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SharpCompressStudy
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wanggaofeng 7 months ago
parent 2327b62d67
commit f40f1c9a23
6 changed files with 84 additions and 208 deletions
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196
SharpCompressStudy.Core/CommonUtility.cs
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@ -1,13 +1,12 @@
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO.Compression;
using System.Linq;
using System.Text;
using System.Text.Unicode;
using System.Threading.Tasks;
using SharpCompress;
using SharpCompress.Common;
using SharpCompress.Factories;
using SharpCompress.Writers;
@ -21,168 +20,133 @@ using SharpCompress.Archives.Tar;
using SharpCompress.Archives.SevenZip;
using SharpCompress.Readers;
namespace SharpCompressStudy.Core
{
public static class CommonUtility
{
/// <summary>
/// 解压文件
/// (解压到压缩文件所在目录)
/// </summary>
/// <param name="fileName">压缩文件包</param>
/// <param name="isDelete">解压后删除压缩文件</param>
public static void Decompress(string fileName, bool isDelete)
{
var extName = Path.GetExtension(fileName).Trim().ToLower();
switch (extName)
{
case ".rar":
DecompressRarFile(fileName, isDelete);
break;
case ".zip":
DecompressZipFile(fileName, isDelete);
break;
case ".gzip":
DecompressGzipFile(fileName, isDelete);
break;
case ".gz":
DecompressGzFile(fileName, isDelete);
break;
default:
break;
}
if (isDelete)
{
File.Delete(fileName);
if (string.IsNullOrWhiteSpace(fileName))
{
throw new ArgumentNullException($"{fileName}");
}
}
private static void DecompressRarFile(string fileName, bool isDelete)
{
ArgumentNullException.ThrowIfNull(fileName);
var extName = Path.GetExtension(fileName);
var descDir = Path.Combine(Path.GetDirectoryName(fileName)!, new FileInfo(fileName).Name.Replace(extName,"") + "\\");
if (!Directory.Exists(descDir))
if (!File.Exists(fileName))
{
Directory.CreateDirectory(descDir);
throw new FileNotFoundException($"{fileName} not found");
}
try
{
using (Stream stream = File.OpenRead(fileName))
{
var reader = ReaderFactory.Open(stream);
while (reader.MoveToNextEntry())
{
if (!reader.Entry.IsDirectory)
{
Console.WriteLine(reader.Entry.Key);
reader.WriteEntryToDirectory(descDir, new ExtractionOptions() { ExtractFullPath = true, Overwrite = true });
}
}
}
if (isDelete)
{
File.Delete(fileName);
}
}
catch (Exception ex)
{
Console.Write($"解压报错,错误：{ex}");
throw;
}
}
//扩展名
var extName = Path.GetExtension(fileName).Trim().ToLower();
private static void DecompressZipFile(string fileName, bool isDelete)
{
try
{
ExtractionOptions options = new ExtractionOptions();
//文件名
var rarFileName = Path.GetFileName(fileName);
//抽取顶级目录
var extractPath = Directory.GetParent(fileName)?.FullName + "22";
if (!Directory.Exists(extractPath))
{
Directory.CreateDirectory(extractPath);
}
//不带扩展名的文件名
var rarFileNameWithoutExt = Path.GetFileNameWithoutExtension(fileName);
//解压根目录
string extractPath = Path.GetDirectoryName(fileName) ?? "";
var archive = ArchiveFactory.Open(fileName);
foreach (var entry in archive.Entries)
//解压文件
using (var archive = GetArchiveByExtName(fileName))
{
//加密的
if (entry.IsEncrypted)
//创建解压目录
if (!Directory.Exists(extractPath))
{
continue;
Directory.CreateDirectory(extractPath);
}
if (entry.IsDirectory)
//解压所有文件到指定目录
foreach (var entry in archive.Entries)
{
if (!entry.IsDirectory)
{
entry.WriteToDirectory(extractPath, new ExtractionOptions { ExtractFullPath = true, Overwrite = true });
}
}
else
//如果整体解压到一个同名目录，则把同名目录内容提取到当前目录，并删除同名目录
if (archive.Entries.Where(f => f.IsDirectory && f.Key == rarFileNameWithoutExt).Count() == 1)
{
entry.WriteToDirectory(extractPath, new ExtractionOptions() { ExtractFullPath = true, Overwrite = true });
var dir = new DirectoryInfo(Path.Combine(extractPath, rarFileNameWithoutExt));
dir.GetDirectories().ForEach(f =>
{
var toDir = Path.Combine(extractPath, f.Name);
if (Directory.Exists(toDir))
{
Directory.Delete(toDir, true);
}
f.MoveTo(toDir);
});
dir.GetFiles().ForEach(f =>
{
f.MoveTo(Path.Combine(extractPath, f.Name), true);
});
dir.Delete();
}
}
if (isDelete)
//删除压缩文件
if (isDelete && File.Exists(fileName))
{
File.Delete(fileName);
}
}
catch (Exception ex)
{
Console.Write($"解压报错,错误：{ex.Message}");
Console.Write($"解压报错,错误：{ex}");
throw;
}
}
private static void DecompressGzipFile(string fileName, bool isDelete)
/// <summary>
/// 按扩展名获取IArchive对象
/// </summary>
/// <param name="compressFileName">压缩文件</param>
/// <returns>IArchive对象</returns>
/// <exception cref="ArchiveException">压缩文件类型不支持异常</exception>
private static IArchive GetArchiveByExtName(string compressFileName)
{
try
IArchive archive;
var extName = Path.GetExtension(compressFileName).Trim().ToLower();
switch (extName)
{
case ".rar":
archive = RarArchive.Open(compressFileName);
break;
if (isDelete)
{
File.Delete(fileName);
}
case ".zip":
archive = ZipArchive.Open(compressFileName);
break;
}
catch (Exception ex)
{
Console.Write($"解压报错,错误：{ex}");
throw;
}
}
case ".7z":
archive = SevenZipArchive.Open(compressFileName);
break;
private static void DecompressGzFile(string fileName, bool isDelete)
{
try
{
if (isDelete)
{
File.Delete(fileName);
}
}
catch (Exception ex)
{
Console.Write($"解压报错,错误：{ex}");
throw;
case ".gz":
archive = GZipArchive.Open(compressFileName);
break;
case ".tar":
archive = TarArchive.Open(compressFileName);
break;
default:
throw new ArchiveException($"不支持的压缩文件格式[{compressFileName}]");
}
return archive;
}
}
}

