Re: What's cooking in git.git (Dec 2017, #02; Thu, 7)

From: Christian Couder <christian.couder@gmail.com>
Date: Dec 12, 2017, 09:30 UTC
Message-ID: <CAP8UFD3Jt+0Lq9Yx_7x3sJD+jG+A25bAgDg7zp+dZV43+1-vow@mail.gmail.com>
In-Reply-To: <xmqqfu8me7ot.fsf@gitster.mtv.corp.google.com>

On Thu, Dec 7, 2017 at 7:04 PM, Junio C Hamano <gitster@pobox.com> wrote:

Show 40 quoted lines

>
> * jh/object-filtering (2017-12-05) 9 commits
>   (merged to 'next' on 2017-12-05 at 3a56b51085)
>  + rev-list: support --no-filter argument
>  + list-objects-filter-options: support --no-filter
>  + list-objects-filter-options: fix 'keword' typo in comment
>   (merged to 'next' on 2017-11-27 at e5008c3b28)
>  + pack-objects: add list-objects filtering
>  + rev-list: add list-objects filtering support
>  + list-objects: filter objects in traverse_commit_list
>  + oidset: add iterator methods to oidset
>  + oidmap: add oidmap iterator methods
>  + dir: allow exclusions from blob in addition to file
>  (this branch is used by jh/fsck-promisors and jh/partial-clone.)
>
>  In preparation for implementing narrow/partial clone, the object
>  walking machinery has been taught a way to tell it to "filter" some
>  objects from enumeration.
>
>
> * jh/fsck-promisors (2017-12-05) 12 commits
>  - gc: do not repack promisor packfiles
>  - rev-list: support termination at promisor objects
>  - fixup: sha1_file: add TODO
>  - fixup: sha1_file: convert gotos to break/continue
>  - sha1_file: support lazily fetching missing objects
>  - introduce fetch-object: fetch one promisor object
>  - index-pack: refactor writing of .keep files
>  - fsck: support promisor objects as CLI argument
>  - fsck: support referenced promisor objects
>  - fsck: support refs pointing to promisor objects
>  - fsck: introduce partialclone extension
>  - extension.partialclone: introduce partial clone extension
>  (this branch is used by jh/partial-clone; uses jh/object-filtering.)
>
>  In preparation for implementing narrow/partial clone, the machinery
>  for checking object connectivity used by gc and fsck has been
>  taught that a missing object is OK when it is referenced by a
>  packfile specially marked as coming from trusted repository that
>  promises to make them available on-demand and lazily.

I am currently working on integrating this series with my external odb series (https://public-inbox.org/git/20170916080731.13925-1-chriscool@tuxfamily.org/).

Instead of using an "extension.partialclone" config variable, an odb will be configured like using an "odb.<odbname>.promisorRemote" (the name might still change) config variable. Other odbs could still be configured using "odb.<odbname>.scriptCommand" and "odb.<odbname>.subprocessCommand".

The current work is still very much WIP and some tests fail, but you can take a look there:

https://github.com/chriscool/git/tree/gl-promisor-external-odb440