推荐一个C#开发的、跨平台的解压缩的开源项

解压缩对于我们日常工作太经常用到了，毕竟它有诸多好处，比如节省空间、方便管理传输、保密作用等等。

而对于我们开发人员来说，项目开发也是经常需要用到，今天就给大家推荐用一个可以用于压缩、解压、解密，并支持多种压缩类型和格式的开源项目。

项目简介

这是一个纯C#压缩库，用于.NET Standard 2.0、2.1、.NET Core 3.1和.NET 5.0，支持格式有zip/tar/bzip2/gzip/lzip，功能实现有解压缩rar, 解压缩7zip, 解压缩zip, 解压缩tar解压缩bzip2, 解压缩gzip, 解压缩lzip。.

项目结构

使用方法

压缩核心代码

protected void Write(CompressionType compressionType, string archive, string archiveToVerifyAgainst, Encoding encoding = null)

{using (Stream stream = File.OpenWrite(Path.Combine(SCRATCH2_FILES_PATH, archive))) { WriterOptions writerOptions = new WriterOptions(compressionType) { LeaveStreamOpen = true, };
writerOptions.ArchiveEncoding.Default = encoding ?? Encoding.Default;
using (var writer = WriterFactory.Open(stream, type, writerOptions)) { writer.WriteAll(ORIGINAL_FILES_PATH, "*", SearchOption.AllDirectories); } } CompareArchivesByPath(Path.Combine(SCRATCH2_FILES_PATH, archive), Path.Combine(TEST_ARCHIVES_PATH, archiveToVerifyAgainst));
using (Stream stream = File.OpenRead(Path.Combine(SCRATCH2_FILES_PATH, archive))) { ReaderOptions readerOptions = new ReaderOptions();
readerOptions.ArchiveEncoding.Default = encoding ?? Encoding.Default;
using (var reader = ReaderFactory.Open(NonDisposingStream.Create(stream), readerOptions)) { reader.WriteAllToDirectory(SCRATCH_FILES_PATH, new ExtractionOptions() { ExtractFullPath = true }); } } VerifyFiles(); }

解压核心代码

public abstract class ReaderTests : TestBase {protected void Read(string testArchive, CompressionType expectedCompression, ReaderOptions options = null) { testArchive = Path.Combine(TEST_ARCHIVES_PATH, testArchive);
options = options ?? new ReaderOptions();
options.LeaveStreamOpen = true; ReadImpl(testArchive, expectedCompression, options);
options.LeaveStreamOpen = false; ReadImpl(testArchive, expectedCompression, options); VerifyFiles(); }
private void ReadImpl(string testArchive, CompressionType expectedCompression, ReaderOptions options) {using (var file = File.OpenRead(testArchive)) {using (var protectedStream = NonDisposingStream.Create(new ForwardOnlyStream(file), throwOnDispose: true)) {using (var testStream = new TestStream(protectedStream)) {using (var reader = ReaderFactory.Open(testStream, options)) { UseReader(reader, expectedCompression); protectedStream.ThrowOnDispose = false; Assert.False(testStream.IsDisposed, "{nameof(testStream)} prematurely closed"); }
// Boolean XOR -- If the stream should be left open (true), then the stream should not be diposed (false)// and if the stream should be closed (false), then the stream should be disposed (true)

var message = $"{nameof(options.LeaveStreamOpen)} is set to '{options.LeaveStreamOpen}', so {nameof(testStream.IsDisposed)} should be set to '{!testStream.IsDisposed}', but is set to {testStream.IsDisposed}";

Assert.True(options.LeaveStreamOpen != testStream.IsDisposed, message); } } } }
public void UseReader(IReader reader, CompressionType expectedCompression) {while (reader.MoveToNextEntry()) {if (!reader.Entry.IsDirectory) { Assert.Equal(expectedCompression, reader.Entry.CompressionType); reader.WriteEntryToDirectory(SCRATCH_FILES_PATH, new ExtractionOptions() { ExtractFullPath = true, Overwrite = true }); } } } }

zip压缩用法

Write(CompressionType.None, "Zip.none.noEmptyDirs.zip", "Zip.none.noEmptyDirs.zip", Encoding.UTF8);

zip解压用法

Read("Zip.zipx", CompressionType.LZMA);

项目还未支持

RAR 5 解密
7Zip 写入
Zip64 解压缩
多卷Zip支持

项目地址：https://github.com/adamhathcock/sharpcompress

项目简介

项目结构

董川民