39 lines
1 KiB
Nix
39 lines
1 KiB
Nix
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{ lib, config, ... }:
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let
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t = lib.types;
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in
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{
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options = {
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virtualisation.diskSizeAutoSupported = lib.mkOption {
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type = t.bool;
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default = true;
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description = ''
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Whether the current image builder or vm runner supports `virtualisation.diskSize = "auto".`
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'';
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internal = true;
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};
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virtualisation.diskSize = lib.mkOption {
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type = t.either (t.enum [ "auto" ]) t.ints.positive;
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default = if config.virtualisation.diskSizeAutoSupported then "auto" else 1024;
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defaultText = "\"auto\" if diskSizeAutoSupported, else 1024";
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description = ''
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The disk size in megabytes of the virtual machine.
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'';
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};
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};
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config =
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let
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inherit (config.virtualisation) diskSize diskSizeAutoSupported;
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in
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{
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assertions = [
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{
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assertion = diskSize != "auto" || diskSizeAutoSupported;
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message = "Setting virtualisation.diskSize to `auto` is not supported by the current image build or vm runner; use an explicit size.";
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}
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];
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};
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}
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