On Tue, Aug 27, 2013 at 11:25 AM, Nicolas Pitre <n...@fluxnic.net> wrote:
> This goes as follows:
> - Tree reference: either variable length encoding of the index
> into the SHA1 table or the literal SHA1 prefixed by 0 (see
> - Parent count: variable length encoding of the number of parents.
> This is normally going to occupy a single byte but doesn't have to.
> - List of parent references: a list of add_sha1_ref() encoded references,
> or nothing if the parent count was zero.
With .pack v3 it's impossible to create delta cycles (3b910d0 add
tests for indexing packs with delta cycles - 2013-08-23) but it is
possible with .pack v4 (and therefore at least index-pack needs to
detect and reject them), correct? Some malicious user can create
commit A with parent ref 1, then make the SHA-1 table so that ref 1 is
A. The same with the new tree representation.
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