Re: Transaction patch series overview

Ronnie Sahlberg [off-list ref] writes:

List, please see here an overview and ordering of the ref transaction
patch series.
These series build on each other and needs to be applied in the order
listed below.

This is an update.

rs/ref-transaction-0
---------------------------
    Early part of the "ref transaction" topic.

    * rs/ref-transaction-0:
      refs.c: change ref_transaction_update() to do error checking and
return status
      refs.c: remove the onerr argument to ref_transaction_commit
      update-ref: use err argument to get error from ref_transaction_commit
      refs.c: make update_ref_write update a strbuf on failure
      refs.c: make ref_update_reject_duplicates take a strbuf argument
for errors
      refs.c: log_ref_write should try to return meaningful errno
      refs.c: make resolve_ref_unsafe set errno to something meaningful on error
      refs.c: commit_packed_refs to return a meaningful errno on failure
      refs.c: make remove_empty_directories always set errno to something sane
      refs.c: verify_lock should set errno to something meaningful
      refs.c: make sure log_ref_setup returns a meaningful errno
      refs.c: add an err argument to repack_without_refs
      lockfile.c: make lock_file return a meaningful errno on failurei
      lockfile.c: add a new public function unable_to_lock_message
      refs.c: add a strbuf argument to ref_transaction_commit for error logging
      refs.c: allow passing NULL to ref_transaction_free
      refs.c: constify the sha arguments for
ref_transaction_create|delete|update
      refs.c: ref_transaction_commit should not free the transaction
      refs.c: remove ref_transaction_rollback

Has been merged into next.

I gave a quick re-read-thru on this and did not find anything
questionable, nor recall any issue pending.  Unless somebody
objects in the coming few days, let's move it to 'master' as part of
the first batch for 2.2.

ref-transaction-1 (2014-07-16) 20 commits
...
 The second batch of the transactional ref update series.

Has been merged into pu

rs/ref-transaction (2014-07-17) 12 commits
...
The third and final part of the basic ref-transaction work.

Has been merged into pu.

I'll re-read these two before deciding to merge them to 'next'.  Any
pending issues from the previous discussions?

This series is for once the previous transaction changes are in and
this series will add
a new backend for refs: refs-be-db.c which offloads all refs access to
an external database daemon.
An example reference implementation for an external daemon is also
provided and can be used as basis for
creating a daemon to plug into, say, a SQL database or similar.

A filesystem based backend/external daemon that is compatible with
the traditional on-disk format might be another fun demonstration.

Looking forward to shepherding the whole thing ahead ;-)  The most
fun part awaits us but there is a long way.

Thanks.