general kio slave for reading embedded files

[Jos van den Oever]

2006/12/16, John Tapsell <johnflux at gmail.com>:
> I don't know if it's worth worrying about, but this could fight with
> the filesystem.
>
> Some filesystems (reiserfs, any others?)  let you go into  a.zip  as a
> directory as well as a file.
Do you have some urls to back this up? I've not heard of it.
And how many file types are supported (email attachments, rpm, deb)?
How deep inside files can they look? What is the memory usage?

The current kioslave implementation is very efficient. It is stream
based and has a constant memory footprint which is independent of the
file opened. For performance reasons there is a cache for filenames in
the kioslave, but this should never grow very large.

Cheers,
Jos

>
> On 16/12/06, Jos van den Oever <jvdoever at gmail.com> wrote:
> > Hi all,
> >
> > As you probably know, Strigi can index arbitrarily nested files. To
> > open these files, a special kio_slave is included in strigiapplet.
> > This kioslave can open files like this:
> >
> > /home/kde/a.zip/b.tar.gz/x.rpm/y.deb/README
> >
> > I think this kioslave is of general interest for KDE. At the moment
> > there is no possibility to open files inside other files without
> > creating temporary files. Also, it is not possible to open nested
> > files within nested files in any kioslave. In addition this kioslave
> > provides common access for a larger number of archive formats then is
> > currently available. Like tar:// and zip://, the current KDE3 version
> > of the kioslaves provides only read access.
> >
> > In other operating systems, like e.g. Windows XP it is rather natural
> > to browse inside archives.
> >
> > I would like to port the kioslave that comes with Strigi to KDE4 and
> > place it in kdelibs/kioslave/ or kdebase/runtime/kioslave/.
> > The current name of the kioslave is jstream:// which is not good.
> > Something like archive:// might be better.
> >
> > The kioslave requires the library libstreams that is part of Strigi.
> > To compile this part of strigi only libz and libbz2 are required.
> >
> > Cheers,
> > Jos
> >
>