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-rw-r--r--diffcore-rename.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/diffcore-rename.c b/diffcore-rename.c
index ed99fe2cc..e99269872 100644
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -133,7 +133,7 @@ static int estimate_similarity(struct diff_filespec *src,
* match than anything else; the destination does not even
* call into this function in that case.
*/
- unsigned long delta_size, base_size, src_copied, literal_added;
+ unsigned long max_size, delta_size, base_size, src_copied, literal_added;
unsigned long delta_limit;
int score;
@@ -144,9 +144,9 @@ static int estimate_similarity(struct diff_filespec *src,
if (!S_ISREG(src->mode) || !S_ISREG(dst->mode))
return 0;
- delta_size = ((src->size < dst->size) ?
- (dst->size - src->size) : (src->size - dst->size));
+ max_size = ((src->size > dst->size) ? src->size : dst->size);
base_size = ((src->size < dst->size) ? src->size : dst->size);
+ delta_size = max_size - base_size;
/* We would not consider edits that change the file size so
* drastically. delta_size must be smaller than
@@ -174,12 +174,10 @@ static int estimate_similarity(struct diff_filespec *src,
/* How similar are they?
* what percentage of material in dst are from source?
*/
- if (dst->size < src_copied)
- score = MAX_SCORE;
- else if (!dst->size)
+ if (!dst->size)
score = 0; /* should not happen */
else
- score = src_copied * MAX_SCORE / dst->size;
+ score = src_copied * MAX_SCORE / max_size;
return score;
}