+ (export GIT_DIR=$f
+ master=`git for-each-ref "[r]efs/heads/master"`
+ sid=`git for-each-ref "[r]efs/dgit/sid"`
+ if [ "x$master" = x ] && [ "x$sid" != x ]; then
+ git update-ref refs/heads/master refs/dgit/sid
+ fi)
+ (export GIT_DIR=$f
+ git for-each-ref --format="%(refname)" | while read r; do
+ case "$r" in
+ refs/heads/master) ;;
+ refs/tags/debian/*) ;;
+ refs/dgit/*) ;;
+ *)
+ git update-ref -d "$r"
+ ;;
+ esac
+ done)