feat: Finish depot creation and transmission parts.

Flawless.Client/AppDefaultValues.cs

@@ -13,6 +13,8 @@ public static class AppDefaultValues
     
     public const string RepoLocalStorageDepotFolder = "depots";
     
+    public const string RepoLocalStorageTempFolder = "temp";
+    
     public static string ProgramDataDirectory { get; } =
         Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Ca2dWorks", "FlawlessClient");
     

Flawless.Client/Models/RepositoryLocalDatabaseModel.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Collections.ObjectModel;
-using System.Text.Json.Serialization;
 using Flawless.Client.Service;
+using Newtonsoft.Json;
 using ReactiveUI.SourceGenerators;
 
 namespace Flawless.Client.Models;
@@ -18,8 +18,13 @@ public partial class RepositoryLocalDatabaseModel : ReactiveModel
     [JsonIgnore]
     public RepositoryFileTreeAccessor? RepoAccessor { get; set; }
     
+    [JsonProperty("currentCommit")]
     [Reactive] private Guid? _currentCommit;
     
+    [JsonProperty("commitMessage")]
     [Reactive] private string? _commitMessage;
 
+    [JsonProperty("lastOperationTime")]
+    [Reactive] private DateTime _lastOprationTime;
+
 }

Flawless.Client/Service/LocalFileTreeAccessor.cs

@@ -44,20 +44,25 @@ public class LocalFileTreeAccessor
 
     private IReadOnlyDictionary<string, WorkspaceFile> _baseline;
 
-    private Dictionary<string, ChangeRecord> _difference;
+    private Dictionary<string, ChangeRecord> _changes = new();
+
+    private Dictionary<string, WorkspaceFile> _currentFiles = new();
     
     private object _optLock = new();
 
+    public DateTime LastScanTimeUtc { get; private set; }
+    
     public string WorkingDirectory => _rootDirectory;
     
     public IReadOnlyDictionary<string, WorkspaceFile> BaselineFiles => _baseline;
     
-    public IReadOnlyDictionary<string, ChangeRecord> Changes => _difference;
+    public IReadOnlyDictionary<string, ChangeRecord> Changes => _changes;
+
+    public IReadOnlyDictionary<string, WorkspaceFile> CurrentFiles => _currentFiles;
     
     public LocalFileTreeAccessor(RepositoryModel repo, IEnumerable<WorkspaceFile> baselines)
     {
         _repo = repo;
-        _difference = new Dictionary<string, ChangeRecord>();
         _baseline = baselines.ToImmutableDictionary(b => b.WorkPath);
         _rootDirectory = PathUtility.GetWorkspacePath(repo.OwnerName, repo.Name);
     }
@@ -67,7 +72,7 @@ public class LocalFileTreeAccessor
         lock (_optLock)
         {
             _baseline = baselines.ToImmutableDictionary(b => b.WorkPath);
-            _difference.Clear();
+            _changes.Clear();
             
             RefreshInternal();
         }
@@ -77,7 +82,7 @@ public class LocalFileTreeAccessor
     {
         lock (_optLock)
         {
-            _difference.Clear();
+            _changes.Clear();
             
             RefreshInternal();
         }
@@ -85,7 +90,7 @@ public class LocalFileTreeAccessor
 
     private void RefreshInternal()
     {
-        Dictionary<string, WorkspaceFile> currentFiles = new();
+        _currentFiles.Clear();
         foreach (var f in Directory.GetFiles(_rootDirectory, "*", SearchOption.AllDirectories))
         {
             var workPath = WorkPath.FromPlatformPath(f, _rootDirectory);
@@ -93,16 +98,18 @@ public class LocalFileTreeAccessor
                 continue;
             
             var modifyTime = File.GetLastWriteTimeUtc(f);
-            currentFiles.Add(workPath, new WorkspaceFile { WorkPath = workPath, ModifyTime = modifyTime });
+            _currentFiles.Add(workPath, new WorkspaceFile { WorkPath = workPath, ModifyTime = modifyTime });
         }
         
+        LastScanTimeUtc = DateTime.UtcNow;
+        
         // Find those are changed
-        var changes = currentFiles.Values.Where(v => _baseline.TryGetValue(v.WorkPath, out var fi) && fi.ModifyTime != v.ModifyTime);
+        var changes = _currentFiles.Values.Where(v => _baseline.TryGetValue(v.WorkPath, out var fi) && fi.ModifyTime != v.ModifyTime);
-        var news = currentFiles.Values.Where(v => !_baseline.ContainsKey(v.WorkPath));
+        var news = _currentFiles.Values.Where(v => !_baseline.ContainsKey(v.WorkPath));
-        var removed = _baseline.Values.Where(v => !currentFiles.ContainsKey(v.WorkPath));
+        var removed = _baseline.Values.Where(v => !_currentFiles.ContainsKey(v.WorkPath));
         
-        foreach (var f in changes) _difference.Add(f.WorkPath, new ChangeRecord(ChangeType.Modify, f));
+        foreach (var f in changes) _changes.Add(f.WorkPath, new ChangeRecord(ChangeType.Modify, f));
-        foreach (var f in news) _difference.Add(f.WorkPath, new ChangeRecord(ChangeType.Add, f));
+        foreach (var f in news) _changes.Add(f.WorkPath, new ChangeRecord(ChangeType.Add, f));
-        foreach (var f in removed) _difference.Add(f.WorkPath, new ChangeRecord(ChangeType.Remove, f));
+        foreach (var f in removed) _changes.Add(f.WorkPath, new ChangeRecord(ChangeType.Remove, f));
     }
 }

Flawless.Client/Service/Remote_Generated.cs

@@ -5,6 +5,7 @@
 
 using Refit;
 using System.Collections.Generic;
+using System.IO;
 using System.Text.Json.Serialization;
 using System.Threading.Tasks;
 
@@ -113,25 +114,25 @@ namespace Flawless.Client.Remote
         /// <returns>OK</returns>
         /// <exception cref="ApiException">Thrown when the request returns a non-success status code.</exception>
         [Headers("Accept: text/plain, application/json, text/json")]
-        [Get("/api/repo/{userName}/{repositoryName}/fetch_manifest")]
+        [Post("/api/repo/{userName}/{repositoryName}/fetch_manifest")]
-        Task<FileResponse> FetchManifest(string userName, string repositoryName, [Query] string commitId);
+        Task<CommitManifest> FetchManifest(string userName, string repositoryName, [Query] string commitId);
 
         /// <returns>OK</returns>
         /// <exception cref="ApiException">Thrown when the request returns a non-success status code.</exception>
         [Headers("Accept: text/plain, application/json, text/json")]
-        [Get("/api/repo/{userName}/{repositoryName}/fetch_depot")]
+        [Post("/api/repo/{userName}/{repositoryName}/fetch_depot")]
-        Task<FileResponse> FetchDepot(string userName, string repositoryName, [Query] string depotId);
+        Task<ApiResponse<Stream>> FetchDepot(string userName, string repositoryName, [Query] string depotId);
 
         /// <returns>OK</returns>
         /// <exception cref="ApiException">Thrown when the request returns a non-success status code.</exception>
         [Headers("Accept: text/plain, application/json, text/json")]
-        [Get("/api/repo/{userName}/{repositoryName}/list_commit")]
+        [Post("/api/repo/{userName}/{repositoryName}/list_commit")]
         Task<RepositoryCommitResponseListingResponse> ListCommit(string userName, string repositoryName);
 
         /// <returns>OK</returns>
         /// <exception cref="ApiException">Thrown when the request returns a non-success status code.</exception>
         [Headers("Accept: text/plain, application/json, text/json")]
-        [Get("/api/repo/{userName}/{repositoryName}/list_locked_files")]
+        [Post("/api/repo/{userName}/{repositoryName}/list_locked_files")]
         Task<LockFileInfoListingResponse> ListLockedFiles(string userName, string repositoryName);
 
