determine if one commit is an ancestor of another

Is there any builtin to do this?  I'm doing it in a perl script now by parsing
git log --pretty=raw, but it's pretty slow for a big repository.

    --larry

Hi,

On Thu, 9 Jul 2009, Larry D'Anna wrote:

Is there any builtin to do this?  I'm doing it in a perl script now by 
parsing git log --pretty=raw, but it's pretty slow for a big repository.

test $ancestor = $(git merge-base $ancestor $descendant)

Ciao,
Dscho