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From: Dakota Hawkins <dakota@dakotahawkins.com>
To: Jeff King <peff@peff.net>
Cc: Duy Nguyen <pclouds@gmail.com>,
	Junio C Hamano <gitster@pobox.com>, Git <git@vger.kernel.org>
Subject: Re: .gitattributes override behavior (possible bug, or documentation bug)
Date: Wed, 21 Mar 2018 03:44:17 -0400	[thread overview]
Message-ID: <CAHnyXxRpRjyuTg9v-m9c4ZCwRTM2_4335m-yzFYqALBLAy8=+g@mail.gmail.com> (raw)
In-Reply-To: <CAHnyXxTf16ukf8CFSfzjQjTEjf5yJXFqK5TnS9KiXZEeAD7dgg@mail.gmail.com>

One extra note:

I was burned by this just a few hours ago in a new repo (but because
of this discussion I realized what the problem was pretty quickly).

In the top-level .gitignore I had

    build/
    ...
    !alpine/build/

where `build/` was a stock ignore line among hundreds that I blindly
pasted in there, and the exclusion was an attempt to exclude some
things that shouldn't have been ignored.

Even in the same file, the exclusion doesn't work. I had to change it to:

    build/*
    ...
    !alpine/build/

Good times :)

- Dakota

On Wed, Mar 21, 2018 at 3:36 AM, Dakota Hawkins
<dakota@dakotahawkins.com> wrote:
>> I think that ignoring all of /ignore-most/ is much more efficient, since
>> we don't have to enumerate the paths inside it at all (which is why the
>> current behavior works as it does).
>
> That's definitely true, but I wonder what the impact would be for most
> cases (even for most cases with large repos and larges sets of ignore
> files).
>
> Most of my .gitignore patterns weren't hand-written
> (https://www.gitignore.io/ is pretty neat), but there are a ton of
> patterns like `dir/`...
>
> I think if I were designing it from scratch and knew what I know now
> I'd probably argue that behavior should be declarative (`dir/*
> recurse=false` or something), but we can't really get there from here.
>
> At any rate, would it at least be a good idea to make the "trailing
> slash halts recursion, won't consider nested .gitignore files"
> explicit in the `.gitignore` doc? Unless I'm missing it, I don't think
> that behavior is called out (or at least not called out concisely/in
> one place). It looks like this is all there is:
>
>     "If the pattern ends with a slash, it is removed for the purpose
> of the following description, but it would only find a match with a
> directory. In other words, foo/ will match a directory foo and paths
> underneath it, but will not match a regular file or a symbolic link
> foo (this is consistent with the way how pathspec works in general in
> Git)."
>
> Also, I'm not sure what the "following description" is in "it is
> removed for the purpose of the following description". Is that trying
> to imply "excluded from the rest of the doc"?
>
> - Dakota

  reply	other threads:[~2018-03-21  7:44 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-20  1:49 Dakota Hawkins
2018-03-20  2:34 ` Jeff King
2018-03-20  3:10   ` Dakota Hawkins
2018-03-20  3:17     ` Dakota Hawkins
2018-03-20  4:12       ` Jeff King
2018-03-20  4:04     ` Jeff King
2018-03-20  4:14       ` [PATCH] doc/gitattributes: mention non-recursive behavior Jeff King
2018-03-20  4:28         ` Dakota Hawkins
2018-03-20 16:41         ` Duy Nguyen
2018-03-21  6:50           ` Jeff King
2018-03-21 16:16             ` Duy Nguyen
2018-03-23  9:12               ` Jeff King
2018-03-20  4:25       ` .gitattributes override behavior (possible bug, or documentation bug) Dakota Hawkins
2018-03-20  4:40         ` Jeff King
2018-03-20  4:49           ` Dakota Hawkins
2018-03-20 16:28           ` Duy Nguyen
2018-03-21  3:22             ` Dakota Hawkins
2018-03-21  6:52               ` Jeff King
2018-03-21  7:36                 ` Dakota Hawkins
2018-03-21  7:44                   ` Dakota Hawkins [this message]
2018-03-21  7:50                   ` Jeff King
2018-03-21  8:35                     ` Dakota Hawkins
2018-03-21  8:36                       ` Jeff King
2018-03-21 16:18                   ` Junio C Hamano
2018-03-21 16:07               ` Duy Nguyen
2018-03-20  3:33   ` Junio C Hamano
2018-03-20  3:40     ` Dakota Hawkins
2018-03-20  3:45     ` Jeff King

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