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From: Julien '_FrnchFrgg_' RIVAUD <frnchfrgg@free.fr>
To: Richard Biener <richard.guenther@gmail.com>,
	gcc@gcc.gnu.org, Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: Proposal for the transition timetable for the move to GIT
Date: Sun, 29 Dec 2019 11:47:00 -0000	[thread overview]
Message-ID: <4d9a2e34-eb6d-f110-e974-d9ddffe681df@free.fr> (raw)
In-Reply-To: <0DAF74B5-1F78-4871-B720-993341A9030D@gmail.com>

Le 29/12/2019 à 12:02, Richard Biener a écrit :
> On December 29, 2019 11:41:00 AM GMT+01:00, Segher Boessenkool <segher@kernel.crashing.org> wrote:
>> On Sun, Dec 29, 2019 at 02:40:45AM +0100, Julien FrnchFrgg Rivaud
>> wrote:
>>>> Oh, I'm not talking about historical merges.  I'm saying we
>> shouldn't do
>>>> future merges, where we can help that.  It disagrees with our
>> documented
>>>> "submitting patches" protocol.
>>> I don't see how that can be correct. Linux is heavily "submitting
>>> patches" based, with stringent reviews on LKML, yet heavily uses
>> merges.
>>
>> Linux has most development done in separate trees, one for each
>> maintainer.
>> That is not how GCC works.
>>
>> I was talking about https://gcc.gnu.org/contribute.html , see heading
>> "submitting patches" :-)
>>
>>>> Nothing should ever be flattened to a single commit.  But before
>> patches
>>>> hit trunk, the patch series can be made nicer than it was at the
>> start
>>>> of its development.
>>> I quite agree with that, and it resonates with my TL;DR chunk of text
>> above.
>>
>> Yup.  Rebasing is superior to merging in many ways.  Merging is
>> appropriate
>> if there is parallel development of (mostly) independent things.
>> Features
>> aren't that, usually: they can be rebased easily, and they should be
>> posted
>> for review anyway.
>>
>> It is very easy to use merges more often than is useful, and it hurts.
> For bisecting trunk a merge would be a single commit, right?
Not exactly. It will if the bug was not introduced by the merge, but if 
so then "git bisect" will start looking at individual commits in the 
branch, which is IMHO very good. It is far easier to have a bug pinned 
to a single change (or say 5-6 commits, if all were not buildable or 
testable), than a whole branch. At worst, no commit is testable in the 
branch except the last, and git will say that the bug was introduced in 
the branch, which is not worse that what you'd get without a merge commit.

Julien

  reply	other threads:[~2019-12-29 11:47 UTC|newest]

