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Add enum option type

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This commit is contained in:
Shea Levy 2014-05-01 11:30:20 -04:00
parent e4630c1d41
commit ab2cd34076
1 changed files with 6 additions and 0 deletions
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6
lib/types.nix
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@ -194,6 +194,12 @@ rec {
args = { name = ""; }; }).options;
};
enum = values: mkOptionType {
name = "one of ${concatStringsSep ", " values}.";
check = flip elem values;
merge = mergeOneOption;
};
# Obsolete alternative to configOf. It takes its option
# declarations from the ‘options’ attribute of containing option
# declaration.