merge-recursive: don't segfault while handling rename clashes

diff --git a/builtin-mv.c b/builtin-mv.c
index 4f65b5ae9baf66953e79886fd93fe31786b24d36..01270fefdfb04ed27379b1ca761a811b929ce887 100644 (file)
--- a/builtin-mv.c
+++ b/builtin-mv.c
@@ -162,7 +162,9 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                                }
                                argc += last - first;
                        }
-               } else if (lstat(dst, &st) == 0) {
+               } else if (cache_name_pos(src, length) < 0)
+                       bad = "not under version control";
+               else if (lstat(dst, &st) == 0) {
                        bad = "destination exists";
                        if (force) {
                                /*
@@ -177,9 +179,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                                } else
                                        bad = "Cannot overwrite";
                        }
-               } else if (cache_name_pos(src, length) < 0)
-                       bad = "not under version control";
-               else if (string_list_has_string(&src_for_dst, dst))
+               } else if (string_list_has_string(&src_for_dst, dst))
                        bad = "multiple sources for the same target";
                else
                        string_list_insert(dst, &src_for_dst);
@@ -192,6 +192,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                                        memmove(destination + i,
                                                destination + i + 1,
                                                (argc - i) * sizeof(char *));
+                                       i--;
                                }
                        } else
                                die ("%s, source=%s, destination=%s",