[pacman-dev] more efficient use of db_cache needed

[Aaron Griffin]

On 2/28/07, Nagy Gabor <ngaba at petra.hos.u-szeged.hu> wrote:
> Hi!
> It's common practise that you load pkgcache with INFRQ_DEPENDS or
> similar which is slow, because you must read the whole db directory.
> Instead it would be more optimal, if you'd load db_cache with
> INFRQ_NONE almost always (in case of thransactions where only few
> packages are affected), because that is very fast (name and version are
> computed from the directory name, so you need to read only the root
> directory of the repo). And if you find the required package by name,
> you can read the required info. So first _alpm_db_scan with INFRQ_NONE
> then _alpm_db_read

We already went over this before.  In the future, all package access
will be done with the accessor functions, loading the individual files
on demand.