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modules/common/user: ensure generator generates str or drv

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éclairevoyant 2025-07-05 08:42:18 -04:00
parent 4c6022398a
commit 85a1964abf
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1 changed files with 13 additions and 4 deletions
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17
modules/common/user.nix
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@ -13,7 +13,7 @@
inherit (lib.modules) mkIf mkDefault mkDerivedConfig mkMerge;
inherit (lib.options) mkOption literalExpression mkEnableOption;
inherit (lib.strings) hasPrefix;
inherit (lib.types) anything attrsOf bool either functionTo lines listOf nullOr package path str submodule oneOf int;
inherit (lib.types) addCheck anything attrsOf bool either functionTo int lines listOf nullOr package path str submodule oneOf;
inherit (builtins) isList;
cfg = config;
@ -59,7 +59,13 @@
};
generator = lib.mkOption {
type = nullOr (functionTo (either options.source.type options.text.type));
# functionTo doesn't actually check the return type, so do that ourselves
type = addCheck (nullOr (functionTo (either options.source.type options.text.type))) (x: let
generatedValue = x config.value;
generatesDrv = options.source.type.check generatedValue;
generatesStr = options.text.type.check generatedValue;
in
x != null -> (generatesDrv || generatesStr));
default = null;
description = ''
Function that when applied to `value` will create the `source` or `text` of the file.
@ -112,6 +118,9 @@
config = let
generatedValue = config.generator config.value;
hasGenerator = config.generator != null;
generatesDrv = options.source.type.check generatedValue;
generatesStr = options.text.type.check generatedValue;
in
mkMerge [
{
@ -123,11 +132,11 @@
}));
}
(lib.mkIf (config.generator != null && options.source.type.check generatedValue) {
(lib.mkIf (hasGenerator && generatesDrv) {
source = mkDefault generatedValue;
})
(lib.mkIf (config.generator != null && options.text.type.check generatedValue) {
(lib.mkIf (hasGenerator && generatesStr) {
text = mkDefault generatedValue;
})
];