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A cross-platform abstract/virtual filesystem framework with many built-ins filesystems for .NET

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Zio ci Coverage Status NuGet

Zio provides a simple, powerful, cross-platform filesystem abstraction for .NET with many built-ins filesystems.

Features

  • Compatible with .NET 4.6+, netstandard2.0, netstandard2.1 and net7.0
  • API providing all operations provided by the regular System.IO API (e.g File.Move, Directory.Delete... etc.)
    • Allowing atomic filesystem operations (e.g File.Replace...)
  • A simple interface abstraction IFileSystem
  • Supports for filesystem watcher through the IFileSystem.Watch method and the IFileSystemWatcher interface
    • For all builtin filesystems (aggregates, memory...etc.)
  • All paths are normalized through a lightweight uniform path struct UPath
  • Multiple built-ins filesystems:
    • PhysicalFileSystem to access the physical disks, directories and folders.
      • With uniform paths, this filesystem on Windows is working like on a Windows Subsystem Linux (WSL), by remapping drives to mount directory (e.g path /mnt/c/Windows equivalent to C:\Windows)
    • MemoryFileSystem to access a filesystem in memory:
      • Trying to be 100% compatible with a true PhysicalFileSystem (including exceptions)
      • Efficient concurrency with a per node (file or directory) locking mechanism
      • A safe hierarchical locking strategy (following Unix kernel recommendations for directory locking)
      • Support for FileShare.Read, FileShare.Write and FileShare.ReadWrite
      • Internally support for filesystem atomic operations (File.Replace)
    • ZipArchiveFileSystem to access zip archives:
      • This filesystem is a wrapper around the ZipArchive class
      • It can work in case sensitive and case insensitive mode
      • Support for FileShare.Read with ZipArchiveMode.Read
    • On top of these final filesystem, you can compose more complex filesystems:
      • AggregateFileSystem providing a read-only filesystem aggregating multiple filesystem that offers a merged view
      • MountFileSystem to mount different filesystems at a specific mount point name
      • SubFileSystem to view a sub-folder of another filesystem as if it was a root / directory
      • ReadOnlyFileSystem to interact safely with another filesystem in read-only mode
  • Higher level API similar to FileSystemEntry, FileEntry and DirectoryEntry offering a similar API to their respective FileSystemInfo, FileInfo, DirectoryInfo

Usage

Accessing a physical filesystem:

var fs = new PhysicalFileSystem();
foreach(var dir in fs.EnumerateDirectories("/mnt/c"))
{
    // ...
}

Using an in-memory filesystem:

var fs = new MemoryFileSystem();
fs.WriteAllText("/temp.txt", "This is a content");
if (fs.FileExists("/temp.txt"))
{
    Console.WriteLine("The content of the file:" + fs.ReadAllText("/temp.txt"))
}

The following documentation provides more information about the API and how to use it.

Documentation

The documentation is directly available as part of this repository in the /doc folder.

Download

Zio is available as a NuGet package: NuGet

Build

In order to build Zio, you need to install Visual Studio 2022 with latest .NET 7.0

License

This software is released under the BSD-Clause 2 license.

Credits

The logo is File by jeff from the Noun Project

Author

Alexandre MUTEL aka xoofx

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A cross-platform abstract/virtual filesystem framework with many built-ins filesystems for .NET

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