         /// <returns>OK</returns>
@@ -155,7 +156,7 @@ namespace Flawless.Client.Remote
         [Multipart]
         [Headers("Accept: text/plain, application/json, text/json")]
         [Post("/api/repo/{userName}/{repositoryName}/create_commit")]
-        Task<CommitSuccessResponse> CreateCommit(string userName, string repositoryName, StreamPart depot, string message, IEnumerable<WorkspaceFile> workspaceSnapshot, IEnumerable<string> requiredDepots, string mainDepotId);
+        Task<CommitSuccessResponse> CreateCommit(string userName, string repositoryName, StreamPart depot, string message, IEnumerable<string> workspaceSnapshot, IEnumerable<string> requiredDepots, string mainDepotId);
 
         /// <returns>OK</returns>
         /// <exception cref="ApiException">Thrown when the request returns a non-success status code.</exception>
@@ -232,6 +233,21 @@ namespace Flawless.Client.Remote
 
     
 
+    [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "14.2.0.0 (NJsonSchema v11.1.0.0 (Newtonsoft.Json v13.0.0.0))")]
+    public partial class CommitManifest
+    {
+
+        [JsonPropertyName("manifestId")]
+        public System.Guid ManifestId { get; set; }
+
+        [JsonPropertyName("depot")]
+        public ICollection<DepotLabel> Depot { get; set; }
+
+        [JsonPropertyName("filePaths")]
+        public ICollection<WorkspaceFile> FilePaths { get; set; }
+
+    }
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "14.2.0.0 (NJsonSchema v11.1.0.0 (Newtonsoft.Json v13.0.0.0))")]
     public partial class CommitSuccessResponse
     {
@@ -242,6 +258,21 @@ namespace Flawless.Client.Remote
         [JsonPropertyName("commitId")]
         public System.Guid CommitId { get; set; }
 
+        [JsonPropertyName("mainDepotId")]
+        public System.Guid MainDepotId { get; set; }
+
+    }
+
+    [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "14.2.0.0 (NJsonSchema v11.1.0.0 (Newtonsoft.Json v13.0.0.0))")]
+    public partial class DepotLabel
+    {
+
+        [JsonPropertyName("id")]
+        public System.Guid Id { get; set; }
+
+        [JsonPropertyName("length")]
+        public long Length { get; set; }
+
     }
 
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "14.2.0.0 (NJsonSchema v11.1.0.0 (Newtonsoft.Json v13.0.0.0))")]
@@ -535,6 +566,12 @@ namespace Flawless.Client.Remote
     public partial class WorkspaceFile
     {
 
+        [JsonPropertyName("modifyTime")]
+        public System.DateTimeOffset ModifyTime { get; set; }
+
+        [JsonPropertyName("workPath")]
+        public string WorkPath { get; set; }
+
     }
 
     [System.CodeDom.Compiler.GeneratedCode("NSwag", "14.2.0.0 (NJsonSchema v11.1.0.0 (Newtonsoft.Json v13.0.0.0))")]

Flawless.Client/Service/RepositoryFileTreeAccessor.cs

@@ -1,14 +1,16 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.IO;
+using System.Linq;
 using System.Threading.Tasks;
 using Flawless.Core.BinaryDataFormat;
 using Flawless.Core.Modal;
 
 namespace Flawless.Client.Service;
 
-public class RepositoryFileTreeAccessor : IDisposable, IAsyncDisposable
+public class RepositoryFileTreeAccessor : IDisposable, IAsyncDisposable, IEnumerable<WorkspaceFile>
 {
     
     private struct FileReadInfoCache
@@ -77,6 +79,7 @@ public class RepositoryFileTreeAccessor : IDisposable, IAsyncDisposable
         
         foreach (var (id, stream) in _mappings)
         {
+            stream.Seek(0, SeekOrigin.Begin);
             var header = DataTransformer.ExtractStandardDepotHeaderV1(stream);
             _headers.Add(id, header);
             await foreach (var inf in DataTransformer.ExtractDepotFileInfoMapAsync(stream, header.FileMapSize))
@@ -109,7 +112,7 @@ public class RepositoryFileTreeAccessor : IDisposable, IAsyncDisposable
         return false;
     }
 
-    public bool TryWriteDataIntoStream(string workPath, Stream stream)
+    public bool TryWriteDataIntoStream(string workPath, Stream stream, out DateTime modifyTime)
     {
         DisposeCheck();
         if (stream == null || !stream.CanWrite) throw new ArgumentException("Stream is not writable!");
@@ -118,6 +121,24 @@ public class RepositoryFileTreeAccessor : IDisposable, IAsyncDisposable
         {
             var baseStream = DataTransformer.ExtractStandardDepotFile(_mappings[r.DepotId], r.FileInfo);
             baseStream.CopyTo(stream);
+            modifyTime = r.FileInfo.ModifyTime;
+            return true;
+        }
+
+        modifyTime = DateTime.MinValue;
+        return false;
+    }
+    
+    public bool TryWriteDataIntoStream(string workPath, string destinationPath)
+    {
+        DisposeCheck();
+        
+        if (_cached.TryGetValue(workPath, out var r))
+        {
+            using var ws = new FileStream(destinationPath, FileMode.OpenOrCreate, FileAccess.Write);
+            var baseStream = DataTransformer.ExtractStandardDepotFile(_mappings[r.DepotId], r.FileInfo);
+            baseStream.CopyTo(ws);
+            File.SetLastWriteTimeUtc(destinationPath, r.FileInfo.ModifyTime);
             return true;
         }
 
@@ -129,4 +150,14 @@ public class RepositoryFileTreeAccessor : IDisposable, IAsyncDisposable
         if (_disposed) throw new ObjectDisposedException("Accessor has already been disposed");
     }
 
+    public IEnumerator<WorkspaceFile> GetEnumerator()
+    {
+        return _cached.Values
+            .Select(cv => new WorkspaceFile(cv.FileInfo.ModifyTime, cv.FileInfo.Path)).GetEnumerator();
+    }
+
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        return GetEnumerator();
+    }
 }

Flawless.Client/Service/RepositoryService.cs

@@ -3,12 +3,14 @@ using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.IO;
 using System.Linq;
+using System.Net;
 using System.Threading.Tasks;
 using Flawless.Abstraction;
 using Flawless.Client.Models;
+using Flawless.Core.BinaryDataFormat;
 using Flawless.Core.Modal;
 using Newtonsoft.Json;
-using ValueTaskSupplement;
+using Refit;
 
 namespace Flawless.Client.Service;
 
@@ -42,20 +44,18 @@ public class RepositoryService : BaseService<RepositoryService>
 
     public bool SaveRepositoryLocalDatabaseChanges(RepositoryModel repo)
     {
-        var dbPath = PathUtility.GetWorkspaceDbPath(repo.OwnerName, repo.Name);
+        var localRepo = GetRepositoryLocalDatabase(repo);
-        if (File.Exists(dbPath)) return false;
+        localRepo.LastOprationTime = DateTime.Now;
 
-        if (!_localRepoDbModel.TryGetValue(repo, out var localRepo))
+        var dbPath = PathUtility.GetWorkspaceDbPath(repo.OwnerName, repo.Name);
-        {
+        Directory.CreateDirectory(Path.GetDirectoryName(dbPath)!);
-            using var writeFs = new StreamWriter(new FileStream(dbPath, FileMode.Truncate));
+        
+        using var writeFs = new StreamWriter(new FileStream(dbPath, FileMode.OpenOrCreate));
         JsonSerializer.CreateDefault().Serialize(writeFs, localRepo);
         
         return true;
     }
     
-        return false;
-    }
-    
     public RepositoryLocalDatabaseModel GetRepositoryLocalDatabase(RepositoryModel repo)
     {
         if (!_localRepoDbModel.TryGetValue(repo, out var localRepo))
@@ -183,16 +183,6 @@ public class RepositoryService : BaseService<RepositoryService>
         return true;
     }
     
