From: Jeff King <peff@peff.net>
To: Dakota Hawkins <dakota@dakotahawkins.com>
Cc: Git <git@vger.kernel.org>
Subject: Re: .gitattributes override behavior (possible bug, or documentation bug)
Date: Tue, 20 Mar 2018 00:04:11 -0400 [thread overview]
Message-ID: <20180320040411.GB12938@sigill.intra.peff.net> (raw)
In-Reply-To: <CAHnyXxRcwq40W4tKm=Kscrsnb77yh7=eGDE=r5AZq073MPX9AQ@mail.gmail.com>
On Mon, Mar 19, 2018 at 11:10:26PM -0400, Dakota Hawkins wrote:
> > As you noted below, that second line does not match your path, because
> > attributes on a directory aren't applied recursively. And it has nothing
> > to do with overriding. If you remove the png line entirely, you can see
> > that we still do not match it. You need to use "*" to match the paths.
>
> Ah, yes, I see that. Inconsistent with .gitignore (more below), right?
Yes, it is.
> > I could not find anything useful in gitattributes(5). There's some old
> > discussion here:
> >
> > https://public-inbox.org/git/slrnkldd3g.1l4.jan@majutsushi.net/
>
> If I follow that correctly: There's some initial speculation that it
> would be OK to apply the attributes recursively, which is then shot
> down because it wasn't designed to be recursive (though I don't see a
> different, technical reason for that), followed by finding a (this
> same?) solution/workaround for the original problem. Is that about
> right?
Right. The technical reason is mostly "that is not how it was designed,
and it would possibly break some corner cases if we switched it now".
> > I think just "/.readme-docs/**" should be sufficient for your case. You
> > could also probably write "*" inside ".readme-docs/.gitattributes",
> > which may be simpler (you don't need "**" there because patterns without
> > a slash are just matched directly against the basename).
>
> Wouldn't that make the "*" inside ".readme-docs/.gitattributes",
> technically recursive when "*" matches a directory?
Sort of. The pattern is applied recursively to each basename, but the
pattern itself does not match recursively. That's probably splitting
hairs, though. :)
> It's always seemed to me that both were necessary to explicitly match
> things in a directory and its subdirectories (example, IIRC: "git
> ls-files -- .gitattributes" vs "git ls-files -- .gitattributes
> **/.gitattributes"). Maybe that example is peculiar in that its a
> dotfile and can't have a wildcard before the dot?
Those are pathspecs, which are not quite the same as gitattributes. They
don't do the magic basename matching.
For pathspecs a "*" matches across slashes, which is what allows "git
log -- '*.h'" to work (but not a suffix wildcard like 'foo*').
> I guess my takeaway is that it would be _good_ if the gitattributes
> documentation contained the caveat about not matching directories
> recursively, but _great_ if gitattributes and gitignore (and whatever
> else there is) were consistent.
I agree it would be nice if they were consistent (and pathspecs, too).
But unfortunately at this point there's a maze of backwards
compatibility to deal with.
-Peff
next prev parent reply other threads:[~2018-03-20 4:04 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-20 1:49 .gitattributes override behavior (possible bug, or documentation bug) 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 [this message]
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
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180320040411.GB12938@sigill.intra.peff.net \
--to=peff@peff.net \
--cc=dakota@dakotahawkins.com \
--cc=git@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).