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From: Junio C Hamano <gitster@pobox.com>
To: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 05/19] tree_entry_interesting(): remove dependency on struct diff_options
Date: Mon, 13 Dec 2010 11:11:34 -0800	[thread overview]
Message-ID: <7vbp4p1o9l.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <1292233616-27692-6-git-send-email-pclouds@gmail.com> ("Nguyễn Thái Ngọc Duy"'s message of "Mon\, 13 Dec 2010 16\:46\:42 +0700")

Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes:

> This function can be potentially used in more places than just
> tree-diff.c. "struct diff_options" does not make much sense outside
> diff_tree_sha1().
>
> While removing the use of diff_options, it also removes
> tree_entry_extract() call, which means S_ISDIR() uses the entry->mode
> directly, without being filtered by canon_mode() (called internally
> inside tree_entry_extract)
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

The patch looks good, but the second paragraph above sounded unnecessarily
alarming and I had to read it three times to make sure nothing fishy is
going on ;-).

It bypasses tree-entry-extract call and uses fields of "entry" directly.
With the change, entry->mode is used without first getting normalized with
canon_mode(), but the only use of the mode information in this function is
to check the type of the entry by giving it to S_ISDIR() macro, and the
result does not change with or without canon_mode(), so it is Ok.

  reply	other threads:[~2010-12-13 19:11 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-13  9:46 [PATCH 00/19] nd/struct-pathspec (or pathspec unification [1]) Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 01/19] Add struct pathspec Nguyễn Thái Ngọc Duy
2010-12-13 17:31   ` Thiago Farina
2010-12-14 12:50     ` Nguyen Thai Ngoc Duy
2010-12-13  9:46 ` [PATCH 02/19] diff-no-index: use diff_tree_setup_paths() Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 03/19] pathspec: cache string length when initializing pathspec Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 04/19] Convert struct diff_options to use struct pathspec Nguyễn Thái Ngọc Duy
2010-12-13 19:00   ` Junio C Hamano
2010-12-14  5:02     ` Nguyen Thai Ngoc Duy
2010-12-13  9:46 ` [PATCH 05/19] tree_entry_interesting(): remove dependency on struct diff_options Nguyễn Thái Ngọc Duy
2010-12-13 19:11   ` Junio C Hamano [this message]
2010-12-13  9:46 ` [PATCH 06/19] Move tree_entry_interesting() to tree-walk.c and export it Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 07/19] glossary: define pathspec Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 08/19] pathspec: mark wildcard pathspecs from the beginning Nguyễn Thái Ngọc Duy
2010-12-13 18:09   ` Junio C Hamano
2010-12-13  9:46 ` [PATCH 09/19] tree-diff.c: reserve space in "base" for pathname concatenation Nguyễn Thái Ngọc Duy
2010-12-13 18:10   ` Junio C Hamano
2010-12-14  5:00     ` Nguyen Thai Ngoc Duy
2010-12-14  5:32       ` Junio C Hamano
2010-12-14  7:10         ` Nguyen Thai Ngoc Duy
2010-12-14  7:32         ` Johannes Sixt
2010-12-14  7:43           ` Nguyen Thai Ngoc Duy
2010-12-14  8:21             ` Johannes Sixt
2010-12-14 13:01               ` Nguyen Thai Ngoc Duy
2010-12-14 17:11                 ` Junio C Hamano
2010-12-13  9:46 ` [PATCH 10/19] tree_entry_interesting(): factor out most matching logic Nguyễn Thái Ngọc Duy
2010-12-13 18:10   ` Junio C Hamano
2010-12-13  9:46 ` [PATCH 11/19] tree_entry_interesting: support depth limit Nguyễn Thái Ngọc Duy
2010-12-13 18:10   ` Junio C Hamano
2010-12-14 14:44     ` Nguyen Thai Ngoc Duy
2010-12-13  9:46 ` [PATCH 12/19] tree_entry_interesting(): support wildcard matching Nguyễn Thái Ngọc Duy
2010-12-13 18:10   ` Junio C Hamano
2010-12-14 15:04     ` Nguyen Thai Ngoc Duy
2010-12-13  9:46 ` [PATCH 13/19] tree_entry_interesting(): optimize fnmatch when base is matched Nguyễn Thái Ngọc Duy
2010-12-13 18:10   ` Junio C Hamano
2010-12-13  9:46 ` [PATCH 14/19] Convert ce_path_match() use to match_pathspec() Nguyễn Thái Ngọc Duy
2010-12-13 19:31   ` Junio C Hamano
2010-12-14 15:14     ` Nguyen Thai Ngoc Duy
2010-12-13  9:46 ` [PATCH 15/19] pathspec: add match_pathspec_depth() Nguyễn Thái Ngọc Duy
2010-12-13 19:28   ` Junio C Hamano
2010-12-14  5:07     ` Nguyen Thai Ngoc Duy
2010-12-13  9:46 ` [PATCH 16/19] grep: convert to use struct pathspec Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 17/19] grep: use match_pathspec_depth() for cache/worktree grepping Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 18/19] grep: use preallocated buffer for grep_tree() Nguyễn Thái Ngọc Duy
2010-12-13  9:46 ` [PATCH 19/19] grep: drop pathspec_matches() in favor of tree_entry_interesting() Nguyễn Thái Ngọc Duy

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