toKeyValue

lib.generators.toKeyValue

Docs pulled from | This Revision | 16 minutes ago

Generate a key-value-style config file from an attrset.

Inputs

Structured function argument

mkKeyValue (optional, default: mkKeyValueDefault {} "="): format a setting line from key and value

listsAsDuplicateKeys (optional, default: false): allow lists as values for duplicate keys

indent (optional, default: ""): Initial indentation level

Noogle detected

Implementation

The following is the current implementation of this function.

toKeyValue =
    {
      mkKeyValue ? mkKeyValueDefault { } "=",
      listsAsDuplicateKeys ? false,
      indent ? "",
    }:
    let
      mkLine = k: v: indent + mkKeyValue k v + "\n";
      mkLines =
        if listsAsDuplicateKeys then
          k: v: map (mkLine k) (if isList v then v else [ v ])
        else
          k: v: [ (mkLine k v) ];
    in
    attrs: concatStrings (concatLists (mapAttrsToList mkLines attrs));