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flakelight/builtinModules/functor.nix

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Add functor option for flake's __functor attribute This allows for conveniently making flakes callable. Setting this is expected to be uncommon in general, but having the option is useful as flakelight module flakes can use this to reduce the boilerplate in using them.
2023-09-14 06:00:14 +02:00
# flakelight -- Framework for simplifying flake setup
# Copyright (C) 2023 Archit Gupta <archit@accelbread.com>
# SPDX-License-Identifier: MIT
Replace nixpkgs nullOr type with custom type `nullOr`'s merge function requires definitions to all be null or all be non-null. It was being used where the intent was that null be used as a value representing unset, and as such the merge should return null if all definitions are null and ignore nulls otherwise. This adds a type with that merge semantics.
2024-02-07 09:54:03 +01:00
{ config, lib, flakelight, ... }:
Add functor option for flake's __functor attribute This allows for conveniently making flakes callable. Setting this is expected to be uncommon in general, but having the option is useful as flakelight module flakes can use this to reduce the boilerplate in using them.
2023-09-14 06:00:14 +02:00
let
inherit (lib) mkOption mkIf;
Replace nixpkgs nullOr type with custom type `nullOr`'s merge function requires definitions to all be null or all be non-null. It was being used where the intent was that null be used as a value representing unset, and as such the merge should return null if all definitions are null and ignore nulls otherwise. This adds a type with that merge semantics.
2024-02-07 09:54:03 +01:00
inherit (lib.types) functionTo raw uniq;
inherit (flakelight.types) nullable;
Add functor option for flake's __functor attribute This allows for conveniently making flakes callable. Setting this is expected to be uncommon in general, but having the option is useful as flakelight module flakes can use this to reduce the boilerplate in using them.
2023-09-14 06:00:14 +02:00
in
{
options.functor = mkOption {
Replace nixpkgs nullOr type with custom type `nullOr`'s merge function requires definitions to all be null or all be non-null. It was being used where the intent was that null be used as a value representing unset, and as such the merge should return null if all definitions are null and ignore nulls otherwise. This adds a type with that merge semantics.
2024-02-07 09:54:03 +01:00
type = nullable (uniq (functionTo (functionTo raw)));
Add functor option for flake's __functor attribute This allows for conveniently making flakes callable. Setting this is expected to be uncommon in general, but having the option is useful as flakelight module flakes can use this to reduce the boilerplate in using them.
2023-09-14 06:00:14 +02:00
default = null;
};
Fix inconsistency when setting outputs.__functor This edge case was inconsistent between setting outputs directly and auto-loading. Setting directly did not support args, so just merged sets, thus resulting in a __functor flake output. When autoloading, a set with a __functor attr was treated as a function and passed module args. To correct this inconsistency, outputs now always supports taking args, and has the autoloading behavior. Code that relied on previous behavior is easy to fix, as the value needs to be converted to a function, which can then return the set with __functor.
2024-01-15 04:10:17 +01:00
config.outputs = mkIf (config.functor != null) (_: {
Add functor option for flake's __functor attribute This allows for conveniently making flakes callable. Setting this is expected to be uncommon in general, but having the option is useful as flakelight module flakes can use this to reduce the boilerplate in using them.
2023-09-14 06:00:14 +02:00
__functor = config.functor;
Fix inconsistency when setting outputs.__functor This edge case was inconsistent between setting outputs directly and auto-loading. Setting directly did not support args, so just merged sets, thus resulting in a __functor flake output. When autoloading, a set with a __functor attr was treated as a function and passed module args. To correct this inconsistency, outputs now always supports taking args, and has the autoloading behavior. Code that relied on previous behavior is easy to fix, as the value needs to be converted to a function, which can then return the set with __functor.
2024-01-15 04:10:17 +01:00
});
Add functor option for flake's __functor attribute This allows for conveniently making flakes callable. Setting this is expected to be uncommon in general, but having the option is useful as flakelight module flakes can use this to reduce the boilerplate in using them.
2023-09-14 06:00:14 +02:00
}
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