[PATCH 0/6 v3] Make git log --graph looks better with -p and other diff options

Thanks to Jeff, make --graph work well with --summary. And change the call parameters of output_prefix function, remove the unused FILE* and replace it with a diff_options.

Bo Yang (6):
  Add a prefix output callback to diff output.
  Output the graph columns at the end of the commit message.
  diff.c: Output the text graph padding before each diff line.
  Emit a whole line once a time.
  Register a callback for graph output.
  Make --color-words work well with --graph.

 color.c    |   21 +++-
 color.h    |    3 +-
 diff.c     |  379 +++++++++++++++++++++++++++++++++++++++++++++---------------
 diff.h     |    5 +
 graph.c    |   19 +++
 log-tree.c |    6 +
 6 files changed, 331 insertions(+), 102 deletions(-)