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From: Ben Peart <peartben@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: Elijah Newren <newren@gmail.com>,
	Ben Peart <Ben.Peart@microsoft.com>,
	"git@vger.kernel.org" <git@vger.kernel.org>,
	"peff@peff.net" <peff@peff.net>,
	"pclouds@gmail.com" <pclouds@gmail.com>,
	"vmiklos@frugalware.org" <vmiklos@frugalware.org>,
	Kevin Willford <kewillf@microsoft.com>,
	"Johannes.Schindelin@gmx.de" <Johannes.Schindelin@gmx.de>
Subject: Re: [PATCH v1 2/2] merge: Add merge.aggressive config setting
Date: Wed, 25 Apr 2018 10:47:11 -0400	[thread overview]
Message-ID: <87cb6954-05ee-1e9c-43ec-30157b6e08f5@gmail.com> (raw)
In-Reply-To: <xmqqlgdc5fa2.fsf@gitster-ct.c.googlers.com>



On 4/24/2018 7:57 PM, Junio C Hamano wrote:
> Ben Peart <peartben@gmail.com> writes:
> 
>> That said, it makes sense to me to do
>>> this when rename detection is turned off.  In fact, I think you'd
>>> automatically want to set aggressive to true whenever rename detection
>>> is turned off (whether by your merge.renames option or the
>>> -Xno-renames flag).
>>> ...
>>
>> While combining them would work for our specific use scenario (since
>> we turn both on already along with turning off merge.stat), I really
>> hesitate to tie these two different flags and code paths together with
>> a single config setting.
> 
> The cases that non-agressive variant leaves unmerged are not
> auto-resolved only because marking them as merged will rob the
> chance from the rename detection logic to notice which ones are
> "new" paths that could be matched with "deleted" ones to turn into
> renames.  If rename deteciton is not done, there is no reason to
> leave it non aggressive, as "#1 = missing, #2 = something and #3 =
> missing" entry (just one example that is not auto-resolved by
> non-agressive, but the principle is the same) left unmerged in the
> index will get resolved to keep the current entry by the post
> processing logic anyway.
> 
> In fact, checking git-merge-resolve would tell us that we already
> use "aggresive" variant there unconditionally.
> 
> So, I think Elijah is correct---there is no reason not to enable
> this setting when the other one to refuse rename detection is in
> effect.
> 

Thank you. I understand this description and it make sense to me.  I'm 
unfamiliar with the merge code so have to rely on you who are the 
experts for a sanity check.

I will remove the separate merge.aggressive config setting and instead, 
set the aggressive flag when the renames is turned off (whether by the 
new merge.renames setting or by the -Xno-renames flag) as Elijah suggests.

  reply	other threads:[~2018-04-25 14:47 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-20 13:36 [PATCH v1 0/2] add additional config settings for merge Ben Peart
2018-04-20 13:36 ` [PATCH v1 1/2] merge: Add merge.renames config setting Ben Peart
2018-04-20 17:02   ` Elijah Newren
2018-04-20 17:26     ` Elijah Newren
2018-04-23 12:57       ` Ben Peart
2018-04-20 17:59     ` Ben Peart
2018-04-20 18:34       ` Elijah Newren
2018-04-21  4:23         ` Junio C Hamano
2018-04-23 16:00           ` Ben Peart
2018-04-23 23:23             ` Junio C Hamano
2018-04-24 11:58               ` Johannes Schindelin
2018-04-24 17:47                 ` Elijah Newren
2018-04-25  8:20                   ` Johannes Schindelin
2018-04-22 12:07         ` Eckhard Maaß
2018-04-23 13:15           ` Ben Peart
2018-04-23 21:32             ` Eckhard Maaß
2018-04-24 16:53               ` Ben Peart
2018-04-23 13:22         ` Ben Peart
2018-04-20 13:36 ` [PATCH v1 2/2] merge: Add merge.aggressive " Ben Peart
2018-04-20 17:22   ` Elijah Newren
2018-04-24 16:45     ` Ben Peart
2018-04-24 17:36       ` Elijah Newren
2018-04-24 23:57       ` Junio C Hamano
2018-04-25 14:47         ` Ben Peart [this message]
2018-04-20 17:34 ` [PATCH v1 0/2] add additional config settings for merge Elijah Newren
2018-04-20 18:19   ` Ben Peart
2018-04-24 17:11 ` [PATCH v2 " Ben Peart
2018-04-24 17:11   ` [PATCH v2 1/2] merge: Add merge.renames config setting Ben Peart
2018-04-24 18:11     ` Elijah Newren
2018-04-24 18:59     ` Elijah Newren
2018-04-24 20:31       ` Ben Peart
2018-04-25 16:01         ` Elijah Newren
2018-04-24 17:11   ` [PATCH v2 2/2] merge: Add merge.aggressive " Ben Peart
2018-04-25  0:13   ` [PATCH v2 0/2] add additional config settings for merge Junio C Hamano
2018-04-25 15:22     ` Ben Peart
2018-04-26  1:48       ` Junio C Hamano
2018-04-26 20:52 ` [PATCH v3 0/3] add merge.renames config setting Ben Peart
2018-04-26 20:52   ` [PATCH v3 1/3] merge: update documentation for {merge,diff}.renameLimit Ben Peart
2018-04-26 23:11     ` Elijah Newren
2018-04-26 23:23       ` Jonathan Tan
2018-04-26 20:52   ` [PATCH v3 2/3] merge: Add merge.renames config setting Ben Peart
2018-04-26 22:52     ` Elijah Newren
2018-04-27  0:54       ` Ben Peart
2018-04-27  2:23         ` Junio C Hamano
2018-04-27  3:28           ` Elijah Newren
2018-04-27  7:23             ` Johannes Schindelin
2018-04-27 14:32               ` Elijah Newren
2018-04-27 18:37           ` Eckhard Maaß
2018-04-27 20:23             ` Elijah Newren
2018-04-30  8:03               ` Eckhard Maaß
2018-04-30 16:54                 ` Elijah Newren
2018-04-27  4:17         ` Elijah Newren
2018-04-27 18:19         ` Elijah Newren
2018-04-30 13:11           ` Ben Peart
2018-04-30 16:12             ` Re: Elijah Newren
2018-05-02 14:33               ` Re: Ben Peart
2018-04-26 20:52   ` [PATCH v3 3/3] merge: pass aggressive when rename detection is turned off Ben Peart
2018-04-26 23:00     ` Elijah Newren
2018-04-26 22:08   ` [PATCH v3 0/3] add merge.renames config setting Elijah Newren
2018-05-02 16:01 ` [PATCH v4 0/3] add additional config settings for merge Ben Peart
2018-05-02 16:01   ` [PATCH v4 1/3] merge: update documentation for {merge,diff}.renameLimit Ben Peart
2018-05-02 16:01   ` [PATCH v4 2/3] merge: Add merge.renames config setting Ben Peart
2018-05-04  3:07     ` Junio C Hamano
2018-05-02 16:01   ` [PATCH v4 3/3] merge: pass aggressive when rename detection is turned off Ben Peart
2018-05-02 17:20   ` [PATCH v4 0/3] add additional config settings for merge Elijah Newren

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