builtin-pack-object: cache small deltas

diff --git a/git-checkout.sh b/git-checkout.sh
index ed7c2c5f6aab338c844329e3ae3d9c7ce003680f..6b6facfd5a224afca735d4693d304726f4032e6f 100755 (executable)
--- a/git-checkout.sh
+++ b/git-checkout.sh
@@ -270,15 +270,7 @@ if [ "$?" -eq 0 ]; then
                fi
        elif test -n "$detached"
        then
-               # NEEDSWORK: we would want a command to detach the HEAD
-               # atomically, instead of this handcrafted command sequence.
-               # Perhaps:
-               #       git update-ref --detach HEAD $new
-               # or something like that...
-               #
-               git-rev-parse HEAD >"$GIT_DIR/HEAD.new" &&
-               mv "$GIT_DIR/HEAD.new" "$GIT_DIR/HEAD" &&
-               git-update-ref -m "checkout: moving to $arg" HEAD "$detached" ||
+               git-update-ref --no-deref -m "checkout: moving to $arg" HEAD "$detached" ||
                        die "Cannot detach HEAD"
                if test -n "$detach_warn"
                then