···

       
1
       
1
       
 
       
#! /bin/sh

     

       
2
       
2
       
 
       


     

       
3
       
3
       
-
       
echo "let pkgs = import /etc/nixos/nixpkgs$2 {}; x = pkgs.callPackage $1 { $3 }; in ${4:-x}" |

     

       
3
       
3
       
+
       
echo "let pkgs = import <nixpkgs$2> {}; x = pkgs.callPackage $1 { $3 }; in ${4:-x}" |

     

       
4
       
4
       
 
       
nix-instantiate --show-trace - |

     

       
5
       
5
       
 
       
xargs nix-store -r -K