Hello everybody, I was trying to write a simple program that compress a user-specified folder, but I don't know how to create the archive. I gave a look at KArchive class and its subclasses, but still it's not clear.
As for the type of compression, I'd like to use either tar.gz, tar.bz2 or zip.

Thanks

If you want to write a front end to the shell command, the command is

Code: Select all

/bin/tar jcf archivename.tar.bz2 directoryname

The letter "j" sends it all through bz2 compression.
Alternatively, "z" would be the gz compression.

It will do the job recursively for you through the subdir-structure.
I believe you'd use full paths for archive and directory to be compressed.


I do not know whether there is a letter for zip compression.
There is always another syntax for archiving/compression with piping (key | ) where one command pipes its output into the next: in that case the commands being tar and zip, including there options/flags.
But you would have to figure that one out...


Have fun.

Or enter these URLs into konqueror for more information:

man:tar
man:zip
man:7za

Ok, thank you very much for the tips! Can you please tell me how to execute commands in my program? Do I have to use something like system("command"), or is there another way to do that?

I haven't used this API myself yet, but from the documentation my guess would be like this:

Code: Select all

KZip archive( "filename.zip" );
archive.open( QIODevice::WriteOnly );
archive.addLocalDirectory( "directoryname", "how-it-should-be-named-in-the-zip" );
archive.close();


Cheers,
_

Yeah, I guessed the same thing and tried it in tar.gz (adding mimetype to archive constructor), but then my program "freezed"...
It wasn't freeze, my program was compressing a big size folder because of an error in path settings...
Now it works with KArchive API, thanks everyone for your quick answers!