[pacman-dev] pacman cold caches performance, too much stat()ing

[Allan McRae]

Dimitrios Apostolou wrote:
> On Fri, 11 Dec 2009, Nagy Gabor wrote:
>> depends files are read in order to ensure that the upgraded package
>> won't break any "old" dependencies.
>>
>> Example: local foo requires bar=2.0 (which is installed)
>> Then "pacman -S bar" is not allowed (if bar in sync has different
>> version).
> 
> I just noticed that local depends are read even when installing a new 
> package (not upgrading an old one). Why is this for?
> 

How about this example:

pacman -S foo, foo replaces=bar and provides=bar, installed package baz 
depends on foo>=2.0.

This should fail as bar only provides foo and so it is unknown whether 
the foo>=2.0 dependency for baz is solved.

Allan