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nixos/filesystems: assert that the device and label options are consistent

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r-vdp 2024-12-08 15:40:56 +03:00 • committed by NotAShelf
parent 8aa3366263
commit b6dbf6deed
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12
nixos/modules/tasks/filesystems.nix
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@ -138,7 +138,7 @@ let
}; };
config.device = lib.mkIf (config.label != null) "/dev/disk/by-label/${escape config.label}"; config.device = lib.mkIf (config.label != null) (lib.mkDefault "/dev/disk/by-label/${escape config.label}");
config.options = let config.options = let
inInitrd = utils.fsNeededForBoot config; inInitrd = utils.fsNeededForBoot config;
@ -354,7 +354,15 @@ in
options. options.
''; '';
} }
]; ] ++ lib.map (fs: {
assertion = fs.label != null -> fs.device == "/dev/disk/by-label/${escape fs.label}";
message = ''
The filesystem with mount point ${fs.mountPoint} has its label and device set to inconsistent values:
label: ${toString fs.label}
device: ${toString fs.device}
'filesystems.<name>.label' and 'filesystems.<name>.device' are mutually exclusive. Please set only one.
'';
}) fileSystems;
# Export for use in other modules # Export for use in other modules
system.build.fileSystems = fileSystems; system.build.fileSystems = fileSystems;