#22883 - Trustable "guix pull" - GNU bug report logs

Package	Source(s)		Maintainer(s)
guix		PTS Buildd Popcon

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From: ludo@gnu.org (Ludovic Courtès)
To: Vagrant Cascadian <vagrant@debian.org>
Subject: Re: bug#22883: Trustable "guix pull"
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Date: Sun, 02 Sep 2018 18:05:42 +0200
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Hi Vagrant,

Vagrant Cascadian <vagrant@debian.org> skribis:

> This isn't exactly pretty, and obviously a better long-term solution is
> needed, but I wrote a quick shell script to at least partially addresses
> some my biggest fears with guix pull...
>
> Basically, it updates a git checkout, checks the signatures on the
> commits, looking for the topmost signed commit by a key in a specific
> keyring, and then runs guix pull with that commit.

Thanks for sharing!  Even if it’s not the long-term solution, it’s a
useful way to see how to move forward.

> It relies on a custom gpg directory and assumes any of the keys in the
> keyring are valid potential signers of the commits; the web of trust is
> essentially ignored.
>
> I really don't like having a custom GNUPGHOME, but I didn't see any
> other obvious way to pass arguments to git to use a custom keyring. I
> populated this GNUPGHOME with keys from:
>
>   https://savannah.gnu.org/project/memberlist-gpgkeys.php?group=guix&download=1
>
> And then ran gpg --refresh-keys on it, as several keys were
> outdated/expired.

‘gpgv’, which is recommended for this use case, has a ‘--keyring’
argument.  I suppose we could use that.

> (an alternative approach to populate the keyring might be:
> https://gitlab.com/Efraim/guix-keyring)

Indeed, didn’t know about this repo.

Thank you,
Ludo’.

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#22883 Trustable "guix pull"