[pca] operands issue + little feature request proposal

[dpecka]

Okay, thank you very much for great explanation. The only operand which
i was constantly using was *total ;) (but of course not for installing).

thanks for pca, it's pretty extraordinary tool.

regards, daniel

On Wed, 2011-04-06 at 14:51 +0200, Martin Paul wrote:
> Hi Daniel,
> 
> Sorry for the delay - I took advantage of the nice wheather and spent a few days 
> hiking in Austria's Waldviertel. Very nice, BTW :)
> 
> > i have found, that allrs list is bigger then default, which should be
> > just *all (if i understand correctly to --man), so i was little bit
> > shocked and suspecting if package selection algorithm is correct ..
> 
> The default operand when running pca without an argument is "missing". This 
> group consists of all patches which apply to a system and which are not 
> installed in their most current revision.
> 
> The "all" group on the other hand includes all patches which apply to a system, 
> even if they are already installed. This is great for documentation: Keep a list 
> of "pca -l all" from all of your systems and use grep to find out if a certain 
> patch is installed on all of them (to which it applies). You wouldn't want to 
> install "all" on a system, therefore.
> 
> The r/s/rs postfix is used to reduce any of the groups (missing, all, etc.) to 
> those carrying the Recommended and/or Security flag. I think you just 
> misunderstood the difference between the default (missing) and all. The sample 
> outputs you included look fine.
> 
> > i'm also suggesting with this little proposal: please kick out patch
> > unzipping phase while -I ..
> 
> It's there for a reason: PCA needs to read the patch README and the patchinfo 
> file even when only pretending to install a patch, both to determine whether a 
> reboot is required (this information is missing from the xref file, 
> unfortunately) and to get the list of included files for the "--safe" option. 
> Plus, it also tests whether the patch archive can be expanded successfully. Even 
> though this could be done with the "-t" option to unzip, this isn't really much 
> faster than extracting the archive to /tmp, and the is no "test" option which 
> could be used for tar archives (which PCA still supports for old patches).
> 
> So theoretically I could work around the extraction when using "--pretend", but 
> it needs changes in more than one place, and is probably not worth the effort.
> 
> Martin.
> 
> > regards and thanks martin for pca,
> > ave daniel
> > 
> > 
> 
> 
-- 
Best Regards / S Pozdravem

Daniel Pecka
--------------------------------------------------
SunOS Specialist, UNIX Administrator

www.techniservit.cz

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