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-rw-r--r--diff.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/diff.c b/diff.c
index 90e0844108..2df085f3c6 100644
--- a/diff.c
+++ b/diff.c
@@ -550,9 +550,12 @@ const char mime_boundary_leader[] = "------------";
static int scale_linear(int it, int width, int max_change)
{
/*
- * round(width * it / max_change);
+ * make sure that at least one '-' is printed if there were deletions,
+ * and likewise for '+'.
*/
- return (it * width * 2 + max_change) / (max_change * 2);
+ if (max_change < 2)
+ return it;
+ return ((it - 1) * (width - 1) + max_change - 1) / (max_change - 1);
}
static void show_name(const char *prefix, const char *name, int len,
@@ -684,9 +687,9 @@ static void show_stats(struct diffstat_t* data, struct diff_options *options)
dels += del;
if (width <= max_change) {
- total = scale_linear(total, width, max_change);
add = scale_linear(add, width, max_change);
- del = total - add;
+ del = scale_linear(del, width, max_change);
+ total = add + del;
}
show_name(prefix, name, len, reset, set);
printf("%5d ", added + deleted);