Ævar Arnfjörð Bjarmason <ava...@gmail.com> writes:

> On Sat, Sep 1, 2012 at 6:12 PM, Andreas Schwab <sch...@linux-m68k.org> wrote:
>> Ævar Arnfjörð Bjarmason <ava...@gmail.com> writes:
>>> I don't get what you mean, what committer info?
>> GIT_COMMITTER_{NAME,EMAIL}.  A tagger isn't really an author.
> Ah, am I the only one that finds that a bit counterintuitive to the
> point of wanting to submit a patch to change it?
> If you've created a tag you're the *author* of that tag, the
> author/committer distinction for commit objects is there for e.g.
> rebases and applying commits via e.g. git-am.
> We don't have a similar facility for tags (you have to push them
> around directly), but we *could* and in that case having a
> Tag-Committer as well well as a Tagger would make sense.
> Junio, what do you think?

Unless your name is Linus Torvalds and it is early in year 2005, I
wouldn't even think about it.

When we introduced "tagger name can be overriden with environment",
we could have added GIT_TAGGER_{NAME,EMAIL}, but we didn't.  Given
that tagging happens far far less often than committing, I think it
was a sensible thing to do.

It is a perfectly normal thing in Git for you to commit a patch
authored by other people on behalf of them (and that is why AUTHOR
exists as a separate name from the committer), but you still stand
behind the commits you create by setting COMMITTER of them to you.
The fact that it was _you_ who create the tag has similar weight
that you have your name as the committer in commit objects, so in
that sense, I think the semantics used for the name in tag is far
closer to COMMITTER than AUTHOR.

I guess I wouldn't mind too much if "git tag" learned a "--tagger"
option, and honored GIT_TAGGER_{NAME,EMAIL} if set (and otherwise,
fall back to GIT_COMMITTER_{NAME,EMAIL}), but I do not know if it is
worth it.  How often would you want to _lie_ about your identity
when you are tagging, and what legitimate reason do you have for
doing so?

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