry) RestoreMetadata(fullPath string, fileInfo *os.FileInfo, setOwner bool) bool {
-	SetOwner         bool
-	ExcludeXattrs    bool
-	NormalizeXattrs  bool
-	IncludeFileFlags bool
-	FileFlagsMask    uint32
-}
-
-func (entry *Entry) RestoreMetadata(fullPath string, fileInfo os.FileInfo,
-	options RestoreMetadataOptions) bool {
 
 	if fileInfo == nil {
-		var err error
+		stat, err := os.Lstat(fullPath)
-		fileInfo, err = os.Lstat(fullPath)
+		fileInfo = &stat
 		if err != nil {
-			LOG_ERROR("RESTORE_STAT", "Failed to retrieve the file info on %s: %v", entry.Path, err)
+			LOG_ERROR("RESTORE_STAT", "Failed to retrieve the file info: %v", err)
 			return false
 		}
 	}
 
-	if !options.ExcludeXattrs {
-		err := entry.SetAttributesToFile(fullPath, options.NormalizeXattrs)
-		if err != nil {
-			LOG_WARN("RESTORE_ATTR", "Failed to set extended attributes on %s: %v", entry.Path, err)
-		}
-	}
-
 	// Note that chown can remove setuid/setgid bits so should be called before chmod
-	if options.SetOwner {
+	if setOwner {
 		if !SetOwner(fullPath, entry, fileInfo) {
 			return false
 		}
 	}
 
 	// Only set the permission if the file is not a symlink
-	if !entry.IsLink() && fileInfo.Mode()&fileModeMask != entry.GetPermissions() {
+	if !entry.IsLink() && (*fileInfo).Mode()&fileModeMask != entry.GetPermissions() {
 		err := os.Chmod(fullPath, entry.GetPermissions())
 		if err != nil {
-			LOG_ERROR("RESTORE_CHMOD", "Failed to set the file permissions on %s: %v", entry.Path, err)
+			LOG_ERROR("RESTORE_CHMOD", "Failed to set the file permissions: %v", err)
 			return false
 		}
 	}
 
 	// Only set the time if the file is not a symlink
-	if !entry.IsLink() && fileInfo.ModTime().Unix() != entry.Time {
+	if !entry.IsLink() && (*fileInfo).ModTime().Unix() != entry.Time {
 		modifiedTime := time.Unix(entry.Time, 0)
 		err := os.Chtimes(fullPath, modifiedTime, modifiedTime)
 		if err != nil {
-			LOG_ERROR("RESTORE_CHTIME", "Failed to set the modification time on %s: %v", entry.Path, err)
+			LOG_ERROR("RESTORE_CHTIME", "Failed to set the modification time: %v", err)
 			return false
 		}
 	}
 
-	if options.IncludeFileFlags {
+	if entry.Attributes != nil && len(*entry.Attributes) > 0 {
-		err := entry.RestoreLateFileFlags(fullPath, fileInfo, options.FileFlagsMask)
+		entry.SetAttributesToFile(fullPath)
-		if err != nil {
-			LOG_WARN("RESTORE_FLAGS", "Failed to set file flags on %s: %v", entry.Path, err)
-		}
 	}
 
 	return true
@@ -674,7 +596,7 @@ func ComparePaths(left string, right string) int {
 	for i := p; i < len(left); i++ {
 		c3 = left[i]
 		if c3 == '/' {
-			last1 = i == len(left)-1
+			last1 = i == len(left) - 1
 			break
 		}
 	}
@@ -684,7 +606,7 @@ func ComparePaths(left string, right string) int {
 	for i := p; i < len(right); i++ {
 		c4 = right[i]
 		if c4 == '/' {
-			last2 = i == len(right)-1
+			last2 = i == len(right) - 1
 			break
 		}
 	}
@@ -772,39 +694,10 @@ func (files FileInfoCompare) Less(i, j int) bool {
 	}
 }
 
-type EntryListerOptions struct {
+// ListEntries returns a list of entries representing file and subdirectories under the directory 'path'.  Entry paths
-	Patterns           []string
+// are normalized as relative to 'top'.  'patterns' are used to exclude or include certain files.
-	NoBackupFile       string
+func ListEntries(top string, path string, patterns []string, nobackupFile string, excludeByAttribute bool, listingChannel chan *Entry) (directoryList []*Entry,
-	ExcludeByAttribute bool
+	skippedFiles []string, err error) {
-	ExcludeXattrs      bool
-	NormalizeXattr     bool
-	IncludeFileFlags   bool
-	IncludeSpecials    bool
-}
-
-type EntryLister interface {
-	ListDir(top string, path string, listingChannel chan *Entry, options *EntryListerOptions) (directoryList []*Entry, skippedFiles []string, err error)
-}
-
-type LocalDirectoryLister struct {
-	linkIndex int
-	linkTable map[listEntryLinkKey]int // map unique inode details to initially found path
-}
-
-func NewLocalDirectoryLister() *LocalDirectoryLister {
-	return &LocalDirectoryLister{
-		linkTable: make(map[listEntryLinkKey]int),
-	}
-}
-
-// ListDir returns a list of entries representing file and subdirectories under the directory 'path'.
-// Entry paths are normalized as relative to 'top'.
-func (dl *LocalDirectoryLister) ListDir(top string, path string, listingChannel chan *Entry,
-	options *EntryListerOptions) (directoryList []*Entry, skippedFiles []string, err error) {
-
-	if options == nil {
-		options = &EntryListerOptions{}
-	}
 
 	LOG_DEBUG("LIST_ENTRIES", "Listing %s", path)
 
@@ -817,12 +710,10 @@ func (dl *LocalDirectoryLister) ListDir(top string, path string, listingChannel
 		return directoryList, nil, err
 	}
 
-	patterns := options.Patterns
-
 	// This binary search works because ioutil.ReadDir returns files sorted by Name() by default
-	if options.NoBackupFile != "" {
+	if nobackupFile != "" {
-		ii := sort.Search(len(files), func(ii int) bool { return strings.Compare(files[ii].Name(), options.NoBackupFile) >= 0 })
+		ii := sort.Search(len(files), func(ii int) bool { return strings.Compare(files[ii].Name(), nobackupFile) >= 0 })
-		if ii < len(files) && files[ii].Name() == options.NoBackupFile {
+		if ii < len(files) && files[ii].Name() == nobackupFile {
 			LOG_DEBUG("LIST_NOBACKUP", "%s is excluded due to nobackup file", path)
 			return directoryList, skippedFiles, nil
 		}
@@ -844,44 +735,13 @@ func (dl *LocalDirectoryLister) ListDir(top string, path string, listingChannel
 		if f.Name() == DUPLICACY_DIRECTORY {
 			continue
 		}
-
 		entry := CreateEntryFromFileInfo(f, normalizedPath)
 		if len(patterns) > 0 && !MatchPath(entry.Path, patterns) {
 			continue
 		}
-
-		linkKey, isHardLinked := entry.getHardLinkKey(f)
-		if isHardLinked {
-			if linkIndex, seen := dl.linkTable[linkKey]; seen {
-				if linkIndex == -1 {
-					LOG_DEBUG("LIST_EXCLUDE", "%s was excluded or skipped (hard link)", entry.Path)
-					continue
-				}
-
-				entry.Size = 0
-				if entry.IsFile() {
-					entry.Link = strconv.FormatInt(int64(linkIndex), 16)
-				} else {
-					entry.EndChunk = entryHardLinkTargetChunkMarker
-					entry.EndOffset = linkIndex
-				}
-				listingChannel <- entry
-				continue
-			} else {
-				if entry.IsFile() {
-					entry.Link = "/"
-				} else {
-					entry.EndChunk = entryHardLinkRootChunkMarker
-				}
-				dl.linkTable[linkKey] = -1
-			}
-		}
-
-		fullPath := joinPath(top, entry.Path)
-
 		if entry.IsLink() {
 			isRegular := false
-			isRegular, entry.Link, err = Readlink(fullPath)
+			isRegular, entry.Link, err = Readlink(joinPath(top, entry.Path))
 			if err != nil {
 				LOG_WARN("LIST_LINK", "Failed to read the symlink %s: %v", entry.Path, err)
 				skippedFiles = append(skippedFiles, entry.Path)
@@ -891,7 +751,7 @@ func (dl *LocalDirectoryLister) ListDir(top string, path string, listingChannel
 			if isRegular {
 				entry.Mode ^= uint32(os.ModeSymlink)
 			} else if path == "" && (filepath.IsAbs(entry.Link) || filepath.HasPrefix(entry.Link, `\\`)) && !strings.HasPrefix(entry.Link, normalizedTop) {
-				stat, err := os.Stat(fullPath)
+				stat, err := os.Stat(joinPath(top, entry.Path))
 				if err != nil {
 					LOG_WARN("LIST_LINK", "Failed to read the symlink: %v", err)
 					skippedFiles = append(skippedFiles, entry.Path)
@@ -909,35 +769,19 @@ func (dl *LocalDirectoryLister) ListDir(top string, path string, listingChannel
 				}
 				entry = newEntry
 			}
-		} else if options.IncludeSpecials && entry.IsSpecial() {
-			if err := entry.ReadSpecial(fullPath, f); err != nil {
-				LOG_WARN("LIST_DEV", "Failed to save device node %s: %v", entry.Path, err)
-				skippedFiles = append(skippedFiles, entry.Path)
-				continue
-			}
 		}
 
-		if !options.ExcludeXattrs {
+		entry.ReadAttributes(top)
-			if err := entry.ReadAttributes(f, fullPath, false); err != nil {
-				LOG_WARN("LIST_ATTR", "Failed to read xattrs on %s: %v", entry.Path, err)
-			}
-		}
 
