Re: [PATCH v3 0/2] refs: introduce reftable backend

> Hi,
>
> this is the third version of my patch series that introduces the
> reftable backend.
>
> The only real change in this version is that I've pulled in
> kn/for-all-refs at 693e807311 (for-each-ref: avoid filtering on empty
> pattern, 2024-01-29) as a dependency. This series introduces a new
> DO_FOR_EACH_INCLUDE_ALL_REFS flag that we need to handle in the reftable
> backend. With this change all tests should pass again.
>
> Patrick
>
> Patrick Steinhardt (2):
>   refs: introduce reftable backend
>   ci: add jobs to test with the reftable backend
>
>  .github/workflows/main.yml                    |    9 +
>  .gitlab-ci.yml                                |    9 +
>  Documentation/ref-storage-format.txt          |    2 +
>  .../technical/repository-version.txt          |    5 +-
>  Makefile                                      |    1 +
>  ci/lib.sh                                     |    2 +-
>  ci/run-build-and-tests.sh                     |    3 +
>  contrib/workdir/git-new-workdir               |    2 +-
>  path.c                                        |    2 +-
>  path.h                                        |    1 +
>  refs.c                                        |    1 +
>  refs/refs-internal.h                          |    1 +
>  refs/reftable-backend.c                       | 2297 +++++++++++++++++
>  repository.h                                  |    5 +-
>  t/t0610-reftable-basics.sh                    |  887 +++++++
>  t/t0611-reftable-httpd.sh                     |   26 +
>  t/test-lib.sh                                 |    2 +
>  17 files changed, 3248 insertions(+), 7 deletions(-)
>  create mode 100644 refs/reftable-backend.c
>  create mode 100755 t/t0610-reftable-basics.sh
>  create mode 100755 t/t0611-reftable-httpd.sh
>
> Range-diff against v2:
> 1:  d6548dcfad ! 1:  d83e66e980 refs: introduce reftable backend
>     @@ refs/reftable-backend.c (new)
>      +{
>      +	switch (log->value_type) {
>      +	case REFTABLE_LOG_UPDATE:
>     -+		/* when we write log records, the hashes are owned by a struct
>     -+		 * oid */
>     ++		/*
>     ++		 * When we write log records, the hashes are owned by the
>     ++		 * caller and thus shouldn't be free'd.
>     ++		 */
>      +		log->value.update.old_hash = NULL;
>      +		log->value.update.new_hash = NULL;
>      +		break;
>     @@ refs/reftable-backend.c (new)
>      +			break;
>      +
>      +		/*
>     -+		 * The files backend only lists references contained in
>     -+		 * "refs/". We emulate the same behaviour here and thus skip
>     -+		 * all references that don't start with this prefix.
>     ++		 * Unless DO_FOR_EACH_INCLUDE_ALL_REFS is set, we only list
>     ++		 * refs starting with "refs/" to mimic the "files" backend.
>      +		 */
>     -+		if (!starts_with(iter->ref.refname, "refs/"))
>     ++		if (!(iter->flags & DO_FOR_EACH_INCLUDE_ALL_REFS) &&
>     ++		    !starts_with(iter->ref.refname, "refs/"))
>      +			continue;
>      +
>      +		if (iter->prefix &&
> 2:  63eafc9f5b = 2:  146bb95c03 ci: add jobs to test with the reftable backend