bug#56669: enhancement: Link guix system and guix home

[Andrew Tropin <andrew@trop.in>]

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On 2022-07-21 19:25, Maxime Devos wrote:

> On 21-07-2022 19:13, Andrew Tropin wrote:
>
>> The source code is here:
>> https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9
>
> What's the 'guix-home-gc-roots' for? I would expect the reference 
> #$(file-append he "/activate") to be sufficient to keep things from 
> being gc'ed.

It was needed while I was testing manual activation without shepherd
service, not needed anymore, already removed it locally.

>
>> + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-23> 
>> (start #~(make-forkexec-constructor + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-24> 
>> '(#$(file-append he "/activate")) + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-25> 
>> #:user #$user + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-26> 
>> #:environment-variables + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-27> 
>> (list (string-append "HOME=" (passwd:dir (getpw #$user)))) + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-28> 
>> #:group (group:name (getgrgid (passwd:gid (getpw #$user))))))
> I'm wondering if GUIX_LOCPATH is needed as well. Anyway, if not done 
> already internally by /activate, you could consider doing it in a 
> container to reduce potential irreproducibility, or insecurity on 
> multi-user systems (I'd assume the #:user + #:group to be sufficient for 
> security, especially if it appears sufficient for other system services, 
> but I'm not some expert on what things need to be set).
>
It's not set by /activate.

>> + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-20> 
>> (provision (list (symbol-append 'guix-home- (string->symbol user)))) + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-21> 
>> (one-shot? #t) + 
>> <https://git.sr.ht/~abcdw/rde/commit/c5b4097ab99309ace23e40d957e9fa1f938f97e9#gnu/services/home.scm-1-22> 
>> (auto-start? #f)
> Wouldn't it then be possible for the user to login via the login manager 
> before initialisation has completed, as gdm etc don't wait for 
> guix-home-... currently?

You are right, the same as the first one, needed for more manual
approach, changed to #t, thank you.

Three patches for this service to work is on the way on guix-patches.
In the meantime, will try to build livecd with the home environment
inside.

P.S. Probably this system service is far from final version of this
feature, I still think about making home-environment a part of
user-account.  Will evaluate pros and cons, after I get livecd built
successfully.

-- 
Best regards,
Andrew Tropin

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