From: Junio C Hamano <gitster@pobox.com>
To: Duy Nguyen <pclouds@gmail.com>
Cc: Jeff King <peff@peff.net>, git@vger.kernel.org, avila.jn@gmail.com
Subject: Re: [PATCH 4/6] dir.c::match_pathname(): pay attention to the length of string parameters
Date: Fri, 29 Mar 2013 09:44:32 -0700 [thread overview]
Message-ID: <7vli96p34f.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <20130329130230.GA25861@lanh> (Duy Nguyen's message of "Fri, 29 Mar 2013 20:02:30 +0700")
Duy Nguyen <pclouds@gmail.com> writes:
>> So we would want to do any adjustment to the fix when we merge up to
>> maint.
>
> OK. Then Junio, you may need to resolve the conflict with something
> like this. Originally match_basename uses fnmatch, not wildmatch. But
> using wildmatch there too should be fine, now that both
> match_{base,path}name share fnmatch_icase_mem().
Thanks.
The result still smells somewhat funny, though.
fnmatch_icase_mem() is meant to be a wrapper of fnmatch_icase() for
counted strings and its matching semantics should be the same as
fnmatch_icase().
With the merge-fix, fnmatch_icase_mem() calls into wildmatch(), but
fnmatch_icase() still calls into fnmatch().
The latter's flags are meant to be taken from FNM_* family, but the
former takes flags from WM_* family of bits, no?
I think you are running with USE_WILDMATCH which may make the
differences harder to notice, but the name fnmatch_icase_mem() that
is not in the same family as fnmatch but is from the wildmatch()
family smells like an accident waiting to happen.
I tend to think in the longer term it may be a good idea to build
with USE_WILDMATCH unconditionally (we can lose compat/fnmatch), so
in the end this may not matter that much, but before that happens,
soon after we merge the regression fix with this merge-fix, we may
want to update the codebase as if we applied a series that were
based on 'maint' as you suggested, i.e. using raw wildmatch()
consistently in the match_{base,path}name() codepath.
Opinions?
>
> -- 8< --
> diff --git a/dir.c b/dir.c
> index 73a08af..84744df 100644
> --- a/dir.c
> +++ b/dir.c
> @@ -81,7 +81,9 @@ static int fnmatch_icase_mem(const char *pattern, int patternlen,
> use_str = str_buf.buf;
> }
>
> - match_status = fnmatch_icase(use_pat, use_str, flags);
> + if (ignore_case)
> + flags |= WM_CASEFOLD;
> + match_status = wildmatch(use_pat, use_str, flags, NULL);
>
> strbuf_release(&pat_buf);
> strbuf_release(&str_buf);
> @@ -564,7 +566,7 @@ int match_pathname(const char *pathname, int pathlen,
>
> return fnmatch_icase_mem(pattern, patternlen,
> name, namelen,
> - FNM_PATHNAME) == 0;
> + WM_PATHNAME) == 0;
> }
>
> /*
> -- 8< --
next prev parent reply other threads:[~2013-03-29 16:45 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
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 [this message]
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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