-		// if the flags are already in the FileInfo we can keep them
+		if excludeByAttribute && entry.Attributes != nil && excludedByAttribute(*entry.Attributes) {
-		if !entry.GetFileFlags(f) && options.IncludeFileFlags {
-			if err := entry.ReadFileFlags(f, fullPath); err != nil {
-				LOG_WARN("LIST_ATTR", "Failed to read file flags on %s: %v", entry.Path, err)
-			}
-		}
-
-		if options.ExcludeByAttribute && entry.Attributes != nil && excludedByAttribute(*entry.Attributes) {
 			LOG_DEBUG("LIST_EXCLUDE", "%s is excluded by attribute", entry.Path)
 			continue
 		}
 
-		if isHardLinked {
+		if f.Mode()&(os.ModeNamedPipe|os.ModeSocket|os.ModeDevice) != 0 {
-			dl.linkTable[linkKey] = dl.linkIndex
+			LOG_WARN("LIST_SKIP", "Skipped non-regular file %s", entry.Path)
-			dl.linkIndex++
+			skippedFiles = append(skippedFiles, entry.Path)
+			continue
 		}
 
 		if entry.IsDir() {

src/duplicacy_entry_test.go

@@ -5,8 +5,7 @@
 package duplicacy
 
 import (
-	"bytes"
+	"io/ioutil"
-	"encoding/json"
 	"math/rand"
 	"os"
 	"path/filepath"
@@ -14,10 +13,11 @@ import (
 	"sort"
 	"strings"
 	"testing"
+	"bytes"
+	"encoding/json"
 
-	"github.com/pkg/xattr"
+	"github.com/gilbertchen/xattr"
-
+    "github.com/vmihailenco/msgpack"
-	"github.com/vmihailenco/msgpack"
 )
 
 func TestEntrySort(t *testing.T) {
@@ -165,25 +165,23 @@ func TestEntryOrder(t *testing.T) {
 			continue
 		}
 
-		err := os.WriteFile(fullPath, []byte(file), 0700)
+		err := ioutil.WriteFile(fullPath, []byte(file), 0700)
 		if err != nil {
 			t.Errorf("WriteFile(%s) returned an error: %s", fullPath, err)
 		}
 	}
 
-	lister := NewLocalDirectoryLister()
-
 	directories := make([]*Entry, 0, 4)
 	directories = append(directories, CreateEntry("", 0, 0, 0))
 
 	entries := make([]*Entry, 0, 4)
-	entryChannel := make(chan *Entry, 1024)
+    entryChannel := make(chan *Entry, 1024)
 	entries = append(entries, CreateEntry("", 0, 0, 0))
 
 	for len(directories) > 0 {
 		directory := directories[len(directories)-1]
 		directories = directories[:len(directories)-1]
-		subdirectories, _, err := lister.ListDir(testDir, directory.Path, entryChannel, nil)
+		subdirectories, _, err := ListEntries(testDir, directory.Path, nil, "", false, entryChannel)
 		if err != nil {
 			t.Errorf("ListEntries(%s, %s) returned an error: %s", testDir, directory.Path, err)
 		}
@@ -235,18 +233,8 @@ func TestEntryOrder(t *testing.T) {
 // TestEntryExcludeByAttribute tests the excludeByAttribute parameter to the ListEntries function
 func TestEntryExcludeByAttribute(t *testing.T) {
 
-	var excludeAttrName string
+	if !(runtime.GOOS == "darwin" || runtime.GOOS == "linux") {
-	var excludeAttrValue []byte
+		t.Skip("skipping test not darwin or linux")
-
-	if runtime.GOOS == "darwin" {
-		excludeAttrName = "com.apple.metadata:com_apple_backup_excludeItem"
-		excludeAttrValue = []byte("com.apple.backupd")
-	} else if runtime.GOOS == "linux" {
-		excludeAttrName = "user.duplicacy_exclude"
-	} else if runtime.GOOS == "freebsd" || runtime.GOOS == "netbsd" {
-		excludeAttrName = "duplicacy_exclude"
-	} else {
-		t.Skip("skipping test, not darwin, linux, freebsd, or netbsd")
 	}
 
 	testDir := filepath.Join(os.TempDir(), "duplicacy_test")
@@ -276,7 +264,7 @@ func TestEntryExcludeByAttribute(t *testing.T) {
 			continue
 		}
 
-		err := os.WriteFile(fullPath, []byte(file), 0700)
+		err := ioutil.WriteFile(fullPath, []byte(file), 0700)
 		if err != nil {
 			t.Errorf("WriteFile(%s) returned an error: %s", fullPath, err)
 		}
@@ -285,14 +273,12 @@ func TestEntryExcludeByAttribute(t *testing.T) {
 	for _, file := range DATA {
 		fullPath := filepath.Join(testDir, file)
 		if strings.Contains(file, "exclude") {
-			xattr.Set(fullPath, excludeAttrName, excludeAttrValue)
+			xattr.Setxattr(fullPath, "com.apple.metadata:com_apple_backup_excludeItem", []byte("com.apple.backupd"))
 		}
 	}
 
 	for _, excludeByAttribute := range [2]bool{true, false} {
 		t.Logf("testing excludeByAttribute: %t", excludeByAttribute)
-
-		lister := NewLocalDirectoryLister()
 		directories := make([]*Entry, 0, 4)
 		directories = append(directories, CreateEntry("", 0, 0, 0))
 
@@ -303,11 +289,7 @@ func TestEntryExcludeByAttribute(t *testing.T) {
 		for len(directories) > 0 {
 			directory := directories[len(directories)-1]
 			directories = directories[:len(directories)-1]
-			subdirectories, _, err := lister.ListDir(testDir, directory.Path, entryChannel,
+			subdirectories, _, err := ListEntries(testDir, directory.Path, nil, "", excludeByAttribute, entryChannel)
-				&EntryListerOptions{
-					ExcludeByAttribute: excludeByAttribute,
-				})
-
 			if err != nil {
 				t.Errorf("ListEntries(%s, %s) returned an error: %s", testDir, directory.Path, err)
 			}
@@ -390,4 +372,4 @@ func TestEntryEncoding(t *testing.T) {
 		t.Error("Decoded entry is different than the original one")
 	}
 
-}
+}

src/duplicacy_entrylist.go

@@ -111,12 +111,12 @@ func (entryList *EntryList)createOnDiskFile() error {
 // Add an entry to the entry list
 func (entryList *EntryList)AddEntry(entry *Entry) error {
 
-	if entry.IsFile() {
+	if !entry.IsDir() && !entry.IsLink() {
 		entryList.NumberOfEntries++
 	}
 
 	if !entry.IsComplete() {
-		if !entry.IsFile() {
+		if entry.IsDir() || entry.IsLink() {
 			entry.Size = 0
 		} else {
 			modifiedEntry := ModifiedEntry {

src/duplicacy_keyring_windows.go

@@ -6,7 +6,7 @@ package duplicacy
 
 import (
 	"encoding/json"
-	"os"
+	"io/ioutil"
 	"syscall"
 	"unsafe"
 )
@@ -86,7 +86,7 @@ func keyringGet(key string) (value string) {
 		return ""
 	}
 
-	description, err := os.ReadFile(keyringFile)
+	description, err := ioutil.ReadFile(keyringFile)
 	if err != nil {
 		LOG_DEBUG("KEYRING_READ", "Keyring file not read: %v", err)
 		return ""
@@ -125,7 +125,7 @@ func keyringSet(key string, value string) bool {
 
 	keyring := make(map[string][]byte)
 
-	description, err := os.ReadFile(keyringFile)
+	description, err := ioutil.ReadFile(keyringFile)
 	if err == nil {
 		err = json.Unmarshal(description, &keyring)
 		if err != nil {
@@ -160,7 +160,7 @@ func keyringSet(key string, value string) bool {
 		return false
 	}
 
-	err = os.WriteFile(keyringFile, description, 0600)
+	err = ioutil.WriteFile(keyringFile, description, 0600)
 	if err != nil {
 		LOG_DEBUG("KEYRING_WRITE", "Failed to save the keyring storage to file %s: %v", keyringFile, err)
 		return false

src/duplicacy_preference.go

@@ -6,57 +6,27 @@ package duplicacy
 
 import (
 	"encoding/json"
-	"fmt"
+	"io/ioutil"
 	"os"
 	"path"
 	"reflect"
-	"strconv"
 	"strings"
 )
 
-type flagsMask uint32
-
-func (f flagsMask) MarshalJSON() ([]byte, error) {
-	return json.Marshal(fmt.Sprintf("0x%.8x", f))
-}
-
-func (f *flagsMask) UnmarshalJSON(data []byte) error {
-	var str string
-	if err := json.Unmarshal(data, &str); err != nil {
-		return err
-	}
-	if str[0] == '0' && (str[1] == 'x' || str[1] == 'X') {
-		str = str[2:]
-	}
-
-	v, err := strconv.ParseUint(string(str), 16, 32)
-	if err != nil {
-		return err
-	}
-	*f = flagsMask(v)
-	return nil
-}
-
 // Preference stores options for each storage.
 type Preference struct {
-	Name               string            `json:"name"`
+	Name              string            `json:"name"`
-	SnapshotID         string            `json:"id"`
+	SnapshotID        string            `json:"id"`
-	RepositoryPath     string            `json:"repository"`
+	RepositoryPath    string            `json:"repository"`
-	StorageURL         string            `json:"storage"`
+	StorageURL        string            `json:"storage"`
-	Encrypted          bool              `json:"encrypted"`
+	Encrypted         bool              `json:"encrypted"`
-	BackupProhibited   bool              `json:"no_backup"`
+	BackupProhibited  bool              `json:"no_backup"`
-	RestoreProhibited  bool              `json:"no_restore"`
+	RestoreProhibited bool              `json:"no_restore"`
-	DoNotSavePassword  bool              `json:"no_save_password"`
+	DoNotSavePassword bool              `json:"no_save_password"`
-	NobackupFile       string            `json:"nobackup_file"`
+	NobackupFile      string            `json:"nobackup_file"`
-	Keys               map[string]string `json:"keys"`
+	Keys              map[string]string `json:"keys"`
-	FiltersFile        string            `json:"filters"`
+	FiltersFile       string            `json:"filters"`
-	ExcludeOwner       bool              `json:"exclude_owner"`
+	ExcludeByAttribute bool             `json:"exclude_by_attribute"`
-	ExcludeByAttribute bool              `json:"exclude_by_attribute"`
-	ExcludeXattrs      bool              `json:"exclude_xattrs"`
-	NormalizeXattrs    bool              `json:"normalize_xattrs"`
-	IncludeFileFlags   bool              `json:"include_file_flags"`
-	IncludeSpecials    bool              `json:"include_specials"`
-	FileFlagsMask      flagsMask         `json:"file_flags_mask"`
 }
 
 var preferencePath string
@@ -73,7 +43,7 @@ func LoadPreferences(repository string) bool {
 	}
 
 	if !stat.IsDir() {
-		content, err := os.ReadFile(preferencePath)
+		content, err := ioutil.ReadFile(preferencePath)
 		if err != nil {
 			LOG_ERROR("DOT_DUPLICACY_PATH", "Failed to locate the preference path: %v", err)
 			return false
@@ -91,7 +61,7 @@ func LoadPreferences(repository string) bool {
 		preferencePath = realPreferencePath
 	}
 
