Skip steps in uninstall scripts if just an update

[Jos Vos]

On Fri, Jun 17, 2011 at 02:15:46PM -0400, Daniel Neuberger wrote:

> Is there any way to tell in your uninstall scripts whether the RPM is
> truly being uninstalled or just updated?

When the RPM is being updated, $1 of the script is 1.
When the RPM is really uninstalled, $1 of the script is 0.

(This is the simplified explanation, when more instances of a package
can be installed, like "kernel", the values are different...)

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--    Jos Vos <jos at xos.nl>
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