Thread overview: 198+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-17 12:02 Richard Earnshaw (lists)
2019-09-17 12:24 ` Richard Biener
2019-09-17 13:50   ` Richard Earnshaw (lists)
2019-09-17 16:35   ` Joseph Myers
2019-09-17 17:51     ` Richard Earnshaw (lists)
2019-09-17 16:33 ` Joseph Myers
2019-09-19 12:04 ` Janne Blomqvist
2019-09-19 14:43   ` Damian Rouson
2019-09-19 15:30     ` Janne Blomqvist
2019-10-25 14:10     ` Richard Earnshaw (lists)
2019-10-25 16:32       ` Jeff Law
2019-09-19 15:30   ` Richard Earnshaw (lists)
2019-09-19 15:49     ` Damian Rouson
2019-09-19 15:35 ` Maxim Kuvyrkov
2019-12-06 14:44   ` Maxim Kuvyrkov
2019-12-06 17:21     ` Eric S. Raymond
2019-12-06 17:39       ` Richard Biener
2019-12-06 19:46         ` Eric S. Raymond
2019-12-06 20:43           ` Sandra Loosemore
2019-12-07  2:57           ` Segher Boessenkool
2019-12-09 18:19           ` Joseph Myers
2019-12-09 18:40             ` Bernd Schmidt
2019-12-09 20:45               ` Joseph Myers
2019-12-09 22:12               ` Eric S. Raymond
2019-12-09 19:28             ` Eric S. Raymond
2019-12-11 14:40             ` Maxim Kuvyrkov
2019-12-11 15:03               ` Richard Earnshaw (lists)
2019-12-11 15:19                 ` Jonathan Wakely
2019-12-11 15:21                   ` Richard Earnshaw (lists)
2019-12-11 15:36                     ` Joseph Myers
2019-12-11 16:02                       ` Jonathan Wakely
2019-12-11 17:47                         ` Eric S. Raymond
2019-12-16  2:19                       ` Joseph Myers
2019-12-11 15:30                   ` Dennis Luehring
2019-12-11 15:36                     ` Richard Earnshaw
2019-12-11 17:36                   ` Eric S. Raymond
2019-12-06 20:49       ` Bernd Schmidt
2019-12-16  9:53     ` Mark Wielaard
2019-12-16 11:29       ` Joseph Myers
2019-12-16 12:43         ` Mark Wielaard
2019-12-16 13:36           ` Segher Boessenkool
2019-12-16 13:54             ` Eric S. Raymond
2019-12-16 14:05               ` Segher Boessenkool
2019-12-16 14:13                 ` Joseph Myers
2019-12-16 15:37                   ` Segher Boessenkool
2019-12-16 16:36                     ` Joseph Myers
2019-12-16 17:40                     ` Jeff Law
2019-12-25  8:12                       ` Alexandre Oliva
2019-12-25 12:07                         ` Eric S. Raymond
2019-12-25 12:24                           ` Segher Boessenkool
2019-12-25 14:16                             ` Joseph Myers
2019-12-25 18:50                             ` Eric S. Raymond
2019-12-25 19:18                               ` Segher Boessenkool
2019-12-26  6:09                           ` Alexandre Oliva
2019-12-26 11:04                             ` Joseph Myers
2019-12-26 11:17                               ` Jakub Jelinek
2019-12-26 12:10                                 ` Joseph Myers
2019-12-26 16:11                                 ` Maxim Kuvyrkov
2019-12-26 16:58                                   ` Joseph Myers
2019-12-26 18:36                                     ` Jakub Jelinek
2019-12-26 18:59                                       ` Joseph Myers
2019-12-27 11:21                                         ` Richard Earnshaw (lists)
2019-12-27 11:33                                           ` Andrew Pinski
2019-12-27 13:35                                             ` Segher Boessenkool
2019-12-27 11:35                                           ` Joseph Myers
2019-12-27 12:37                                             ` Richard Earnshaw (lists)
2019-12-28  2:27                                               ` Eric S. Raymond
2019-12-28 11:23                                                 ` Joseph Myers
2019-12-28 12:19                                             ` Segher Boessenkool
2019-12-28 17:11                                               ` Richard Earnshaw (lists)
2019-12-28 20:28                                                 ` Segher Boessenkool
2019-12-29  1:45                                                   ` Julien "FrnchFrgg" Rivaud
2019-12-29 10:41                                                     ` Segher Boessenkool
2019-12-29 11:02                                                       ` Richard Biener
2019-12-29 11:47                                                         ` Julien '_FrnchFrgg_' RIVAUD [this message]
2019-12-29 13:31                                                           ` Segher Boessenkool
2019-12-29 13:51                                                             ` Julien '_FrnchFrgg_' RIVAUD
2019-12-29 12:15                                                         ` Segher Boessenkool
2019-12-29 16:32                                                           ` Richard Earnshaw
2019-12-29 16:37                                                             ` Julien '_FrnchFrgg_' RIVAUD
2019-12-29 11:42                                                       ` Julien '_FrnchFrgg_' RIVAUD
2019-12-29 13:26                                                         ` Segher Boessenkool
2019-12-29 13:48                                                           ` Julien '_FrnchFrgg_' RIVAUD
2019-12-29 15:01                                                             ` Segher Boessenkool
2019-12-29 17:31                                                             ` Ian Lance Taylor via gcc
2019-12-30  0:31                                                               ` Julien "FrnchFrgg" Rivaud
2019-12-29 21:31                                                           ` Thomas Koenig
2019-12-29 23:57                                                             ` Jeff Law
2019-12-27 13:29                                           ` Segher Boessenkool
2019-12-26 20:31                                     ` Richard Biener
2019-12-27  1:32                                     ` Joseph Myers
2019-12-27 10:14                                       ` Maxim Kuvyrkov
2019-12-28  1:55                                         ` Eric S. Raymond
2019-12-29 18:31                                   ` Maxim Kuvyrkov
2019-12-29 18:55                                     ` Joseph Myers
2019-12-29 22:47                                       ` Eric S. Raymond
2019-12-29 23:00                                         ` Joseph Myers
2019-12-29 23:13                                           ` Segher Boessenkool
2019-12-30 15:36                                             ` Richard Earnshaw (lists)
2019-12-30 22:37                                               ` Segher Boessenkool
2019-12-30 22:58                                                 ` Joseph Myers
