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Re: [Gnu-arch-users] Re: arch with 'special files'
From: |
Josh England |
Subject: |
Re: [Gnu-arch-users] Re: arch with 'special files' |
Date: |
Wed, 06 Apr 2005 08:33:50 -0700 |
User-agent: |
Mozilla Thunderbird 1.0.2 (X11/20050329) |
address@hidden wrote:
>>Hm, it's not that easy. There will have to be a set of data types
>>(content, type, permissions, ...) that will be recorded for each file,
>>and a set of procedures to diff and patch them. This set should be
>>extensible and might be different on each platform. However, all the
>>standard mapping would have to be built in.
Again, the set of data type for which arch should do any implicit
'diffing' should be *very limited*. (Plain text) content, file type,
permissions, (optinal) ownership, and (optional) CR/LF come to mind.
Everything else can be handled with (plain text) user-level metadata.
Arch would store it, but the user would have to deal with it.
>>Note, that for security reasons arch must not run archive-provided
>>scripts, so the diff algorithm specification has to be flexible enough
>>to be actually useful.
>
>
> *This* could turn out to be a real killer. I think it'd be difficult
> to get things right in the first place. As your attribute set evolves
> (along the archive's life) your attribute-related algorithms might
> want to evolve too.
>
> How does one solve that?
Effectively, punt. User-level metadata is the user's problem. They
would have to handle it in specialized post-update wrapper scripts.
-JE
- Re: [Gnu-arch-users] Re: arch with 'special files', (continued)
- Re: [Gnu-arch-users] Re: arch with 'special files', David Allouche, 2005/04/07
- Re: [Gnu-arch-users] Re: arch with 'special files', Robin Farine, 2005/04/07
- Re: [Gnu-arch-users] Re: arch with 'special files', Jan Hudec, 2005/04/06
- Re: [Gnu-arch-users] Re: arch with 'special files', Andrew Suffield, 2005/04/06
- Re: [Gnu-arch-users] Re: arch with 'special files', tomas, 2005/04/06
- Re: [Gnu-arch-users] Re: arch with 'special files', tomas, 2005/04/06
- Re: [Gnu-arch-users] Re: arch with 'special files',
Josh England <=
Re: [Gnu-arch-users] Re: arch with 'special files', Tom Lord, 2005/04/06
- Re: [Gnu-arch-users] Re: arch with 'special files', Jan Hudec, 2005/04/07
- Re: [Gnu-arch-users] Re: arch with 'special files', Josh England, 2005/04/07
- Re: [Gnu-arch-users] Re: arch with 'special files', Jan Hudec, 2005/04/07
- Re: [Gnu-arch-users] Re: arch with 'special files', Tom Lord, 2005/04/08
- Re: [Gnu-arch-users] Re: arch with 'special files', tomas, 2005/04/09
- Re: [Gnu-arch-users] Re: arch with 'special files', Tom Lord, 2005/04/11
Re: [Gnu-arch-users] Re: arch with 'special files', Tom Lord, 2005/04/08
Re: [Gnu-arch-users] Re: arch with 'special files', Ulf Ochsenfahrt, 2005/04/02