On 11/16/05, Greg Hudson <ghudson@mit.edu> wrote:
> On Wed, 2005-11-16 at 17:02 -0800, Jim Blandy wrote:
> > We must be disconnected. How can it possibly not be well-defined to
> > compose deltas?
>
> Because our deltas aren't expressed wholly in terms of the previously
> existing contents of the tree. If we have:
>
> r1: add foo (no history)
> r2: delete foo
> r3: add foo (copy history foo@1)
> r4: add bar (copy history foo@1)
>
> Then what is the composition of r1-r4?
By 'r1-r4' you mean all four revisions, right?
If 'copy with history' could refer to a file added in the same delta,
the composition would be:
- add foo (no history)
- add bar (copied from our new foo)
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Received on Thu Nov 17 07:56:37 2005