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nixos/printers: assert that each class contains at least one printer or class (#564028)

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dotlambda
2026-09-17 06:54:53 +00:00
committed by GitHub
parent 5518f0fd64 cd1fdc1df9
commit 7d57b8ea84
1 changed files with 8 additions and 17 deletions
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25
nixos/modules/hardware/printers.nix
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@@ -78,11 +78,6 @@ in
config.hardware.printers.ensurePrinters. Specifying a symblic
name here that does not match any of those printers is
considered a hard error.
::: {.warning}
Print jobs to this class will quietly fail if there are no
printers in this class. CUPS reports them as pending
:::
'';
};
classes = mkOption {
@@ -267,7 +262,14 @@ in
'';
}
)
];
]
++ map (class: {
assertion = cfg.ensureClasses.${class}.printers != [ ] || cfg.ensureClasses.${class}.classes != [ ];
message = ''
At least one of the lists `config.hardware.printers.ensureClasses.${class}.printers`
and `config.hardware.printers.ensureClasses.${class}.classes` has to be non-empty.
'';
}) (builtins.attrNames cfg.ensureClasses);
systemd.services.cups = {
postStart =
@@ -333,17 +335,6 @@ in
d = cfg.ensureDefaultPrinter;
})}
#### CLASS DEFINITIONS ####
lpadmin -p _tmp -v file:/dev/null
${lib.concatMapStringsSep "\n" (
className:
lpadmin {
p = "_tmp";
c = className;
}
) classNames}
lpadmin -x _tmp
#### ADDING PRINTERS TO CLASSES ####
${lib.concatMapStringsSep "\n" (
className: