Re: [PATCH] builtin/tag.c: add --trailer arg

[Junio C Hamano <gitster@pobox.com>]

John Passaro <john.a.passaro@gmail.com> writes:

> It seems to me the duplication goes further than that.
> Ideally I would love to have a unified approach to the problem of
> combining `-m`, `-F`, `-e`, and `--trailer` generally. That would change
> one existing nit I have in git-tag, which is that with `-m`, `-F`,
> or `-fae` to replace an existing tag, it doesn't add commentary guidance
> the way git-commit does.
>
> That's a bigger change than I'm comfortable taking on and it's
> arguably beyond the scope of this ticket. Question here is - first,
> is such a consolidation possible in the future, and second, if it were,
> would this refactor (dedicated function for augmenting a strbuf/file
> with trailers) still be valuable?

There is no doubt it would be, if it were ;-)

At least, it should be straight-forward to turn the copying and
pasting in this patch to a proper refactoring into a common helper
function as Patrick suggested and add it to the trailer API.  It
should become a separate, preparatory clean-up patch on a two-patch
series, upon which the main "now we have a reusable piece split out
of 'git commit --trailer' implementation, let's use it to teach the
same '--trailer' to 'git tag'" patch can come.

Thanks.