pathspec: catch prepending :(prefix) on pathspec with short magic

diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index c97ac9b463fc1248b2dfe70d5fdf1dc1679e2bf8..401eb72c619d432c92fc66b470fae778117bcace 100644 (file)
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -131,8 +131,7 @@ static void diffcore_pickaxe_grep(struct diff_options *o)
        return;
 }
 
-static unsigned int contains(mmfile_t *mf, struct diff_options *o,
-                            regex_t *regexp, kwset_t kws)
+static unsigned int contains(mmfile_t *mf, regex_t *regexp, kwset_t kws)
 {
        unsigned int cnt;
        unsigned long sz;
@@ -176,11 +175,9 @@ static int has_changes(mmfile_t *one, mmfile_t *two,
                       struct diff_options *o,
                       regex_t *regexp, kwset_t kws)
 {
-       if (!one)
-               return contains(two, o, regexp, kws) != 0;
-       if (!two)
-               return contains(one, o, regexp, kws) != 0;
-       return contains(one, o, regexp, kws) != contains(two, o, regexp, kws);
+       unsigned int one_contains = one ? contains(one, regexp, kws) : 0;
+       unsigned int two_contains = two ? contains(two, regexp, kws) : 0;
+       return one_contains != two_contains;
 }
 
 static int pickaxe_match(struct diff_filepair *p, struct diff_options *o,