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To: gentoo-dev@g.o
From: Brian Harring <ferringb@...>
Subject: Re: adding a modification timestamp to the installed pkgs database (vdb)
Date: Tue, 27 Oct 2009 22:11:57 -0700
On Tue, Oct 27, 2009 at 11:32:30AM -0700, Zac Medico wrote:
> Brian Harring wrote:
> > The proposal is pretty simple; if code modifies the vdb in any 
> > fashion, it needs to update the mtime on a file named 
> > '.modification_time' in the root of the vdb.
> 
> I'd to prefer using the mtime of the /var/db/pkg directory itself,
> since existence of a '.modification_time' file isn't going to prove
> that an programs that don't recognize that file haven't made any
> modifications.

Grumble.  Works for me.


> We can also use the mtimes of category subdirectories, in order to
> indicate whether a modification has occurred in any given category.

Pkgcore already relies on that for old style virtuals cache.  The 
pisser there is that modifications w/in a node don't result in a 
category level mtime- it certainly would be nice to have it formalized 
in some fashion so that cache regeneration could just work on the 
areas it needs to.

~brian
Attachment:
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References:
adding a modification timestamp to the installed pkgs database (vdb)
-- Brian Harring
Re: adding a modification timestamp to the installed pkgs database (vdb)
-- Zac Medico
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