doc: Explain how to use local guix repositories.

* doc/guix.texi (Using a Custom Guix Channel): Add note and example
on how to exempt a local guix repository from git ownership checks.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
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André Batista 2023-02-17 16:06:40 -03:00 committed by Maxim Cournoyer
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@ -81,7 +81,7 @@ Copyright @copyright{} 2020, 2021 Brice Waegeneire@*
Copyright @copyright{} 2020 R Veera Kumar@*
Copyright @copyright{} 2020, 2021, 2022 Pierre Langlois@*
Copyright @copyright{} 2020 pinoaffe@*
Copyright @copyright{} 2020 André Batista@*
Copyright @copyright{} 2020, 2023 André Batista@*
Copyright @copyright{} 2020, 2021 Alexandru-Sergiu Marton@*
Copyright @copyright{} 2020 raingloom@*
Copyright @copyright{} 2020 Daniel Brooks@*
@ -5412,6 +5412,25 @@ From there on, @command{guix pull} will fetch code from the @code{super-hacks}
branch of the repository at @code{example.org}. The authentication concern is
addressed below (@pxref{Channel Authentication}).
Note that you can specify a local directory on the @code{url} field above if
the channel that you intend to use resides on a local file system. However,
in this case @command{guix} checks said directory for ownership before any
further processing. This means that if the user is not the directory owner,
but wants to use it as their default, they will then need to set it as a safe
directory in their global git configuration file. Otherwise, @command{guix}
will refuse to even read it. Supposing your system-wide local directory is at
@code{/src/guix.git}, you would then create a git configuration file at
@code{~/.gitconfig} with the following contents:
@example
[safe]
directory = /src/guix.git
@end example
@noindent
This also applies to the root user unless when called with @command{sudo} by
the directory owner.
@node Replicating Guix
@section Replicating Guix