Mailinglist Archive: zypp-devel (26 mails)

["Ricardo Cruz" <rpmcruz@xxxxxxxxxxxxxxxxxxx>]

Quoting "Michael Andres" <ma@xxxxxxx>:
> On Wednesday 08 September 2010 16:01:36 Ricardo Cruz wrote:
> >   What string should I pass to _zypp.initializeTarget() ?
>
> The root of your system. Usually '/', unless you use --root.

 That was one of my first tries, but it's of no use. pool.size() still
returns 0, and I know I have packages installed in my system. :)

 Anyhow, digging up some of mountain zypp, it seems I
may have to also issue a: zyppPtr->target()->load();

 But I still have to give it a try.

> >   I have tried to dig up yast2 code on this, but couldn't
>
> Yast is too confuising ;). Try zypper or some of the tests/examples in the
> libzypp git.

 I've looked at libzypp's test directory, and they seemed to make use
of temporary databases.

> Beware, the examples are pretty outdated but at least list_resolvables works.

 There aren't many of them either.

rick2@andor:~/Documentos/yast/libzypp/examples$ ls
CMakeLists.txt  COW_debug.cc  EditionCompare.cc  README  whatprovides.cc

> (patches/suggestions are wellcome ;) I added an onSystemByUser call as you
> asked for some 'p.installedBySolver' in the previous mail.
> Since libzypp-7.5.0:
> +       /** Whether this is known to be installed on behalf of a user request.
> +        * \note This is a hint guessed by evaluating an available install 
> history.
> +	 * Returns \c false for non-system (uninstalled) solvables, or if  
> no history
> +        * is available.
> +        */
> +       bool onSystemByUser() const;

 Very nice, thanks. Please just add there a comment on the performance
of the function, otherwise people may unnecessarily abuse it. I assume it's
O(N): you iterate through the logs every time the function is called.

Much appreciated,
 Ricardo


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