On Mon, May 18, 2009 at 11:11:37PM +0200, Thomas Rast wrote:
> Jeff King wrote:
> > It seems like you should be able to script around for-each-ref and
> > remain efficient, but I don't think there is a way to convince it to
> > dereference tags.
>
> Actually there's the * operator. For example
>
> git$ git for-each-ref --format="%(objecttype) %(*objecttype)" refs/tags/v1.6.0
> tag commit
>
> Does that solve the problem at hand?
Oh, right, thanks. I missed that when reading the manual (I was looking
for "dereference" or "peel", but those words are never used). So you can
do:
git for-each-ref --format='%(refname)
Tag: %(taggername) %(taggeremail) %(taggerdate)
Commit: %(*authorname) %(*authoremail) %(*authordate)
' refs/tags
to show both.
That could go in an alias, though it isn't exactly what the original
poster asked for. Besides not being a one-line format, it has refs/tags/
cruft at the beginning of each ref. I think what the OP asked for
exactly is:
eval "`git for-each-ref --shell --format='
r=%(refname)
d=%(taggerdate)
T=${r#refs/tags/}
echo "$T $d"
' refs/tags`"
Though as Linus said, I think the actual commit date is also interesting
(and you could expand that shell snippet to show it instead, in addition
to, or whatever).
And before anyone says anything, yes, I think building a shell script
and eval'ing it is a little ugly compared to a "--show-date" option to
"git tag". If this is something a lot of people want to do, it wouldn't
be that hard an option to add (in fact, it would be really nice to unify
the show-ref and pretty=format substitutions, and extend them into "git
tag --format='%r %td'" or whatever).
-Peff
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