Rar file decompress?

Hi,

How would one go about decompressing a Rar file (images inside) into another folder in Unity (Deployment platform Oculus Go). I have been researching for couple of days now and just getting more confused.

I know that there are libraries like SharpCompress, but can't find documentation on how to use them (Beginner here).

Any help would be appreciated.

 

could you use zips instead?
then theres ready plugins, https://www.assetstore.unity3d.com/en/?stay#!/content/12674

 

I suggest use 7-zip, can decompress most files. Also give options to encrypt/decrypt files and more. And is free to use.
Using it for years, and had no single issue.
RAR is pain in backside.

 

Using zips is sadly not an option because I have no control over source material. They are rar files that have photos (like Summer2017.rar). Now I have a nasty workaround. I loaded all the compressed files to my NAS-drive and manually decompressed all the pics. And my app loads the photos from my drive. This is not long term option since new files are added almost daily on remote server.

 

you could add script on the server to do that conversion automatically

 

Yes, but I can't host the photos for very long, and on the original server where the rar-files are, I am not allowed.

Still looking for solution. My knowledge just is not enough to compile SharpCompress from GitHub to a library. I can't even open that in Visual Studio. Just get error messages.

 

conversion can happen directly after the .rar file is uploaded (if they are),
but yes, you would need to have access to the server to do that..

another alternative,
have a 2nd server (that you have full access to create scripts) download the requested rar file,
do the conversion there, then pass zip file to client download.


*quickly tested SharpCompress, opened in vs2017, F5 to compile into dll, copy dll to unity project, tested small zip creation script, switch to android platform, can build .apk (should fix the file paths, but probably could work on device, i dont have android here to test now)

 

Hi,

Thanks for everyone's suggestions. I found a ready dll from nuget, and after that it was quite easy.

Thanks for your effort. Found compiled dll from nuget and worked fine in editor and Windows build. However on Android seems to be a no go. Found similar comments online. Deploys fine to Oculus, but doesn't work.

Code (CSharp):

1. using (var archive = RarArchive.Open("/mnt/sdcard/rar/r.rar"))
2.             {
3.                
4.                 kuutio.SetActive(false); // [B]Just a cube in view to test if code exetutes to this point on Android. It Doesn't.[/B]
5.        
6.                 foreach (var entry in archive.Entries.Where(entry => !entry.IsDirectory))
7.                 {
8.                     entry.WriteToDirectory("/mnt/sdcard/unPacked/", new ExtractionOptions()
9.                     {
10.                         ExtractFullPath = true,
11.                         Overwrite = true
12.                     });
13.                 }
14.             }

Got this sample code working in editor (not that I understand it), but even the SetActive test doesn't execute.

 

check device log for errors, could be wrong path.
https://answers.unity.com/questions/492681/how-to-use-adb-logcat.html

 

First time using logcat.

There was mentions about SharpCompress. And the file paths are correct (I can load uncompressed images just fine from these locations).

 

that seems to happen with IL2CPP build, mono works?

 

Thank you especially to mgear for his efforts to help me. I was using mono.
However went with plan B. Bought a Qnap ts-251+ Nas-drive for my brother who has a static IP-address and an upload speed of min 50MB/s. He will now host all those family photoalbums unpacked.