From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, pclouds@gmail.com, avila.jn@gmail.com
Subject: Re: [PATCH 3/4] attr.c::path_matches(): special case paths that end with a slash
Date: Tue, 26 Mar 2013 17:33:19 -0400 [thread overview]
Message-ID: <20130326213319.GA3058@sigill.intra.peff.net> (raw)
In-Reply-To: <20130326190558.GC26462@sigill.intra.peff.net>
On Tue, Mar 26, 2013 at 03:05:58PM -0400, Jeff King wrote:
> On Tue, Mar 26, 2013 at 11:39:30AM -0700, Junio C Hamano wrote:
>
> > A similar adjustment for match_pathname() might be needed, but I
> > didn't look into it.
>
> I notice that match_pathname takes _two_ lengths for the pattern: the
> nowildcardlen (called "prefix", and the full patternlen). But the first
> thing it does is:
>
> if (*pattern == '/') {
> pattern++;
> prefix--;
> }
>
> which seems obviously wrong, as patternlen should be dropped, too. But
> we do not seem to look at patternlen at all! I think we can drop the
> parameter totally.
>
> We do seem to use strncmp_icase through the rest of the function,
> though, which should be OK. The one exception is that we call fnmatch at
> the end. Should the allocation hack from the previous patch make its way
> into an "fnmatch_icase_bytes()" function, so we can use it here, too?
> And then when we have a more efficient solution, we can just plug it in
> there.
Hmm. match_pathname does have this:
/*
* baselen does not count the trailing slash. base[] may or
* may not end with a trailing slash though.
*/
if (pathlen < baselen + 1 ||
(baselen && pathname[baselen] != '/') ||
strncmp_icase(pathname, base, baselen))
return 0;
which seems to imply that the trailing slash is important here, and that
we should not drop it when passing the path to match_pathname. I'm
still trying to figure out exactly what it is that the extra slash check
is for, and whether it might not have the same problem.
-Peff
next prev parent reply other threads:[~2013-03-26 21:33 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-19 17:57 [regression?] trailing slash required in .gitattributes Jeff King
2013-03-19 18:10 ` Junio C Hamano
2013-03-19 18:10 ` Jeff King
2013-03-22 22:24 ` Jeff King
2013-03-22 23:08 ` Junio C Hamano
2013-03-23 8:39 ` Jeff King
2013-03-24 5:25 ` Junio C Hamano
2013-03-26 18:39 ` [PATCH 0/4] attribute regression fix for maint-1.8.1 and upward Junio C Hamano
2013-03-26 18:39 ` [PATCH 1/4] attr.c::path_matches(): the basename is part of the pathname Junio C Hamano
2013-03-26 18:49 ` Jeff King
2013-03-27 1:40 ` Duy Nguyen
2013-03-26 18:39 ` [PATCH 2/4] dir.c::match_basename(): pay attention to the length of string parameters Junio C Hamano
2013-03-26 18:55 ` Jeff King
2013-03-26 20:39 ` Jeff King
2013-03-26 20:49 ` Junio C Hamano
2013-03-26 21:29 ` Jeff King
2013-03-26 22:33 ` Junio C Hamano
2013-03-27 1:04 ` Jeff King
2013-03-26 18:39 ` [PATCH 3/4] attr.c::path_matches(): special case paths that end with a slash Junio C Hamano
2013-03-26 19:05 ` Jeff King
2013-03-26 21:33 ` Jeff King [this message]
2013-03-27 1:30 ` Duy Nguyen
2013-03-28 19:49 ` Jeff King
2013-03-26 18:39 ` [PATCH 4/4] make sure a pattern without trailing slash matches a directory Junio C Hamano
2013-03-26 19:08 ` Jeff King
2013-03-27 1:13 ` [PATCH 0/4] attribute regression fix for maint-1.8.1 and upward Duy Nguyen
2013-03-27 3:57 ` Junio C Hamano
2013-03-27 4:01 ` Duy Nguyen
2013-03-28 21:43 ` [PATCH v2 0/6] " Jeff King
2013-03-28 21:45 ` [PATCH 1/6] attr.c::path_matches(): the basename is part of the pathname Jeff King
2013-03-28 21:47 ` [PATCH 2/6] dir.c::match_basename(): pay attention to the length of string parameters Jeff King
2013-03-28 22:40 ` Jeff King
2013-03-28 22:49 ` Jeff King
2013-03-28 23:10 ` Junio C Hamano
2013-03-28 23:40 ` Duy Nguyen
2013-03-29 1:25 ` Duy Nguyen
2013-03-29 3:02 ` Jeff King
2013-03-29 5:57 ` Junio C Hamano
2013-03-28 21:47 ` [PATCH 3/6] dir.c::match_pathname(): adjust patternlen when shifting pattern Jeff King
2013-03-28 21:48 ` [PATCH 4/6] dir.c::match_pathname(): pay attention to the length of string parameters Jeff King
2013-03-28 22:30 ` Junio C Hamano
2013-03-29 8:45 ` Duy Nguyen
2013-03-29 10:03 ` Duy Nguyen
2013-03-29 11:32 ` Torsten Bögershausen
2013-03-29 11:37 ` Duy Nguyen
2013-03-29 12:05 ` Jeff King
2013-03-29 13:02 ` Duy Nguyen
2013-03-29 16:44 ` Junio C Hamano
2013-03-29 17:04 ` Jeff King
2013-03-29 17:35 ` Junio C Hamano
2013-03-29 17:44 ` Jeff King
2013-03-30 1:40 ` Duy Nguyen
2013-03-28 21:49 ` [PATCH 5/6] attr.c::path_matches(): special case paths that end with a slash Jeff King
2013-03-28 21:50 ` [PATCH 6/6] t: check that a pattern without trailing slash matches a directory Jeff King
2013-03-28 22:21 ` Eric Sunshine
2013-03-28 22:22 ` Jeff King
2013-03-23 4:18 ` [regression?] trailing slash required in .gitattributes Duy Nguyen
2013-03-23 4:43 ` Duy Nguyen
2013-03-25 6:05 ` [PATCH 0/4] attr directory matching regression Nguyễn Thái Ngọc Duy
2013-03-25 6:05 ` [PATCH 1/4] wildmatch: do not require "text" to be NUL-terminated Nguyễn Thái Ngọc Duy
2013-03-25 6:05 ` [PATCH 2/4] attr.c: fix pattern{,len} inconsistency in struct match_attr Nguyễn Thái Ngọc Duy
2013-03-25 6:05 ` [PATCH 3/4] dir.c: make match_{base,path}name respect {basename,path}len Nguyễn Thái Ngọc Duy
2013-03-25 6:05 ` [PATCH 4/4] attr.c: fix matching "subdir" without the trailing slash Nguyễn Thái Ngọc Duy
2013-03-25 7:20 ` Duy Nguyen
2013-03-25 9:24 ` Duy Nguyen
2013-03-26 15:10 ` [PATCH 0/4] attr directory matching regression Junio C Hamano
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