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

[Zac Medico]

On 05/09/2015 10:08 AM, Joakim Tjernlund wrote:
> On Sat, 2015-05-09 at 09:36 -0700, Zac Medico wrote:
>> On 05/09/2015 06:47 AM, Joakim Tjernlund wrote:
>>> On Fri, 2015-05-08 at 11:32 -0700, Zac Medico wrote:
>>>> 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:
>>>>>>>>>>>>> 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=/.
>>>
>>> This makes sense when just using ROOT, not when cross compiling.
>>> If I cross build (or use PORTAGE_REPOSITORIES ?) I don't think it makes
>>> sense to add the hosts profile as it has little to nothing to
>>> do with my cross target.
>>> How would a cross target use the hosts profile sensibly?
>>
>> The host profile is only used for packages installed to ROOT=/ in order
>> to satisfy DEPEND. If you use the emerge --root-deps then the host
>> profile is used for absolutely nothing (although it is still instantiated).
>
> I see, it would be nice if it wasn't instantiated when not needed so
> one could avoid the error I have seen.
>
>>
>>>>
>>>>> 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.
>>>
>>> That is what I am doing now, but that still includes the hosts profile I think ?
>>
>> It will only be used for packages installed to ROOT=/ in order to
>> satisfy DEPEND, as I have mentioned above.
>
> OK, you always read the host profile in case you need it.
> May I suggest you avoid touching the host profile when it not used(cross complies)?

I suppose we could lazily instantiate the config for ROOT=/ at the point
where a a DEPEND needs to be satisfied (or HDEPEND for EAPI 5-hdepend).
See this bug:

	https://bugs.gentoo.org/show_bug.cgi?id=324179
-- 
Thanks,
Zac