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From: Duy Nguyen <pclouds@gmail.com>
To: per.lundberg@hibox.tv
Cc: "brian m. carlson" <sandals@crustytoothpaste.net>,
	"Git Mailing List" <git@vger.kernel.org>,
	jost@tcs.ifi.lmu.de, "Joshua Jensen" <jjensen@workspacewhiz.com>,
	"Junio C Hamano" <gitster@pobox.com>,
	git@matthieu-moy.fr, "Clemens Buchacher" <drizzd@gmx.net>,
	"Holger Hellmuth (IKS)" <hellmuth@ira.uka.de>,
	"Kevin Ballard" <kevin@sb.org>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: Re: [RFC PATCH] Introduce "precious" file concept
Date: Mon, 26 Nov 2018 16:26:54 +0100	[thread overview]
Message-ID: <CACsJy8AzmgkCm=_pJpcXY4xwujnfx9vFKJgbJ_BB__4UybACTQ@mail.gmail.com> (raw)
In-Reply-To: <280aa9c3-0b67-c992-1a79-fc87bbc74906@hibox.tv>

On Mon, Nov 26, 2018 at 10:30 AM Per Lundberg <per.lundberg@hibox.tv> wrote:
>
> On 11/13/18 1:22 AM, brian m. carlson wrote:
> > This is going to totally hose automation.  My last job had files which
> > might move from tracked to untracked (a file that had become generated),
> > and long-running CI and build systems would need to be able to check out
> > one status and switch to the other.  Your proposed change will prevent
> > those systems from working, whereas they previously did.
> >
> > I agree that your proposal would have been a better design originally,
> > but breaking the way automated systems currently work is probably going
> > to be a dealbreaker.
>
> How about something like this:
>
> 1. Introduce a concept with "garbage" files, which git is "permitted to
> delete" without prompting.
>
> 2. Retain the current default, i.e. "ignored files are garbage" for now,
> making the new behavior _opt in_ to avoid breaking automated
> systems/existing scripts for anyone. Put the setting for this behind a
> new core.* config flag.
>
> 3. In the plan for version 3.0 (a new major version where some breakage
> can be tolerable, according to Semantic Versioning), change the default
> so that "only explicit garbage is garbage". Include very clear notices
> of this in the release notes. The config flag is retained, but its
> default changes from true->false or vice versa. People who dislike the
> new behavior can easily change back to the 2.x semantics.

How does this garbage thing interact with "git clean -x"? My
interpretation of this flag/attribute is that at version 3.0 by
default all ignored files are _not_ garbage, so "git clean -x" should
not remove any of them. Which is weird because most of ignored files
are like *.o that should be removed.

I also need to mark "precious" on untracked or even tracked files (*).
Not sure how this "garbage" attribute interacts with that.

(*) I was hoping I could get the idea [1] implemented in somewhat good
shape before presenting here. But I'm a bit slow on that front. So
yeah this "precious" on untracked/tracked thingy may be even
irrelevant if the patch series will be rejected.

[1] https://public-inbox.org/git/CACsJy8C3rOFv0kQeJrWufQQzbnfU4mSxJtphEYBGMmrroFFN-A@mail.gmail.com/