-    public async ValueTask<bool> UpdateDownloadedStatusFromDiskAsync(RepositoryModel repo)
-    {
-        var isFolderExists = Directory.Exists(PathUtility.GetWorkspacePath(repo.OwnerName, repo.Name));
-        var isDbFileExists = File.Exists(PathUtility.GetWorkspaceDbPath(repo.OwnerName, repo.Name));
-
-        repo.IsDownloaded = isFolderExists && isDbFileExists;
-        
-        return true;
-    }
-
     public async ValueTask<bool> UpdateMembersFromServerAsync(RepositoryModel repo)
     {
         var api = Api.C;
@@ -267,17 +257,22 @@ public class RepositoryService : BaseService<RepositoryService>
 
     public async ValueTask<bool> OpenRepositoryOnStorageAsync(RepositoryModel repo)
     {
-        if (!await UpdateDownloadedStatusFromDiskAsync(repo) || repo.IsDownloaded == false) return false;
+        if (!await UpdateRepositoriesDownloadedStatusFromDiskAsync() || repo.IsDownloaded == false) return false;
         if (!await UpdateCommitsFromServerAsync(repo)) return false;
         var ls = GetRepositoryLocalDatabase(repo);
         
         if (ls.CurrentCommit != null)
         {
-            var accessor = await DownloadDepotsToGetCommitFileTreeFromServerAsync(repo, ls.CurrentCommit.Value);
+            var accessor = await DownloadDepotsAndUseLocalCachesToGenerateRepositoryFileTreeAccessorFromServerAsync(repo, ls.CurrentCommit.Value);
             if (accessor == null) return false;
             ls.RepoAccessor = accessor;
+            
+            // Remember to cache accessor everytime it will being used.
+            await accessor.CreateCacheAsync();
+            ls.LocalAccessor.SetBaseline(accessor);
         }
         
+        SaveRepositoryLocalDatabaseChanges(repo);
         _openedRepos.Add(repo);
         return true;
     }
@@ -287,6 +282,7 @@ public class RepositoryService : BaseService<RepositoryService>
         // Create basic structures.
         if (!TryCreateRepositoryBaseStorageStructure(repo)) return false;
         
+        SaveRepositoryLocalDatabaseChanges(repo);
         repo.IsDownloaded = true;
         _openedRepos.Add(repo);
         return true;
@@ -301,20 +297,21 @@ public class RepositoryService : BaseService<RepositoryService>
         var peekCommit = repo.Commits.MaxBy(sl => sl.CommittedOn);
         if (peekCommit == null) return false; // Should not use this function!
         
-        // Create basic structures.
-        if (!TryCreateRepositoryBaseStorageStructure(repo)) return false;
-        
         // Download base repo info
-        var accessor = await DownloadDepotsToGetCommitFileTreeFromServerAsync(repo, peekCommit.CommitId);
+        var accessor = await DownloadDepotsAndUseLocalCachesToGenerateRepositoryFileTreeAccessorFromServerAsync(repo, peekCommit.CommitId);
         if (accessor == null)
         {
             await DeleteFromDiskAsync(repo);
             return false;
         };
         
+        // Remember to cache accessor everytime it will being used.
+        await accessor.CreateCacheAsync();
+        
         var ls = GetRepositoryLocalDatabase(repo);
         ls.CurrentCommit = peekCommit.CommitId;
         ls.RepoAccessor = accessor;
+        ls.LocalAccessor.SetBaseline(accessor);
         
         try
         {
@@ -325,8 +322,8 @@ public class RepositoryService : BaseService<RepositoryService>
 
                 // Write into fs
                 if (directory != null) Directory.CreateDirectory(directory);
-                await using var write = File.Create(pfs);
+                if (!accessor.TryWriteDataIntoStream(f.WorkPath, pfs))
-                accessor.TryWriteDataIntoStream(f.WorkPath, write);
+                    throw new InvalidDataException($"Can not write {f.WorkPath} into repository.");
             }
         }
         catch (Exception e)
@@ -336,6 +333,7 @@ public class RepositoryService : BaseService<RepositoryService>
             return false;
         }
 
+        SaveRepositoryLocalDatabaseChanges(repo);
         repo.IsDownloaded = true;
         _openedRepos.Add(repo);
         return true;
@@ -426,7 +424,8 @@ public class RepositoryService : BaseService<RepositoryService>
         return true;
     }
 
-    public async ValueTask<RepositoryFileTreeAccessor?> DownloadDepotsToGetCommitFileTreeFromServerAsync
+    public async ValueTask<RepositoryFileTreeAccessor?>
+        DownloadDepotsAndUseLocalCachesToGenerateRepositoryFileTreeAccessorFromServerAsync
         (RepositoryModel repo, Guid commit, bool storeDownloadedDepots = true)
     {
         if (commit == Guid.Empty) return null;
@@ -438,7 +437,7 @@ public class RepositoryService : BaseService<RepositoryService>
         // Prepare folders
         var path = PathUtility.GetWorkspacePath(repo.OwnerName, repo.Name);
         var depotsRoot = PathUtility.GetWorkspaceDepotCachePath(repo.OwnerName, repo.Name);
-        Directory.CreateDirectory(path);
+        Directory.CreateDirectory(depotsRoot);
         
         // Generate download depots list
         var mainDepotLabel = manifest.Value.Depot;
@@ -452,12 +451,10 @@ public class RepositoryService : BaseService<RepositoryService>
 
         // Download them
         var downloadedDepots = await DownloadDepotsAndCopyNetworkStreamIntoNewMemoryStreamFromServerAsync(repo, willDownload);
+        if (downloadedDepots == null) return null;
         
         try
         {
-            // Check if anyone download failed
-            if (downloadedDepots == null || downloadedDepots.Any(dl => dl.Item2 == null)) 
-                throw new Exception("Some depots are not able to be downloaded.");
 
             if (storeDownloadedDepots)
             {
@@ -494,21 +491,22 @@ public class RepositoryService : BaseService<RepositoryService>
     }
 
     public async ValueTask WriteDownloadedDepotsFromServerToStorageAsync
-        (RepositoryModel repo, IEnumerable<(Guid, Stream)> depots)
+        (RepositoryModel repo, IEnumerable<(Guid id, Stream stream)> depots)
     {
         var depotsRoot = PathUtility.GetWorkspaceDepotCachePath(repo.OwnerName, repo.Name);
-        var tasks = depots.Select(async d =>
+        foreach (var d in depots)
         {
-            var dst = Path.Combine(depotsRoot, d.Item1.ToString());
+            var dst = Path.Combine(depotsRoot, d.id.ToString());
             await using var ws = new FileStream(dst, FileMode.Create);
-            await d.Item2.CopyToAsync(ws);
-            d.Item2.Seek(0, SeekOrigin.Begin);
-        });
             
-        await Task.WhenAll(tasks);
+            // Make sure always to be at begin.
+            d.stream.Seek(0, SeekOrigin.Begin);
+            await d.stream.CopyToAsync(ws);
+            d.stream.Seek(0, SeekOrigin.Begin);
+        }
     }
 
-    public async ValueTask<(Guid, Stream?)[]?> DownloadDepotsAndCopyNetworkStreamIntoNewMemoryStreamFromServerAsync
+    public async ValueTask<(Guid, Stream)[]?> DownloadDepotsAndCopyNetworkStreamIntoNewMemoryStreamFromServerAsync
         (RepositoryModel repo, IEnumerable<DepotLabel> depotsId)
     {
         try
@@ -520,24 +518,28 @@ public class RepositoryService : BaseService<RepositoryService>
                 return null;
             }
 
