Re: [PATCH 13/13] Build in merge

> > +	if (new_head && show_diffstat) {
> > +		struct diff_options opts;
> > +		diff_setup(&opts);
> > +		opts.output_format |=
> > +			DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
> > +		opts.detect_rename = DIFF_DETECT_RENAME;
> > +		if (diff_use_color_default > 0)
> > +			DIFF_OPT_SET(&opts, COLOR_DIFF);
> 
> Ah, I missed that. You should call diff_setup_done(), to finish diff_setup()
> and have a recursive diffstat.
> 
> For example:
> 
> $ git checkout -b test c0f5c69
> $ git merge 2dce956
> Updating c0f5c69..2dce956
> Fast forward
>  help.c |   22 ++++++++++++++--------
>  1 files changed, 14 insertions(+), 8 deletions(-)
> 
> is wrong. Correct diffstat is:
> 
> $ git diff --stat c0f5c69..2dce956
>  Documentation/gitcli.txt        |   37 +++++++++++++++++++++++++++++++++----
>  Documentation/gittutorial-2.txt |   10 +++++-----
>  help.c                          |   22 ++++++++++++++--------
>  t/test-lib.sh                   |    2 +-
>  4 files changed, 53 insertions(+), 18 deletions(-)

> > +	git_config(git_merge_config, NULL);
> > +
> > +	/* for color.diff and diff.color */
> > +	git_config(git_diff_ui_config, NULL);
> 
> Also, what about doing "return git_diff_ui_config(k, v, cb)" at the end of
> git_merge_config() instead, to avoid parsing config files twice.