From 8ab64071f006033c64e2f8acc3682230e915e2fe Mon Sep 17 00:00:00 2001
From: Kenneth Hsu <kennethhsu@gmail.com>
Date: Wed, 20 Nov 2019 20:14:15 -0800
Subject: [PATCH] Display correct backup type when using direct restore.

Previously, all filesets would be displayed as partial.  Now, we obtain
the partial/full type from the fileset file (not the fileset.json) file
in the dlist file.  If this file does not exist, the backup type
defaults fo full.

Note that this requires downloading and uncompressing the dlist file, so
performance of populating the restore list may be impacted
significantly.

This concerns issue #3982.
---
 .../Library/Main/Operation/ListFilesHandler.cs | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/Duplicati/Library/Main/Operation/ListFilesHandler.cs b/Duplicati/Library/Main/Operation/ListFilesHandler.cs
index dae2ab929..9aeada5ba 100644
--- a/Duplicati/Library/Main/Operation/ListFilesHandler.cs
+++ b/Duplicati/Library/Main/Operation/ListFilesHandler.cs
@@ -4,6 +4,7 @@ using System.Linq;
 using System.Text;
 using Duplicati.Library.Interface;
 using Duplicati.Library.Main.Database;
+using Duplicati.Library.Main.Volumes;
 using Duplicati.Library.Utility;
 
 namespace Duplicati.Library.Main.Operation
@@ -109,7 +110,7 @@ namespace Duplicati.Library.Main.Operation
                 if (filteredList.Count == 0)
                     throw new UserInformationException("No filesets found on remote target", "EmptyRemoteFolder");
 
-                var numberSeq = CreateResultSequence(filteredList);
+                var numberSeq = CreateResultSequence(filteredList, backend, m_options);
                 if (filter.Empty)
                 {
                     m_result.SetResult(numberSeq, null);
@@ -203,9 +204,20 @@ namespace Duplicati.Library.Main.Operation
             return filelistFilter(parsedlist).ToList();
         }
 
-        public static IEnumerable<Library.Interface.IListResultFileset> CreateResultSequence(IEnumerable<KeyValuePair<long, Volumes.IParsedVolume>> filteredList)
+        private static IEnumerable<IListResultFileset> CreateResultSequence(IEnumerable<KeyValuePair<long, IParsedVolume>> filteredList, BackendManager backendManager, Options options)
         {
-            return (from n in filteredList select (Library.Interface.IListResultFileset)(new ListResultFileset(n.Key, BackupType.PARTIAL_BACKUP, n.Value.Time.ToLocalTime(), -1, -1))).ToArray();
+            List<IListResultFileset> list = new List<IListResultFileset>();
+            foreach (KeyValuePair<long, IParsedVolume> entry in filteredList)
+            {
+                AsyncDownloader downloader = new AsyncDownloader(new IRemoteVolume[] {new RemoteVolume(entry.Value.File)}, backendManager);
+                foreach (IAsyncDownloadedFile file in downloader)
+                {
+                    VolumeBase.FilesetData filesetData = VolumeReaderBase.GetFilesetData(entry.Value.CompressionModule, file.TempFile, options);
+                    list.Add(new ListResultFileset(entry.Key, filesetData.IsFullBackup ? BackupType.FULL_BACKUP : BackupType.PARTIAL_BACKUP, entry.Value.Time.ToLocalTime(), -1, -1));
+                }
+            }
+
+            return list.ToArray();
         }
     }
 }