-	description, err := os.ReadFile(path.Join(preferencePath, "preferences"))
+	description, err := ioutil.ReadFile(path.Join(preferencePath, "preferences"))
 	if err != nil {
 		LOG_ERROR("PREFERENCE_OPEN", "Failed to read the preference file from repository %s: %v", repository, err)
 		return false
@@ -140,7 +110,7 @@ func SavePreferences() bool {
 	}
 	preferenceFile := path.Join(GetDuplicacyPreferencePath(), "preferences")
 
-	err = os.WriteFile(preferenceFile, description, 0600)
+	err = ioutil.WriteFile(preferenceFile, description, 0600)
 	if err != nil {
 		LOG_ERROR("PREFERENCE_WRITE", "Failed to save the preference file %s: %v", preferenceFile, err)
 		return false

src/duplicacy_shadowcopy_darwin.go

@@ -10,6 +10,7 @@ package duplicacy
 import (
 	"context"
 	"errors"
+	"io/ioutil"
 	"os"
 	"os/exec"
 	"regexp"
@@ -135,7 +136,7 @@ func CreateShadowCopy(top string, shadowCopy bool, timeoutInSeconds int) (shadow
 	}
 
 	// Create mount point
-	snapshotPath, err = os.MkdirTemp("/tmp/", "snp_")
+	snapshotPath, err = ioutil.TempDir("/tmp/", "snp_")
 	if err != nil {
 		LOG_ERROR("VSS_CREATE", "Failed to create temporary mount directory")
 		return top

src/duplicacy_snapshot.go

@@ -9,13 +9,15 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"os"
 	"path/filepath"
-	"sort"
 	"strings"
 	"time"
+	"sort"
+
+    "github.com/vmihailenco/msgpack"
 
-	"github.com/vmihailenco/msgpack"
 )
 
 // Snapshot represents a backup of the repository.
@@ -58,41 +60,19 @@ func CreateEmptySnapshot(id string) (snapshto *Snapshot) {
 
 type DirectoryListing struct {
 	directory string
-	files     *[]Entry
+	files *[]Entry
 }
 
-type ListFilesOptions struct {
+func (snapshot *Snapshot) ListLocalFiles(top string, nobackupFile string,
-	NoBackupFile       string
+								         filtersFile string, excludeByAttribute bool, listingChannel chan *Entry,
-	FiltersFile        string
+								         skippedDirectories *[]string, skippedFiles *[]string) {
-	ExcludeByAttribute bool
-	ExcludeXattrs      bool
-	NormalizeXattr     bool
-	IncludeFileFlags   bool
-	IncludeSpecials    bool
-}
 
-func NewListFilesOptions(p *Preference) *ListFilesOptions {
+	var patterns []string
-	return &ListFilesOptions{
+
-		NoBackupFile:       p.NobackupFile,
+	if filtersFile == "" {
-		FiltersFile:        p.FiltersFile,
+		filtersFile = joinPath(GetDuplicacyPreferencePath(), "filters")
-		ExcludeByAttribute: p.ExcludeByAttribute,
-		ExcludeXattrs:      p.ExcludeXattrs,
-		NormalizeXattr:     p.NormalizeXattrs,
-		IncludeFileFlags:   p.IncludeFileFlags,
-		IncludeSpecials:    p.IncludeSpecials,
 	}
-}
+	patterns = ProcessFilters(filtersFile)
-
-func (snapshot *Snapshot) ListLocalFiles(top string,
-	listingChannel chan *Entry, skippedDirectories *[]string, skippedFiles *[]string,
-	options *ListFilesOptions) {
-
-	if options.FiltersFile == "" {
-		options.FiltersFile = joinPath(GetDuplicacyPreferencePath(), "filters")
-	}
-
-	patterns := ProcessFilters(options.FiltersFile)
-	lister := NewLocalDirectoryLister()
 
 	directories := make([]*Entry, 0, 256)
 	directories = append(directories, CreateEntry("", 0, 0, 0))
@@ -101,16 +81,7 @@ func (snapshot *Snapshot) ListLocalFiles(top string,
 
 		directory := directories[len(directories)-1]
 		directories = directories[:len(directories)-1]
-		subdirectories, skipped, err := lister.ListDir(top, directory.Path, listingChannel,
+		subdirectories, skipped, err := ListEntries(top, directory.Path, patterns, nobackupFile, excludeByAttribute, listingChannel)
-			&EntryListerOptions{
-				Patterns:           patterns,
-				NoBackupFile:       options.NoBackupFile,
-				ExcludeByAttribute: options.ExcludeByAttribute,
-				ExcludeXattrs:      options.ExcludeXattrs,
-				NormalizeXattr:     options.NormalizeXattr,
-				IncludeFileFlags:   options.IncludeFileFlags,
-				IncludeSpecials:    options.IncludeSpecials,
-			})
 		if err != nil {
 			if directory.Path == "" {
 				LOG_ERROR("LIST_FAILURE", "Failed to list the repository root: %v", err)
@@ -133,7 +104,7 @@ func (snapshot *Snapshot) ListLocalFiles(top string,
 	close(listingChannel)
 }
 
-func (snapshot *Snapshot) ListRemoteFiles(config *Config, chunkOperator *ChunkOperator, entryOut func(*Entry) bool) {
+func (snapshot *Snapshot)ListRemoteFiles(config *Config, chunkOperator *ChunkOperator, entryOut func(*Entry) bool) {
 
 	var chunks []string
 	for _, chunkHash := range snapshot.FileSequence {
@@ -153,12 +124,12 @@ func (snapshot *Snapshot) ListRemoteFiles(config *Config, chunkOperator *ChunkOp
 		if chunk != nil {
 			config.PutChunk(chunk)
 		}
-	}()
+	} ()
 
 	// Normally if Version is 0 then the snapshot is created by CLI v2 but unfortunately CLI 3.0.1 does not set the
 	// version bit correctly when copying old backups.  So we need to check the first byte -- if it is '[' then it is
 	// the old format.  The new format starts with a string encoded in msgpack and the first byte can't be '['.
-	if snapshot.Version == 0 || reader.GetFirstByte() == '[' {
+	if snapshot.Version == 0 || reader.GetFirstByte() == '['{
 		LOG_INFO("SNAPSHOT_VERSION", "snapshot %s at revision %d is encoded in an old version format", snapshot.ID, snapshot.Revision)
 		files := make([]*Entry, 0)
 		decoder := json.NewDecoder(reader)
@@ -229,7 +200,7 @@ func (snapshot *Snapshot) ListRemoteFiles(config *Config, chunkOperator *ChunkOp
 
 	} else {
 		LOG_ERROR("SNAPSHOT_VERSION", "snapshot %s at revision %d is encoded in unsupported version %d format",
-			snapshot.ID, snapshot.Revision, snapshot.Version)
+				  snapshot.ID, snapshot.Revision, snapshot.Version)
 		return
 	}
 
@@ -272,7 +243,7 @@ func ProcessFilterFile(patternFile string, includedFiles []string) (patterns []s
 	}
 	includedFiles = append(includedFiles, patternFile)
 	LOG_INFO("SNAPSHOT_FILTER", "Parsing filter file %s", patternFile)
-	patternFileContent, err := os.ReadFile(patternFile)
+	patternFileContent, err := ioutil.ReadFile(patternFile)
 	if err == nil {
 		patternFileLines := strings.Split(string(patternFileContent), "\n")
 		patterns = ProcessFilterLines(patternFileLines, includedFiles)
@@ -292,7 +263,7 @@ func ProcessFilterLines(patternFileLines []string, includedFiles []string) (patt
 			if patternIncludeFile == "" {
 				continue
 			}
-			if !filepath.IsAbs(patternIncludeFile) {
+			if ! filepath.IsAbs(patternIncludeFile) {
 				basePath := ""
 				if len(includedFiles) == 0 {
 					basePath, _ = os.Getwd()
@@ -519,3 +490,4 @@ func encodeSequence(sequence []string) []string {
 
 	return sequenceInHex
 }
+

src/duplicacy_snapshotmanager.go

@@ -18,10 +18,10 @@ import (
 	"sort"
 	"strconv"
 	"strings"
-	"sync"
-	"sync/atomic"
 	"text/tabwriter"
 	"time"
+	"sync"
+	"sync/atomic"
 
 	"github.com/aryann/difflib"
 )
@@ -191,7 +191,7 @@ type SnapshotManager struct {
 	fileChunk     *Chunk
 	snapshotCache *FileStorage
 
-	chunkOperator *ChunkOperator
+	chunkOperator   *ChunkOperator
 }
 
 // CreateSnapshotManager creates a snapshot manager
@@ -738,7 +738,7 @@ func (manager *SnapshotManager) ListSnapshots(snapshotID string, revisionsToList
 				totalFileSize := int64(0)
 				lastChunk := 0
 
