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From: Liu Yubao <yubao.liu@gmail.com>
To: Jakub Narebski <jnareb@gmail.com>
Cc: Junio C Hamano <gitster@pobox.com>, git list <git@vger.kernel.org>
Subject: Re: two questions about the format of loose object
Date: Tue, 02 Dec 2008 10:19:52 +0800	[thread overview]
Message-ID: <49349B48.9050603@gmail.com> (raw)
In-Reply-To: <m33ah8jfm2.fsf@localhost.localdomain>

Jakub Narebski wrote:
> Liu Yubao <yubao.liu@gmail.com> writes:
> 
>> cons:
>>
>> * old git client can't read loose objects in new format
>>   (People degrade git rarely and old git can read pack files
>>    generated by new git, so it's not a big problem)
> 
> You forgot about "dumb" protocols, namely HTTP and (deprecated) rsync
> (and IIRC also FTP), which doesn't generate packfiles, and would get
> loose object in format intelligible for old clients.
> 
> IIRC this was main reason why core.legacyHeaders = false was abandoned.
> 

The server can keep an old git or set core.uncompressedLooseObject = false.

Even the pack file format can be changed so that forward compatability will
be broken, I think it's unavoidable.

I'm not clear about the story of core.legacyHeaders, I'll dig the mail
list archive.

Thanks for reminding me of the dumb protocols.


Best regards,

Liu Yubao

  reply	other threads:[~2008-12-02  2:21 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-01  8:00 two questions about the format of loose object Liu Yubao
2008-12-01  8:25 ` Junio C Hamano
2008-12-01  9:28   ` Liu Yubao
2008-12-01 11:32     ` Jakub Narebski
2008-12-02  2:19       ` Liu Yubao [this message]
2008-12-01 15:21     ` Shawn O. Pearce
2008-12-02  2:43       ` Liu Yubao
2008-12-02  1:48   ` [PATCH 0/5] support reading and writing uncompressed " Liu Yubao
2008-12-02  1:51   ` [PATCH 1/5] avoid parse_sha1_header() accessing memory out of bound Liu Yubao
2008-12-02 15:42     ` Shawn O. Pearce
2008-12-03  3:49       ` Liu Yubao
2008-12-02  1:53   ` [PATCH 2/5] don't die immediately when convert an invalid type name Liu Yubao
2008-12-02  1:55   ` [PATCH 3/5] optimize parse_sha1_header() a little by detecting object type Liu Yubao
2008-12-02 15:53     ` Shawn O. Pearce
2008-12-03  4:06       ` Liu Yubao
2008-12-02  1:56   ` [PATCH 4/5] support reading uncompressed loose object Liu Yubao
2008-12-02 15:58     ` Shawn O. Pearce
2008-12-03  4:09       ` Liu Yubao
2008-12-02  2:03   ` [PATCH 5/5] support writing " Liu Yubao
2008-12-02 16:07     ` Shawn O. Pearce
2008-12-03  4:22       ` Liu Yubao
2008-12-02  3:11   ` [PATCH 0/5] support reading and " Liu Yubao
2008-12-01 12:16 ` two questions about the format of " Nick Andrew
2008-12-02  2:26   ` Liu Yubao
2008-12-01 15:32 ` Shawn O. Pearce
2008-12-02  3:05   ` Liu Yubao
2008-12-04  0:54     ` Nicolas Pitre

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