revision: forbid combining --graph and --no-walk

diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index 1fadd69f8809f91337a27b98f244a3cf7183b23f..c7256741cc2a28f333d6a9be5f12e248df99ed5e 100755 (executable)
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -1356,6 +1356,7 @@ sub patch_update_file {
                  $patch_mode_flavour{TARGET},
                  " [y,n,q,a,d,/$other,?]? ";
                my $line = prompt_single_character;
+               last unless defined $line;
                if ($line) {
                        if ($line =~ /^y/i) {
                                $hunk[$ix]{USE} = 1;