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SharpCompressStudy.Core/Resource/利港模型AB文件.rar
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SharpCompressStudy.Core/Resource/学习.rar
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3
SharpCompressStudy.Core/SharpCompressStudy.Core.csproj
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@ -11,6 +11,9 @@
</ItemGroup>
<ItemGroup>
<None Update="Resource\利港模型AB文件.rar">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Update="Resource\利港模型AB文件.zip">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>

2
SharpCompressStudy.Test/CommonUtilityTest.cs
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@ -6,7 +6,7 @@ namespace SharpCompressStudy
public void Zip_Test()
{
var file = AppDomain.CurrentDomain.BaseDirectory + "/Resource/" + "利港模型AB文件.zip";
CommonUtility.Decompress(file,false);
CommonUtility.Decompress(file,true);
}
[Fact]

91
SharpCompressStudy.Test/WinRarFileTest.cs
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@ -1,91 +0,0 @@
namespace SharpCompressStudy.Core
{
/// <summary>
/// 因为：Rar压缩算法是私有的，而解压文件算法是公开的。
/// 所以：不能创建Rar压缩文件，但能解压现有Rar文件。
/// 能解压和创建zip、tar、7z等压缩格式的文件
/// </summary>
public class WinRarFileTest:IDisposable
{
private readonly ITestOutputHelper testOutput;
public WinRarFileTest(ITestOutputHelper testOutputHelper)
{
this.testOutput = testOutputHelper;
}
/// <summary>
/// 解压Rar文件
/// 注意：不能创建Rar压缩文件
/// </summary>
[Fact]
public void ExtractFromRar_Test()
{
var rarFilePath = AppDomain.CurrentDomain.BaseDirectory + "Resource\\学习2.rar";
if (!File.Exists(rarFilePath))
{
throw new FileNotFoundException("Rar文件不存在");
}
//扩展名
var extName = Path.GetExtension(rarFilePath);
//文件名
var rarFileName = Path.GetFileName(rarFilePath).Replace(extName, "");
//不带扩展名的文件名
var rarFileNameWithoutExt = Path.GetFileNameWithoutExtension(rarFilePath);
//解压根目录
var extractPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resource\\models\\temp\\", Guid.NewGuid().ToString() + "\\");
using (var archive = RarArchive.Open(rarFilePath))
{
//压缩文件是否包含同名根目录(abc.rar解决后是否有一个名为abc的根目录)
if (archive.Entries.Where(f => f.IsDirectory && f.Key == rarFileNameWithoutExt).Count() != 1)
{
extractPath = Path.Combine(extractPath, rarFileNameWithoutExt);
}
//创建解压目录
if (!Directory.Exists(extractPath))
{
Directory.CreateDirectory(extractPath);
}
//解压所有文件到指定目录
foreach (var entry in archive.Entries)
{
if (!entry.IsDirectory)
{
entry.WriteToDirectory(extractPath, new ExtractionOptions { ExtractFullPath = true, Overwrite = true });
}
}
}
testOutput.WriteLine($"文件解压到目录：{extractPath}");
}
[Fact]
public void CompressToZip_Test()
{
string filesPath = AppDomain.CurrentDomain.BaseDirectory + "Resource\\学习";
var extractPathFolder = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resource\\", Guid.NewGuid().ToString() + "\\");
var extractPathFile = Path.Combine(extractPathFolder, "学习.zip");
if (!Directory.Exists(extractPathFolder))
{
Directory.CreateDirectory(extractPathFolder);
}
using var zip = File.OpenWrite(extractPathFile);
using var zipWriter = WriterFactory.Open(zip, ArchiveType.Zip, CompressionType.Deflate);
zipWriter.WriteAll(filesPath, "*", SearchOption.AllDirectories);
}
public void Dispose()
{
GC.SuppressFinalize(this);
}
}
}
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