How to programmatically list tags for a revision?

[Matt Mackall]

On Mon, 2012-03-19 at 19:38 +0000, Jason R. Coombs wrote:
> Thanks. That's helpful. I've started implementing the feature using hg tags, but I've run into another hitch.
> 
> When one runs hg id with --rev, one can specify the revision using the
> local incremental id or a partial hash or a full hash.

Or bookmark or tag or branch or revset, etc.

>  Thus, to down select the appropriate tags, I believe I need to
> re-implement the revision matching algorithm.

???

I guess you want to find tags that match not a particular known
revision, but an arbitrary revision specifier. Seems like you should:

1) resolve the identifier with hg id -nr <some specifier>
2) find the corresponding tags with hg tags

Though that does suggest it might be useful to allow 'hg tags' to take
revset.

-- 
Mathematics is the supreme nostalgia of our time.