mkUserEnvironment: polyfill for older versions of nix
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@ -21,6 +21,9 @@
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# Supporting code
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with builtins;
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let
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# back-compat
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isPath = builtins.isPath or (x: builtins.typeOf x == "path");
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# Escape Nix strings
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stringEscape = str:
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"\"" + (
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