Sewer56.DeltaPatchGenerator 2.0.1

dotnet add package Sewer56.DeltaPatchGenerator --version 2.0.1
NuGet\Install-Package Sewer56.DeltaPatchGenerator -Version 2.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Sewer56.DeltaPatchGenerator" Version="2.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Sewer56.DeltaPatchGenerator --version 2.0.1
#r "nuget: Sewer56.DeltaPatchGenerator, 2.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Sewer56.DeltaPatchGenerator as a Cake Addin
#addin nuget:?package=Sewer56.DeltaPatchGenerator&version=2.0.1

// Install Sewer56.DeltaPatchGenerator as a Cake Tool
#tool nuget:?package=Sewer56.DeltaPatchGenerator&version=2.0.1

Delta Patch Generator Lib by Sewer56

This is an easy to comsume, fast library for generating Delta Patches. Note: API is folder based. All operations act on folders and effect all files inside.

Basic Usage: Verify Files

Generate Hash Set:

// Generate a set of hashes for a directory.
var hashes = HashSet.Generate(Assets.MismatchFolderOriginal);


// missingFiles: Files missing from target folder.
// hashMismatches: Files with a non-matching hash.
bool matches = HashSet.Verify(hashes, targetFolder, out var missingFiles, out var hashMismatches)

Basic Usage: Generate Patch


// Create a patch that transforms one folder into another.
// Save it into `patchFolder`
var patch  = Patch.Generate(originalFolder, targetFolder, patchFolder);


// Patches all files in folderToPatch. Patched files are moved to patchedFilesOutput.
Patch.Apply(patch, folderToPatch, patchedFilesOutput);
  • Patches use VCDiff based Delta Compression using an optimized port of Google open-vcdiff.

Basic Usage: Cleanup

Delta generator can also be used to remove any files outside of a provided list of files.

// Make Hashes
var hashes = HashSet.Generate(Assets.AddMissingFileFolderOriginal);

// Remove extra files.
HashSet.Cleanup(hashes, folder);

You can supply an event/function that can be used to confirm whether a file can be deleted.

Basic Usage: General

Results of most operations (e.g. Patch.Generate(), HashSet.Generate()) and be saved and loaded from disk.


  • RAM: Memory usage explodes relative to file size. When creating a patch for a 1.5GB file, expect 6GB+ RAM usage. Applying patches is pretty much free though.

  • File Size: Max file size for individual file is 2GB.

Additional Credits

VCDiff Implementation

  • Folks at Google for creating open-vcdiff.
  • Metric for porting open-vcdiff to .NET.
  • SnowflakePowered (Ronny Chan) for optimizing the .NET port of open-vcdiff.

Additional optimisations by myself 😃

Hashing Implementation

  • Yann Collet for creating the xxHash hashing algorithm.
  • Melnik Alexander for high performance port of xxHash.

Doki Doki Literature Club

  • A Product of Team Salvato.
Product Compatible and additional computed target framework versions.
.NET net5.0 is compatible.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp3.0 was computed.  netcoreapp3.1 is compatible. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Sewer56.DeltaPatchGenerator:

Package Downloads

The packaging component of Sewer56.Update. Contains the necessary component for creating packages and releases.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
2.0.1 5,812 7/24/2022
2.0.0 380 7/24/2022
1.0.4 5,497 12/14/2021
1.0.3 220 12/14/2021
1.0.1 2,188 11/17/2021
1.0.0 306 11/11/2021