Gentoo Archives: gentoo-dev

From: Zac Medico <zmedico@g.o>
To: Zac Medico <zmedico@g.o>
Cc: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] [RFC] DIGESTS metadata variable for cache validation
Date: Mon, 16 Feb 2009 00:53:54
Message-Id: 4998B94C.4000301@gentoo.org
In Reply to: Re: [gentoo-dev] [RFC] DIGESTS metadata variable for cache validation by Zac Medico
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4 Zac Medico wrote:
5 > Ciaran McCreesh wrote:
6 >> On Sun, 15 Feb 2009 15:56:18 -0800
7 >> It only comes into its own if you expect there to be a long time
8 >> between an EAPI being used in the tree and an EAPI being supported by a
9 >> package manager. And even then, it's probably easier to just do a minor
10 >> stable release straight away with rules for "don't know how to use this
11 >> EAPI, but do know how to read metadata cache entries for it" whilst
12 >> keeping new EAPI support for the next major release.
13 >
14 > But how will it know if it supports those cache entries? Wouldn't
15 > the easiest way to determine that be to have a DIGESTS version
16 > identifier? Otherwise, the only way for it to know would be to parse
17 > it and either throw a parse error if necessary or proceed all the
18 > way to the digest verification step (if it doesn't hit a parse error
19 > first).
20
21 Well, I guess you were saying that it should just use the EAPI.
22 Given that we don't have much control over how often users upgrade,
23 I'd still prefer to have a DIGESTS version identifier.
24 - --
25 Thanks,
26 Zac
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