[PATCH v2 0/5] use packed refs for ref-transactions

This is a small patch series that continues ontop of the ref-transactions-rename series I posted earlier today.

This series expands the use of the packed refs file to make multi-ref updates much more atomic. Additionally it allows us to continue pushing external caller to use transactions instead of accessing (packed) refs directly which allows us to remove a whole bunch of refs functions from the public api.

After this series there is no real need any more to expose that packed refs even exist to external callers.

This series is built ontop of the previous series that was posted earlier today as :

Version 2: -- Updated to address Junio's concerns

Ronnie Sahlberg (5):
  refs.c: move reflog updates into its own function
  refs.c: write updates to packed refs when a transaction has more than
    one ref
  remote.c: use a transaction for deleting refs
  refs.c: make repack_without_refs static
  refs.c: make the *_packed_refs functions static

 builtin/clone.c       |  16 ++++--
 builtin/remote.c      |  69 ++++++++++++----------
 refs.c                | 155 ++++++++++++++++++++++++++++++++------------------
 refs.h                |  33 -----------
 t/t5516-fetch-push.sh |   2 +-
 5 files changed, 151 insertions(+), 124 deletions(-)