Re: Commit/merge messages for binary files

[Jeff King <peff@peff.net>]

On Sat, Feb 19, 2011 at 02:06:01AM -0500, Jeff King wrote:

> Now that seems wrong. What about doing another diff:
> 
>   $ git show --oneline --stat --summary
>   43961bc two
>    foo.rand |  Bin 4096 -> 4096 bytes
>    1 files changed, 0 insertions(+), 0 deletions(-)
> 
> That's right. Now let's turn on break detection:
> 
>   $ git show --oneline --stat --summary -B
>   43961bc two
>    foo.rand |   34 +++++++++++++++-------------------
>    1 files changed, 15 insertions(+), 19 deletions(-)
>    rewrite foo.rand (100%)
> 
> Broken again. So I guess we have some problem with making sure we treat
> broken filepairs as binary.

Yep, builtin_diffstat just didn't handle that case. Two patch series to
follow:

  [1/2]: diff: handle diffstat of rewritten binary files
  [2/2]: diff: don't retrieve binary blobs for diffstat

The first one fixes the bug, and the second is a convenient optimization
I noticed while there.

-Peff