Community.Archives.Cpio 0.0.4

Community.Archives.Cpio

A fast and efficient forward-only reader for Cpio archives.

• 🚀 Fast and efficient: Only extracts matched file. Forward-only access. Uses Task to offload IO to separate threads.
• 😀 Licensed under MIT. Similar projects are licensed under GPL.
• 😍 100% test coverage

This package is part of Gitii/Community.Archives: A collection of libraries that support reading various popular archives.

Supported frameworks

• .Net Standard 2.1
• .Net 5
• .Net 6

On any platform that's supported by the above frameworks, including Windows, Linux and MacOS.

Reader specifications

CpioArchiveReader is implemented based on Ubuntu Manpage - cpio — format of cpio archive files.

• Only New ASCII Format format is supported

• Cpio files do not have metadata. GetMetaDataAsync will throw an exception at runtime.

Getting started

Extract all or specific files

var reader = new CpioArchiveReader();

await foreach (
    var entry in reader
        .GetFileEntriesAsync(stream, IArchiveReader.MATCH_ALL_FILES)
) {
    // entry.Name
    // entry.Content
    Console.WriteLine($"Found file {entry.Name} ({entry.Content.Length} bytes)")
}

Extract specific files only

var reader = new CpioArchiveReader();

// use regular expression to match files (path + file name)
await foreach (
    var entry in reader
        .GetFileEntriesAsync(stream, "[.]md$", "[.]txt$")
) {
    // found a Markdown or text file
}