> Would this be a reasonable compromise for everybody?
-- 
Duy

  parent reply	other threads:[~2018-11-26 15:27 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-17  5:21 git merge, .gitignore, and silently overwriting untracked files Joshua Jensen
2010-08-17 19:33 ` Junio C Hamano
2010-08-18 23:39   ` [PATCH] optionally disable overwriting of ignored files Clemens Buchacher
2010-08-19 10:41     ` Jakub Narebski
2010-08-20 18:48       ` Clemens Buchacher
2010-08-20 19:01         ` Joshua Jensen
2010-08-20 20:35     ` Junio C Hamano
2010-08-21  8:05       ` Clemens Buchacher
2010-08-22  7:25         ` Junio C Hamano
2010-08-22  8:20           ` Clemens Buchacher
2010-10-09 22:39         ` Kevin Ballard
2010-08-21 13:23       ` Clemens Buchacher
2010-10-09 13:52       ` [PATCH 0/5] do not overwrite untracked files in leading path Clemens Buchacher
2010-10-09 13:52       ` [PATCH 1/5] t7607: use test_commit and test_must_fail Clemens Buchacher
2010-10-10  6:35         ` Jonathan Nieder
2010-10-10  8:35           ` [PATCH 1/5 v2] t7607: use test-lib functions and check MERGE_HEAD Clemens Buchacher
2010-10-13 21:33             ` Junio C Hamano
2010-10-13 21:59             ` Junio C Hamano
2010-10-09 13:52       ` [PATCH 2/5] t7607: add leading-path tests Clemens Buchacher
2010-10-09 19:14         ` Johannes Sixt
2010-10-10  8:38           ` [PATCH 2/5 v2] " Clemens Buchacher
2010-10-09 13:52       ` [PATCH 3/5] add function check_ok_to_remove() Clemens Buchacher
2010-10-13 21:43         ` Junio C Hamano
2010-10-09 13:52       ` [PATCH 4/5] lstat_cache: optionally return match_len Clemens Buchacher
2010-10-09 13:53       ` [PATCH 5/5] do not overwrite files in leading path Clemens Buchacher
2010-10-13 21:57         ` Junio C Hamano
2010-10-13 22:34           ` Clemens Buchacher
2010-10-15  6:48             ` Clemens Buchacher
2010-10-15 18:47               ` Junio C Hamano
2010-08-20 20:46     ` [PATCH] optionally disable overwriting of ignored files Junio C Hamano
2010-08-21  6:48       ` [PATCH v2] " Clemens Buchacher
2010-08-23  8:33     ` [PATCH] " Matthieu Moy
2010-08-31 18:44       ` Heiko Voigt
2010-08-23  9:37     ` Matthieu Moy
2010-08-23 13:56       ` Holger Hellmuth
2010-08-23 15:11         ` Clemens Buchacher
2010-08-23 15:57           ` Junio C Hamano
2010-08-24  7:28             ` Clemens Buchacher
2010-08-24 16:19               ` Junio C Hamano
2018-10-16  9:10       ` Ignored files being silently overwritten when switching branches Ævar Arnfjörð Bjarmason
2018-10-16 15:05         ` Duy Nguyen
2018-10-18  1:55           ` Junio C Hamano
2018-11-06 15:12 ` Checkout deleted semi-untracked file Ævar Arnfjörð Bjarmason
2018-11-11  9:52   ` [RFC PATCH] Introduce "precious" file concept Nguyễn Thái Ngọc Duy
2018-11-11 12:15     ` Bert Wesarg
2018-11-11 12:59     ` Junio C Hamano
2018-11-26 19:38     ` [PATCH v2 0/2] Precios files round two Nguyễn Thái Ngọc Duy
2018-11-26 19:38       ` [PATCH v2 1/2] Introduce "precious" file concept Nguyễn Thái Ngọc Duy
2018-11-26 19:38       ` [PATCH v2 2/2] unpack-trees: support core.allIgnoredFilesArePreciousWhenMerging Nguyễn Thái Ngọc Duy
2018-11-11 12:33   ` [RFC PATCH] Introduce "precious" file concept Ævar Arnfjörð Bjarmason
2018-11-11 13:06     ` Ævar Arnfjörð Bjarmason
2018-11-12 16:14       ` Duy Nguyen
2018-11-11 15:41     ` Duy Nguyen
2018-11-11 16:55       ` Ævar Arnfjörð Bjarmason
2018-11-12  7:35       ` Per Lundberg
2018-11-12  9:08         ` Matthieu Moy
2018-11-12  9:49           ` Ævar Arnfjörð Bjarmason
2018-11-12 10:26             ` Junio C Hamano
2018-11-12 12:45               ` Ævar Arnfjörð Bjarmason
2018-11-12 13:02                 ` Junio C Hamano
2018-11-12 16:07           ` Duy Nguyen
2018-11-12 23:22     ` brian m. carlson
2018-11-26  9:30       ` Per Lundberg
2018-11-26 10:28         ` Ævar Arnfjörð Bjarmason
2018-11-26 12:49         ` Junio C Hamano
2018-11-27 15:08           ` Ævar Arnfjörð Bjarmason
2018-11-28  3:58             ` Junio C Hamano
2018-11-28 21:54               ` Ævar Arnfjörð Bjarmason
2018-11-29  5:04                 ` Junio C Hamano
2018-12-01  6:21                 ` Duy Nguyen
2018-11-26 15:26         ` Duy Nguyen [this message]
2018-11-26 15:34           ` Ævar Arnfjörð Bjarmason
2018-11-26 15:40             ` Duy Nguyen
2018-11-26 15:47               ` Ævar Arnfjörð Bjarmason
2018-11-26 15:55                 ` Duy Nguyen
2018-11-27  9:43                   ` Per Lundberg
2018-11-27 12:55                     ` Jacob Keller
2018-11-27 14:50                       ` Per Lundberg
2018-11-28  1:21                         ` brian m. carlson
2018-11-28  6:54                           ` Per Lundberg
2018-11-27 15:19                       ` Duy Nguyen
2018-12-06 18:39                       ` Duy Nguyen
2018-11-26 16:02       ` Eckhard Maaß
  -- strict thread matches above, loose matches on Subject: below --
2018-10-15 13:01 Ignored files being silently overwritten when switching branches Per Lundberg
2018-10-16  6:40 ` Jeff King
2018-11-06 12:41 Checkout deleted semi-untracked file Steffen Jost

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