Code Quality: Removed LiteDB (#15620)

Author: hishitetsu

src/Files.App/Files.App.csproj

@@ -69,7 +69,6 @@
         <PackageReference Include="FluentFTP" Version="43.0.1" />
         <PackageReference Include="ini-parser-netstandard" Version="2.5.2" />
         <PackageReference Include="LibGit2Sharp" Version="0.30.0" />
-        <PackageReference Include="LiteDB" Version="5.0.20" />
         <PackageReference Include="MessageFormat" Version="7.1.0" />
         <PackageReference Include="Microsoft.Data.Sqlite.Core" Version="8.0.6" />
         <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />

src/Files.App/Helpers/Layout/LayoutPreferencesDatabase.cs

@@ -1,12 +1,9 @@
 // Copyright (c) 2024 Files Community
 // Licensed under the MIT License. See the LICENSE.
 
-using LiteDB;
 using Microsoft.Win32;
-using System.IO;
 using System.Runtime.CompilerServices;
 using Windows.ApplicationModel;
-using Windows.Storage;
 using static Files.App.Helpers.LayoutPreferencesDatabaseItemRegistry;
 using static Files.App.Helpers.RegistryHelpers;
 using JsonSerializer = System.Text.Json.JsonSerializer;
@@ -17,26 +14,6 @@ public sealed class LayoutPreferencesDatabase
 	{
 		private readonly static string LayoutSettingsKey = @$"Software\Files Community\{Package.Current.Id.FullName}\v1\LayoutPreferences";
 
-		private readonly static string LayoutSettingsDbPath = Path.Combine(ApplicationData.Current.LocalFolder.Path, "user_settings.db");
-		private const string LayoutSettingsCollectionName = "layoutprefs";
-
-		static LayoutPreferencesDatabase()
-		{
-			if (File.Exists(LayoutSettingsDbPath))
-			{
-				using (var database = new LiteDatabase(new ConnectionString(LayoutSettingsDbPath)
-				{
-					Connection = ConnectionType.Direct,
-					Upgrade = true
-				}))
-				{
-					ImportCore(database.GetCollection<LayoutPreferencesDatabaseItem>(LayoutSettingsCollectionName).FindAll().ToArray());
-				}
-
-				File.Delete(LayoutSettingsDbPath);
-			}
-		}
-
 		public LayoutPreferencesItem? GetPreferences(string filePath, ulong? frn)
 		{
 			return FindPreferences(filePath, frn)?.LayoutPreferencesManager;

src/Files.App/Utils/FileTags/FileTagsDatabase.cs

@@ -1,13 +1,9 @@
 // Copyright (c) 2024 Files Community
 // Licensed under the MIT License. See the LICENSE.
 
-using LiteDB;
 using Microsoft.Win32;
-using System.IO;
 using System.Runtime.CompilerServices;
-using System.Text;
 using Windows.ApplicationModel;
-using Windows.Storage;
 using JsonSerializer = System.Text.Json.JsonSerializer;
 using static Files.App.Helpers.RegistryHelpers;
 using static Files.App.Utils.FileTags.TaggedFileRegistry;
@@ -18,63 +14,6 @@ public sealed class FileTagsDatabase
 	{
 		private readonly static string FileTagsKey = @$"Software\Files Community\{Package.Current.Id.FullName}\v1\FileTags";
 
-		private readonly static string FileTagsDbPath = Path.Combine(ApplicationData.Current.LocalFolder.Path, "filetags.db");
-		private const string FileTagsCollectionName = "taggedfiles";
-
-		static FileTagsDatabase()
-		{
-			if (File.Exists(FileTagsDbPath))
-			{
-				SafetyExtensions.IgnoreExceptions(() => CheckDbVersion(FileTagsDbPath));
-
-				using (var database = new LiteDatabase(new ConnectionString(FileTagsDbPath)
-				{
-					Connection = ConnectionType.Direct,
-					Upgrade = true
-				}))
-				{
-					UpdateDb(database);
-					ImportCore(database.GetCollection<TaggedFile>(FileTagsCollectionName).FindAll().ToArray());
-				}
-
-				File.Delete(FileTagsDbPath);
-			}
-		}
-
-		private static void UpdateDb(LiteDatabase database)
-		{
-			if (database.UserVersion == 0)
-			{
-				var col = database.GetCollection(FileTagsCollectionName);
-				foreach (var doc in col.FindAll())
-				{
-					doc["Tags"] = new BsonValue(new[] { doc["Tag"].AsString });
-					doc.Remove("Tags");
-					col.Update(doc);
-				}
-				database.UserVersion = 1;
-			}
-		}
-
-		// https://github.com/mbdavid/LiteDB/blob/master/LiteDB/Engine/Engine/Upgrade.cs
-		private static void CheckDbVersion(string filename)
-		{
-			var buffer = new byte[8192 * 2];
-			using (var stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
-			{
-				// read first 16k
-				stream.Read(buffer, 0, buffer.Length);
-
-				// checks if v7 (plain or encrypted)
-				if (Encoding.UTF8.GetString(buffer, 25, "** This is a LiteDB file **".Length) == "** This is a LiteDB file **" &&
-					buffer[52] == 7)
-				{
-					return; // version 4.1.4
-				}
-			}
-			File.Delete(filename); // recreate DB with correct version
-		}
-
 		public void SetTags(string filePath, ulong? frn, string[] tags)
 		{
 			using var filePathKey = Registry.CurrentUser.CreateSubKey(CombineKeys(FileTagsKey, filePath));

src/Files.App/ViewModels/Settings/AboutViewModel.cs

@@ -58,7 +58,6 @@ public AboutViewModel()
 				new ("https://github.com/robinrodricks/FluentFTP", "FluentFTP"),
 				new ("https://github.com/rickyah/ini-parser", "INI File Parser"),
 				new ("https://github.com/libgit2/libgit2sharp", "libgit2sharp"),
-				new ("https://github.com/mbdavid/LiteDB", "LiteDB"),
 				new ("https://github.com/beto-rodriguez/LiveCharts2", "LiveCharts2"),
 				new ("https://github.com/jeffijoe/messageformat.net", "MessageFormat"),
 				new ("https://github.com/dotnet/efcore", "EF Core for SQLite"),