anchor.diff:          '';
   
           postInstall = ''
  -          mkdir -p $bin/share/bash-completion/completions
  -          mkdir -p $bin/share/zsh/site-functions
  -          $bin/bin/kops completion bash > $bin/share/bash-completion/completions/kops
  -          $bin/bin/kops completion zsh > $bin/share/zsh/site-functions/_kops
  +          for shell in bash zsh; do
  +            $bin/bin/kops completion $shell > kops.$shell
  +            installShellCompletion kops.$shell
  +          done
           '';
   
           meta = with stdenv.lib; {
  
positive.code:           inherit sha256;
          };
  
          nativeBuildInputs = [ go-bindata ];
          subPackages = [ "cmd/kops" ];
  
          buildFlagsArray = ''
  
negative.code: { stdenv, lib, buildGoPackage, fetchFromGitHub, go-bindata, installShellFiles }:
  
  let
    goPackagePath = "k8s.io/kops";
  