53 lines
1.2 KiB
Nix
53 lines
1.2 KiB
Nix
{
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lib,
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pkgs,
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...
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}:
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rec {
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_mkPy = type: value: {
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_pyType = type;
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_value = value;
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};
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_isPy = value: lib.isAttrs value && lib.hasAttr "_pyType" value;
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_mkValue = value:
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if _isPy value then
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value
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else if lib.isStringLike value then
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_mkPy "str" value
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else if lib.isInt value then
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_mkPy "int" value
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else if lib.isBool value then
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_mkPy "bool" value
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else if value == null then
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_mkPy "null" null
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else if lib.isList value then
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_mkPy "list" (lib.map _mkValue value)
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else if lib.isAttrs value then
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_mkPy "dict" (lib.mapAttrs (_: _mkValue) value)
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else
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abort "unsupported type";
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_mkVars = lib.mapAttrs (_: _mkValue);
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mkReadCred = path:
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_mkPy "read-cred" (if lib.isStringLike path then
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path
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else
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abort "invalid path type");
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generate = name: value:
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pkgs.callPackage ({ runCommand, python3, black }:
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runCommand name {
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nativeBuildInputs = [ python3 black ];
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value = builtins.toJSON (_mkVars value);
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codegen = builtins.readFile ./codegen.py;
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passAsFile = [ "codegen" "value" ];
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preferLocalBuild = true;
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} ''
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python3 $codegenPath $valuePath > $out
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black $out
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'') { };
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}
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