anchor.diff:            buildArgs = args;
           };
         } ''
  +        # Print tar contents:
  +        # 1: Interpreted as relative to the root directory
  +        # 2: With no trailing slashes on directories
  +        # This is useful for ensuring that the output matches the values generated by the "find" command
  +        ls_tar() {
  +            for f in $(tar -tf $1 | xargs realpath -ms --relative-to=.); do
  +                if [ "$f" != "." ]; then
  +                    echo "/$f"
  +                fi
  +            done
  +        }
  +      
           mkdir image
           touch baseFiles
           if [ -n "$fromImage" ]; then
  
positive.code:           parentID=$(jshon -e $fromImageName -e $fromImageTag -u < image/repositories)
            
            for l in image/*/layer.tar; do
              tar -tf $l >> baseFiles
            done
          fi
  
  
negative.code:                then mkPureLayer { inherit baseJson contents extraCommands; }
                 else mkRootLayer { inherit baseJson fromImage fromImageName fromImageTag contents runAsRoot diskSize extraCommands; });
        result = runCommand "${baseName}.tar.gz" {
          buildInputs = [ jshon pigz coreutils findutils ];
  
          imageName = name;
          imageTag = tag;
  