range-diff: publish default creation factor

The range-diff back-end allows its heuristic to be tweaked via the
"creation factor". git-range-diff, the only client of the back-end,
defaults the factor to 60% (hard-coded in builtin/range-diff.c), but
allows the user to override it with the --creation-factor option.

Publish the default range factor to allow new callers of the range-diff
back-end to default to the same value without duplicating the hard-coded
constant, and to avoid worrying about various callers becoming
out-of-sync if the default ever needs to change.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Eric Sunshine 2018-07-22 05:57:11 -04:00 committed by Junio C Hamano
parent 87f1b2d45c
commit 25668659bf
2 changed files with 3 additions and 1 deletions

View File

@ -18,7 +18,7 @@ static struct strbuf *output_prefix_cb(struct diff_options *opt, void *data)
int cmd_range_diff(int argc, const char **argv, const char *prefix)
int creation_factor = 60;
struct diff_options diffopt = { NULL };
int simple_color = -1;
struct option options[] = {

View File

@ -3,6 +3,8 @@
#include "diff.h"
int show_range_diff(const char *range1, const char *range2,
int creation_factor, struct diff_options *diffopt);