Date: Wed, 13 Jun 2012 21:31:01 +0200 From: Mel Flynn <rflynn@acsalaska.net> To: Warren Block <wblock@wonkity.com> Cc: Chris Rees <crees@freebsd.org>, Mark Linimon <linimon@lonesome.com>, Scot Hetzel <swhetzel@gmail.com>, Andriy Gapon <avg@freebsd.org>, freebsd-ports@freebsd.org Subject: Re: UID/GID_OFFSET (Was: Re: WITH_GCC) Message-ID: <4FD8EA75.20305@acsalaska.net> In-Reply-To: <alpine.BSF.2.00.1206111829410.85641@wonkity.com> References: <CAGFTUwPUFdP=Z20%2BbL59qFuh_V6R1R-GcyrK03dxESL6ZyGz7A@mail.gmail.com> <4F578AA7.4060008@FreeBSD.org> <4F990D9A.3090100@FreeBSD.org> <4FA643FA.3050206@FreeBSD.org> <4FAB6E01.50108@FreeBSD.org> <CACdU%2Bf_77t7GCH2hm3hwcK2i%2BTcHUq_aBP4a7SeghQhGz3soDg@mail.gmail.com> <4FAC2EC1.8040708@FreeBSD.org> <20120517014743.GB5348@lonesome.com> <alpine.BSF.2.00.1205172027340.62885@wonkity.com> <CADLo838i1pydvZrzMbq=kJrg%2BHHyGvSp%2Bxr2=piCLMaWaajq2Q@mail.gmail.com> <4FBFF63D.7010404@acsalaska.net> <alpine.BSF.2.00.1206111829410.85641@wonkity.com>
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On 12-6-2012 2:38, Warren Block wrote:
> On Fri, 25 May 2012, Mel Flynn wrote:
>
>> On 20-5-2012 14:06, Chris Rees wrote:
>>
>>> Usually. Sometimes it's (ab)used to include the relevant bsd.*.mk
>>> file without adding dependencies (WANT_GNOME), but normally that's
>>> what WANT_ is used for.
>>>
>>> Definitely add a warning that if you want to use a WANT_ variable you
>>> should also check the relevant Mk/ files to check for syntax.
>>
>> What's also not consistent is the use of:
>> USE_FOO= 42+
>> which is shorthand for:
>> USE_FOO= yes
>> WANT_FOO_VER= 42+
>>
>> Anyway, since Warren is on the job, on one of my travels through pmk, I
>> turned a corner and met these totally awesome user settable variables:
>> UID_OFFSET
>> GID_OFFSET
>>
>> No docs on them in pmk itself or share/examples/etc/make.conf. What they
>> do is add the specified number to the UID and GID that a port defines by
>> using /usr/ports/{UIDS,GIDS}. This is extremely useful if you are using
>> multiple jails on one machine and don't want the uid's to clash (shared
>> memory for example).
>> It's also useful, if you have different providers for uid/gid
>> information through the use of NSS modules. Knowing that ports won't
>> ever get into your "module range" makes you sleep better.
>> Example in /etc/make.conf
>> UID_OFFSET= 20000
>> GID_OFFSET= ${UID_OFFSET} # best to keep them equal
>>
>> Installing for example postgresql, will now use uid/gid 20070 instead
>> of 70.
>
> Okay, I've finally cleared some room to work on this; sorry about the
> delay.
>
> My main question is where to add these descriptions. Should they go in
> existing sections where possible? Or are we talking about a new
> section, and if so, where? At the end of the Dependencies section?
Ideally in man7/ports.7, but I see that is quite outdated. It shouldn't
be in the porters handbook. The variables are useful for end users. The
handbook maybe?
--
Mel
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