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Re: other weirdness with rpm and the python bindings



On Sun, 2002-03-24 at 17:27, Jeff Johnson wrote:
> On Sun, Mar 24, 2002 at 05:06:52PM -0500, seth vidal wrote:
> > 
> > This seems incredibly inefficient to me.
> 
> Yup.
> 
> > 
> > Can anyone explain this to me?
> 
> rpm was written for an installer, not a dependency solver.
> 

Right, I'm trying to (re)write something that does dependency
resolution. It would aid my efforts and speed up the updating/dependency
resolving if I did not have to tear down and rebuild the transaction set
everytime, if, instead, I could just update the pkg state in the
transaction set.

Is this a major change? It seems like it would just be comparing to see
if the pkg header was already in the ts and changing its state or,
alternatively, creating a ts.add(hdr,data,'r') which remove that header
from the transaction at all, so I could update the transaction set
myself.

ie:
 - if I find something that needs to be installed instead of being
available. I ts.add(hdr, data,'r') then I ts.add(hdr, data, 'i')

It would also be handy if I could query the transaction set in some way
- to see whats in there.

ie: 

tsactions = ts.query()

for action in tsactions:
  print "whatever the hell you want to hand back from ts.query".......

you get the idea.

just so I can check and report back to the user what is supposed to
happen in the transaction set BEFORE doing a test run or anything.

-sv



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