[PATCH 0/2] textconv support for "log -S"

[Jeff King <peff@peff.net>]

On Sun, Oct 28, 2012 at 08:01:04AM -0400, Jeff King wrote:

> -G operates on the munged data; you can see it feed the munged data to
> xdiff in diff_grep. But the optimization for handling added and removed
> files accidentally fed the wrong pointer. Fixing that is a no-brainer,
> since the optimization is inconsistent with the regular code path.
> 
> -S, however, predates the invention of textconv and has never used it.
> It is a little less clear that textconv is the right thing here, because
> it is not about grepping the diff, but about counting occurrences of the
> string inside the file content. I tend to think that doing so on the
> textconv'd data would be what people generally want, but it is a
> behavior change.

I prepared the earlier bugfix for "-G" for maint. Modifying "-S" would
be a separate feature topic, and would look like this (I built it on top
of the bugfix patch, since the tests are a follow-on).

  [1/2]: pickaxe: hoist empty needle check
  [2/2]: pickaxe: use textconv for -S counting

-Peff