23 lines
1.2 KiB
Nix
23 lines
1.2 KiB
Nix
{lib, ...}: let
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# a function that will append a list of groups if they exist in config.users.groups
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ifTheyExist = config: groups: builtins.filter (group: builtins.hasAttr group config.users.groups) groups;
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# a function that returns a boolean based on whether or not the groups exist
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ifGroupsExist = config: groups: lib.any (group: builtins.hasAttr group config.users.groups) groups;
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# convenience function check if the declared device type is of an accepted type
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# takes config and a list of accepted device types
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# `isAcceptedDevice osConfig ["foo" "bar"];`
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isAcceptedDevice = conf: list: builtins.elem conf.modules.device.type list;
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# assert if the device is wayland-ready by checking sys.video and env.isWayland options
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# `(lib.isWayland config)` where config is in scope
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# `isWayland osConfig` -> true
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isWayland = conf: conf.modules.system.video.enable && conf.modules.usrEnv.isWayland;
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# ifOneEnabled takes a parent option and 3 child options and checks if at least one of them is enabled
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# `ifOneEnabled config.modules.services "service1" "service2" "service3"`
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ifOneEnabled = cfg: a: b: c: (cfg.a || cfg.b || cfg.c);
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in {
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inherit ifTheyExist ifGroupsExist isAcceptedDevice isWayland ifOneEnabled;
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}
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