Add libarchive support

Add "libarchive/bsdtar" and "The Unarchiver/unar" support for (rar and others)
files support

bsdtar and unar support rar v3[0][1]

[0]http://libarchive.org
[1]http://unarchiver.c3.cx/formats

[infirit]

Unarchiver is already used for rar files if unrar is not found, ac5d324.

And as I understand bsdtar is compatible with gnu tar so it is up to the distribution to make it work with bsdtar.

yes you're right, but libarchive/bsdtar could be cool to be included on engrampa too. in my opinion is the best alternative option for RAR archives :)

[sc0w]

on debian testing, I have installed the package unar, I dont have the package unrar.

but engrampa show me the error: No se pudo crear el archivador El tipo del archivador no es compatible.

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=748104

the same rar file is opened perfectly with file-roller

[infirit]

@sc0w works fine for me on gentoo with unar 1.6. And please don't put unrelated issues on a feature request, instead open a new issue.

[mandian]

Hi,
I have the same problem. I'm trying to package MATE 1.18.x for OpenMandriva and I discovered engrampa had problems with tar* archives. I guess it's because OpenMandriva uses bsdtar as default tar but bsdtar has a different syntax with respect to tar and it has a different output too (even if the tar* archive are compatible) so engrampa is currently unusable. Have you some plan to add support for bsdtar to engrampa?

[stokito]

libarchive is written in C++ so it may be a problem to integrate with C written engrampa

[ht990332]

libarchive is written in C. It should be easy enough to use it in C projects.

[mandian]

Hi,

is there some good news about it?
file-roller has supported libarchive since version 3.5 so I hope it is possible to support it in engrampa too

https://github.com/GNOME/file-roller/blob/master/src/fr-archive-libarchive.c