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From: Junio C Hamano <>
To: Derrick Stolee <>
Cc: Tim Renouf <>,,,
Subject: Re: [PATCH] unpack-trees: add core.sparseCheckoutRmFiles config
Date: Wed, 02 Jun 2021 11:32:53 +0900	[thread overview]
Message-ID: <xmqqmts9q9m2.fsf@gitster.g> (raw)
In-Reply-To: <> (Derrick Stolee's message of "Tue, 1 Jun 2021 22:00:50 -0400")

Derrick Stolee <> writes:

>> This commit adds the above config item, defaulting to "true" to get the
>> old behavior. Set it to "false" to avoid removing such a file from the
>> worktree.
> I don't think config is necessary here. This behavior is niche
> enough to create a behavior-breaking change. However, we do want
> to ensure that the full flow of eventually clearing the file when
> clean is handled.

I didn't have a chance to get around to commenting on the patch
(instead I was preparing for -rc3), but you covered pretty much
everything I wanted to say.  It is unusual for those who are using
sparse checkout to have a modified (=tracked and dirty) file that
shouldn't be there, and making sure the user notices these unusual
files, instead of silently losing the changes to them, is probably a

An explicit request to destructively overwrite the path ("git
restore -- path") or remove the working tree file along with
modification ("git reset --hard") is a good thing to have, but
the branch switching "git switch" is supposed to preserve local
modification (or fail to switch), whether the dirty path is inside
or outside the sparse checkout area.

> If we _are_ going to go with a config option, then I'm not a big
> fan of this name. I've also been thinking that the sparse-checkout
> config has been squatting in the "core.*" space too long. Perhaps
> it is time to create its own section?
> What about something like sparseCheckout.keepDirtyFiles, which
> defaults to false?

What about not having a configuration?

> 1. How does a user with a dirty, tracked, sparse file get back
>    into a state where that file is deleted? What commands do
>    they need to run? Can that be tested and added to the sparse-
>    checkout documentation?
> 2. What does 'git status' look like when a user is in this state?
>    Is that helpful?

Good points.


  reply	other threads:[~2021-06-02  2:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-28 20:14 bug report: git checkout deletes worktree file even though it is excluded by sparse-checkout Tim Renouf (open source)
2021-05-28 22:44 ` Elijah Newren
2021-06-01 18:31   ` [PATCH] unpack-trees: add core.sparseCheckoutRmFiles config Tim Renouf
2021-06-02  2:00     ` Derrick Stolee
2021-06-02  2:32       ` Junio C Hamano [this message]
2021-06-02  5:53         ` Elijah Newren
2021-06-02  6:13           ` Tim Renouf (open source)
2021-06-02 23:41             ` Elijah Newren
2021-06-05 15:33               ` Tim Renouf (open source)
2021-06-02  1:37 ` bug report: git checkout deletes worktree file even though it is excluded by sparse-checkout Derrick Stolee

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