-            return await ValueTaskEx.WhenAll(depotsId.Select(p => DownloadDepotInternalAsync(p.Id, p.Length)));
+            var result = new List<(Guid, Stream)>();
+            foreach (var dl in depotsId)
+            {
+                using var rsp = await Api.C.Gateway.FetchDepot(repo.OwnerName, repo.Name, dl.Id.ToString());
+                if (rsp.StatusCode != HttpStatusCode.OK)
+                {
+                    Console.WriteLine($"Failed to fetch depot {dl.Id}");
+                    return null;
+                }
+            
+                var memoryStream = new MemoryStream(new byte[dl.Length]);
+                await rsp.Content!.CopyToAsync(memoryStream);
+                result.Add((dl.Id, memoryStream));
+            }
+            
+            return result.ToArray();
         }
         catch (Exception e)
         {
             Console.WriteLine(e);
             return null;
         }
-
-        async ValueTask<(Guid, Stream?)> DownloadDepotInternalAsync(Guid depotId, long length)
-        {
-            using var rsp = await Api.C.Gateway.FetchDepot(repo.OwnerName, repo.Name, depotId.ToString());
-            if (rsp.StatusCode != 200) return (depotId, null);
-            if (rsp.Stream.Length != length) return (depotId, null);
-            
-            var memoryStream = new MemoryStream(new byte[rsp.Stream.Length]);
-            await rsp.Stream.CopyToAsync(memoryStream);
-            return (depotId, memoryStream);
-        }
     }
 
     public async ValueTask<CommitManifest?> DownloadManifestFromServerAsync(RepositoryModel repo, Guid manifestId)
@@ -551,10 +553,11 @@ public class RepositoryService : BaseService<RepositoryService>
                 return null;
             }
             
-            using var manifestResponse = await api.Gateway.FetchManifest(repo.OwnerName, repo.Name, manifestId.ToString());
+            var rsp = await api.Gateway.FetchManifest(repo.OwnerName, repo.Name, manifestId.ToString());
-            if (manifestResponse.StatusCode != 200) return null;
+            return new(
-
+                rsp.ManifestId,
-            return await System.Text.Json.JsonSerializer.DeserializeAsync<CommitManifest>(manifestResponse.Stream);
+                rsp.Depot.Select(x => new DepotLabel(x.Id, x.Length)).ToArray(),
+                rsp.FilePaths.Select(x => new WorkspaceFile(x.ModifyTime.UtcDateTime, x.WorkPath)).ToArray());
         }
         catch (Exception e)
         {
@@ -579,4 +582,164 @@ public class RepositoryService : BaseService<RepositoryService>
         repo.IsDownloaded = false;
         return true;
     }
+
+    public async ValueTask<CommitManifest?> CommitWorkspaceAsBaselineAsync
+        (RepositoryModel repo, IEnumerable<LocalFileTreeAccessor.ChangeRecord> changes, string message)
+    {
+        var localDb = GetRepositoryLocalDatabase(repo);
+        var manifestList = CreateCommitManifestByCurrentBaselineAndChanges(localDb.LocalAccessor, changes);
+        var api = Api.C;
+        
+        try
+        {
+            
+            // Renew for once.
+            if (api.RequireRefreshToken() && !(await api.TryRefreshTokenAsync()))
+            {
+                api.ClearGateway();
+                return null;
+            }
+            
+            // Generate depot
+            var tempDepotPath = await CreateDepotIntoTempFileAsync(repo, manifestList);
+            if (tempDepotPath == null) return null;
+            
+            // Upload and create commit
+            await using var str = File.OpenRead(tempDepotPath);
+            var snapshot = manifestList.Select(l => $"{l.ModifyTime.ToBinary()}${l.WorkPath}");
+            if (api.RequireRefreshToken() && !(await api.TryRefreshTokenAsync()))
+            {
+                api.ClearGateway();
+                return null;
+            }
+            
+            var rsp = await api.Gateway.CreateCommit(repo.OwnerName, repo.Name,
+                new StreamPart(str, Path.GetFileName(tempDepotPath)), message, snapshot, null!, null!);
+            
+            // Move depot file to destination
+            var depotsPath = PathUtility.GetWorkspaceDepotCachePath(repo.OwnerName, repo.Name);
+            var finalPath = Path.Combine(depotsPath, rsp.MainDepotId.ToString());
+            Directory.CreateDirectory(depotsPath);
+            File.Move(tempDepotPath, finalPath, true);
+            
+            // Fetch mapped manifest
+            var manifest = await DownloadManifestFromServerAsync(repo, rsp.CommitId);
+            if (manifest == null) return null;
+            
+            var accessor = await DownloadDepotsAndUseLocalCachesToGenerateRepositoryFileTreeAccessorFromServerAsync(repo, rsp.CommitId);
+            if (accessor == null) return null; //todo this is a really fatal issue...
+            if (localDb.RepoAccessor != null)
+            {
+                try { await localDb.RepoAccessor.DisposeAsync(); }
+                catch (Exception e) { Console.WriteLine(e); }
+            }
+            
+            // Point to newest state.
+            localDb.RepoAccessor = accessor;
+            localDb.CurrentCommit = rsp.CommitId;
+            localDb.LocalAccessor.SetBaseline(accessor);
+            SaveRepositoryLocalDatabaseChanges(repo);
+
+            return manifest;
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            return null;
+        }
+    }
+
+    public List<WorkspaceFile> CreateCommitManifestByCurrentBaselineAndChanges
+        (LocalFileTreeAccessor accessor, IEnumerable<LocalFileTreeAccessor.ChangeRecord> changes, bool hard = false)
+    {
+        // Create a new depot file manifest.
+        var files = accessor.BaselineFiles.Values.ToList();
+        foreach (var c in changes)
+        {
+            switch (c.Type)
+            {
+                case LocalFileTreeAccessor.ChangeType.Folder:
+                {
+                    if (hard) throw new InvalidProgramException(
+                        $"Can not commit folder into version control: {c.File.WorkPath}");
+                    
+                    Console.WriteLine($"Can not commit folder into version control...Ignored: {c.File.WorkPath}");
+                    continue;
+                }
+                case LocalFileTreeAccessor.ChangeType.Add:
+                {
+                    if (files.Any(f => f.WorkPath == c.File.WorkPath))
+                    {
+                        if (hard) throw new InvalidProgramException(
+                            $"Can not create an existed record into version control: {c.File.WorkPath}");
+                        
+                        Console.WriteLine($"Can not create an existed record into version control...Ignored: {c.File.WorkPath}");
+                        continue;
+                    }
+                    
+                    files.Add(c.File);
+                    break;
+                }
+                case LocalFileTreeAccessor.ChangeType.Remove:
+                {
+                    var idx = files.FindIndex(f => f.WorkPath == c.File.WorkPath);
+                    if (idx < 0)
+                    {
+                        if (hard) throw new InvalidProgramException(
+                            $"Can not delete a missed record into version control: {c.File.WorkPath}");
+                        
+                        Console.WriteLine($"Can not delete a missed record into version control...Ignored: {c.File.WorkPath}");
+                        continue;
+                    }
+                    
+                    files.RemoveAt(idx);
+                    break;
+                }
+                case LocalFileTreeAccessor.ChangeType.Modify:
+                {
+                    var idx = files.FindIndex(f => f.WorkPath == c.File.WorkPath);
+                    if (idx < 0)
+                    {
+                        if (hard) throw new InvalidProgramException(
+                            $"Can not modify a missed record into version control: {c.File.WorkPath}");
+                        
+                        Console.WriteLine($"Can not modify a missed record into version control...Ignored: {c.File.WorkPath}");
+                        continue;
+                    }
+                    
+                    files[idx] = c.File;
+                    break;
+                }
+            }
+        }
+
+        return files;
+    }
+    
+    public async ValueTask<string?> CreateDepotIntoTempFileAsync(RepositoryModel repo, IEnumerable<WorkspaceFile> depotFiles)
+    {
+        var repoWs = PathUtility.GetWorkspacePath(repo.OwnerName, repo.Name);
+        var commitTempFolder = Directory.CreateTempSubdirectory("FlawlessDepot_");
+        var depotFile = Path.Combine(commitTempFolder.FullName, "depot.bin");
+
+        try
+        {
+            // No UI thread blocked
+            await Task.Run(async () =>
+            {
+                await using var fs = new FileStream(depotFile, FileMode.Create);
+                DataTransformer.CreateAndInsertStandardDepotFile(fs, depotFiles,
+                    wf => File.OpenRead(WorkPath.ToPlatformPath(wf.WorkPath, repoWs)));
+                
+            });
+        }
+        catch (Exception e)
+        {
+            Directory.Delete(repoWs, true);
+            Console.WriteLine(e);
+            return null;
+        }
+
+        return depotFile;
+    }
 }

