On zo, 2013-06-23 at 15:33 -0700, Junio C Hamano wrote:
> Dennis Kaarsemaker <den...@kaarsemaker.net> writes:
> > On zo, 2013-06-23 at 14:22 -0700, Junio C Hamano wrote:
> >> Dennis Kaarsemaker <den...@kaarsemaker.net> writes:
> >> 
> >> > Equality for
> >> > wildcards is allowed and tested for, so do we really want to 'outlaw'
> >> > equality of non-wildcard refspecs?
> >> 
> >> I am not sure what you mean by "equality for wildcards is allowed".
> >> Do you mean this pair of remote definition is sane and not warned?
> >> 
> >>    [remote "one"]
> >>            fetch = refs/heads/*:refs/remotes/mixed/*
> >> 
> >>    [remote "two"]
> >>            fetch = refs/heads/*:refs/remotes/mixed/*
> >
> > I personally don't consider them very sane and didn't originally support
> > that. But this behavior is tested for in t5505-remote.sh test 27, which
> > started failing until I stopped warning for equal refspecs. This support
> > for "alt remotes" in prune was added by c175a7ad in 2008. The commit
> > message for that commit give a plausible reason for using them.
> I actually do not read it that way.  What it wanted to do primarily
> was to avoid pruning "refs/remotes/alt/*" based on what it observed
> at the remote named "alt", when the refs fetched from that remote is
> set to update "refs/remotes/origin/*".
> The example in the log message is a special case where two
> physically different remotes are actually copies of a single logical
> repository, so in that narrow use case, it may be OK, but it is an
> unusual thing to do and we should "warn" about it, I think.

Apart from the exactly matching refspecs, does git in any other way
treat this as a special case?

> In any case, I've been assuming in this discussion "allow" is to
> silently accept, and overlaps are "warned" but not "rejected".  So
> if you meant by 'outlaw' to die and refuse to run, that is not what
> I meant.

Well, 1/3 is a warning on add, 3/3 is a warning and refusing to prune.
Should 3/3 do something else instead? Perhaps prompt for confirmation or
require some sort of --force?

Dennis Kaarsemaker

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