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From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Jonathan Tan <jonathantanmy@google.com>
Cc: git@vger.kernel.org, stolee@gmail.com, git@jeffhostetler.com
Subject: Re: [PATCH] rebase --merge: optionally skip upstreamed commits
Date: Tue, 10 Mar 2020 13:17:28 +0100 (CET)	[thread overview]
Message-ID: <nycvar.QRO.7.76.6.2003101315100.46@tvgsbejvaqbjf.bet> (raw)
In-Reply-To: <20200309205523.121319-1-jonathantanmy@google.com>

Hi Jonathan,

On Mon, 9 Mar 2020, Jonathan Tan wrote:

> When rebasing against an upstream that has had many commits since the
> original branch was created:
>
>  O -- O -- ... -- O -- O (upstream)
>   \
>    -- O (my-dev-branch)
>
> because "git rebase" attempts to exclude commits that are duplicates of
> upstream ones, it must read the contents of every novel upstream commit,
> in addition to the tip of the upstream and the merge base. This can be a
> significant performance hit, especially in a partial clone, wherein a
> read of an object may end up being a fetch.
>
> Add a flag to "git rebase" to allow suppression of this feature. This
> flag only works when using the "merge" backend.

I wonder whether we can make this a bit more user-friendly by defaulting
to `--right-only` if there are no promised objects in the symmetric range,
and if there _are_ promised objects, to skip `--right-only`, possibly with
an advice that we did that and how to force it to download the promised
objects?