Flawless.Client/ViewModels/HomeViewModel.cs

@@ -109,7 +109,7 @@ public partial class HomeViewModel : ViewModelBase, IRoutableViewModel
         if (mr == DialogResult.Yes)
         {
             if (await RepositoryService.C.DeleteFromDiskAsync(_selectedRepository))
-                await RepositoryService.C.UpdateDownloadedStatusFromDiskAsync(_selectedRepository);
+                await RepositoryService.C.UpdateRepositoriesDownloadedStatusFromDiskAsync();
         }
     }
 

Flawless.Client/ViewModels/RepositoryViewModel.cs

@@ -4,6 +4,7 @@ using System.Collections.ObjectModel;
 using System.IO;
 using System.Linq;
 using System.Reactive.Linq;
+using System.Reactive.Threading.Tasks;
 using System.Threading.Tasks;
 using Avalonia.Controls;
 using Avalonia.Controls.Models.TreeDataGrid;
@@ -11,6 +12,7 @@ using DynamicData;
 using DynamicData.Binding;
 using Flawless.Client.Models;
 using Flawless.Client.Service;
+using Flawless.Core.Modal;
 using ReactiveUI;
 using ReactiveUI.SourceGenerators;
 using ChangeType = Flawless.Client.Service.LocalFileTreeAccessor.ChangeType;
@@ -64,6 +66,38 @@ public class LocalChangesNode
     }
 }
 
+public class CommitTransitNode
+{
+    public required string Guid { get; set; }
+
+    public required string Author { get; set; }
+
+    public required string Message { get; set; }
+    
+    public required DateTime? CommitAt { get; set; }
+    
+    public static CommitTransitNode FromCommit(RepositoryModel.Commit cm)
+    {
+        string msg;
+        if (cm.Message.Length > 28)
+        {
+            msg = cm.Message.Substring(0, 28) + "...";
+        }
+        else
+        {
+            msg = cm.Message;
+        }
+
+        return new CommitTransitNode
+        {
+            Guid = cm.CommitId.ToString(),
+            Author = cm.Author,
+            CommitAt = cm.CommittedOn.ToLocalTime(),
+            Message = msg,
+        };
+    }
+}
+
 public partial class RepositoryViewModel : RoutableViewModelBase
 {
     public RepositoryModel Repository { get; }
@@ -72,6 +106,11 @@ public partial class RepositoryViewModel : RoutableViewModelBase
     
     public HierarchicalTreeDataGridSource<LocalChangesNode> LocalChange { get; }
     
+    
+    public HierarchicalTreeDataGridSource<LocalChangesNode> FileTree { get; }
+    
+    public FlatTreeDataGridSource<CommitTransitNode> Commits { get; }
+    
     public ObservableCollection<LocalChangesNode> LocalChangeSetRaw { get; } = new();
     
     public UserModel User { get; }
@@ -91,12 +130,6 @@ public partial class RepositoryViewModel : RoutableViewModelBase
         Repository.Members.ObserveCollectionChanges().Subscribe(_ => RefreshRepositoryRoleInfo());
         
         // Setup local change set
-        LocalChangeSetRaw.Add(new LocalChangesNode
-        {
-            Type = "Add",
-            FullPath = "test.md",
-            ModifiedTime = DateTime.Now,
-        });
         LocalChange = new HierarchicalTreeDataGridSource<LocalChangesNode>(LocalChangeSetRaw)
         {
             Columns =
@@ -104,16 +137,16 @@ public partial class RepositoryViewModel : RoutableViewModelBase
                 new CheckBoxColumn<LocalChangesNode>(
                 string.Empty, n => n.Included, (n, v) => n.Included = v),
                 
-                new TextColumn<LocalChangesNode, string>(
-                    "Change",
-                    n => n.Contents != null  ? String.Empty : n.Type),
-                
                 new HierarchicalExpanderColumn<LocalChangesNode>(
                     new TextColumn<LocalChangesNode, string>(
                         "Name",
                         n => Path.GetFileName(n.FullPath)), 
                     n => n.Contents),
                 
+                new TextColumn<LocalChangesNode, string>(
+                    "Change",
+                    n => n.Contents != null ? String.Empty : n.Type.ToString()),
+
                 new TextColumn<LocalChangesNode, string>(
                     "File Type",
                     n => n.Contents != null ? "Folder" : Path.GetExtension(n.FullPath)),
@@ -127,8 +160,62 @@ public partial class RepositoryViewModel : RoutableViewModelBase
             }
         };
 
-        // Do refresh when entered
+        Commits = new FlatTreeDataGridSource<CommitTransitNode>(Repository.Commits.Select(CommitTransitNode.FromCommit))
-        // DetectLocalChangesAsyncCommand.Execute();
+        {
+            Columns =
+            {
+                new TextColumn<CommitTransitNode, string>(
+                    string.Empty, n => n.Guid == LocalDatabase.CurrentCommit.ToString() ? "*" : String.Empty),
+                
+                new TextColumn<CommitTransitNode, string>(
+                    "Message", x => x.Message),
+
+                new TextColumn<CommitTransitNode, string>(
+                    "Author", x => x.Author),
+
+                new TextColumn<CommitTransitNode, DateTime>(
+                    "Time", x => x.CommitAt!.Value),
+
+                new TextColumn<CommitTransitNode, string>(
+                    "Id", x => x.Guid.Substring(0, 13)),
+            }
+        };
+
+        DetectLocalChangesAsyncCommand.Execute();
+    }
+
+
+    private void CollectChanges(List<LocalFileTreeAccessor.ChangeRecord> store, IEnumerable<LocalChangesNode> changesNode)
+    {
+        foreach (var n in changesNode)
+        {
+            if (n.Contents != null) CollectChanges(store, n.Contents);
+            else if (n.Included)
+            {
+                store.Add(new LocalFileTreeAccessor.ChangeRecord(Enum.Parse<ChangeType>(n.Type), new WorkspaceFile
+                {
+                    WorkPath = n.FullPath,
+                    ModifyTime = n.ModifiedTime!.Value
+                }));
+            }
+        }
+    }
+
+    [ReactiveCommand]
+    private async Task CommitSelectedChangesAsync()
+    {
+        var changes = new List<LocalFileTreeAccessor.ChangeRecord>();
+        CollectChanges(changes, LocalChangeSetRaw);
+
+        if (changes.Count == 0) return;
+        var manifest = await RepositoryService.C.CommitWorkspaceAsBaselineAsync(Repository, changes,
+            LocalDatabase.CommitMessage ?? string.Empty);
+        
+        if (manifest == null) return;
+        
+        LocalDatabase.LocalAccessor.SetBaseline(manifest.Value.FilePaths);
+        LocalDatabase.CommitMessage = string.Empty;
+        await DetectLocalChangesAsyncCommand.Execute();
     }
 
     [ReactiveCommand]

Flawless.Client/Views/RepositoryPage/RepoCommitPageView.axaml

@@ -7,8 +7,7 @@
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
              x:Class="Flawless.Client.Views.RepositoryPage.RepoCommitPageView">
     <Grid ColumnDefinitions="2*, *">
-        <TreeDataGrid Grid.Column="0">
+        <TreeDataGrid Grid.Column="0" Source="{Binding Commits}"/>
-        </TreeDataGrid>
         <Border Grid.Column="1" Classes="Shadow" Theme="{StaticResource CardBorder}">
             <ScrollViewer>
                 <StackPanel Spacing="4">

