From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Johan Herland <johan@herland.net>
Cc: git@vger.kernel.org, Junio C Hamano <junkio@cox.net>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] Change softrefs file format from text (82 bytes per entry) to binary (40 bytes per entry)
Date: Sun, 10 Jun 2007 09:02:11 +0100 (BST) [thread overview]
Message-ID: <Pine.LNX.4.64.0706100900420.4059@racer.site> (raw)
In-Reply-To: <200706092025.30156.johan@herland.net>
Hi,
On Sat, 9 Jun 2007, Johan Herland wrote:
> The text-based softrefs file format uses 82 bytes per entry (40 bytes
> from_sha1 in hex, 1 byte SP, 40 bytes to_sha1 in hex, 1 byte LF).
>
> The binary softrefs file format uses 40 bytes per entry (20 bytes
> from_sha1, 20 bytes to_sha1).
>
> Moving to a binary format increases performance slightly, but sacrifices
> easy readability of the softrefs files.
It is bad style to introduce one type, and then change it to another in a
backwards-incompatible way. Either you make it backwards compatible, or
you start with the second format, never even mentioning that you had
another format.
Ciao,
Dscho
next prev parent reply other threads:[~2007-06-10 8:05 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-04 0:51 Refactoring the tag object; Introducing soft references (softrefs); Git 'notes' (take 2) Johan Herland
2007-06-04 0:51 ` [PATCH 0/6] Refactor the tag object Johan Herland
2007-06-04 0:52 ` [PATCH 1/6] Refactor git tag objects; make "tag" header optional; introduce new optional "keywords" header Johan Herland
2007-06-04 6:08 ` Matthias Lederhofer
2007-06-04 7:30 ` Johan Herland
2007-06-04 0:53 ` [PATCH 2/6] git-show: When showing tag objects with no tag name, show tag object's SHA1 instead of an empty string Johan Herland
2007-06-04 0:53 ` [PATCH 3/6] git-fsck: Do thorough verification of tag objects Johan Herland
2007-06-04 5:56 ` Matthias Lederhofer
2007-06-04 7:51 ` Johan Herland
2007-06-06 7:18 ` Junio C Hamano
2007-06-06 8:06 ` Johan Herland
2007-06-06 9:03 ` Junio C Hamano
2007-06-06 9:21 ` Junio C Hamano
2007-06-06 10:26 ` Johan Herland
2007-06-06 10:35 ` Junio C Hamano
2007-06-04 0:54 ` [PATCH 4/6] Documentation/git-mktag: Document the changes in tag object structure Johan Herland
2007-06-04 0:54 ` [PATCH 5/6] git-mktag tests: Fix and expand the mktag tests according to the new " Johan Herland
2007-06-04 0:54 ` [PATCH 6/6] Add fsck_verify_ref_to_tag_object() to verify that refname matches name stored in tag object Johan Herland
2007-06-04 20:32 ` [PATCH 0/6] Refactor the " Junio C Hamano
2007-06-07 22:13 ` [PATCH] Fix bug in tag parsing when thorough verification was in effect Johan Herland
2007-06-09 18:19 ` [PATCH 0/7] Introduce soft references (softrefs) Johan Herland
2007-06-09 18:21 ` [PATCH 1/7] Softrefs: Add softrefs header file with API documentation Johan Herland
2007-06-10 6:58 ` Johannes Schindelin
2007-06-10 7:43 ` Junio C Hamano
2007-06-10 7:54 ` Johannes Schindelin
2007-06-10 14:00 ` Johan Herland
2007-06-10 14:27 ` Jakub Narebski
2007-06-10 14:45 ` [PATCH] Teach git-gc to merge unsorted softrefs Johan Herland
2007-06-09 18:22 ` [PATCH 2/7] Softrefs: Add implementation of softrefs API Johan Herland
2007-06-09 18:22 ` [PATCH 3/7] Softrefs: Add git-softref, a builtin command for adding, listing and administering softrefs Johan Herland
2007-06-09 18:23 ` [PATCH 4/7] Softrefs: Add manual page documenting git-softref and softrefs subsystem in general Johan Herland
2007-06-09 18:23 ` [PATCH 5/7] Softrefs: Add testcases for basic softrefs behaviour Johan Herland
2007-06-09 18:24 ` [PATCH 6/7] Softrefs: Administrivia associated with softrefs subsystem and git-softref builtin Johan Herland
2007-06-09 18:24 ` [PATCH 7/7] Teach git-mktag to register softrefs for all tag objects Johan Herland
2007-06-09 18:25 ` [PATCH] Change softrefs file format from text (82 bytes per entry) to binary (40 bytes per entry) Johan Herland
2007-06-10 8:02 ` Johannes Schindelin [this message]
2007-06-10 8:30 ` Junio C Hamano
2007-06-10 9:46 ` Johannes Schindelin
2007-06-10 14:03 ` Johan Herland
2007-06-09 23:55 ` Comment on weak refs Junio C Hamano
2007-06-10 1:25 ` Johan Herland
2007-06-10 6:33 ` Johannes Schindelin
2007-06-10 13:41 ` Johan Herland
2007-06-10 14:09 ` Pierre Habouzit
2007-06-10 14:25 ` Pierre Habouzit
2007-06-10 9:03 ` Pierre Habouzit
2007-06-10 15:26 ` Jakub Narebski
2007-06-09 22:57 ` Refactoring the tag object; Introducing soft references (softrefs); Git 'notes' (take 2) Steven Grimm
2007-06-09 23:16 ` Johan Herland
2007-06-10 8:29 ` Pierre Habouzit
2007-06-10 14:31 ` Johan Herland
2007-06-10 19:42 ` Steven Grimm
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