fast-import: prevent producing bad delta

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index aa16b8356507e4e669ee5c4cb4b5a667942d559e..94e26ed5e8dcf84c4f238c76b6c508dc84d0b7ea 100644 (file)
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -140,6 +140,13 @@ cd_to_toplevel () {
        }
 }
 
+require_work_tree_exists () {
+       if test "z$(git rev-parse --is-bare-repository)" != zfalse
+       then
+               die "fatal: $0 cannot be used without a working tree."
+       fi
+}
+
 require_work_tree () {
        test "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = true ||
        die "fatal: $0 cannot be used without a working tree."