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nixpkgs/lib/tests/modules/alias-with-priority-can-override.nix
(cdep)illabout 81fa1e392b lib/modules: Change mkAliasOptionModule to use the priority for the alias.
This commit changes the `mkAliasOptionModule` function to make sure that
the priority for the aliased option is propagated to the non-aliased
option.

This also affects the `mkRenamedOptionModule` function in a similar
fashion.

This also removes the `mkAliasOptionModuleWithPriority` function, since
its functionality is now subsumed by `mkAliasOptionModule`.

This change was recommended by @nbp:
https://github.com/NixOS/nixpkgs/pull/53397#discussion_r245487432
2019-01-24 13:02:16 +09:00

53 lines
1.3 KiB
Nix

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