Re: [PATCH 8/9] for-each-ref: add option to fully dereference tags

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

Victoria Dye <vdye@github.com> writes:

> I think `^{}fieldname` would be a good candidate, but it's *extremely*

Gaah.  Why?  fieldname^{} I may understand, but in the prefix form?

In any case, has anybody considered that we may be better off to
declare that "*field" peeling a tag only once is a longstanding bug?

IOW, can we not add "fully peel" command line option or a new syntax
and instead just "fix" the bug to fully peel when "*field" is asked
for?

An application that cares about handling a chain of annotatetd tags
would want to be able to say "this is the outermost tag's
information; one level down, the tag was signed by this person;
another level down, the tag was signed by this person, etc."  which
would mean either

 * we have a syntax that shows the information from all levels
   (e.g., "**taggername" may say "Victoria\nPatrick\nGitster")

 * we have a syntax that allows to specify how many levels to peel,
   (e.g., "*0*taggername" may be the same as "taggername",
   "*1*taggername" may be the same as "*taggername") plus some
   programming construct like variables and loops.

but the repertoire being proposed that consists only of "peel only
once" and "peel all levels" is way too insufficient.

Note that I do not advocate for allowing inspection of each levels
separately.  Quite the contrary.  I would say that --format=<>
placeholder should not be a programming language to satisify such a
niche need.  And my conclusion from that stance is "peel once" plus
"peel all" are already one level too many, and "peel once" was a
very flawed implementation from day one, when 9f613ddd (Add
git-for-each-ref: helper for language bindings, 2006-09-15)
introduced it.