[bug#55055] Fwd: [bug#55055] [PATCH] gnu: wireguard: Add support for PresharedKey

[Maxime Devos]

Paul Alesius schreef op do 21-04-2022 om 22:41 [+0200]:
> > Also, #f is not a string, did you mean ‘;#f|string’?
> 
> The idea behind #f is that the field is optional, so that if it isn't
> specified in the configuration then it isn't written to the
> configuration file at all, hence #f is for a conditional when writing
> the actual configuration file and has no default value.

It's optional in the generated wireguard configuration file, but not in
the Guix record -- Guile records don't have a concept of optional
fields, though there are fields with default values.

Though apparently conventions are a bit inconsistent in Guix on this
matter.  wireguard-configuration just does ;string, but <agetty-
configuration> does

(define-record-type* <agetty-configuration>
  [...]
  (tty              agetty-configuration-tty)     ;string | #f
  (term             agetty-term                   ;string | #f
                    (default #f))
  (baud-rate        agetty-baud-rate              ;string | #f
                    (default #f))
  (auto-login       agetty-auto-login             ;list of strings | #f
                    (default #f))
  [...]

Greetings,
Maxime.

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