-				snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(file *Entry) bool {
+				snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(file *Entry)bool {
 					if file.IsFile() {
 						totalFiles++
 						totalFileSize += file.Size
@@ -753,7 +753,7 @@ func (manager *SnapshotManager) ListSnapshots(snapshotID string, revisionsToList
 					return true
 				})
 
-				snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(file *Entry) bool {
+				snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(file *Entry)bool {
 					if file.IsFile() {
 						LOG_INFO("SNAPSHOT_FILE", "%s", file.String(maxSizeDigits))
 					}
@@ -908,7 +908,7 @@ func (manager *SnapshotManager) CheckSnapshots(snapshotID string, revisionsToChe
 						_, exist, _, err := manager.storage.FindChunk(0, chunkID, false)
 						if err != nil {
 							LOG_WARN("SNAPSHOT_VALIDATE", "Failed to check the existence of chunk %s: %v",
-								chunkID, err)
+							         chunkID, err)
 						} else if exist {
 							LOG_INFO("SNAPSHOT_VALIDATE", "Chunk %s is confirmed to exist", chunkID)
 							continue
@@ -1031,7 +1031,7 @@ func (manager *SnapshotManager) CheckSnapshots(snapshotID string, revisionsToChe
 				if err != nil {
 					LOG_WARN("SNAPSHOT_VERIFY", "Failed to save the verified chunks file: %v", err)
 				} else {
-					LOG_INFO("SNAPSHOT_VERIFY", "Added %d chunks to the list of verified chunks", len(verifiedChunks)-numberOfVerifiedChunks)
+					LOG_INFO("SNAPSHOT_VERIFY", "Added %d chunks to the list of verified chunks", len(verifiedChunks) - numberOfVerifiedChunks)
 				}
 			}
 		}
@@ -1073,7 +1073,7 @@ func (manager *SnapshotManager) CheckSnapshots(snapshotID string, revisionsToChe
 			defer CatchLogException()
 
 			for {
-				chunkIndex, ok := <-chunkChannel
+				chunkIndex, ok := <- chunkChannel
 				if !ok {
 					wg.Done()
 					return
@@ -1093,14 +1093,14 @@ func (manager *SnapshotManager) CheckSnapshots(snapshotID string, revisionsToChe
 
 				elapsedTime := time.Now().Sub(startTime).Seconds()
 				speed := int64(float64(downloadedChunkSize) / elapsedTime)
-				remainingTime := int64(float64(totalChunks-downloadedChunks) / float64(downloadedChunks) * elapsedTime)
+				remainingTime := int64(float64(totalChunks - downloadedChunks) / float64(downloadedChunks) * elapsedTime)
 				percentage := float64(downloadedChunks) / float64(totalChunks) * 100.0
 				LOG_INFO("VERIFY_PROGRESS", "Verified chunk %s (%d/%d), %sB/s %s %.1f%%",
-					chunkID, downloadedChunks, totalChunks, PrettySize(speed), PrettyTime(remainingTime), percentage)
+						chunkID, downloadedChunks, totalChunks, PrettySize(speed), PrettyTime(remainingTime), percentage)
 
 				manager.config.PutChunk(chunk)
 			}
-		}()
+		} ()
 	}
 
 	for chunkIndex := range chunkHashes {
@@ -1289,10 +1289,10 @@ func (manager *SnapshotManager) PrintSnapshot(snapshot *Snapshot) bool {
 	}
 
 	// Don't print the ending bracket
-	fmt.Printf("%s", string(description[:len(description)-2]))
+	fmt.Printf("%s", string(description[:len(description) - 2]))
 	fmt.Printf(",\n  \"files\": [\n")
 	isFirstFile := true
-	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(file *Entry) bool {
+	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func (file *Entry) bool {
 
 		fileDescription, _ := json.MarshalIndent(file.convertToObject(false), "", "    ")
 
@@ -1322,7 +1322,7 @@ func (manager *SnapshotManager) VerifySnapshot(snapshot *Snapshot) bool {
 	}
 
 	files := make([]*Entry, 0)
-	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(file *Entry) bool {
+	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func (file *Entry) bool {
 		if file.IsFile() && file.Size != 0 {
 			file.Attributes = nil
 			files = append(files, file)
@@ -1426,7 +1426,7 @@ func (manager *SnapshotManager) RetrieveFile(snapshot *Snapshot, file *Entry, la
 func (manager *SnapshotManager) FindFile(snapshot *Snapshot, filePath string, suppressError bool) *Entry {
 
 	var found *Entry
-	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(entry *Entry) bool {
+	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func (entry *Entry) bool {
 		if entry.Path == filePath {
 			found = entry
 			return false
@@ -1479,8 +1479,8 @@ func (manager *SnapshotManager) PrintFile(snapshotID string, revision int, path
 
 	file := manager.FindFile(snapshot, path, false)
 	if !manager.RetrieveFile(snapshot, file, nil, func(chunk []byte) {
-		fmt.Printf("%s", chunk)
+			fmt.Printf("%s", chunk)
-	}) {
+		}) {
 		LOG_ERROR("SNAPSHOT_RETRIEVE", "File %s is corrupted in snapshot %s at revision %d",
 			path, snapshot.ID, snapshot.Revision)
 		return false
@@ -1491,8 +1491,7 @@ func (manager *SnapshotManager) PrintFile(snapshotID string, revision int, path
 
 // Diff compares two snapshots, or two revision of a file if the file argument is given.
 func (manager *SnapshotManager) Diff(top string, snapshotID string, revisions []int,
-	filePath string, compareByHash bool,
+	filePath string, compareByHash bool, nobackupFile string, filtersFile string, excludeByAttribute bool) bool {
-	options *ListFilesOptions) bool {
 
 	LOG_DEBUG("DIFF_PARAMETERS", "top: %s, id: %s, revision: %v, path: %s, compareByHash: %t",
 		top, snapshotID, revisions, filePath, compareByHash)
@@ -1501,7 +1500,7 @@ func (manager *SnapshotManager) Diff(top string, snapshotID string, revisions []
 	defer func() {
 		manager.chunkOperator.Stop()
 		manager.chunkOperator = nil
-	}()
+	} ()
 
 	var leftSnapshot *Snapshot
 	var rightSnapshot *Snapshot
@@ -1517,11 +1516,11 @@ func (manager *SnapshotManager) Diff(top string, snapshotID string, revisions []
 			localListingChannel := make(chan *Entry)
 			go func() {
 				defer CatchLogException()
-				rightSnapshot.ListLocalFiles(top, localListingChannel, nil, nil, options)
+				rightSnapshot.ListLocalFiles(top, nobackupFile, filtersFile, excludeByAttribute, localListingChannel, nil, nil)
-			}()
+			} ()
 
 			for entry := range localListingChannel {
-				entry.Attributes = nil // attributes are not compared
+				entry.Attributes = nil  // attributes are not compared
 				rightSnapshotFiles = append(rightSnapshotFiles, entry)
 			}
 
@@ -1726,7 +1725,7 @@ func (manager *SnapshotManager) ShowHistory(top string, snapshotID string, revis
 	defer func() {
 		manager.chunkOperator.Stop()
 		manager.chunkOperator = nil
-	}()
+	} ()
 
 	var err error
 
@@ -1822,16 +1821,15 @@ func (manager *SnapshotManager) resurrectChunk(fossilPath string, chunkID string
 
 // PruneSnapshots deletes snapshots by revisions, tags, or a retention policy.  The main idea is two-step
 // fossil collection.
+// 1. Delete snapshots specified by revision, retention policy, with a tag.  Find any resulting unreferenced
+//    chunks, and mark them as fossils (by renaming).  After that, create a fossil collection file containing
+//    fossils collected during current run, and temporary files encountered.  Also in the file is the latest
+//    revision for each snapshot id.  Save this file to a local directory.
 //
-//  1. Delete snapshots specified by revision, retention policy, with a tag.  Find any resulting unreferenced
+// 2. On next run, check if there is any new revision for each snapshot.  Or if the lastest revision is too
-//     chunks, and mark them as fossils (by renaming).  After that, create a fossil collection file containing
+//    old, for instance, more than 7 days.  This step is to identify snapshots that were being created while
-//     fossils collected during current run, and temporary files encountered.  Also in the file is the latest
+//    step 1 is in progress.  For each fossil reference by any of these snapshots, move them back to the
-//     revision for each snapshot id.  Save this file to a local directory.
+//    normal chunk directory.
-//
-//  2. On next run, check if there is any new revision for each snapshot.  Or if the lastest revision is too
-//     old, for instance, more than 7 days.  This step is to identify snapshots that were being created while
-//     step 1 is in progress.  For each fossil reference by any of these snapshots, move them back to the
-//     normal chunk directory.
 //
 // Note that a snapshot being created when step 2 is in progress may reference a fossil.  To avoid this
 // problem, never remove the lastest revision (unless exclusive is true), and only cache chunks referenced
@@ -1855,7 +1853,7 @@ func (manager *SnapshotManager) PruneSnapshots(selfID string, snapshotID string,
 	defer func() {
 		manager.chunkOperator.Stop()
 		manager.chunkOperator = nil
-	}()
+	} ()
 
 	prefPath := GetDuplicacyPreferencePath()
 	logDir := path.Join(prefPath, "logs")
@@ -2429,13 +2427,7 @@ func (manager *SnapshotManager) pruneSnapshotsExhaustive(referencedFossils map[s
 	}
 
 	allFiles, _ := manager.ListAllFiles(manager.storage, chunkDir)
-	uniqueFiles := make(map[string]bool)
 	for _, file := range allFiles {
-		if _, found := uniqueFiles[file]; found {
-			continue
-		}
-		uniqueFiles[file] = true
-
 		if len(file) == 0 || file[len(file)-1] == '/' {
 			continue
 		}
@@ -2546,7 +2538,7 @@ func (manager *SnapshotManager) CheckSnapshot(snapshot *Snapshot) (err error) {
 			numberOfChunks, len(snapshot.ChunkLengths))
 	}
 
