On 6/3/06, Junio C Hamano <junkio@xxxxxxx> wrote:
Paul Mackerras <paulus@xxxxxxxxx> writes:
> I just pushed out an update to the "new" branch of the gitk.git
> repository, which adds a feature that I have often wished for: it will
> now show the nearest preceding and following tags when you select a
> commit. This is very useful if you need to identify which release was
> the first to incorporate a particular patch, or if you need to know
> which release a patch might have been based on.
Another thing that would equally be useful is to show which
branch a particular commit is on, so for example I can pick one
commit while doing "gitk next" to view the next branch and see
which topic it belongs to, and "gitk this-topic" to see which
commits on that topic, if any, are not yet in the "next" branch.
If I have understood correctly the patch runs a 'git rev-list --all
--topo-order --parents'
and then does a tree walking.
I am wandering if there exist any native git way to found the previous tag.
As example given a selected revision with id <sha> is it possible to
do something like this to fond the ancestor?
1) get the tag list with git-peek-remote or something similar if tags
are not already loaded
2) given the tagList vector with n elements run
git-rev-list --topo-order <sha> ^tagList[0] ^tagList[1] ....
^tagList[n-1]
3) take the last sha spit out by git-rev-list, be it <lastSha>.
4) Previous nearest tag is the parent of lastSha
I've missed something?
Marco
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