Jeff King wrote:
> On Fri, Sep 02, 2016 at 03:06:12PM -0700, Jonathan Tan wrote:

>                                  But combining hideRefs with
> allowTipSHA1InWant could trigger this case.


> I'd be more interested in the pain of this transition if there was a
> concrete use case for "hide literally all refs, but still allow
> fetches". Is that a thing that people do?

Sure, it is a thing that people do.  For example I've seen replication
systems that learn what SHA-1s to fetch out-of-band and then use this
approach to avoid the overhead of a long ref advertisement.

However, that is not my motivation.  My motivation is being able to
extend the protocol in the future.  The capabilities line has been
important for that historically.

Do you have any objection to the server gaining support for this
guarded by a configuration option?  Then when the time comes to
consider flipping the default we can use real-world statistics about
what git client versions people use to make an informed decision.


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