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Message-ID: <4D281F33.1030805@iki.fi>
Date: Sat, 08 Jan 2011 10:24:19 +0200
From: =?UTF-8?B?VGltbyBUZXLDpHM=?= <timo.teras@iki.fi>
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To: Matt Smith <mcs@darkregion.net>
CC: Natanael Copa <ncopa@alpinelinux.org>, 
 alpine-devel@lists.alpinelinux.org
Subject: Re: [alpine-devel] The install_if feature in apk-tools
References: <20110104094133.1b4895c5@ncopa-desktop.nor.wtbts.net> <1294472305.36599267@192.168.4.58>
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On 01/08/2011 09:38 AM, Matt Smith wrote:
> On Tuesday, January 4, 2011 2:41am, "Natanael Copa" <ncopa@alpinelinux.org>
> said:
> 
> ..snip..
>> * Do we want use-flags like features for things like mysql, radius etc?
>>   For example, if you install a virtual 'mysql-support' package, then
>>   will all packages that has a mysql plug automatically pull those in?
>>   For example, i you install php you'll get php-mysql pulled in. If you
>>   install asterisk and postfix will also asterisk-mysql and
>>   postfix-mysql be pulled in. If you uninstall the virtual
>>   'mysql-support' then will php-mysql, asterisk-mysql and postfix-mysql
>>   go with it. I am not sure how useful such 'mysql-support' feature
>>   will be.
>>
>> Thoughts?
> 
> IMHO, use-flags was just another one of those features that scared me
> away from using Gentoo Linux.
> 
> For instance, this is just horrifying:
> http://www.gentoo.org/dyn/use-index.xml

Yes, that's a horribly long list to go through.

> On one hand, I think use-flags could be a great thing, but on the other,
> I just don't want to see it get out of hand, or be forced on the user in
> order to use the system.  I think if those 'rules' could be followed, then
> we could enjoy use-flags.

The idea on install_if is that it's completely optional. You can always
install your packages on per-package basis, and you never need to
install the virtual targets.

However, install_if gives you a great help, if you just want some
feature X to work. Like "make all programs localized to Norwegian". It'd
be single command: "apk add lang-no" instead of going through all the
packages having Norwegian support and installing the them one by one.


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