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From: Duy Nguyen <pclouds@gmail.com>
To: Jeff King <peff@peff.net>,
	Johannes Schindelin <Johannes.Schindelin@gmx.de>
Cc: gitgitgadget@gmail.com, Git Mailing List <git@vger.kernel.org>,
	Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH 2/2] repack -ad: prune the list of shallow commits
Date: Wed, 18 Jul 2018 19:31:40 +0200	[thread overview]
Message-ID: <CACsJy8DW8=FoRyEwAy48S76q0gxQbrS3emHou7QDhHqzwJRu+g@mail.gmail.com> (raw)
In-Reply-To: <20180717194148.GC30594@sigill.intra.peff.net>

On Tue, Jul 17, 2018 at 9:41 PM Jeff King <peff@peff.net> wrote:
> I slept on this to see if I could brainstorm any other ways.
>
> ..
>
> Sort of an aside to the patch under discussion, but I think it may make
> sense for prune_shallow() to take a callback function for determining
> whether a commit is reachable.
>
> I have an old patch that teaches git-prune to lazily do the reachability
> check, since in many cases "git repack" will have just packed all of the
> loose objects. But it just occurred to me that this patch is totally
> broken with respect to prune_shallow(), because it would not set the
> SEEN flag (I've literally been running with it for years, which goes to
> show how often I use the shallow feature).
>
> And if we were to have repack do a prune_shallow(), it may want to use a
> different method than traversing and marking each object SEEN.

All of this sounds good. The only thing I'd like to do a bit
differently is to pass the reachable commits in prune_shallow() as a
commit-slab instead of taking a callback function. I'll refactor this
code, move prune_shallow() to a separate command prune-shallow and do
the locking thing.

Johannes I could take over this bug too (since I introduced the
shallow pruning and missed this part) if you are busy, but if you want
it to be done fast, I can't help. I still have a list of things to go
through.
-- 
Duy

  reply	other threads:[~2018-07-18 17:32 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-13 20:18 [PATCH 0/2] repack -ad: fix after `fetch --prune` in a shallow repository Johannes Schindelin via GitGitGadget
2018-07-11 22:17 ` [PATCH 1/2] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-07-11 22:23 ` [PATCH 2/2] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget
2018-07-13 20:31   ` Jeff King
2018-07-14 21:56     ` Johannes Schindelin
2018-07-16 17:36       ` Jeff King
2018-07-17 16:25         ` Junio C Hamano
2018-07-19 16:42           ` Johannes Schindelin
2018-07-19 20:49             ` Junio C Hamano
2018-07-20  9:30               ` Junio C Hamano
2018-07-20 19:31                 ` Jeff King
2018-07-17 17:28         ` Duy Nguyen
2018-07-17 19:41           ` Jeff King
2018-07-18 17:31             ` Duy Nguyen [this message]
2018-07-18 17:45               ` Jeff King
2018-07-18 17:48                 ` Duy Nguyen
2018-07-17 16:39   ` Duy Nguyen
2018-07-17 16:48     ` Duy Nguyen
2018-07-19 17:50       ` Johannes Schindelin
2018-07-17 13:51 ` [PATCH v2 0/2] repack -ad: fix after `fetch --prune` in a shallow repository Johannes Schindelin via GitGitGadget
2018-07-17 13:51   ` [PATCH v2 1/2] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-07-17 13:51   ` [PATCH v2 2/2] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget
2018-07-17 17:45     ` Eric Sunshine
2018-07-17 19:15   ` [PATCH v2 0/2] repack -ad: fix after `fetch --prune` in a shallow repository Jeff King
2018-07-17 19:20     ` Jeff King
2018-07-19 17:48       ` Johannes Schindelin
2018-10-22 22:05   ` [PATCH v3 0/3] repack -ad: fix after fetch --prune " Johannes Schindelin via GitGitGadget
2018-10-22 22:05     ` [PATCH v3 1/3] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-10-24  3:39       ` Junio C Hamano
2018-10-24  8:12         ` Johannes Schindelin
2018-10-24  8:38           ` Johannes Schindelin
2018-10-22 22:05     ` [PATCH v3 2/3] shallow: offer to prune only non-existing entries Johannes Schindelin via GitGitGadget
2018-10-24  3:47       ` Junio C Hamano
2018-10-24  8:01         ` Johannes Schindelin
2018-10-24 15:56           ` Johannes Schindelin
2018-10-25 18:54             ` Jonathan Tan
2018-10-26  7:59               ` Johannes Schindelin
2018-10-26 20:49                 ` Jonathan Tan
2018-10-29 20:45                   ` Johannes Schindelin
2018-10-22 22:05     ` [PATCH v3 3/3] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget
2018-10-24  3:56       ` Junio C Hamano
2018-10-24  8:02         ` Johannes Schindelin
2018-10-23 10:15     ` [PATCH v3 0/3] repack -ad: fix after fetch --prune in a shallow repository Johannes Schindelin
2018-10-24 15:56     ` [PATCH v4 " Johannes Schindelin via GitGitGadget
2018-10-24 15:56       ` [PATCH v4 1/3] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-10-24 15:56       ` [PATCH v4 2/3] shallow: offer to prune only non-existing entries Johannes Schindelin via GitGitGadget
2018-10-24 15:56       ` [PATCH v4 3/3] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget

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