Add a very basic test script for git mergetool

diff --git a/builtin-blame.c b/builtin-blame.c
index c361ee194e0bbbfafdf97d92cf8d68a8eb638dfd..bfd562d7d2b897ad4ab3d35dda33701e315b7d5d 100644 (file)
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -123,8 +123,7 @@ static inline struct origin *origin_incref(struct origin *o)
 static void origin_decref(struct origin *o)
 {
        if (o && --o->refcnt <= 0) {
-               if (o->file.ptr)
-                       free(o->file.ptr);
+               free(o->file.ptr);
                free(o);
        }
 }
@@ -1894,9 +1893,7 @@ static unsigned parse_score(const char *arg)
 
 static const char *add_prefix(const char *prefix, const char *path)
 {
-       if (!prefix || !prefix[0])
-               return path;
-       return prefix_path(prefix, strlen(prefix), path);
+       return prefix_path(prefix, prefix ? strlen(prefix) : 0, path);
 }
 
 /*
@@ -2092,7 +2089,7 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
        if (!mode) {
                int pos = cache_name_pos(path, len);
                if (0 <= pos)
-                       mode = ntohl(active_cache[pos]->ce_mode);
+                       mode = active_cache[pos]->ce_mode;
                else
                        /* Let's not bother reading from HEAD tree */
                        mode = S_IFREG | 0644;
@@ -2369,7 +2366,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
         * bottom commits we would reach while traversing as
         * uninteresting.
         */
-       prepare_revision_walk(&revs);
+       if (prepare_revision_walk(&revs))
+               die("revision walk setup failed");
 
        if (is_null_sha1(sb.final->object.sha1)) {
                char *buf;