Re: [gentoo-portage-dev] repos.conf location w.r.t PORTAGE_CONFIGROOT

[Zac Medico]

On 05/07/2015 11:43 PM, Joakim Tjernlund wrote:
> On Thu, 2015-05-07 at 14:09 -0700, Zac Medico wrote:
>> On 05/07/2015 03:51 AM, Joakim Tjernlund wrote:
>>> On Wed, 2015-05-06 at 22:45 +0000, Joakim Tjernlund wrote:
>>>> On Wed, 2015-05-06 at 15:16 -0700, Zac Medico wrote:
>>>>> On 05/06/15 14:57, Joakim Tjernlund wrote:
>>>>>> On Wed, 2015-05-06 at 14:36 -0700, Zac Medico wrote:
>>>>>>> On 05/06/15 14:30, Joakim Tjernlund wrote:
>>>>>>>> On Wed, 2015-05-06 at 13:30 -0700, Zac Medico wrote:
>>>>>>>>> On 05/06/15 13:22, Joakim Tjernlund wrote:
>>>>>>>>>> On Wed, 2015-05-06 at 12:54 -0700, Zac Medico wrote:
>>>>>>>>>>> On 05/06/15 12:41, Joakim Tjernlund wrote:
>>>>>>>>>>>> On Wed, 2015-05-06 at 19:13 +0000, Joakim Tjernlund wrote:
>>>>>>>>>>>>> On Wed, 2015-05-06 at 11:37 -0700, Zac Medico wrote:
>>>>>>>>>>>>>> On 05/06/15 09:54, Joakim Tjernlund wrote:
>>>>>>>>>>>>>>> I am trying to rebuild an old cross sysroot and I got problems.
>>>>>>>>>>>>>>> I cannot make emerge to select my old ebuilds in an overlay over those
>>>>>>>>>>>>>>> in /usr/portage.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> What new is since last time I did this is /etc/portage/repos.conf/
>>>>>>>>>>>>>>> I suspect emerge always reads /etc/portage/repos.conf/ no matter
>>>>>>>>>>>>>>> what I set PORTAGE_CONFIGROOT / ROOT to ?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>  Jocke
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> It instantiates 2 config instances, one using /etc/portage/repos.conf
>>>>>>>>>>>>>> (for build time DEPEND) and another one using
>>>>>>>>>>>>>> $PORTAGE_CONFIGROOT/etc/portage/repos.conf (for run time {P,R}DEPEND).
>>>>>>>>>>>>>> You can see that it's joined with PORTAGE_CONFIGROOT in the
>>>>>>>>>>>>>> load_repository_config function:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> https://gitweb.gentoo.org/proj/portage.git/tree/pym/portage/repository/config.py?id=
>>>>>>>>>>>>>> 0f19
>>>>>>>>>>>>>> 11
>>>>>>>>>>>>>> 13cc
>>>>>>>>>>>>>> cd04
>>>>>>>>>>>>>> 9e11
>>>>>>>>>>>>>> fdbe
>>>>>>>>>>>>>> 73
>>>>>>>>>>>>>> 493eb1efbf4bf89e#n971
>>>>>>>>>>>>>
>>>>>>>>>>>>> I see, doesn't this prevent exactly what I want to do?
>>>>>>>>>>>>>
>>>>>>>>>>>>> I can't see why this should be needed, it only creates a mess, another example:
>>>>>>>>>>>>> I tried to specify exact version of my old binutils and while that worked, portage
>>>>>>>>>>>>> wanted
>>>>>>>>>>>>> to pull in a newer binutils-config from the hosts master gentoo repo and
>>>>>>>>>>>>> thus the build failed.
>>>>>>>>>>>>>
>>>>>>>>>>>>> If a someone really wants this behaviour, he can just add the hosts master repo
>>>>>>>>>>>>> in his PORTAGE_CONFIGROOT IMHO
>>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Maybe emerge --root-deps=rdeps is what you are looking for. This will
>>>>>>>>>>> cause it to ignore DEPEND.
>>>>>>>>>>
>>>>>>>>>> That is not the same is it? if I "emerge ncurses" it will build ncurses but still
>>>>>>>>>> take the ebuild from the hosts master since it is newer version.
>>>>>>>>>>
>>>>>>>>>> I realize now that I can change what repos are searched by using
>>>>>>>>>> PORTAGE_REPOSITORIES=/my/own/repos.conf/
>>>>>>>>>> but I still find the default behaviour very confusing and I don't see that it is useful.
>>>>>>>>>
>>>>>>>>> The idea is that you have separate repositories configured for each
>>>>>>>>> ROOT. If it's satisfying a build-time DEPEND that will be installed into
>>>>>>>>> ROOT=/, then it's supposed to use the repositories configured for ROOT=/.
>>>>>>>>
>>>>>>>> I see, but in my case I only install into my sysroot so I don't want this behaviour.
>>>>>>>
>>>>>>> So, why don't you use the --root-deps option?
>>>>>>
>>>>>> Just did(and --root-deps=rdeps too) and it didn't work, still wants to use
>>>>>> my newer hosts pkgs. :(
>>>>>
>>>>> It shouldn't do that. It sounds like maybe the [gentoo] config
>>>>> from/usr/share/portage/config/repos.conf is the source of your problems,
>>>>> since you $PORTAGE_CONFIGROOT config will always inherit that. Would
>>>>> that be consistent with your observations?
>>>>
>>>> Moving that file out of the way changed things, now I got I profile error:
>>>> !!! Unable to parse profile: '/etc/portage/make.profile'
>>>> !!! ParseError: Parent 'gentoo:default/linux/amd64/13.0' not found:
>>>> '/var/lib/layman/transmode/profiles/gentoo64-server/parent'
>>>> !!! Your current profile is invalid. If you have just changed your profile
>>>> !!! configuration, you should revert back to the previous configuration.
>>>> !!! Allowed actions are limited to --help, --info, --search, --sync, and
>>>> !!! --version.
>>>>
>>>> Which I think is a problem in my cross env.
>>>
>>> No, this is not it. Portage just bails when reading the host profile which it should not.
>>>
>>> Note: defining
>>>   PORTAGE_REPOSITORIES=/my/own/repos.conf
>>> gives the same error.
>>>
>>
>> According to the error message, your transmode profile inherits a gentoo
>> profile, so you need the gentoo repository (at least the relevant profile).
>
> I have a my own profile in PORTAGE_CONFIGROOT which does not
> reference the host /etc/portage/make.profile at all so I think
> portage is using the wrong profile.

When using ROOT=/foo, it always instantiates 2 profiles, and it uses one
profile for ROOT=/foo and the other profile for ROOT=/.

> Futhermore, it does not understand the host profile, probably
> because my own PORTAGE_CONFIGROOT don't have profile-formats = portage-2

You're saying this beciase of the above ParseError? I think maybe what
you want to do keep the default /usr/share/portage/config/repos.conf and
mask */*::gentoo in $PORTAGE_CONFIGROOT/etc/portage/package.mask.
-- 
Thanks,
Zac