Duy Nguyen <pclo...@gmail.com> writes:

> If we do that, we need to do the same in tree_entry_interesting(). In
> other words, pathspec learns the new glob syntax. It's fine for an
> experimental flag like USE_WILDMATCH. But after fnmatch is replaced by
> wildmatch unconditionally (thus USE_WILDMATCH becomes obsolete), then
> what? Should people who expects new syntax with USE_WILDMATCH continue
> to have new syntax? How does a user know which syntax may be used in
> his friend's "git" binary?

Good point.

> On a related subject, I've been meaning to write a mail about the
> other use of patterns in git (e.g. in git-branch, git-tag,
> git-apply...) but never got around to. Some use without FNM_PATHNAME,
> some do and the document does not go into details about the
> differences. We might want to unify the syntax there too. It'll
> probably break backward compatibility so we can do the same when we
> switch pathspec syntax.

Right now, I think for-each-ref is the only one with FNM_PATHNAME.
With the experimental USE_WILDMATCH, "for-each-ref refs/**/master"
will give us what is naturally expected.  With a working wildmatch,
I think it probably makes sense to globally enable FNM_PATHNAME;
it would probably be nice if we could do so at Git 2.0 version bump
boundary, but I suspect we are not ready yet (as you pointed out,
there are still codepaths that need to be adjusted).

> The only problem I see is, without the version string, there's no way
> to know if "**" is supported. Old git versions will happily take "**"
> and interpret as "*". When you advise someone to use "**" you might
> need to add "check if you have this version of git". This problem does
> not exist with pathspec magic like :(glob)

OK, so what do we want to do when we do the real "USE_WILDMATCH"
that is not the current experimental curiosity?  Use ":(wild)" or
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