Flawless.Client/Views/RepositoryPage/RepoFileTreePageView.axaml

@@ -9,12 +9,12 @@
     <Grid ColumnDefinitions="2*, *">
         <TreeDataGrid Grid.Column="0">
         </TreeDataGrid>
-        <Border Grid.Column="1" Classes="Shadow" Theme="{StaticResource CardBorder}">
+        <!-- <Border Grid.Column="1" Classes="Shadow" Theme="{StaticResource CardBorder}"> -->
-            <ScrollViewer>
+        <!--     <ScrollViewer> -->
-                <StackPanel Spacing="4">
+        <!--         <StackPanel Spacing="4"> -->
-                    <Label Content="File History"/>
+        <!--             <Label Content="File History"/> -->
-                </StackPanel>
+        <!--         </StackPanel> -->
-            </ScrollViewer>
+        <!--     </ScrollViewer> -->
-        </Border>
+        <!-- </Border> -->
     </Grid>
 </UserControl>

Flawless.Client/Views/RepositoryPage/RepoWorkspacePageView.axaml

@@ -12,7 +12,7 @@
             <u:IconButton Icon="{StaticResource SemiIconRefresh}" Content="Detect"
                           Command="{Binding DetectLocalChangesAsyncCommand}"/>
             <u:IconButton Icon="{StaticResource SemiIconDownload}" Content="Pull"/>
-            <ToggleButton Content="Auto Refresh" IsChecked="{Binding AutoDetectChanges}"/>
+            <!-- <ToggleButton Content="Auto Refresh" IsChecked="{Binding AutoDetectChanges}"/> -->
         </StackPanel>
         <TreeDataGrid Grid.Row="1" Grid.Column="0" Source="{Binding LocalChange}" CanUserSortColumns="True"/>
         <Border Grid.Row="1" Grid.Column="2" Classes="Shadow" Theme="{StaticResource CardBorder}">
@@ -20,10 +20,10 @@
                 <u:Form HorizontalAlignment="Stretch">
                     <TextBox Text="{Binding LocalDatabase.CommitMessage}"
                              Classes="TextArea" MaxHeight="300" Watermark="Description of this commit"/>
-                    <SplitButton HorizontalAlignment="Stretch" Content="Commit">
+                    <SplitButton HorizontalAlignment="Stretch" Content="Commit" Command="{Binding CommitSelectedChangesCommand}">
                         <SplitButton.Flyout>
                             <MenuFlyout Placement="TopEdgeAlignedRight">
-                                <MenuItem Header="Force Commit as Baseline"/>
+                                <MenuItem Header="Force Commit as Baseline" Command="{Binding CommitSelectedChangesCommand}"/>
                             </MenuFlyout>
                         </SplitButton.Flyout>
                     </SplitButton>

Flawless.Communication/Request/CommitRequest.cs

@@ -8,9 +8,9 @@ public class CommitRequest
     
     public required string Message { get; set; }
     
-    public required WorkspaceFile[] WorkspaceSnapshot { get; set; }
+    public required List<string> WorkspaceSnapshot { get; set; }
     
-    public string[]? RequiredDepots { get; set; }
+    public List<string>? RequiredDepots { get; set; }
     
     public string? MainDepotId { get; set; } // If commit is not modify files, but changes workspace files (Delete) We will not require a main depot id.
     

Flawless.Communication/Response/CommitSuccessResponse.cs

@@ -1,3 +1,3 @@
 namespace Flawless.Communication.Response;
 
-public record CommitSuccessResponse(DateTime CommittedOn, Guid CommitId);
+public record CommitSuccessResponse(DateTime CommittedOn, Guid CommitId, Guid MainDepotId);

Flawless.Core/BinaryDataFormat/DataTransformer.cs

@@ -17,6 +17,132 @@ public static class DataTransformer
         return (byte)val;
     }
 
+    public static void CreateAndInsertStandardDepotFile
+        (Stream depotStream, IEnumerable<WorkspaceFile> workfiles, Func<WorkspaceFile, Stream> payloadLocator)
+    {
+        if (!depotStream.CanWrite || !depotStream.CanRead) throw new IOException("Depot stream is not writable/readable.");
+        if (payloadLocator == null) throw new ArgumentNullException(nameof(payloadLocator));
+
+        long headerStart = depotStream.Position;
+        long payloadStart = 0;
+        long payloadEnd = 0;
+        long fileMapStart = 0;
+        long fileMapEnd = 0;
+
+        try
+        {
+            using var writer = new BinaryWriter(depotStream, Encoding.ASCII, true);
+
+            writer.Write(StandardDepotHeaderV1.FormatMagicNumber);
+            writer.Write((uint) 0);
+            writer.Write((byte) 1); // Crc of header - later
+            writer.Write((byte) CompressType.Raw);
+            writer.Write((ushort) 0); // Preserved
+            writer.Write((uint) 0); // Preserved
+            writer.Write((ulong) 0); // Hash of this file - later
+            writer.Write((ulong) 0);
+            writer.Write(DateTime.UtcNow.ToBinary());
+            writer.Write((ulong) 0); // Filemap Size - later
+            writer.Write((ulong) 0); // Payload Size - later
+            writer.Write((ulong) 0); // Preserved
+            
+            writer.Flush();
+        }
+        catch (EndOfStreamException e)
+        {
+            throw new InvalidDataException("Stream is too small! Maybe file is broken.", e);
+        }
+        
+        
+        // Write files into binary
+        List<DepotFileInfo> fileinfos = new List<DepotFileInfo>();
+        try
+        {
+            // Payload start at here
+            payloadStart = depotStream.Position;
+            
+            foreach (var wf in workfiles)
+            {
+                var startPos = depotStream.Position;
+                using var rs = payloadLocator(wf);
+                
+                rs.CopyTo(depotStream);
+                fileinfos.Add(new DepotFileInfo(
+                    (ulong)(startPos - payloadStart),
+                    (ulong)(depotStream.Position - startPos),
+                    wf.ModifyTime, wf.WorkPath));
+                
+                depotStream.Flush();
+            }
+            
+            payloadEnd = depotStream.Position;
+            
+            // Filemap start at here
+            var splitor = '$';
+            fileMapStart = depotStream.Position;
+            
+            using (var writer = new StreamWriter(depotStream, Encoding.UTF8, 1024, true))
+            {
+                // Format: {Path}${Size}${ModifyTime}${Offset}$
+                foreach (var df in fileinfos)
+                {
+                    writer.Write(df.Path);
+                    writer.Write(splitor);
+                    
+                    writer.Write(df.Size.ToString());
+                    writer.Write(splitor);
+                    
+                    writer.Write(df.ModifyTime.ToBinary().ToString());
+                    writer.Write(splitor);
+                    
+                    writer.Write(df.Offset.ToString());
+                    writer.Write(splitor);
+                }
+            }
+            
+            depotStream.Flush();
+            
+            fileMapEnd = depotStream.Position;
+            
+        }
+        catch (EndOfStreamException e)
+        {
+            throw new InvalidDataException("Stream is too small! Maybe file is broken.", e);
+        }
+
+        // Write rest part of header and calculate crc
+        try
+        {
+            using var writer = new BinaryWriter(depotStream, Encoding.ASCII, true);
+
+            ulong payloadSize = (ulong)(payloadEnd - payloadStart);
+            ulong filemapSize = (ulong)(fileMapEnd - fileMapStart);
+            
+            // Write fs size
+            depotStream.Seek(headerStart + 40, SeekOrigin.Begin);
+            writer.Write(filemapSize);
+            writer.Write(payloadSize);
+            
+            writer.Flush();
+            
+            // Calculate CRC
+            depotStream.Seek(headerStart + 8, SeekOrigin.Begin);
+            Span<byte> crcArea = stackalloc byte[64 - 8];
+            if (depotStream.Read(crcArea) != 64 - 8) throw new InvalidDataException("Stream is too short!");
+            var crc = Crc32.HashToUInt32(crcArea);
+            
+            // Write CRC
+            depotStream.Seek(headerStart + 4, SeekOrigin.Begin);
+            writer.Write(crc);
+            
+            writer.Flush();
+        }
+        catch (EndOfStreamException e)
+        {
+            throw new InvalidDataException("Stream is too small! Maybe file is broken.", e);
+        }
+        
+    }
 