Ciao,
Dscho

  parent reply	other threads:[~2020-03-10 12:17 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-09 20:55 [PATCH] rebase --merge: optionally skip upstreamed commits Jonathan Tan
2020-03-10  2:10 ` Taylor Blau
2020-03-10 15:51   ` Jonathan Tan
2020-03-10 12:17 ` Johannes Schindelin [this message]
2020-03-10 16:00   ` Jonathan Tan
2020-03-10 18:56 ` Elijah Newren
2020-03-10 22:56   ` Jonathan Tan
2020-03-12 18:04     ` Jonathan Tan
2020-03-12 22:40       ` Elijah Newren
2020-03-14  8:04         ` Elijah Newren
2020-03-17  3:03           ` Jonathan Tan
2020-03-18 17:30 ` [PATCH v2] " Jonathan Tan
2020-03-18 18:47   ` Junio C Hamano
2020-03-18 19:28     ` Jonathan Tan
2020-03-18 19:55       ` Junio C Hamano
2020-03-18 20:41         ` Elijah Newren
2020-03-18 23:39           ` Junio C Hamano
2020-03-19  0:17             ` Elijah Newren
2020-03-18 20:20   ` Junio C Hamano
2020-03-26 17:50   ` Jonathan Tan
2020-03-26 19:17     ` Elijah Newren
2020-03-26 19:27     ` Junio C Hamano
2020-03-29 10:12   ` [PATCH v2 4/4] t3402: use POSIX compliant regex(7) Đoàn Trần Công Danh
2020-03-30  4:06 ` [PATCH v3] rebase --merge: optionally skip upstreamed commits Jonathan Tan
2020-03-30  5:09   ` Junio C Hamano
2020-03-30  5:22   ` Danh Doan
2020-03-30 12:13   ` Derrick Stolee
2020-03-30 16:49     ` Junio C Hamano
2020-03-30 16:57     ` Jonathan Tan
2020-03-31 11:55       ` Derrick Stolee
2020-03-31 16:27   ` Elijah Newren
2020-03-31 18:34     ` Junio C Hamano
2020-03-31 18:43       ` Junio C Hamano
2020-04-10 22:27     ` Jonathan Tan
2020-04-11  0:06       ` Elijah Newren
2020-04-11  1:11         ` Jonathan Tan
2020-04-11  2:46           ` Elijah Newren
  -- strict thread matches above, loose matches on Subject: below --
2020-03-26  7:35 [PATCH 0/3] add travis job for linux with musl libc Đoàn Trần Công Danh
2020-03-26  7:35 ` [PATCH 1/3] ci: libify logic for usage and checking CI_USER Đoàn Trần Công Danh
2020-03-26  7:35 ` [PATCH 2/3] ci: refactor docker runner script Đoàn Trần Công Danh
2020-03-26 16:06   ` Eric Sunshine
2020-03-28 17:53   ` SZEDER Gábor
2020-03-29  6:36     ` Danh Doan
2020-03-26  7:35 ` [PATCH 3/3] travis: build and test on Linux with musl libc and busybox Đoàn Trần Công Danh
2020-03-29  5:49 ` [PATCH 0/3] add travis job for linux with musl libc Junio C Hamano
2020-03-29 10:12 ` [PATCH v2 0/4] Travis + Azure jobs " Đoàn Trần Công Danh
2020-03-29 10:12   ` [PATCH v2 1/4] ci: libify logic for usage and checking CI_USER Đoàn Trần Công Danh
2020-03-29 10:12   ` [PATCH v2 2/4] ci: refactor docker runner script Đoàn Trần Công Danh
2020-04-01 21:51     ` SZEDER Gábor
2020-03-29 10:12   ` [PATCH v2 3/4] travis: build and test on Linux with musl libc and busybox Đoàn Trần Công Danh
2020-04-01 22:18     ` SZEDER Gábor
2020-04-02  1:42       ` Danh Doan
2020-04-07 14:53       ` Johannes Schindelin
2020-04-07 21:35         ` Junio C Hamano
2020-04-10 13:38           ` Johannes Schindelin
2020-03-29 16:23   ` [PATCH v2 0/4] Travis + Azure jobs for linux with musl libc Junio C Hamano
2020-04-02 13:03   ` [PATCH v3 0/6] " Đoàn Trần Công Danh
2020-04-02 13:04     ` [PATCH v3 1/6] ci: make MAKEFLAGS available inside the Docker container in the Linux32 job Đoàn Trần Công Danh
2020-04-02 13:04     ` [PATCH v3 2/6] ci/lib-docker: preserve required environment variables Đoàn Trần Công Danh
2020-04-03  8:22       ` SZEDER Gábor
2020-04-03 10:09         ` Danh Doan
2020-04-03 19:55           ` SZEDER Gábor
2020-04-02 13:04     ` [PATCH v3 3/6] ci/linux32: parameterise command to switch arch Đoàn Trần Công Danh
2020-04-02 13:04     ` [PATCH v3 4/6] ci: refactor docker runner script Đoàn Trần Công Danh
2020-04-02 13:04     ` [PATCH v3 5/6] ci/linux32: libify install-dependencies step Đoàn Trần Công Danh
2020-04-02 13:04     ` [PATCH v3 6/6] travis: build and test on Linux with musl libc and busybox Đoàn Trần Công Danh
2020-04-02 17:53     ` [PATCH v3 0/6] Travis + Azure jobs for linux with musl libc Junio C Hamano
2020-04-03  0:23       ` Danh Doan
2020-04-04  1:08   ` [PATCH v4 0/6] Travis " Đoàn Trần Công Danh
2020-04-04  1:08     ` [PATCH v4 1/6] ci: make MAKEFLAGS available inside the Docker container in the Linux32 job Đoàn Trần Công Danh
2020-04-04  1:08     ` [PATCH v4 2/6] ci/lib-docker: preserve required environment variables Đoàn Trần Công Danh
2020-04-04  1:08     ` [PATCH v4 3/6] ci/linux32: parameterise command to switch arch Đoàn Trần Công Danh
2020-04-04  1:08     ` [PATCH v4 4/6] ci: refactor docker runner script Đoàn Trần Công Danh
2020-04-04  1:08     ` [PATCH v4 5/6] ci/linux32: libify install-dependencies step Đoàn Trần Công Danh
2020-04-04  1:08     ` [PATCH v4 6/6] travis: build and test on Linux with musl libc and busybox Đoàn Trần Công Danh
2020-04-05 20:39     ` [PATCH v4 0/6] Travis jobs for linux with musl libc Junio C Hamano
2020-04-07 14:55       ` Johannes Schindelin
2020-04-07 19:25         ` Junio C Hamano

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