Re: Regarding "git log" on "git series" metadata

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On Sat, Nov 05, 2016 at 01:45:27PM +0100, Christian Couder wrote:
> And with what Peff says above it looks like we will need ways
> configure and tweak commit reachability with gitlink/gitref anyway. So
> the point of gitref compared to gitlink would be that they just have a
> different reachability by default. But couldn't that be replaced by a
> default rule saying that when a gitlink is reached "this way or that
> way" then the commit reachability should be enforced, and otherwise it
> should not be?

Any version of git unaware of that rule, though, would consider objects
only reachable by gitlink as unreachable and delete them, causing data
loss.  Likewise for a server not aware of that rule.  And a server
unaware of that rule would not supply those objects to a client pulling
such a branch.

So I don't think "gitlink defined as reachable" quite works, unless we
make some other format-incompatible change that forces clients and
servers touching that gitlink to know about that reachability rule.  (In
the absence of a hack such as making the same commit a parent.)



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