65 lines
1.4 KiB
Nix
65 lines
1.4 KiB
Nix
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# This is a test to show that mkAliasOptionModule sets the priority correctly
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# for aliased options.
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#
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# This test shows that an alias with a high priority is able to override
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# a non-aliased option.
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{ config, lib, ... }:
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let
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inherit (lib)
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mkAliasOptionModule
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mkForce
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mkOption
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types
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;
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in
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{
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options = {
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# A simple boolean option that can be enabled or disabled.
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enable = mkOption {
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type = types.nullOr types.bool;
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default = null;
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example = true;
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description = ''
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Some descriptive text
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'';
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};
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# mkAliasOptionModule sets warnings, so this has to be defined.
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warnings = mkOption {
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internal = true;
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default = [ ];
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type = types.listOf types.str;
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example = [ "The `foo' service is deprecated and will go away soon!" ];
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description = ''
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This option allows modules to show warnings to users during
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the evaluation of the system configuration.
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'';
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};
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};
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imports = [
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# Create an alias for the "enable" option.
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(mkAliasOptionModule [ "enableAlias" ] [ "enable" ])
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# Disable the aliased option with a high priority so it
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# should override the next import.
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(
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{ config, lib, ... }:
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{
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enableAlias = mkForce false;
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}
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)
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# Enable the normal (non-aliased) option.
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(
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{ config, lib, ... }:
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{
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enable = true;
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}
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)
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];
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}
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