git-mv: fully detect 'directory moved into itself'

diff --git a/git-count-objects.sh b/git-count-objects.sh
index 843d2fd9f2ef53ccd1600dd9b89ec70fbc639146..d6e9a3221f1f63142d9490e9abdfc5c8ac8d6348 100755 (executable)
--- a/git-count-objects.sh
+++ b/git-count-objects.sh
@@ -1,7 +1,25 @@
 #!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
 
 . git-sh-setup
 
+dc </dev/null 2>/dev/null || {
+       # This is not a real DC at all -- it just knows how
+       # this script feeds DC and does the computation itself.
+       dc () {
+               while read a b
+               do
+                       case $a,$b in
+                       0,)     acc=0 ;;
+                       *,+)    acc=$(($acc + $a)) ;;
+                       p,)     echo "$acc" ;;
+                       esac
+               done
+       }
+}
+
 echo $(find "$GIT_DIR/objects"/?? -type f -print 2>/dev/null | wc -l) objects, \
 $({
     echo 0