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From: Junio C Hamano <gitster@pobox.com>
To: Thomas Gummerer <t.gummerer@gmail.com>
Cc: git@vger.kernel.org, "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>,
	"Elijah Newren" <newren@gmail.com>
Subject: Re: [PATCH v2 8/8] checkout: introduce checkout.overlayMode config
Date: Wed, 02 Jan 2019 15:39:25 -0800
Message-ID: <xmqqo98yiq8i.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20181220134820.21810-9-t.gummerer@gmail.com> (Thomas Gummerer's message of "Thu, 20 Dec 2018 13:48:20 +0000")

Thomas Gummerer <t.gummerer@gmail.com> writes:

> In the previous patch we introduced a new no-overlay mode for git
> checkout.  Some users (such as the author of this commit) may want to
> have this mode turned on by default as it matches their mental model
> more closely.  Make that possible by introducing a new config option
> to that extend.
>
> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
> ---
>  Documentation/config/checkout.txt |  7 +++++++
>  builtin/checkout.c                |  8 +++++++-
>  t/t2025-checkout-no-overlay.sh    | 10 ++++++++++
>  3 files changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/config/checkout.txt b/Documentation/config/checkout.txt
> index c4118fa196..53f917e15e 100644
> --- a/Documentation/config/checkout.txt
> +++ b/Documentation/config/checkout.txt
> @@ -21,3 +21,10 @@ checkout.optimizeNewBranch::
>  	will not update the skip-worktree bit in the index nor add/remove
>  	files in the working directory to reflect the current sparse checkout
>  	settings nor will it show the local changes.
> +
> +checkout.overlayMode::
> +	In the default overlay mode files `git checkout` never
> +	removes files from the index or the working tree.

Technically the above "never removes" is incorrect.

	$ mv COPYING 1 && mkdir COPYING && mv 1 COPYING/COPYING
	$ git add COPYING
	$ git checkout HEAD COPYING

would remove COPYING/1 from the index and from the working tree to
make room.

Because I think that a bit of white lie like what you wrote would
help readers understand the key point of "overlay or not overlay"
better than an overly precise description of the reason why the
removal in the above three-liner case is the right thing to do, I
think the text in the patch is good enough at least for now, but I'd
mention it in case somebody else can think of a better phrasing to
covey the same key point without being technically incorrect.

Thanks.

  reply	other threads:[~2019-01-02 23:39 UTC|newest]

