Bug#670322: apt: hiding foreign arch from APT::Architectures, using with [arch=] only, only partly works

[Goswin von Brederlow <goswin-v-b@web.de>]

Yann Dirson <ydirson@free.fr> writes:

> On Wed, Apr 25, 2012 at 11:12:42AM +0200, Goswin von Brederlow wrote:
>> Yann Dirson <ydirson@free.fr> writes:
>> 
>> > Package: apt
>> > Version: 0.8.15.10
>> > Severity: normal
>> >
>> > (found no changelog entry for 0.9.x looking like this problem)
>> >
>> > I have many sources.list entries, and only want selected ones to take
>> > armel packages into account.  The new [arch=] tag seems tailored for
>> > this, but then, APT::Architectures defaults to all foreign archs
>> 
>> This works the other way around. arch=... is to limit the architectures.
>> The default is ment to be all APT::Architectures.
>
> Ah OK.  But then, apt should probably not fetch the package list for
> armel even when it is specified using arch=, isn't it ?
>
>> > -- /etc/apt/sources.list --
>> >
>> deb [ arch=amd64 ] ftp://ftp.debian.org/debian testing main contrib non-free

fetch only binary-amd64/Packages

>> deb ftp://ftp.debian.org/debian squeeze main

fetch all binary-{Apt::Architectures}/Packages
 
>> deb [ arch=amd64 ] ftp://ftp.debian.org/debian testing main contrib non-free
>> ...
>> deb ftp://ftp.debian.org/debian squeeze main
>> 
>> MfG
>>         Goswin

At least that was the idea and implementation when I wrote the patch and
when it was initially added.

MfG
        Goswin