This is requires if you have attribute names with dots in them. So you can now say: $ nix-instantiate '<nixos>' -A 'config.systemd.units."postgresql.service".text' --eval-only Fixes #151.
		
			
				
	
	
		
			29 lines
		
	
	
	
		
			780 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			29 lines
		
	
	
	
		
			780 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
| with import ./config.nix;
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| 
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| rec {
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| 
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|   printRefs =
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|     ''
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|       echo $exportReferencesGraph
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|       while read path; do
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|           read drv
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|           read nrRefs
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|           echo "$path has $nrRefs references"
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|           echo "$path" >> $out
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|           for ((n = 0; n < $nrRefs; n++)); do read ref; echo "ref $ref"; test -e "$ref"; done
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|       done < refs
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|     '';
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| 
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|   foo."bar.runtimeGraph" = mkDerivation {
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|     name = "dependencies";
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|     builder = builtins.toFile "build-graph-builder" "${printRefs}";
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|     exportReferencesGraph = ["refs" (import ./dependencies.nix)];
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|   };
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| 
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|   foo."bar.buildGraph" = mkDerivation {
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|     name = "dependencies";
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|     builder = builtins.toFile "build-graph-builder" "${printRefs}";
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|     exportReferencesGraph = ["refs" (import ./dependencies.nix).drvPath];
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|   };
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| 
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| }
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