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From: Junio C Hamano <gitster@pobox.com>
To: Han-Wen Nienhuys <hanwen@google.com>
Cc: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Taylor Blau" <me@ttaylorr.com>,
	"Han-Wen Nienhuys via GitGitGadget" <gitgitgadget@gmail.com>,
	git@vger.kernel.org, "Han-Wen Nienhuys" <hanwenn@gmail.com>
Subject: Re: [PATCH 2/3] t1405: mark test that checks existence as REFFILES
Date: Mon, 07 Feb 2022 15:40:24 -0800	[thread overview]
Message-ID: <xmqq35kugs9j.fsf@gitster.g> (raw)
In-Reply-To: <CAFQ2z_PE_ERoocVjUGCqcFxTDUy79PFbkCVh-y+At7KvXx8TtQ@mail.gmail.com> (Han-Wen Nienhuys's message of "Mon, 7 Feb 2022 17:52:36 +0100")

Han-Wen Nienhuys <hanwen@google.com> writes:

>> It also has less chances of creating complicated control flows
>> (especially in JGit which wasn't designed for this bit from the
>> start): the tables have to be written in lexicographic order, so you
>> only can write this bit after you know if reflog entries were written
>> for a certain ref.
>
> Correction. I wish the table blocks were written in lexicographic
> order, but they are written in order 'g', ['i',] 'o', ['i'], 'g',
> ['i']. Since the 'g' block is last within a table, we could add a new
> section at the end.  My point that this is considerable work to think
> through how to make this work with JGit still stands, though.

As long as a fake/NULL entry in the reflog is invisible to iterators
and does not count as part of numbered entries when reflog@{23}
notation is used, I think it is perfectly fine to take that
approach, instead of "separate bit".  I brought it up only as a
possible alternative (i.e. "if bit is on or any entry exists, we do
have log for the ref") in case ignoring the fake entry is impossible.


  reply	other threads:[~2022-02-08  1:09 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-31 17:50 [PATCH 0/3] reftable related test tweaks Han-Wen Nienhuys via GitGitGadget
2022-01-31 17:50 ` [PATCH 1/3] t1405: explictly delete reflogs for reftable Han-Wen Nienhuys via GitGitGadget
2022-01-31 17:50 ` [PATCH 2/3] t1405: mark test that checks existence as REFFILES Han-Wen Nienhuys via GitGitGadget
2022-01-31 21:26   ` Taylor Blau
2022-01-31 22:15     ` Junio C Hamano
2022-02-01 20:06       ` Han-Wen Nienhuys
2022-02-01 21:03         ` Junio C Hamano
2022-02-01 21:22           ` Ævar Arnfjörð Bjarmason
2022-02-01 22:11             ` Junio C Hamano
2022-02-03 16:02               ` Han-Wen Nienhuys
2022-02-03 17:39                 ` Ævar Arnfjörð Bjarmason
2022-02-03 18:10                   ` Han-Wen Nienhuys
2022-02-03 23:06                 ` Junio C Hamano
2022-02-07  9:48                   ` Han-Wen Nienhuys
2022-02-07 16:52                     ` Han-Wen Nienhuys
2022-02-07 23:40                       ` Junio C Hamano [this message]
2022-02-08 14:58                         ` Han-Wen Nienhuys
2022-01-31 17:50 ` [PATCH 3/3] t5312: prepare for reftable Han-Wen Nienhuys via GitGitGadget
2022-02-01 21:17   ` Ævar Arnfjörð Bjarmason
2022-02-03 14:24     ` Han-Wen Nienhuys
2022-02-03 18:31       ` Junio C Hamano

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