GNU bug report logs - #56669
enhancement: Link guix system and guix home

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From: Maxime Devos <maximedevos <at> telenet.be>
To: Andrew Tropin <andrew <at> trop.in>, guix-bug-va9nk6 <at> rdmp.org, 56669 <at> debbugs.gnu.org
Cc: Tissevert <tissevert+guix <at> marvid.fr>
Subject: bug#56669: enhancement: Link guix system and guix home
Date: Thu, 21 Jul 2022 19:25:11 +0200

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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.

> + 
> <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).

> + 
> <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?

Greetings,
Maxime.

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