Question from a new user...

["Moshe Simon" <simon redbend com>]

Hello All,

I'm fairly new in RPM. I am a developer and I'm trying to customize the installation process. 
I am reading some specs but I still have some unknown answers to:
1) Can I interrupt the installation process (maybee via some code) ? e.g. Does RPM engine can "give" me the file which is going to be installed (so I can for example modify the file content) and then let RPM install it (the modified file) in its way.
2) I have been reading that upgrading is actually (uninstalling old version)+(installing the new version). Do I have any control on the uninstalling process or even bypass the uninstalling process?

I will be VERY happy even if you write down some links to any docs related to my questions.

!! THANKS a LOT !!

=====================
Moshe Simon R&D Team
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