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kotlinlang

Hi all. I'm looking for any advice on an archive library for Kotlin. Preferable would be something that can read zip and rar files. Any advice?

if it's android/jvm specific, I'd use <https://docs.oracle.com/javase/8/docs/api/java/util/zip/ZipFile.html>, <https://commons.apache.org/proper/commons-compress/apidocs/org/apache/commons/compress/archivers/zip/ZipFile.html>, or <https://docs.oracle.com/javase/8/docs/technotes/guides/io/fsp/zipfilesystemprovider.html>

RAR is proprietary and contains a wide range of compression methods over different versions, so that will be more difficult

<@UJQB4DJF7> For RAR, I'm only looking for extracting files, not compressing them.

There's a library for Java that I use on a server project to extract files from RAR archives. I'm hoping to find similar for Kotlin.

if you're talking about junrar, it's bound by the <https://github.com/pmachapman/unrar/blob/master/license.txt|unrar license> (as it's a port) and it is not synced up to RAR 5

<@UJQB4DJF7> This one is a KMP targeting, initially, iOS and Android.

you can try porting unrar yourself, I do not know of any existing projects

Ugh, that could take some time. :disappointed: I'll likely end up just dropping support for RAR files initially and just focusing on ZIP in that case.

I did just see another project on GitHub that targets Android and uses this library:

me.zhanghai.android.libarchive:library:1.1.4

<https://github.com/WirelessAlien/ZipXtract>

The library's not written in Kotlin, but is it possible to use it from Kotlin?

The project above is written in Kotlin, though, so it must be possible.

it uses libarchive through JNI. you'll have to write your own bindings for native etc. if you want to use the same approach