On Tue, Mar 20, 2018 at 4:43 PM, Luke Robison <robi...@arlut.utexas.edu> wrote: > Is there any documentation of the contents of the binary delta datain a > packfile, and how to interpret them? I found > https://github.com/git/git/blob/master/Documentation/technical/pack-format.txt > documenting the packfile itself, but the "compressed delta data" seems > largely undocumented. The source code of > https://github.com/git/git/blob/master/diff-delta.c is pretty dense.
The output is consumed by patch_delta() in patch-delta.c if I'm not mistaken. This function is less than 100 lines, probably much easier to see the delta format. > This > is what I've got so for: > > +-------------+ > | Varint src_size > | Varint trg_size > | 1-byte inscnt > | N-bytes up to 16 bytes of trg_buf > | > | A series of Operations > | > +------------- > > > Any details on how to interpret the opcodes would be greatly appreciated. > > Thanks, > Luke > -- Duy
