CODEWITHSUNDEEP
c#.netzipdirectorycompression
dsp_099
dsp_099

Reputation: 6121

How to extract a folder from zip file using SharpZipLib?

I have a test.zip file which contains inside a Folder with a bunch of other files and folders in it.

I found SharpZipLib after figuring out that .gz / GzipStream was not the way to go since its only for individual files. More importantly, doing this is similar to using GZipStream meaning it will create a FILE. But I have whole folder zipped. How do I unzip to a

For some reason the example unzipping here is set to ignore directories, so I'm not totally sure how that is done.

Also, I need to use .NET 2.0 for accomplish this.

Upvotes: 19

Views: 41546

Answers (2)

losangelo
losangelo

Reputation: 21

This is how I did it:

public void UnZipp(string srcDirPath, string destDirPath)
{
        ZipInputStream zipIn = null;
        FileStream streamWriter = null;

        try
        {
            Directory.CreateDirectory(Path.GetDirectoryName(destDirPath));

            zipIn = new ZipInputStream(File.OpenRead(srcDirPath));
            ZipEntry entry;

            while ((entry = zipIn.GetNextEntry()) != null)
            {
                string dirPath = Path.GetDirectoryName(destDirPath + entry.Name);

                if (!Directory.Exists(dirPath))
                {
                    Directory.CreateDirectory(dirPath);
                }

                if (!entry.IsDirectory)
                {
                    streamWriter = File.Create(destDirPath + entry.Name);
                    int size = 2048;
                    byte[] buffer = new byte[size];

                    while ((size = zipIn.Read(buffer, 0, buffer.Length)) > 0)
                    {
                        streamWriter.Write(buffer, 0, size);
                    }
                }

                streamWriter.Close();
            }
        }
        catch (System.Threading.ThreadAbortException lException)
        {
            // do nothing
        }
        catch (Exception ex)
        {
            throw (ex);
        }
        finally
        {
            if (zipIn != null)
            {
                zipIn.Close();
            }

            if (streamWriter != null)
            {
                streamWriter.Close();
            }
        }
    }

It's sloppy but I hope it helps!

Upvotes: 1

Alexander V.
Alexander V.

Reputation: 1538

I think it is the easier way. Default functionality (please look here for more info https://github.com/icsharpcode/SharpZipLib/wiki/FastZip)

it extract with folders.

code:

using System;
using ICSharpCode.SharpZipLib.Zip;

var zipFileName = @"T:\Temp\Libs\SharpZipLib_0860_Bin.zip";
var targetDir = @"T:\Temp\Libs\unpack";
FastZip fastZip = new FastZip();
string fileFilter = null;

// Will always overwrite if target filenames already exist
fastZip.ExtractZip(zipFileName, targetDir, fileFilter);

Upvotes: 46

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