61 lines
1.7 KiB
Nix
61 lines
1.7 KiB
Nix
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{ pkgs, lib }:
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with lib;
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{ }: {
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inherit (pkgs.formats.json { }) type;
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generate = name: value: let
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valueToString = val:
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if val == null then
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"null"
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else if isString val then
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builtins.toJSON val
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else if isBool val then
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boolToString val
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else if isInt val || isFloat val then
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toString val
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else if isList val then
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"array(${concatMapStringsSep ", " valueToString val})"
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else if isAttrs val && val ? value && (val._type or "") == "raw" then
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val.value
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else if isAttrs val then
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throw "Found unexpected attrs, that were not created by mkRaw. Have you put attrs in an array?\n${val}"
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else throw "unsupported :')";
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flattenStructuredSettings = attrs: let
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partitionAttrs = pred: attrs: lib.pipe attrs [
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attrsToList
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(partition ({ name, value }: pred name value))
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(mapAttrs (_: listToAttrs))
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];
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partitionedAttrs = partitionAttrs (_: v: isAttrs v && !(v ? value && (v._type or "") == "raw")) attrs;
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flattenedAttrs = lib.pipe partitionedAttrs.right [
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(mapAttrs (n1: mapAttrs' (n2: v2: nameValuePair "${n1}_${n2}" v2)))
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attrValues
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(map flattenStructuredSettings)
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(foldl recursiveUpdate { })
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];
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in recursiveUpdate flattenedAttrs partitionedAttrs.wrong;
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content = lib.pipe value [
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flattenStructuredSettings
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(mapAttrs (_: valueToString))
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(mapAttrsToList (n: v: ''''$${n} = ${v};''))
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(concatStringsSep "\n")
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(content: "<?php\n${content}\n?>")
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];
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in pkgs.writeText name content;
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lib = {
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mkRaw = value: {
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inherit value;
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_type = "raw";
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};
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types.raw = lib.types.attrs;
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};
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}
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