-	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func(entry *Entry) bool {
+	snapshot.ListRemoteFiles(manager.config, manager.chunkOperator, func (entry *Entry) bool {
 
 		if lastEntry != nil && lastEntry.Compare(entry) >= 0 && !strings.Contains(lastEntry.Path, "\ufffd") {
 			err = fmt.Errorf("The entry %s appears before the entry %s", lastEntry.Path, entry.Path)
@@ -2570,7 +2562,7 @@ func (manager *SnapshotManager) CheckSnapshot(snapshot *Snapshot) (err error) {
 		}
 
 		if entry.EndChunk < entry.StartChunk {
-			err = fmt.Errorf("The file %s starts at chunk %d and ends at chunk %d",
+			fmt.Errorf("The file %s starts at chunk %d and ends at chunk %d",
 				entry.Path, entry.StartChunk, entry.EndChunk)
 			return false
 		}
@@ -2600,7 +2592,7 @@ func (manager *SnapshotManager) CheckSnapshot(snapshot *Snapshot) (err error) {
 		if entry.Size != fileSize {
 			err = fmt.Errorf("The file %s has a size of %d but the total size of chunks is %d",
 				entry.Path, entry.Size, fileSize)
-			return false
+		    return false
 		}
 
 		return true
@@ -2649,7 +2641,7 @@ func (manager *SnapshotManager) DownloadFile(path string, derivationKey string)
 			err = manager.storage.UploadFile(0, path, newChunk.GetBytes())
 			if err != nil {
 				LOG_WARN("DOWNLOAD_REWRITE", "Failed to re-uploaded the file %s: %v", path, err)
-			} else {
+			} else{
 				LOG_INFO("DOWNLOAD_REWRITE", "The file %s has been re-uploaded", path)
 			}
 		}

src/duplicacy_storage.go

@@ -756,8 +756,6 @@ func CreateStorage(preference Preference, resetPassword bool, threads int) (stor
 			LOG_ERROR("STORAGE_CREATE", "Failed to load the Storj storage at %s: %v", storageURL, err)
 			return nil
 		}
-		SavePassword(preference, "storj_key", apiKey)
-		SavePassword(preference, "storj_passphrase", passphrase)
 		return storjStorage
 	} else if matched[1] == "smb" {
 		server := matched[3]

src/duplicacy_utils.go

@@ -7,15 +7,14 @@ package duplicacy
 import (
 	"bufio"
 	"crypto/sha256"
-	"encoding/json"
 	"fmt"
 	"io"
 	"os"
 	"regexp"
-	"runtime"
 	"strconv"
 	"strings"
 	"time"
+	"runtime"
 
 	"github.com/gilbertchen/gopass"
 	"golang.org/x/crypto/pbkdf2"
@@ -57,7 +56,7 @@ func IsEmptyFilter(pattern string) bool {
 }
 
 func IsUnspecifiedFilter(pattern string) bool {
-	if pattern[0] != '+' && pattern[0] != '-' && !strings.HasPrefix(pattern, "i:") && !strings.HasPrefix(pattern, "e:") {
+	if pattern[0] != '+' && pattern[0] != '-' && !strings.HasPrefix(pattern, "i:") && !strings.HasPrefix(pattern, "e:")  {
 		return true
 	} else {
 		return false
@@ -276,6 +275,7 @@ func SavePassword(preference Preference, passwordType string, password string) {
 // The following code was modified from the online article  'Matching Wildcards: An Algorithm', by Kirk J. Krauss,
 // Dr. Dobb's, August 26, 2008. However, the version in the article doesn't handle cases like matching 'abcccd'
 // against '*ccd', and the version here fixed that issue.
+//
 func matchPattern(text string, pattern string) bool {
 
 	textLength := len(text)
@@ -469,39 +469,8 @@ func PrintMemoryUsage() {
 		runtime.ReadMemStats(&m)
 
 		LOG_INFO("MEMORY_STATS", "Currently allocated: %s, total allocated: %s, system memory: %s, number of GCs: %d",
-			PrettySize(int64(m.Alloc)), PrettySize(int64(m.TotalAlloc)), PrettySize(int64(m.Sys)), m.NumGC)
+		         PrettySize(int64(m.Alloc)), PrettySize(int64(m.TotalAlloc)), PrettySize(int64(m.Sys)), m.NumGC)
 
 		time.Sleep(time.Second)
 	}
-}
+}
-
-func (entry *Entry) dump() map[string]interface{} {
-
-	object := make(map[string]interface{})
-
-	object["path"] = entry.Path
-	object["size"] = entry.Size
-	object["time"] = entry.Time
-	object["mode"] = entry.Mode
-	object["hash"] = entry.Hash
-	object["link"] = entry.Link
-
-	object["content"] = fmt.Sprintf("%d:%d:%d:%d",
-		entry.StartChunk, entry.StartOffset, entry.EndChunk, entry.EndOffset)
-
-	if entry.UID != -1 && entry.GID != -1 {
-		object["uid"] = entry.UID
-		object["gid"] = entry.GID
-	}
-
-	if entry.Attributes != nil && len(*entry.Attributes) > 0 {
-		object["attributes"] = entry.Attributes
-	}
-
-	return object
-}
-
-func (entry *Entry) dumpString() string {
-	data, _ := json.Marshal(entry.dump())
-	return string(data)
-}

src/duplicacy_utils_darwin.go

@@ -5,34 +5,10 @@
 package duplicacy
 
 import (
-	"encoding/binary"
-	"os"
 	"strings"
-
-	"golang.org/x/sys/unix"
 )
 
-func excludedByAttribute(attributes map[string][]byte) bool {
+func excludedByAttribute(attirbutes map[string][]byte) bool {
-	value, ok := attributes["com.apple.metadata:com_apple_backup_excludeItem"]
+	value, ok := attirbutes["com.apple.metadata:com_apple_backup_excludeItem"]
-	excluded := ok && strings.Contains(string(value), "com.apple.backupd")
+	return ok && strings.Contains(string(value), "com.apple.backupd")
-	if !excluded {
-		flags, ok := attributes[darwinFileFlagsKey]
-		excluded = ok && (binary.LittleEndian.Uint32(flags)&unix.UF_NODUMP) != 0
-	}
-	return excluded
-}
-
-func (entry *Entry) RestoreSpecial(fullPath string) error {
-	mode := entry.Mode & uint32(fileModeMask)
-
-	if entry.Mode&uint32(os.ModeNamedPipe) != 0 {
-		mode |= unix.S_IFIFO
-	} else if entry.Mode&uint32(os.ModeCharDevice) != 0 {
-		mode |= unix.S_IFCHR
-	} else if entry.Mode&uint32(os.ModeDevice) != 0 {
-		mode |= unix.S_IFBLK
-	} else {
-		return nil
-	}
-	return unix.Mknod(fullPath, mode, int(entry.GetRdev()))
 }

src/duplicacy_utils_freebsd.go

@@ -0,0 +1,13 @@
+// Copyright (c) Acrosync LLC. All rights reserved.
+// Free for personal use and commercial trial
+// Commercial use requires per-user licenses available from https://duplicacy.com
+
+package duplicacy
+
+import (
+)
+
+func excludedByAttribute(attirbutes map[string][]byte) bool {
+	_, ok := attirbutes["duplicacy_exclude"]
+	return ok
+}

src/duplicacy_utils_linux.go

@@ -5,34 +5,9 @@
 package duplicacy
 
 import (
-	"encoding/binary"
-	"os"
-
-	"golang.org/x/sys/unix"
 )
 
-func excludedByAttribute(attributes map[string][]byte) bool {
+func excludedByAttribute(attirbutes map[string][]byte) bool {
-	_, excluded := attributes["user.duplicacy_exclude"]
+	_, ok := attirbutes["duplicacy_exclude"]
-	if !excluded {
+	return ok
-		flags, ok := attributes[linuxFileFlagsKey]
-		excluded = ok && (binary.LittleEndian.Uint32(flags)&linux_FS_NODUMP_FL) != 0
-	}
-	return excluded
-}
-
-func (entry *Entry) RestoreSpecial(fullPath string) error {
-	mode := entry.Mode & uint32(fileModeMask)
-
-	if entry.Mode&uint32(os.ModeNamedPipe) != 0 {
-		mode |= unix.S_IFIFO
-	} else if entry.Mode&uint32(os.ModeCharDevice) != 0 {
-		mode |= unix.S_IFCHR
-	} else if entry.Mode&uint32(os.ModeDevice) != 0 {
-		mode |= unix.S_IFBLK
-	} else if entry.Mode&uint32(os.ModeSocket) != 0 {
-		mode |= unix.S_IFSOCK
-	} else {
-		return nil
-	}
-	return unix.Mknod(fullPath, mode, int(entry.GetRdev()))
 }

src/duplicacy_utils_others.go

@@ -2,18 +2,18 @@
 // Free for personal use and commercial trial
 // Commercial use requires per-user licenses available from https://duplicacy.com
 
-//go:build !windows
 // +build !windows
 
 package duplicacy
 
 import (
-	"fmt"
+	"bytes"
 	"os"
 	"path"
+	"path/filepath"
 	"syscall"
 
-	"golang.org/x/sys/unix"
+	"github.com/pkg/xattr"
 )
 
 func Readlink(path string) (isRegular bool, s string, err error) {
@@ -21,19 +21,24 @@ func Readlink(path string) (isRegular bool, s string, err error) {
 	return false, s, err
 }
 
-func GetOwner(entry *Entry, fileInfo os.FileInfo) {
+func GetOwner(entry *Entry, fileInfo *os.FileInfo) {
-	stat := fileInfo.Sys().(*syscall.Stat_t)
+	stat, ok := (*fileInfo).Sys().(*syscall.Stat_t)
-	entry.UID = int(stat.Uid)
+	if ok && stat != nil {
-	entry.GID = int(stat.Gid)
+		entry.UID = int(stat.Uid)
+		entry.GID = int(stat.Gid)
+	} else {
+		entry.UID = -1
+		entry.GID = -1
+	}
 }
 
