[PATCH 2/2] WIP range-diff: print some statistics about the range

[Stefan Beller <sbeller@google.com>]

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 range-diff.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/range-diff.c b/range-diff.c
index a977289b7dc..fbabce5f91f 100644
--- a/range-diff.c
+++ b/range-diff.c
@@ -264,6 +264,8 @@ static void get_correspondences(struct string_list *a, struct string_list *b,
 	free(b2a);
 }
 
+int completely_different, slightly_different, same;
+
 static void output_pair_header(struct diff_options *diffopt,
 			       int patch_no_width,
 			       struct strbuf *buf,
@@ -288,15 +290,19 @@ static void output_pair_header(struct diff_options *diffopt,
 	if (!b_util) {
 		color = color_old;
 		status = '<';
+		slightly_different++;
 	} else if (!a_util) {
 		color = color_new;
 		status = '>';
+		completely_different++;
 	} else if (strcmp(a_util->patch, b_util->patch)) {
 		color = color_commit;
 		status = '!';
+		slightly_different++;
 	} else {
 		color = color_commit;
 		status = '=';
+		same++;
 	}
 
 	strbuf_reset(buf);
@@ -439,12 +445,15 @@ int show_range_diff(const char *range1, const char *range2,
 		res = error(_("could not parse log for '%s'"), range2);
 
 	diffopt->color_moved = COLOR_MOVED_DEFAULT;
+
 	if (!res) {
 		find_exact_matches(&branch1, &branch2);
 		get_correspondences(&branch1, &branch2, creation_factor);
 		output(&branch1, &branch2, diffopt);
 	}
 
+	printf("patch ranges are %d same, %d slightly different and %d completely different\n", same, slightly_different, completely_different);
+
 	string_list_clear(&branch1, 1);
 	string_list_clear(&branch2, 1);
 
-- 
2.18.0.597.ga71716f1ad-goog