2019-12-31  0:23                                                   ` Segher Boessenkool
2019-12-31 12:48                                                     ` Segher Boessenkool
2019-12-31  3:09                                                   ` Eric S. Raymond
2019-12-29 22:24                                     ` Richard Earnshaw (lists)
2019-12-30  0:18                                       ` Joseph Myers
2019-12-30  0:44                                         ` Julien "FrnchFrgg" Rivaud
2019-12-30 12:39                                         ` Maxim Kuvyrkov
2019-12-30 13:01                                       ` Maxim Kuvyrkov
2019-12-30 15:31                                         ` Richard Earnshaw (lists)
2019-12-30 15:49                                           ` Maxim Kuvyrkov
2019-12-30 16:08                                             ` Richard Earnshaw (lists)
2020-01-02  2:59                                               ` Alexandre Oliva
2020-01-02 10:58                                                 ` Richard Earnshaw (lists)
2020-01-08 20:46                                               ` Maxim Kuvyrkov
2020-01-08 22:11                                                 ` Eric S. Raymond
2020-01-08 23:34                                                   ` Joseph Myers
2020-01-09  2:38                                                     ` Segher Boessenkool
2020-01-09 12:12                                                       ` Richard Earnshaw (lists)
2020-01-09 14:01                                                         ` Eric S. Raymond
2020-01-11 11:30                                                         ` Segher Boessenkool
2020-01-10  7:33                                                       ` Maxim Kuvyrkov
2020-01-10  9:49                                                         ` Richard Earnshaw (lists)
2020-01-10 11:38                                                           ` Richard Biener
2020-01-10 12:09                                                             ` Iain Sandoe
2020-01-10 13:11                                                               ` Joseph Myers
2020-01-10 12:53                                                             ` Nathan Sidwell
2020-01-10 14:13                                                               ` Martin Liška
2020-01-11 11:57                                                             ` Segher Boessenkool
2020-01-11 11:52                                                           ` Segher Boessenkool
2020-01-10 13:31                                                         ` Bernd Schmidt
2020-01-10 15:27                                                           ` Eric S. Raymond
2020-01-10 15:09                                                         ` Maxim Kuvyrkov
2020-01-10 15:16                                                           ` Joseph Myers
2020-01-10 15:33                                                             ` Maxim Kuvyrkov
2020-01-11  7:04                                                               ` Gerald Pfeifer
2020-01-09  5:07                                                     ` Jeff Law
2020-01-09 12:30                                                       ` Joseph Myers
2020-01-10 15:27                                                         ` Joseph Myers
2020-01-11  7:06                                                         ` Gerald Pfeifer
2020-01-14  8:21                                                         ` Jeff Law
2019-12-26 22:33                                 ` Joseph Myers
2019-12-26 19:16                             ` Eric S. Raymond
2019-12-26 20:08                               ` Alexandre Oliva
2019-12-26 20:28                                 ` Joseph Myers
2019-12-27 12:06                                   ` Alexandre Oliva
2019-12-27 12:21                                     ` Joseph Myers
2019-12-28  2:33                                       ` Eric S. Raymond
2019-12-26 21:19                                 ` Eric S. Raymond
2019-12-25 12:10                         ` Segher Boessenkool
2019-12-25 14:13                           ` Joseph Myers
2019-12-29 16:47                           ` Mark Wielaard
2019-12-29 22:42                             ` Joseph Myers
2019-12-16 16:27                   ` Eric S. Raymond
2019-12-16 16:47                     ` Segher Boessenkool
2019-12-16 16:04               ` Jeff Law
2019-12-16 16:37                 ` Eric S. Raymond
2019-12-16 16:47                   ` Jeff Law
2019-12-31 13:43                     ` Joseph Myers
2019-12-31 14:13                       ` Richard Earnshaw (lists)
2019-12-31 17:26                       ` Segher Boessenkool
2019-12-16 13:56             ` Joseph Myers
2019-12-16 14:17               ` Mark Wielaard
2019-12-16 16:29                 ` Joseph Myers
2019-12-16 13:53           ` Joseph Myers
2019-12-16 16:39             ` Jeff Law
2019-12-16 17:57               ` Richard Biener
2019-12-16 16:55         ` Jeff Law
2019-12-16 17:08           ` Joseph Myers
2019-12-16 19:15             ` Eric S. Raymond
2019-12-16 21:59             ` Segher Boessenkool
2019-12-16 22:14               ` Jeff Law
2019-12-16 22:42                 ` Segher Boessenkool
2019-12-16 23:26                   ` Joseph Myers
2019-12-16 23:44                     ` Eric S. Raymond
2019-12-18 18:07                   ` Jeff Law
2019-12-18 18:24                     ` Joseph Myers
2019-12-19  0:57                       ` Eric S. Raymond
2019-12-18 19:50                     ` Segher Boessenkool
2019-12-18 20:43                       ` Jeff Law
2019-12-20 16:28                         ` Segher Boessenkool
2019-12-19  2:34                       ` Unix philosopy vs. poor semantic locality Eric S. Raymond
2019-12-19  3:16                         ` Joseph Myers
2019-12-19  5:46                           ` Eric S. Raymond
2019-12-19  0:46                     ` Proposal for the transition timetable for the move to GIT Eric S. Raymond
2019-12-16 23:34                 ` Eric S. Raymond
2019-12-16 23:18               ` Joseph Myers
2019-12-16 23:19               ` Eric S. Raymond
2019-12-18 17:27                 ` Segher Boessenkool
2019-12-16 13:33       ` Segher Boessenkool
2019-09-19 17:04 ` Paul Koning
2019-10-25 14:02   ` Richard Earnshaw (lists)
2019-09-20 15:49 ` Jeff Law
2019-09-21  9:11   ` Segher Boessenkool
2019-09-21  9:39     ` Andreas Schwab
2019-09-21  9:51       ` Segher Boessenkool
2019-09-21 10:04         ` Andreas Schwab
2019-09-21  9:26 ` Segher Boessenkool

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