-func SetOwner(fullPath string, entry *Entry, fileInfo os.FileInfo) bool {
+func SetOwner(fullPath string, entry *Entry, fileInfo *os.FileInfo) bool {
-	stat := fileInfo.Sys().(*syscall.Stat_t)
+	stat, ok := (*fileInfo).Sys().(*syscall.Stat_t)
-	if (int(stat.Uid) != entry.UID || int(stat.Gid) != entry.GID) {
+	if ok && stat != nil && (int(stat.Uid) != entry.UID || int(stat.Gid) != entry.GID) {
 		if entry.UID != -1 && entry.GID != -1 {
 			err := os.Lchown(fullPath, entry.UID, entry.GID)
 			if err != nil {
-				LOG_ERROR("RESTORE_CHOWN", "Failed to change uid or gid on %s: %v", entry.Path, err)
+				LOG_ERROR("RESTORE_CHOWN", "Failed to change uid or gid: %v", err)
 				return false
 			}
 		}
@@ -42,67 +47,43 @@ func SetOwner(fullPath string, entry *Entry, fileInfo os.FileInfo) bool {
 	return true
 }
 
-type listEntryLinkKey struct {
+func (entry *Entry) ReadAttributes(top string) {
-	dev uint64
-	ino uint64
-}
 
-func (entry *Entry) getHardLinkKey(f os.FileInfo) (key listEntryLinkKey, linked bool) {
+	fullPath := filepath.Join(top, entry.Path)
-	if entry.IsDir() {
+	attributes, _ := xattr.List(fullPath)
-		return
+	if len(attributes) > 0 {
+		entry.Attributes = &map[string][]byte{}
+		for _, name := range attributes {
+			attribute, err := xattr.Get(fullPath, name)
+			if err == nil {
+				(*entry.Attributes)[name] = attribute
+			}
+		}
 	}
-	stat := f.Sys().(*syscall.Stat_t)
-	if stat.Nlink <= 1 {
-		return
-	}
-	key.dev = uint64(stat.Dev)
-	key.ino = uint64(stat.Ino)
-	linked = true
-	return
 }
 
-func (entry *Entry) ReadSpecial(fullPath string, fileInfo os.FileInfo) error {
+func (entry *Entry) SetAttributesToFile(fullPath string) {
-	if fileInfo.Mode()&(os.ModeDevice|os.ModeCharDevice) == 0 {
+	names, _ := xattr.List(fullPath)
-		return nil
-	}
-	rdev := uint64(fileInfo.Sys().(*syscall.Stat_t).Rdev)
-	entry.Size = 0
-	entry.StartChunk = int(rdev & 0xFFFFFFFF)
-	entry.StartOffset = int(rdev >> 32)
-	return nil
-}
 
-func (entry *Entry) GetRdev() uint64 {
+	for _, name := range names {
-	return uint64(entry.StartChunk) | uint64(entry.StartOffset)<<32
-}
 
-func (entry *Entry) IsSameSpecial(fileInfo os.FileInfo) bool {
-	stat := fileInfo.Sys().(*syscall.Stat_t)
-	return (uint32(fileInfo.Mode()) == entry.Mode) && (uint64(stat.Rdev) == entry.GetRdev())
-}
 
-func (entry *Entry) FmtSpecial() string {
+		newAttribute, found := (*entry.Attributes)[name]
-	var c string
+		if found {
-	mode := entry.Mode & uint32(os.ModeType)
+			oldAttribute, _ := xattr.Get(fullPath, name)
-
+			if !bytes.Equal(oldAttribute, newAttribute) {
-	if mode&uint32(os.ModeNamedPipe) != 0 {
+				xattr.Set(fullPath, name, newAttribute)
-		c = "p"
+			}
-	} else if mode&uint32(os.ModeCharDevice) != 0 {
+			delete(*entry.Attributes, name)
-		c = "c"
+		} else {
-	} else if mode&uint32(os.ModeDevice) != 0 {
+			xattr.Remove(fullPath, name)
-		c = "b"
+		}
-	} else if mode&uint32(os.ModeSocket) != 0 {
-		c = "s"
-	} else {
-		return ""
 	}
 
-	rdev := entry.GetRdev()
+	for name, attribute := range *entry.Attributes {
-	return fmt.Sprintf("%s (%d, %d)", c, unix.Major(rdev), unix.Minor(rdev))
+		xattr.Set(fullPath, name, attribute)
-}
+	}
 
-func MakeHardlink(source string, target string) error {
-	return unix.Linkat(unix.AT_FDCWD, source, unix.AT_FDCWD, target, 0)
 }
 
 func joinPath(components ...string) string {

src/duplicacy_utils_windows.go

@@ -56,11 +56,7 @@ const (
 
 // Readlink returns the destination of the named symbolic link.
 func Readlink(path string) (isRegular bool, s string, err error) {
-	pPath, err := syscall.UTF16PtrFromString(path)
+	fd, err := syscall.CreateFile(syscall.StringToUTF16Ptr(path), FILE_READ_ATTRIBUTES,
-	if err != nil {
-		return false, "", err
-	}
-	fd, err := syscall.CreateFile(pPath, FILE_READ_ATTRIBUTES,
 		syscall.FILE_SHARE_READ, nil, syscall.OPEN_EXISTING,
 		syscall.FILE_FLAG_OPEN_REPARSE_POINT|syscall.FILE_FLAG_BACKUP_SEMANTICS, 0)
 	if err != nil {
@@ -105,17 +101,20 @@ func Readlink(path string) (isRegular bool, s string, err error) {
 	return false, s, nil
 }
 
-func GetOwner(entry *Entry, fileInfo os.FileInfo) {
+func GetOwner(entry *Entry, fileInfo *os.FileInfo) {
 	entry.UID = -1
 	entry.GID = -1
 }
 
-func SetOwner(fullPath string, entry *Entry, fileInfo os.FileInfo) bool {
+func SetOwner(fullPath string, entry *Entry, fileInfo *os.FileInfo) bool {
 	return true
 }
 
-func MakeHardlink(source string, target string) error {
+func (entry *Entry) ReadAttributes(top string) {
-	return os.Link(source, target)
+}
+
+func (entry *Entry) SetAttributesToFile(fullPath string) {
+
 }
 
 func joinPath(components ...string) string {
@@ -133,28 +132,6 @@ func SplitDir(fullPath string) (dir string, file string) {
 	return fullPath[:i+1], fullPath[i+1:]
 }
 
-func excludedByAttribute(attributes map[string][]byte) bool {
+func excludedByAttribute(attirbutes map[string][]byte) bool {
 	return false
 }
-
-type listEntryLinkKey struct{}
-
-func (entry *Entry) getHardLinkKey(f os.FileInfo) (key listEntryLinkKey, linked bool) {
-	return
-}
-
-func (entry *Entry) ReadSpecial(fullPath string, fileInfo os.FileInfo) error {
-	return nil
-}
-
-func (entry *Entry) IsSameSpecial(fileInfo os.FileInfo) bool {
-	return false
-}
-
-func (entry *Entry) RestoreSpecial(fullPath string) error {
-	return nil
-}
-
-func (entry *Entry) FmtSpecial() string {
-	return ""
-}

src/duplicacy_utils_xbsd.go

@@ -1,38 +0,0 @@
-// Copyright (c) Acrosync LLC. All rights reserved.
-// Free for personal use and commercial trial
-// Commercial use requires per-user licenses available from https://duplicacy.com
-
-//go:build freebsd
-// +build freebsd
-
-package duplicacy
-
-import (
-	"encoding/binary"
-	"os"
-	"syscall"
-)
-
-func excludedByAttribute(attributes map[string][]byte) bool {
-	_, excluded := attributes["duplicacy_exclude"]
-	if !excluded {
-		flags, ok := attributes[bsdFileFlagsKey]
-		excluded = ok && (binary.LittleEndian.Uint32(flags)&bsd_UF_NODUMP) != 0
-	}
-	return excluded
-}
-
-func (entry *Entry) RestoreSpecial(fullPath string) error {
-	mode := entry.Mode & uint32(fileModeMask)
-
-	if entry.Mode&uint32(os.ModeNamedPipe) != 0 {
-		mode |= syscall.S_IFIFO
-	} else if entry.Mode&uint32(os.ModeCharDevice) != 0 {
-		mode |= syscall.S_IFCHR
-	} else if entry.Mode&uint32(os.ModeDevice) != 0 {
-		mode |= syscall.S_IFBLK
-	} else {
-		return nil
-	}
-	return syscall.Mknod(fullPath, mode, entry.GetRdev())
-}

src/duplicacy_xattr.go

@@ -1,35 +0,0 @@
-// Copyright (c) Acrosync LLC. All rights reserved.
-// Free for personal use and commercial trial
-// Commercial use requires per-user licenses available from https://duplicacy.com
-
-package duplicacy
-
-import "os"
-
-func (entry *Entry) ReadAttributes(fi os.FileInfo, fullPath string, normalize bool) error {
-	return entry.readAttributes(fi, fullPath, normalize)
-}
-
-func (entry *Entry) GetFileFlags(fileInfo os.FileInfo) bool {
-	return entry.getFileFlags(fileInfo)
-}
-
-func (entry *Entry) ReadFileFlags(fileInfo os.FileInfo, fullPath string) error {
-	return entry.readFileFlags(fileInfo, fullPath)
-}
-
-func (entry *Entry) RestoreEarlyDirFlags(fullPath string, mask uint32) error {
-	return entry.restoreEarlyDirFlags(fullPath, mask)
-}
-
-func (entry *Entry) RestoreEarlyFileFlags(f *os.File, mask uint32) error {
-	return entry.restoreEarlyFileFlags(f, mask)
-}
-
-func (entry *Entry) RestoreLateFileFlags(fullPath string, fileInfo os.FileInfo, mask uint32) error {
-	return entry.restoreLateFileFlags(fullPath, fileInfo, mask)
-}
-
-func (entry *Entry) SetAttributesToFile(fullPath string, normalize bool) error {
-	return entry.setAttributesToFile(fullPath, normalize)
-}

