1 file changed, 10 insertions, 8 deletions
diff --git a/source/shared.c b/source/shared.c
index e075b8a..183d085 100644
--- a/source/shared.c
+++ b/source/shared.c
@@ -394,18 +394,20 @@ int cgit_blob_too_large(size_t size)
 	return ctx.cfg.max_blob_size && size / 1024 > (size_t)ctx.cfg.max_blob_size;
 }
 
-void cgit_diff_limit_path(struct diff_options *opt, const char *prefix)
+void cgit_literal_pathspec(struct pathspec *ps, struct pathspec_item *item, const char *path)
 {
-	struct pathspec_item *item;
+	int len = path ? strlen(path) : 0;
 
-	item = xcalloc(1, sizeof(*item));
-	item->match = xstrdup(prefix);
-	item->len = strlen(prefix);
 	// nowildcard_len matching len makes git treat the path as literal
 	// rather than as a glob.
-	item->nowildcard_len = item->len;
-	opt->pathspec.nr = 1;
-	opt->pathspec.items = item;
+	*item = (struct pathspec_item){ .match = path, .len = len, .nowildcard_len = len };
+	ps->nr = path ? 1 : 0;
+	ps->items = item;
+}
+
+void cgit_diff_limit_path(struct diff_options *opt, const char *prefix)
+{
+	cgit_literal_pathspec(&opt->pathspec, xmalloc(sizeof(struct pathspec_item)), xstrdup(prefix));
 }
 
 void cgit_diff_tree(const struct object_id *old_oid, const struct object_id *new_oid,