[CentOS] Trying to find packages that depend on package X.

Fri May 26 22:01:26 UTC 2006
Rodrigo Barbosa <rodrigob at suespammers.org>

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On Fri, May 26, 2006 at 01:22:42PM -0400, William L. Maltby wrote:
> On Fri, 2006-05-26 at 14:06 -0300, Rodrigo Barbosa wrote:
> <snip>
> 
> > rpm -q --provides PACKAGE_NAME | sed 's/^/"/;s/\([^[:space:]]\) *
> > $/\1"/;/=/{h;s/ =.*$/"/;G}' | xargs rpm -q --whatrequires | grep -v -E
> > '^no package'
> 
> Still needs some work, Ran it here and only got 38 packages, s/b 207
> here. Timing on 1st run was
> 
>    real    0m0.701s
>    user    0m0.186s
>    sys     0m0.019s
> 
> By the time we get 207 pkgs, I suspect a little overhead penalty.

I didn't change it to improve performance, for to get all the
results correctly (previous one was missing some of them).

I really don't think there is any faster way to do it, since rpm
accessing its db3 files is what costs so much on this. 10 or 100
dependencies should make little difference.

- -- 
Rodrigo Barbosa <rodrigob at suespammers.org>
"Quid quid Latine dictum sit, altum viditur"
"Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)

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