Re: most annoying thing in git-push

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"Alexey I. Froloff" <raorn@xxxxxxxxxxxx> writes:

> Is is possible to add such functionality to git-push, so it will
> push tags that point at objects that were uploaded to the remote
> repository?

I think it is doable, because the protocol is for the receiver to first
advertise all its existing refs, which means that the sender can learn
what is missing by first enumerating the tags it has, subtracting what the
receiver has, and then computing the ones that are missing from the
receiver and are reachable from the commits it is pushing, before the
sender has to respond which refs it wants to update with what object and
then send the packfile to transfer necessary objects.  You do not need to
change the protocol, nor what the receiving side does, to implement it.
You only need to update what the push side does.

It however is entirely a different matter if it is a sensible thing to do.

Often, a fetch is made from a public distribution point, which by
definition has only branches and tags that are meant for public
consumption.  It makes sense to auto-follow tags by default.

On the other hand, a push is almost always made from a private working
repository to a public distribution point, in order to update the latter
with only refs and objects meant for public consumption.  A developer
working in such a private working repository will use tags that are not
meant for public consumption while developing, and pushing all tags that
are reachable from the commits that are being pushed out to the public
distribution point is not necessarily desirable, as it will push out many
tags that are only private to the working repository.

It certainly is not a sensible default behaviour, even though it might be
handy as an option for special cases.
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