[pca] Expected behavior when specifying a patch when required packages are not installed.

[Jeff Tejnecky]

Thanks for the info Martin.  Just so I make sure I have it straight, if I
specify a specific patch to install, not a specific revision of a patch,
then PCA assumes I know the package dependencies and will take action to
resolve any other patch dependencies, correct?

On Thu, Mar 19, 2009 at 4:25 AM, Martin Paul <martin at par.univie.ac.at>wrote:

> Jeff,
>
>  We apply subsets of patches to resolve specific issues.  Something I
>> noticed
>> is if I run, as an example, "pca -i 122911", which is the Apache 1.3
>> patch,
>> on a server that doesn't have Apache installed, it will still download the
>> patch and try to apply it, at which time patchadd will fail.
>>
>
> If an explicit patch number is given to pca, it will assume that you know
> what you do and won't check whether this patch actually applies. The idea is
> that you often want to list a patch (or check it's dependencies) even if it
> doesn't apply to the system pca is running on. There's currently no command
> line option to modify this behaviour.
>
> I would use a simple wrapper like:
>
> #!/bin/sh
>
> applies=`pca -l missing --format '%p'`
> for i in $*
> do
>  for j in $applies
>  do
>    test $i = $j && echo "pca -i $i"
>  done
> done
>
> It goes through the list of patches you provide on the command line and
> checks each patch against a list of patches which are missing on the system,
> created by pca. Only patches which apply to the system will be installed.
>
> Hope that helps,
>
> Martin.
>
>
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