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From: Junio C Hamano <gitster@pobox.com>
To: Taylor Blau <me@ttaylorr.com>
Cc: git@vger.kernel.org, Jeff King <peff@peff.net>,
	Derrick Stolee <derrickstolee@github.com>
Subject: Re: [PATCH] builtin/pack-objects.c: introduce `pack.extraCruftTips`
Date: Thu, 20 Apr 2023 12:52:55 -0700	[thread overview]
Message-ID: <xmqq1qkez5yg.fsf@gitster.g> (raw)
In-Reply-To: <ZEGSvfEkE5PhokKv@nand.local> (Taylor Blau's message of "Thu, 20 Apr 2023 15:30:05 -0400")

Taylor Blau <me@ttaylorr.com> writes:

>> But it makes me wonder if it would make the life of end-users simpler
>> if we reserve a special ref hierarchy, say "refs/crufts/*", than
>> having to write a program for doing something like this.
>
> Ideally, yes. But I think there are certain instances where there are
> far too many (disconnected) objects that creating a reference for each
> part of the unreachable object graph that we want to keep is infeasible.
>
> Another way to think about pack.extraCruftTips is that the program
> invocation is acting like the refs/crufts hierarchy would if it existed,
> but without actually having to write all of those references down.

I do not need another way, actually.

If it is infeasible to keep track of what we want to keep from
expiration because they are too numerous and disconnected, I have to
wonder how a programatic way to enumerate them is feasible,
especially the enumeration is for doing something useful.  

You can write a program that enumerates all the loose objects and
existing object names that appear in .idx files and such a program
will cover "everything is too disconnected" case, but that does not
count as a useful use case---disabling cruft expiration would
achieve the same thing.  Is there a less hand-wavy use case you have
in mind?

THanks.


  reply	other threads:[~2023-04-20 19:53 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-20 17:27 [PATCH] builtin/pack-objects.c: introduce `pack.extraCruftTips` Taylor Blau
2023-04-20 18:12 ` Junio C Hamano
2023-04-20 19:30   ` Taylor Blau
2023-04-20 19:52     ` Junio C Hamano [this message]
2023-04-20 20:48       ` Taylor Blau
2023-04-21  0:10 ` Chris Torek
2023-04-21  2:14   ` Taylor Blau
2023-04-25 19:42 ` Derrick Stolee
2023-04-25 21:25   ` Taylor Blau
2023-04-26 10:52     ` Derrick Stolee
2023-05-03  0:06       ` Taylor Blau
2023-05-03  0:09 ` [PATCH v2] " Taylor Blau
2023-05-03 14:01   ` Derrick Stolee
2023-05-03 19:59   ` Jeff King
2023-05-03 21:22     ` Taylor Blau
2023-05-05 21:23       ` Jeff King
2023-05-06  0:06         ` Taylor Blau
2023-05-06  0:14           ` Taylor Blau
2023-05-03 21:28     ` Taylor Blau
2023-05-05 21:26       ` Jeff King
2023-05-05 22:13         ` Jeff King
2023-05-06  0:13           ` Taylor Blau
2023-05-06  0:20             ` Taylor Blau
2023-05-06  2:12             ` Jeff King
2023-05-03 22:05 ` [PATCH v3] " Taylor Blau
2023-05-03 23:18   ` Junio C Hamano
2023-05-03 23:42     ` Junio C Hamano
2023-05-03 23:48       ` Taylor Blau
2023-05-03 23:50       ` Taylor Blau
2023-05-05 21:39     ` Jeff King
2023-05-05 22:19   ` Jeff King

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