From: Junio C Hamano <gitster@pobox.com>
To: Christian Couder <christian.couder@gmail.com>
Cc: Duy Nguyen <pclouds@gmail.com>, git <git@vger.kernel.org>,
Jeff King <peff@peff.net>
Subject: Re: [PATCH v2 4/4] bundle v3: the beginning
Date: Tue, 07 Jun 2016 12:23:40 -0700 [thread overview]
Message-ID: <xmqqinxkpzur.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <CAP8UFD2t=2wJ=1U1ctMYNuMSejBYLh2yeLU7ZfP5Q6KLxUApjQ@mail.gmail.com> (Christian Couder's message of "Tue, 7 Jun 2016 10:46:07 +0200")
Christian Couder <christian.couder@gmail.com> writes:
> Git can store its objects only in the form of loose objects in
> separate files or packed objects in a pack file.
> To be able to better handle some kind of objects, for example big
> blobs, it would be nice if Git could store its objects in other object
> databases (ODB).
>
> To do that, this patch series makes it possible to register commands,
> using "odb.<odbname>.command" config variables, to access external
> ODBs. Each specified command will then be called the following ways:
Hopefully it is done via a cheap RPC instead of forking/execing the
command for each and every object lookup.
> - "<command> have": the command should output the sha1, size and
> type of all the objects the external ODB contains, one object per
> line.
Why size and type at this point is needed by the clients? That is
more expensive to compute than just a bare list of object names.
> - "<command> get <sha1>": the command should then read from the
> external ODB the content of the object corresponding to <sha1> and
> output it on stdout.
The type and size should be given at this point.
> - "<command> put <sha1> <size> <type>": the command should then read
> from stdin an object and store it in the external ODB.
Is ODB required to sanity check that <sha1> matches what the data
hashes down to?
If this thing is primarily to offload large blobs, you might also
want not "get" but "checkout <sha1> <path>" to bypass Git entirely,
but I haven't thought it through.
next prev parent reply other threads:[~2016-06-07 19:23 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-01 23:35 [PATCH 1/2] bundle: plug resource leak Junio C Hamano
2016-03-01 23:36 ` [PATCH 2/2] bundle: keep a copy of bundle file name in the in-core bundle header Junio C Hamano
2016-03-02 9:01 ` Jeff King
2016-03-02 18:15 ` Junio C Hamano
2016-03-02 20:32 ` [PATCH v2 0/4] "split bundle" preview Junio C Hamano
2016-03-02 20:32 ` [PATCH v2 1/4] bundle doc: 'verify' is not about verifying the bundle Junio C Hamano
2016-03-02 20:32 ` [PATCH v2 2/4] bundle: plug resource leak Junio C Hamano
2016-03-02 20:32 ` [PATCH v2 3/4] bundle: keep a copy of bundle file name in the in-core bundle header Junio C Hamano
2016-03-02 20:49 ` Jeff King
2016-03-02 20:32 ` [PATCH v2 4/4] bundle v3: the beginning Junio C Hamano
2016-03-03 1:36 ` Duy Nguyen
2016-03-03 2:57 ` Junio C Hamano
2016-03-03 5:15 ` Duy Nguyen
2016-05-20 12:39 ` Christian Couder
2016-05-31 12:43 ` Duy Nguyen
2016-05-31 13:18 ` Christian Couder
2016-06-01 13:37 ` Duy Nguyen
2016-06-07 14:49 ` Christian Couder
2016-06-01 14:00 ` Duy Nguyen
2016-06-07 8:46 ` Christian Couder
2016-06-07 8:53 ` Mike Hommey
2016-06-07 10:22 ` Duy Nguyen
2016-06-07 19:23 ` Junio C Hamano [this message]
2016-06-07 20:23 ` Jeff King
2016-06-08 10:44 ` Duy Nguyen
2016-06-08 16:19 ` Jeff King
2016-06-09 8:53 ` Duy Nguyen
2016-06-09 17:23 ` Jeff King
2016-06-08 18:05 ` Junio C Hamano
2016-06-08 19:00 ` Jeff King
2016-05-31 22:23 ` Jeff King
2016-05-31 22:31 ` Jeff King
2016-06-07 13:19 ` Christian Couder
2016-06-07 20:35 ` Jeff King
2016-03-02 8:54 ` [PATCH 1/2] bundle: plug resource leak Jeff King
2016-03-02 9:00 ` Junio C Hamano
2016-03-02 9:02 ` Jeff King
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