     public static StandardDepotHeaderV1 ExtractStandardDepotHeaderV1(Stream depotStream)
     {
@@ -76,7 +202,7 @@ public static class DataTransformer
     public static async IAsyncEnumerable<DepotFileInfo> ExtractDepotFileInfoMapAsync(Stream depotStream, ulong fileMapSize)
     {
         var splitor = '$';
-        depotStream.Seek((long) fileMapSize, SeekOrigin.End);
+        depotStream.Seek(-(long)fileMapSize, SeekOrigin.End);
 
         var state = -1;
         var buffer = new char[64];
@@ -91,10 +217,18 @@ public static class DataTransformer
         // Read loop
         while (true)
         {
+            int length = 0;
+            
             try
             {
-                var length = await reader.ReadBlockAsync(buffer, 0, 64);
+                length = await reader.ReadBlockAsync(buffer, 0, 64);
                 if (length == 0) break;
+            }
+            catch (EndOfStreamException e)
+            {
+                throw new InvalidDataException("Stream is too small! Maybe file is broken.", e);
+            }
+                
             for (int i = 0; i < length; i++)
             {
                 var c = buffer[i];
@@ -106,26 +240,22 @@ public static class DataTransformer
                         case 0: path = builder.ToString(); break;
                         case 1: size = ulong.Parse(builder.ToString()); break;
                         case 2: modifyTime = DateTime.FromBinary(long.Parse(builder.ToString())); break;
-                            case 3: offset = ulong.Parse(builder.ToString()); break;
+                        case 3:
+                        {
+                            offset = ulong.Parse(builder.ToString());
+                            yield return new DepotFileInfo(offset, size, modifyTime, path);
+                        } break;
                     }
                         
                     builder.Clear();
                 }
             }
-            }
-            catch (EndOfStreamException e)
-            {
-                throw new InvalidDataException("Stream is too small! Maybe file is broken.", e);
-            }
             
 
-            // Do output at here.
-            yield return new DepotFileInfo(offset, size, modifyTime, path);
-
         }
             
         // Check is this the real ending
-        if (builder.Length > 0 || state != 0) 
+        if (builder.Length > 0 || (state > 0 && state < 3)) 
             throw new InvalidDataException("Stream is too small! Maybe file is broken.");
     }
 }

Flawless.Core/BinaryDataFormat/StandardDepotObjectV1.cs

@@ -33,7 +33,7 @@ namespace Flawless.Core.BinaryDataFormat;
  * 14      : (Preserve)
  * 15      : (Preserve)
  * ------------------------------------------------------------
- * 16      : Depot MD5 Checksum (From 48 to end, uncompressed)
+ * 16      : Depot MD5 Checksum (From 64 to end, uncompressed)
  * 17      : ~
  * 18      : ~
  * 19      : ~

Flawless.Core/Modal/WorkspaceFile.cs

@@ -1,10 +1,17 @@
 namespace Flawless.Core.Modal;
 
+[Serializable]
 public struct WorkspaceFile : IEquatable<WorkspaceFile>
 {
-    public required DateTime ModifyTime;
+    public  DateTime ModifyTime { get; set; }
 
-    public required string WorkPath;
+    public string WorkPath { get; set; }
+
+    public WorkspaceFile(DateTime modifyTime, string workPath)
+    {
+        ModifyTime = modifyTime;
+        WorkPath = workPath;
+    }
     
     public bool Equals(WorkspaceFile other)
     {

Flawless.Server/Controllers/RepositoryInnieController.cs

@@ -1,6 +1,4 @@
-using System.Collections.Concurrent;
+using System.Text.Json;
-using System.Text.Json;
-using System.Text.Json.Serialization;
 using Flawless.Communication.Request;
 using Flawless.Communication.Response;
 using Flawless.Communication.Shared;
@@ -9,15 +7,13 @@ using Flawless.Core.Modal;
 using Flawless.Server.Models;
 using Flawless.Server.Services;
 using Flawless.Server.Utility;
-using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
-using Microsoft.OpenApi.Validations.Rules;
 
 namespace Flawless.Server.Controllers;
 
-[ApiController, Authorize, Route("api/repo/{userName}/{repositoryName}")]
+[ApiController, Microsoft.AspNetCore.Authorization.Authorize, Route("api/repo/{userName}/{repositoryName}")]
 public class RepositoryInnieController(
     UserManager<AppUser> userManager,
     AppDbContext dbContext,
@@ -223,30 +219,30 @@ public class RepositoryInnieController(
     }
 
 
-    [HttpGet("fetch_manifest")]
+    [HttpPost("fetch_manifest")]
-    [ProducesResponseType<FileStreamResult>(200)]
+    public async Task<ActionResult<CommitManifest>> DownloadManifestAsync(string userName, string repositoryName, [FromQuery] string commitId)
-    public async Task<IActionResult> DownloadManifestAsync(string userName, string repositoryName, [FromQuery] string commitId)
     {
         if (!Guid.TryParse(commitId, out var commitGuid)) return BadRequest(new FailedResponse("Invalid commit id"));
         var user = (await userManager.GetUserAsync(HttpContext.User))!;
         var grantIssue = await ValidateRepositoryAsync(userName, repositoryName, user, RepositoryRole.Guest);
-        if (grantIssue is not Repository rp) return (IActionResult) grantIssue;
+        if (grantIssue is not Repository rp) return (ActionResult) grantIssue;
         
         // Start checkout file.
         var target = transformer.GetCommitManifestPath(rp.Id, commitGuid);
-        if (System.IO.File.Exists(target)) return File(System.IO.File.OpenRead(target), "application/octet-stream");
+        if (!System.IO.File.Exists(target)) return NotFound(new FailedResponse($"Could not find commit manifest {target}"));
-        return NotFound(new FailedResponse($"Could not find commit manifest {target}"));
+
+        await using var manifest = System.IO.File.OpenRead(target);
+        return await JsonSerializer.DeserializeAsync<CommitManifest>(manifest);
     }
 
 
-    [HttpGet("fetch_depot")]
+    [HttpPost("fetch_depot")]
-    [ProducesResponseType<FileStreamResult>(200)]
+    public async Task<ActionResult<Stream>> DownloadDepotAsync(string userName, string repositoryName, [FromQuery] string depotId)
-    public async Task<IActionResult> DownloadDepotAsync(string userName, string repositoryName, [FromQuery] string depotId)
     {
         if (!Guid.TryParse(depotId, out var depotGuid)) return BadRequest(new FailedResponse("Invalid depot id"));
         var user = (await userManager.GetUserAsync(HttpContext.User))!;
         var grantIssue = await ValidateRepositoryAsync(userName, repositoryName, user, RepositoryRole.Guest);
-        if (grantIssue is not Repository rp) return (IActionResult) grantIssue;
+        if (grantIssue is not Repository rp) return (ActionResult) grantIssue;
         
         // Start checkout file.
         var target = transformer.GetDepotPath(rp.Id, depotGuid);
@@ -255,7 +251,7 @@ public class RepositoryInnieController(
         
     }
     
-    [HttpGet("list_commit")]
+    [HttpPost("list_commit")]
     public async Task<ActionResult<ListingResponse<RepositoryCommitResponse>>> ListCommitsAsync(string userName, string repositoryName)
     {
         var user = (await userManager.GetUserAsync(HttpContext.User))!;
@@ -277,7 +273,7 @@ public class RepositoryInnieController(
         return Ok(new ListingResponse<RepositoryCommitResponse>(r.ToArray()));
     }
 