Thread overview: 115+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-09 20:04 [PATCH 0/8] introduce no-overlay and cached mode in git checkout Thomas Gummerer
2018-12-09 20:04 ` [PATCH 1/8] move worktree tests to t24* Thomas Gummerer
2018-12-10  3:48   ` Junio C Hamano
2018-12-10 15:32   ` Duy Nguyen
2018-12-11 21:50     ` Thomas Gummerer
2018-12-12 13:26       ` Eric Sunshine
2018-12-12 17:07         ` Duy Nguyen
2018-12-09 20:04 ` [PATCH 2/8] entry: factor out unlink_entry function Thomas Gummerer
2018-12-10 15:49   ` Duy Nguyen
2018-12-10 17:23     ` Elijah Newren
2018-12-10 17:27       ` Duy Nguyen
2018-12-11  2:23     ` Junio C Hamano
2018-12-20 13:36     ` Thomas Gummerer
2018-12-09 20:04 ` [PATCH 3/8] entry: support CE_WT_REMOVE flag in checkout_entry Thomas Gummerer
2018-12-10 15:58   ` Duy Nguyen
2018-12-11  2:28     ` Junio C Hamano
2018-12-12  6:16       ` Duy Nguyen
2018-12-12  7:36         ` Junio C Hamano
2018-12-10 17:49   ` Elijah Newren
2018-12-11 22:00     ` Thomas Gummerer
2018-12-09 20:04 ` [PATCH 4/8] read-cache: add invalidate parameter to remove_marked_cache_entries Thomas Gummerer
2018-12-10 16:08   ` Duy Nguyen
2018-12-10 18:09     ` Elijah Newren
2018-12-10 18:19       ` Duy Nguyen
2018-12-10 18:25         ` Elijah Newren
2018-12-10 18:33           ` Duy Nguyen
2018-12-10 18:47             ` Elijah Newren
2018-12-11 21:59       ` Thomas Gummerer
2018-12-11  2:42     ` Junio C Hamano
2018-12-09 20:04 ` [PATCH 5/8] checkout: introduce --{,no-}overlay option Thomas Gummerer
2018-12-10 16:42   ` Duy Nguyen
2018-12-11 22:42     ` Thomas Gummerer
2018-12-10 18:19   ` Elijah Newren
2018-12-11  3:07     ` Junio C Hamano
2018-12-11  6:04       ` Elijah Newren
2018-12-11 22:07       ` Thomas Gummerer
2018-12-09 20:04 ` [PATCH 6/8] checkout: add --cached option Thomas Gummerer
2018-12-10 16:49   ` Duy Nguyen
2018-12-11  3:13     ` Junio C Hamano
2018-12-11  6:12       ` Elijah Newren
2018-12-11 19:23         ` Duy Nguyen
2019-01-31  5:54           ` Duy Nguyen
2019-01-31 19:05             ` Junio C Hamano
2019-02-01  6:48               ` Duy Nguyen
2019-02-01 17:57                 ` Junio C Hamano
2019-02-02 10:57                   ` Duy Nguyen
2019-02-19  4:20                   ` Duy Nguyen
2019-02-19 14:42                     ` Elijah Newren
2019-02-19 14:57                       ` Duy Nguyen
2019-02-19 19:07                       ` Junio C Hamano
2019-02-19 22:24                         ` Elijah Newren
2019-02-19 22:36                           ` Junio C Hamano
2019-02-19 23:00                             ` Elijah Newren
2019-02-20  1:53                             ` Duy Nguyen
2019-02-19 19:02                     ` Junio C Hamano
2019-02-19 19:10                       ` Junio C Hamano
2019-02-19 22:04                         ` Elijah Newren
2019-02-19 22:29                           ` Junio C Hamano
2019-02-20  2:32                             ` Duy Nguyen
2019-02-20  3:52                           ` Duy Nguyen
2019-02-20  2:19                         ` Duy Nguyen
2019-02-19 22:13                       ` Elijah Newren
2019-02-19 22:33                         ` Junio C Hamano
2018-12-10 18:42   ` Elijah Newren
2018-12-11 22:18     ` Thomas Gummerer
2018-12-09 20:04 ` [PATCH 7/8] checkout: allow ignoring unmatched pathspec Thomas Gummerer
2018-12-10 16:51   ` Duy Nguyen
2018-12-11 22:23     ` Thomas Gummerer
2018-12-10 20:25   ` Elijah Newren
2018-12-11 22:36     ` Thomas Gummerer
2018-12-09 20:04 ` [PATCH 8/8] stash: use git checkout --no-overlay Thomas Gummerer
2018-12-10 20:26   ` Elijah Newren
2018-12-10  3:47 ` [PATCH 0/8] introduce no-overlay and cached mode in git checkout Junio C Hamano
2018-12-20  8:43   ` Thomas Gummerer
2018-12-10 17:06 ` Duy Nguyen
2018-12-10 17:18 ` Elijah Newren
2018-12-10 18:37   ` Duy Nguyen
2018-12-11 22:52   ` Thomas Gummerer
2018-12-12  7:28     ` Junio C Hamano
2018-12-20 13:48 ` [PATCH v2 0/8] introduce no-overlay " Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 1/8] move worktree tests to t24* Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 2/8] entry: factor out unlink_entry function Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 3/8] entry: support CE_WT_REMOVE flag in checkout_entry Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 4/8] read-cache: add invalidate parameter to remove_marked_cache_entries Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 5/8] checkout: clarify comment Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 6/8] checkout: factor out mark_cache_entry_for_checkout function Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 7/8] checkout: introduce --{,no-}overlay option Thomas Gummerer
2018-12-23  8:05     ` Duy Nguyen
2018-12-23  9:44       ` Eric Sunshine
2019-01-06 18:18         ` Thomas Gummerer
2018-12-20 13:48   ` [PATCH v2 8/8] checkout: introduce checkout.overlayMode config Thomas Gummerer
2019-01-02 23:39     ` Junio C Hamano [this message]
2019-01-06 18:32       ` Thomas Gummerer
2019-01-07 17:00         ` Junio C Hamano
2019-01-08 21:52   ` [PATCH v3 0/8] introduce no-overlay mode in git checkout Thomas Gummerer
2019-01-08 21:52     ` [PATCH v3 1/8] move worktree tests to t24* Thomas Gummerer
2019-01-08 21:52     ` [PATCH v3 2/8] entry: factor out unlink_entry function Thomas Gummerer
2019-01-08 21:52     ` [PATCH v3 3/8] entry: support CE_WT_REMOVE flag in checkout_entry Thomas Gummerer
2019-01-08 21:52     ` [PATCH v3 4/8] read-cache: add invalidate parameter to remove_marked_cache_entries Thomas Gummerer
2019-01-08 21:52     ` [PATCH v3 5/8] checkout: clarify comment Thomas Gummerer
2019-01-08 21:52     ` [PATCH v3 6/8] checkout: factor out mark_cache_entry_for_checkout function Thomas Gummerer
2019-01-08 21:52     ` [PATCH v3 7/8] checkout: introduce --{,no-}overlay option Thomas Gummerer
2019-01-22 23:53       ` Jonathan Nieder
2019-01-23 19:05         ` Junio C Hamano
2019-01-23 20:21         ` Thomas Gummerer
2019-01-23 20:47           ` Jonathan Nieder
2019-01-24 22:08             ` Thomas Gummerer
2019-01-23 21:08           ` Junio C Hamano
2019-01-24  1:12             ` Jonathan Nieder
2019-01-24 22:02               ` Thomas Gummerer
2019-01-24 23:02               ` Junio C Hamano
2019-01-25  2:26                 ` Jonathan Nieder
2019-01-25  9:24                   ` Duy Nguyen
2019-02-09 18:54               ` Philip Oakley
2019-01-08 21:52     ` [PATCH v3 8/8] checkout: introduce checkout.overlayMode config Thomas Gummerer

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