src/duplicacy_xattr_darwin.go

@@ -1,149 +0,0 @@
-// Copyright (c) Acrosync LLC. All rights reserved.
-// Free for personal use and commercial trial
-// Commercial use requires per-user licenses available from https://duplicacy.com
-
-package duplicacy
-
-import (
-	"bytes"
-	"encoding/binary"
-	"errors"
-	"math"
-	"os"
-	"syscall"
-
-	"github.com/pkg/xattr"
-	"golang.org/x/sys/unix"
-)
-
-const (
-	darwinFileFlagsKey = "\x00bf"
-)
-
-var darwinIsSuperUser bool
-
-func init() {
-	darwinIsSuperUser = unix.Geteuid() == 0
-}
-
-func (entry *Entry) readAttributes(fi os.FileInfo, fullPath string, normalize bool) error {
-	if entry.IsSpecial() {
-		return nil
-	}
-
-	attributes, err := xattr.LList(fullPath)
-	if err != nil {
-		return err
-	}
-
-	if len(attributes) > 0 {
-		entry.Attributes = &map[string][]byte{}
-	}
-	var allErrors error
-	for _, name := range attributes {
-		value, err := xattr.LGet(fullPath, name)
-		if err != nil {
-			allErrors = errors.Join(allErrors, err)
-		} else {
-			(*entry.Attributes)[name] = value
-		}
-	}
-
-	return allErrors
-}
-
-func (entry *Entry) getFileFlags(fileInfo os.FileInfo) bool {
-	stat := fileInfo.Sys().(*syscall.Stat_t)
-	if stat.Flags != 0 {
-		if entry.Attributes == nil {
-			entry.Attributes = &map[string][]byte{}
-		}
-		v := make([]byte, 4)
-		binary.LittleEndian.PutUint32(v, stat.Flags)
-		(*entry.Attributes)[darwinFileFlagsKey] = v
-	}
-	return true
-}
-
-func (entry *Entry) readFileFlags(fileInfo os.FileInfo, fullPath string) error {
-	return nil
-}
-
-func (entry *Entry) setAttributesToFile(fullPath string, normalize bool) error {
-	if entry.Attributes == nil || len(*entry.Attributes) == 0 || entry.IsSpecial() {
-		return nil
-	}
-	attributes := *entry.Attributes
-
-	if _, haveFlags := attributes[darwinFileFlagsKey]; haveFlags && len(attributes) <= 1 {
-		return nil
-	}
-
-	names, err := xattr.LList(fullPath)
-	if err != nil {
-		return err
-	}
-	for _, name := range names {
-		newAttribute, found := attributes[name]
-		if found {
-			oldAttribute, _ := xattr.LGet(fullPath, name)
-			if !bytes.Equal(oldAttribute, newAttribute) {
-				err = errors.Join(err, xattr.LSet(fullPath, name, newAttribute))
-			}
-			delete(attributes, name)
-		} else {
-			err = errors.Join(err, xattr.LRemove(fullPath, name))
-		}
-	}
-
-	for name, attribute := range attributes {
-		if len(name) > 0 && name[0] == '\x00' {
-			continue
-		}
-		err = errors.Join(err, xattr.LSet(fullPath, name, attribute))
-	}
-	return err
-}
-
-func (entry *Entry) restoreEarlyDirFlags(fullPath string, mask uint32) error {
-	return nil
-}
-
-func (entry *Entry) restoreEarlyFileFlags(f *os.File, mask uint32) error {
-	return nil
-}
-
-func (entry *Entry) restoreLateFileFlags(fullPath string, fileInfo os.FileInfo, mask uint32) error {
-	if mask == math.MaxUint32 {
-		return nil
-	}
-
-	if darwinIsSuperUser {
-		mask |= ^uint32(unix.UF_SETTABLE | unix.SF_SETTABLE)
-	} else {
-		mask |= ^uint32(unix.UF_SETTABLE)
-	}
-
-	var flags uint32
-
-	if entry.Attributes != nil {
-		if v, have := (*entry.Attributes)[darwinFileFlagsKey]; have {
-			flags = binary.LittleEndian.Uint32(v)
-		}
-	}
-
-	stat := fileInfo.Sys().(*syscall.Stat_t)
-
-	flags = (flags & ^mask) | (stat.Flags & mask)
-
-	if flags != stat.Flags {
-		f, err := os.OpenFile(fullPath, os.O_RDONLY|unix.O_SYMLINK, 0)
-		if err != nil {
-			return err
-		}
-		err = unix.Fchflags(int(f.Fd()), int(flags))
-		f.Close()
-		return err
-	}
-	return nil
-}

src/duplicacy_xattr_linux.go

@@ -1,234 +0,0 @@
-// Copyright (c) Acrosync LLC. All rights reserved.
-// Free for personal use and commercial trial
-// Commercial use requires per-user licenses available from https://duplicacy.com
-
-package duplicacy
-
-import (
-	"bytes"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"math"
-	"os"
-	"unsafe"
-
-	"github.com/pkg/xattr"
-	"golang.org/x/sys/unix"
-)
-
-const (
-	linux_FS_SECRM_FL        = 0x00000001 /* Secure deletion */
-	linux_FS_UNRM_FL         = 0x00000002 /* Undelete */
-	linux_FS_COMPR_FL        = 0x00000004 /* Compress file */
-	linux_FS_SYNC_FL         = 0x00000008 /* Synchronous updates */
-	linux_FS_IMMUTABLE_FL    = 0x00000010 /* Immutable file */
-	linux_FS_APPEND_FL       = 0x00000020 /* writes to file may only append */
-	linux_FS_NODUMP_FL       = 0x00000040 /* do not dump file */
-	linux_FS_NOATIME_FL      = 0x00000080 /* do not update atime */
-	linux_FS_NOCOMP_FL       = 0x00000400 /* Don't compress */
-	linux_FS_JOURNAL_DATA_FL = 0x00004000 /* Reserved for ext3 */
-	linux_FS_NOTAIL_FL       = 0x00008000 /* file tail should not be merged */
-	linux_FS_DIRSYNC_FL      = 0x00010000 /* dirsync behaviour (directories only) */
-	linux_FS_TOPDIR_FL       = 0x00020000 /* Top of directory hierarchies*/
-	linux_FS_NOCOW_FL        = 0x00800000 /* Do not cow file */
-	linux_FS_PROJINHERIT_FL  = 0x20000000 /* Create with parents projid */
-
-	linuxIocFlagsFileEarly = linux_FS_SECRM_FL | linux_FS_UNRM_FL | linux_FS_COMPR_FL | linux_FS_NODUMP_FL | linux_FS_NOATIME_FL | linux_FS_NOCOMP_FL | linux_FS_JOURNAL_DATA_FL | linux_FS_NOTAIL_FL | linux_FS_NOCOW_FL
-	linuxIocFlagsDirEarly  = linux_FS_TOPDIR_FL | linux_FS_PROJINHERIT_FL
-	linuxIocFlagsLate      = linux_FS_SYNC_FL | linux_FS_IMMUTABLE_FL | linux_FS_APPEND_FL | linux_FS_DIRSYNC_FL
-
-	linuxFileFlagsKey = "\x00lf"
-)
-
-var (
-	errENOTTY error = unix.ENOTTY
-)
-
-func ignoringEINTR(fn func() error) (err error) {
-	for {
-		err = fn()
-		if err != unix.EINTR {
-			break
-		}
-	}
-	return err
-}
-
-func ioctl(f *os.File, request uintptr, attrp *uint32) error {
-	return ignoringEINTR(func() error {
-		argp := uintptr(unsafe.Pointer(attrp))
-
-		_, _, errno := unix.Syscall(unix.SYS_IOCTL, f.Fd(), request, argp)
-		if errno == 0 {
-			return nil
-		} else if errno == unix.ENOTTY {
-			return errENOTTY
-		}
-		return errno
-	})
-}
-
-func (entry *Entry) readAttributes(fi os.FileInfo, fullPath string, normalize bool) error {
-	attributes, err := xattr.LList(fullPath)
-	if err != nil {
-		return err
-	}
-
-	if len(attributes) > 0 {
-		entry.Attributes = &map[string][]byte{}
-	}
-	var allErrors error
-	for _, name := range attributes {
-		value, err := xattr.LGet(fullPath, name)
-		if err != nil {
-			allErrors = errors.Join(allErrors, err)
-		} else {
-			(*entry.Attributes)[name] = value
-		}
-	}
-
-	return allErrors
-}
-
-func (entry *Entry) getFileFlags(fileInfo os.FileInfo) bool {
-	return false
-}
-
-func (entry *Entry) readFileFlags(fileInfo os.FileInfo, fullPath string) error {
-	// the linux file flags interface is quite depressing. The half assed attempt at statx
-	// doesn't even cover the flags we're usually interested in for btrfs
-	if !(entry.IsFile() || entry.IsDir()) {
-		return nil
-	}
-
-	f, err := os.OpenFile(fullPath, os.O_RDONLY|unix.O_NONBLOCK|unix.O_NOFOLLOW|unix.O_NOATIME, 0)
-	if err != nil {
-		return err
-	}
-
-	var flags uint32
-
-	err = ioctl(f, unix.FS_IOC_GETFLAGS, &flags)
-	f.Close()
-	if err != nil {
-		// inappropriate ioctl for device means flags aren't a thing on that FS
-		if err == unix.ENOTTY {
-			return nil
-		}
-		return err
-	}
-
-	if flags != 0 {
-		if entry.Attributes == nil {
-			entry.Attributes = &map[string][]byte{}
-		}
-		v := make([]byte, 4)
-		binary.LittleEndian.PutUint32(v, flags)
-		(*entry.Attributes)[linuxFileFlagsKey] = v
-	}
-	return nil
-}
-
-func (entry *Entry) setAttributesToFile(fullPath string, normalize bool) error {
-	if entry.Attributes == nil || len(*entry.Attributes) == 0 {
-		return nil
-	}
-	attributes := *entry.Attributes
-
-	if _, haveFlags := attributes[linuxFileFlagsKey]; haveFlags && len(attributes) <= 1 {
-		return nil
-	}
-
-	names, err := xattr.LList(fullPath)
-	if err != nil {
-		return err
-	}
-	for _, name := range names {
-		newAttribute, found := (*entry.Attributes)[name]
-		if found {
-			oldAttribute, _ := xattr.LGet(fullPath, name)
-			if !bytes.Equal(oldAttribute, newAttribute) {
-				err = errors.Join(err, xattr.LSet(fullPath, name, newAttribute))
-			}
-			delete(*entry.Attributes, name)
-		} else {
-			err = errors.Join(err, xattr.LRemove(fullPath, name))
-		}
-	}
-
-	for name, attribute := range *entry.Attributes {
-		if len(name) > 0 && name[0] == '\x00' {
-			continue
-		}
-		err = errors.Join(err, xattr.LSet(fullPath, name, attribute))
-	}
-	return err
-}
-
-func (entry *Entry) restoreEarlyDirFlags(fullPath string, mask uint32) error {
-	if entry.Attributes == nil || mask == math.MaxUint32 {
-		return nil
-	}
-	var flags uint32
-
-	if v, have := (*entry.Attributes)[linuxFileFlagsKey]; have {
-		flags = binary.LittleEndian.Uint32(v) & linuxIocFlagsDirEarly & ^mask
-	}
-
-	if flags != 0 {
-		f, err := os.OpenFile(fullPath, os.O_RDONLY|unix.O_DIRECTORY, 0)
-		if err != nil {
-			return err
-		}
-		err = ioctl(f, unix.FS_IOC_SETFLAGS, &flags)
-		f.Close()
-		if err != nil {
-			return fmt.Errorf("Set flags 0x%.8x failed: %w", flags, err)
-		}
-	}
-	return nil
-}
-
-func (entry *Entry) restoreEarlyFileFlags(f *os.File, mask uint32) error {
-	if entry.Attributes == nil || mask == math.MaxUint32 {
-		return nil
-	}
-	var flags uint32
-
-	if v, have := (*entry.Attributes)[linuxFileFlagsKey]; have {
-		flags = binary.LittleEndian.Uint32(v) & linuxIocFlagsFileEarly & ^mask
-	}
-
-	if flags != 0 {
-		err := ioctl(f, unix.FS_IOC_SETFLAGS, &flags)
-		if err != nil {
-			return fmt.Errorf("Set flags 0x%.8x failed: %w", flags, err)
-		}
-	}
-	return nil
-}
-
-func (entry *Entry) restoreLateFileFlags(fullPath string, fileInfo os.FileInfo, mask uint32) error {
-	if entry.IsLink() || entry.Attributes == nil || mask == math.MaxUint32 {
-		return nil
-	}
-	var flags uint32
-
-	if v, have := (*entry.Attributes)[linuxFileFlagsKey]; have {
-		flags = binary.LittleEndian.Uint32(v) & (linuxIocFlagsFileEarly | linuxIocFlagsDirEarly | linuxIocFlagsLate) & ^mask
-	}
-
-	if flags != 0 {
-		f, err := os.OpenFile(fullPath, os.O_RDONLY|unix.O_NOFOLLOW, 0)
-		if err != nil {
-			return err
-		}
-		err = ioctl(f, unix.FS_IOC_SETFLAGS, &flags)
-		f.Close()
-		if err != nil {
-			return fmt.Errorf("Set flags 0x%.8x failed: %w", flags, err)
-		}
-	}
-	return nil
-}

