builtin-mv.c: check for unversionned files before looking at the destination.

The previous code was failing in the case where one moves an
unversionned file to an existing destination, with mv -f: the
"existing destination" was checked first, and the error was cancelled
by the force flag.

We now check the unrecoverable error first, which fixes the bug.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-mv.c b/builtin-mv.c
index bce9959293e30925c4b16c40ac33a3f2e0474e30..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);

diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index ef7e56ed6307ba351caaa38d92e0be04a3f920bc..d2ec550af6c749ed6f41c89ca9f4c238e227034d 100755 (executable)
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -58,7 +58,7 @@ test_expect_success \
      test ! -f path0/untracked1 &&
      test ! -f path0/untracked2'
 
-test_expect_failure \
+test_expect_success \
     'checking -f on untracked file with existing target' \
     'touch path0/untracked1 &&
      git mv -f untracked1 path0