-    [HttpGet("list_locked_files")]
+    [HttpPost("list_locked_files")]
     public async Task<ActionResult<ListingResponse<LockFileInfo>>> ListLocksAsync(string userName, string repositoryName)
     {
         var user = (await userManager.GetUserAsync(HttpContext.User))!;
@@ -393,6 +389,7 @@ public class RepositoryInnieController(
         var grantIssue = await ValidateRepositoryAsync(userName, repositoryName, user, RepositoryRole.Developer);
         if (grantIssue is not Repository rp) return (IActionResult) grantIssue;
         
+        // Appoint or upload a commit - two in one choice.
         if (req.Depot != null ^ req.MainDepotId != null) return await CommitInternalAsync(rp, user, req);
         
         // Not valid response
@@ -402,7 +399,17 @@ public class RepositoryInnieController(
 
     private async Task<IActionResult> CommitInternalAsync(Repository rp, AppUser user, FormCommitRequest req)
     {
-        var test = new HashSet<WorkspaceFile>(req.WorkspaceSnapshot);
+        var actualFs = req.WorkspaceSnapshot.Select(s =>
+        {
+            var idx = s.IndexOf('$');
+            if (idx < 0) throw new InvalidDataException($"WorkPath '{s}' is invalid!");
+            var dateTimeStr = s.Substring(0, idx);
+            var pathStr = s.Substring(idx + 1);
+            
+            return new WorkspaceFile(DateTime.FromBinary(long.Parse(dateTimeStr)), pathStr);
+        }).ToArray();
+
+        var test = new HashSet<WorkspaceFile>(actualFs);
         var createNewDepot = false;
         RepositoryDepot mainDepot;
         List<DepotLabel> depotLabels = new();
@@ -481,8 +488,13 @@ public class RepositoryInnieController(
                     .Where(cm => actualRequiredDepots.Contains(cm.DepotId))
                     .ToArrayAsync());
             
+            // Create commit and let it alloc a main key
+            rp.Depots.Add(mainDepot);
+            await dbContext.SaveChangesAsync();
+            
             // Then write depot into disk
             var depotPath = transformer.GetDepotPath(rp.Id, mainDepot.DepotId);
+            Directory.CreateDirectory(Path.GetDirectoryName(depotPath)!);
             await using (var depotStream = System.IO.File.Create(depotPath))
             {
                 cacheStream.Seek(0, SeekOrigin.Begin);
@@ -492,56 +504,51 @@ public class RepositoryInnieController(
             // Everything alright, so make response
             depotLabels.Add(new DepotLabel(mainDepot.DepotId, mainDepot.Length));
             depotLabels.AddRange(mainDepot.Dependencies.Select(d => new DepotLabel(d.DepotId, d.Length)));
-            rp.Depots.Add(mainDepot);
             
-            createNewDepot = true;
         }
 
-        // Create manifest file and write to disk
-        var commitId = Guid.NewGuid();
-        var manifestPath = transformer.GetCommitManifestPath(rp.Id, commitId);
-        var manifest = new CommitManifest
-        {
-            ManifestId = commitId,
-            Depot = depotLabels.ToArray(),
-            FilePaths = req.WorkspaceSnapshot
-        };
-        
-        await using (var manifestStream = System.IO.File.Create(manifestPath))
-            await JsonSerializer.SerializeAsync(manifestStream, manifest);
-
         // Create commit info
         var commit = new RepositoryCommit
         {
-            Id = commitId,
             Author = user,
             CommittedOn = DateTime.UtcNow,
             MainDepot = mainDepot,
-            Message = manifestPath
+            Message = req.Message,
         };
         
-        rp.Commits.Add(commit);
-        
         try
         {
             // Write changes into db.
+            rp.Commits.Add(commit);
             await dbContext.SaveChangesAsync();
         }
         catch (Exception)
         {
-            // Revert manifest create operation
+            // Revert depot create operation
-            if (createNewDepot) System.IO.File.Delete(transformer.GetDepotPath(rp.Id, mainDepot.DepotId));
+            System.IO.File.Delete(transformer.GetDepotPath(rp.Id, mainDepot.DepotId));
-            System.IO.File.Delete(manifestPath);
-
             throw;
         }
         
-        return Ok(new CommitSuccessResponse(commit.CommittedOn, commit.Id));
+        // Create manifest file and write to disk
+        var manifestPath = transformer.GetCommitManifestPath(rp.Id, commit.Id);
+        var manifest = new CommitManifest
+        {
+            ManifestId = commit.Id,
+            Depot = depotLabels.ToArray(),
+            FilePaths = actualFs
+        };
+        
+        Directory.CreateDirectory(Path.GetDirectoryName(manifestPath)!);
+        await using (var manifestStream = System.IO.File.Create(manifestPath))
+            await JsonSerializer.SerializeAsync(manifestStream, manifest);
+        
+        return Ok(new CommitSuccessResponse(commit.CommittedOn, commit.Id, mainDepot.DepotId));
     }
 
     private static async ValueTask StencilWorkspaceSnapshotAsync(Stream depotStream, HashSet<WorkspaceFile> unresolved)
     {
         // Get version
+        depotStream.Seek(0, SeekOrigin.Begin); // Fix: Get an invalid version code due to offset is bad.
         var version = DataTransformer.GuessStandardDepotHeaderVersion(depotStream);
         if (version != 1) throw new InvalidDataException($"Unable to get depot header version, feedback is {version}.");
         

Flawless.Server/Flawless.Server.csproj

@@ -38,6 +38,8 @@
     </ItemGroup>
 
     <ItemGroup>
+      <Folder Include="data\development\ff9864da-eac3-41f5-9d0f-99d51e608743\Depots\" />
+      <Folder Include="data\development\ff9864da-eac3-41f5-9d0f-99d51e608743\Manifests\" />
       <Folder Include="Exceptions\" />
     </ItemGroup>
 

Flawless.Server/Models/Repository.cs

@@ -7,7 +7,7 @@ public class Repository
 {
     [Key]
     [Required]
-    public Guid Id { get; set; } = Guid.NewGuid();
+    public Guid Id { get; set; }
     
     [Required]
     public required AppUser Owner { get; set; }

Flawless.Server/Models/RepositoryCommit.cs

@@ -5,17 +5,17 @@ namespace Flawless.Server.Models;
 public class RepositoryCommit
 {
     [Required]
-    public required Guid Id { get; set; } = Guid.NewGuid();
+    public Guid Id { get; set; }
     
     [Required]
-    public required AppUser Author { get; set; }
+    public AppUser Author { get; set; }
     
     [Required]
-    public required DateTime CommittedOn { get; set; }
+    public DateTime CommittedOn { get; set; }
     
     [Required]
-    public required string Message { get; set; } = String.Empty;
+    public string Message { get; set; } = String.Empty;
 
     [Required]
-    public required RepositoryDepot MainDepot { get; set; }
+    public RepositoryDepot MainDepot { get; set; }
 }

Flawless.Server/Models/RepositoryDepot.cs

@@ -6,7 +6,7 @@ public class RepositoryDepot
 {
     [Key]
     [Required]
-    public Guid DepotId { get; set; } = Guid.NewGuid();
+    public Guid DepotId { get; set; }
     
     [Required]
     public long Length { get; set; }

Flawless.Server/Models/RepositoryMember.cs

@@ -5,9 +5,7 @@ namespace Flawless.Server.Models;
 
 public class RepositoryMember
 {
-    [Key]
+    [Key] [Required] public Guid Id { get; set; }
-    [Required]
-    public Guid Id { get; set; } = Guid.NewGuid();
 
     [Required]
     public required AppUser User { get; set; }

Flawless.Server/Program.cs

@@ -34,6 +34,12 @@ public static class Program
 
     private static void ConfigAppService(WebApplicationBuilder builder)
     {
+        // Set size limit
+        builder.WebHost.ConfigureKestrel(opt =>
+        {
+            opt.Limits.MaxRequestBodySize = long.MaxValue; // As big as possible...
+        });
+        
         // Api related
         builder.Services.AddSingleton<PathTransformer>();
         builder.Services.AddOpenApi();