src/duplicacy_xattr_windows.go

@@ -1,35 +0,0 @@
-// Copyright (c) Acrosync LLC. All rights reserved.
-// Free for personal use and commercial trial
-// Commercial use requires per-user licenses available from https://duplicacy.com
-
-package duplicacy
-
-import "os"
-
-func (entry *Entry) readAttributes(fi os.FileInfo, fullPath string, normalize bool) error {
-	return nil
-}
-
-func (entry *Entry) getFileFlags(fileInfo os.FileInfo) bool {
-	return true
-}
-
-func (entry *Entry) readFileFlags(fileInfo os.FileInfo, fullPath string) error {
-	return nil
-}
-
-func (entry *Entry) setAttributesToFile(fullPath string, normalize bool) error {
-	return nil
-}
-
-func (entry *Entry) restoreEarlyDirFlags(fullPath string, mask uint32) error {
-	return nil
-}
-
-func (entry *Entry) restoreEarlyFileFlags(f *os.File, mask uint32) error {
-	return nil
-}
-
-func (entry *Entry) restoreLateFileFlags(fullPath string, fileInfo os.FileInfo, mask uint32) error {
-	return nil
-}

src/duplicacy_xattr_xbsd.go

@@ -1,155 +0,0 @@
-// Copyright (c) Acrosync LLC. All rights reserved.
-// Free for personal use and commercial trial
-// Commercial use requires per-user licenses available from https://duplicacy.com
-
-//go:build freebsd || netbsd
-// +build freebsd netbsd
-
-package duplicacy
-
-import (
-	"bytes"
-	"encoding/binary"
-	"errors"
-	"math"
-	"os"
-	"syscall"
-	"unsafe"
-
-	"github.com/pkg/xattr"
-)
-
-const (
-	bsd_UF_NODUMP   = 0x1
-	bsd_SF_SETTABLE = 0xffff0000
-	bsd_UF_SETTABLE = 0x0000ffff
-
-	bsdFileFlagsKey = "\x00bf"
-)
-
-var bsdIsSuperUser bool
-
-func init() {
-	bsdIsSuperUser = syscall.Geteuid() == 0
-}
-
-func (entry *Entry) readAttributes(fi os.FileInfo, fullPath string, normalize bool) error {
-	if entry.IsSpecial() {
-		return nil
-	}
-
-	attributes, err := xattr.LList(fullPath)
-	if err != nil {
-		return err
-	}
-
-	if len(attributes) > 0 {
-		entry.Attributes = &map[string][]byte{}
-	}
-	var allErrors error
-	for _, name := range attributes {
-		value, err := xattr.LGet(fullPath, name)
-		if err != nil {
-			allErrors = errors.Join(allErrors, err)
-		} else {
-			(*entry.Attributes)[name] = value
-		}
-	}
-
-	return allErrors
-}
-
-func (entry *Entry) getFileFlags(fileInfo os.FileInfo) bool {
-	stat := fileInfo.Sys().(*syscall.Stat_t)
-	if stat.Flags != 0 {
-		if entry.Attributes == nil {
-			entry.Attributes = &map[string][]byte{}
-		}
-		v := make([]byte, 4)
-		binary.LittleEndian.PutUint32(v, stat.Flags)
-		(*entry.Attributes)[bsdFileFlagsKey] = v
-	}
-	return true
-}
-
-func (entry *Entry) readFileFlags(fileInfo os.FileInfo, fullPath string) error {
-	return nil
-}
-
-func (entry *Entry) setAttributesToFile(fullPath string, normalize bool) error {
-	if entry.Attributes == nil || len(*entry.Attributes) == 0 || entry.IsSpecial() {
-		return nil
-	}
-	attributes := *entry.Attributes
-
-	if _, haveFlags := attributes[bsdFileFlagsKey]; haveFlags && len(attributes) <= 1 {
-		return nil
-	}
-
-	names, err := xattr.LList(fullPath)
-	if err != nil {
-		return err
-	}
-	for _, name := range names {
-		newAttribute, found := attributes[name]
-		if found {
-			oldAttribute, _ := xattr.LGet(fullPath, name)
-			if !bytes.Equal(oldAttribute, newAttribute) {
-				err = errors.Join(err, xattr.LSet(fullPath, name, newAttribute))
-			}
-			delete(attributes, name)
-		} else {
-			err = errors.Join(err, xattr.LRemove(fullPath, name))
-		}
-	}
-
-	for name, attribute := range attributes {
-		if len(name) > 0 && name[0] == '\x00' {
-			continue
-		}
-		err = errors.Join(err, xattr.LSet(fullPath, name, attribute))
-	}
-	return err
-}
-
-func (entry *Entry) restoreEarlyDirFlags(fullPath string, mask uint32) error {
-	return nil
-}
-
-func (entry *Entry) restoreEarlyFileFlags(f *os.File, mask uint32) error {
-	return nil
-}
-
-func (entry *Entry) restoreLateFileFlags(fullPath string, fileInfo os.FileInfo, mask uint32) error {
-	if mask == math.MaxUint32 {
-		return nil
-	}
-
-	if bsdIsSuperUser {
-		mask |= ^uint32(bsd_UF_SETTABLE | bsd_SF_SETTABLE)
-	} else {
-		mask |= ^uint32(bsd_UF_SETTABLE)
-	}
-
-	var flags uint32
-
-	if entry.Attributes != nil {
-		if v, have := (*entry.Attributes)[bsdFileFlagsKey]; have {
-			flags = binary.LittleEndian.Uint32(v)
-		}
-	}
-
-	stat := fileInfo.Sys().(*syscall.Stat_t)
-
-	flags = (flags & ^mask) | (stat.Flags & mask)
-
-	if flags != stat.Flags {
-		pPath, _ := syscall.BytePtrFromString(fullPath)
-		if _, _, errno := syscall.Syscall(syscall.SYS_LCHFLAGS,
-			uintptr(unsafe.Pointer(pPath)),
-			uintptr(flags), 0); errno != 0 {
-			return os.NewSyscallError("lchflags", errno)
-		}
-	}
-	return nil
-}