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From: Taylor Blau <me@ttaylorr.com>
To: git@vger.kernel.org
Cc: gitster@pobox.com, peff@peff.net
Subject: [PATCH 0/3] repack: don't move existing packs out of the way
Date: Mon, 16 Nov 2020 13:41:04 -0500	[thread overview]
Message-ID: <cover.1605552016.git.me@ttaylorr.com> (raw)

Hi,

Here are a few patches that GitHub has been running to get rid of the
rename-to-old behavior that 'git repack' has when its invocation of
'pack-objects' produced a pack that already exists.

This was developed in the context of a circular dependency involving
writing a multi-pack index during 'git repack' (we have some patches
that do so by adding a '--write-midx' in the repack builtin), but it
should be generally useful.

The idea (which is explained in detail in the final patch) is that prior
to 1190a1acf8 (pack-objects: name pack files after trailer hash,
2013-12-05), 'git repack' had to move existing packs out of the way for
safety, but after 1190a1acf8 no longer needs to do so.

This makes 'git repack' a little simpler since it no longer has to deal
with any failures encountered during this rename-to-old behavior. It
also paves the way for sending the MIDX-during-repack patches.

Thanks,
Taylor

Jeff King (1):
  repack: make "exts" array available outside cmd_repack()

Taylor Blau (2):
  builtin/repack.c: keep track of what pack-objects wrote
  builtin/repack.c: don't move existing packs out of the way

 builtin/repack.c | 153 +++++++++++++++++------------------------------
 1 file changed, 54 insertions(+), 99 deletions(-)

--
2.29.2.312.gabc4d358d8

             reply	other threads:[~2020-11-16 18:42 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-16 18:41 Taylor Blau [this message]
2020-11-16 18:41 ` [PATCH 1/3] repack: make "exts" array available outside cmd_repack() Taylor Blau
2020-11-16 18:41 ` [PATCH 2/3] builtin/repack.c: keep track of what pack-objects wrote Taylor Blau
2020-11-16 18:41 ` [PATCH 3/3] builtin/repack.c: don't move existing packs out of the way Taylor Blau
2020-11-16 23:29   ` Junio C Hamano
2020-11-17  0:02     ` Jeff King
2020-11-17  0:26       ` Taylor Blau
2020-11-17  0:25     ` Taylor Blau
2020-11-17  0:46       ` Junio C Hamano
2020-11-17 20:15         ` Taylor Blau
2020-11-17 21:28           ` Junio C Hamano

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