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Re: RPM roadmapping



On Fri, 27 Jul 2007, Dimi Paun wrote:

On Fri, 2007-07-27 at 15:40 +0300, Panu Matilainen wrote:
Or the other way around: what you always
wished rpm would do for you? What always annoyed you out of your mind?

 * Version control the meta-information
   This can't be efficiently done outside RPM, and it would provide
   an administrator with an invaluable tool (say a malfunction starts
   at about 4am):
     - what packages changes are different from yesterday?
     - what files have changed for package foo between version V and W?
     - what's the history of package foo on this system?
   Not very difficult, but quite useful. Every time something breaks
   on a system (usually via an automatic yum update) I would kill
   for the ability to run such queries.

Ah, something fresh for a change :) Most of the things that have come up in this thread, well lets just say I'd been very surprised if they hadn't come up.

 * Ability to save a pristine copy for the configuration files
   This would make it a _lot_ simpler to integrate the new .rpmnew
   files, in a lot of cases being as simple as:
       diff foo.pristine foo | patch -o foo foo.rpmnew
   At the very least to provide some sort of mechanism that would
   permit an external trigger to so easily and efficiently.

This maybe already implemented (never checked in depth the transaction
triggers), but a mechanism for external tools to hook into the
transactions would be great. More generally, the external triggers must
be given enough information about the current transaction to be able to
know the delta that the transaction introduces without having to scan
the entire state of the system. As a litmus test, you should be able to
implement the version control idea mentioned above via this mechanism
easily and efficiently.

I've been thinking of somewhat different use case, but one of my plans is to indeed make information about the current transaction available to (lua-)scripts. I already have written beginnings of lua-rpm bindings, once that's in usable shape and integrated, scripts could look at current transaction member packages, their files etc and do decisions based on that info.

	- Panu -


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