flakes/lib/flake.nix

   1 {
   2   inputs.nixpkgs.url = "github:NixOS/nixpkgs";
   3
   4   description = "Useful libs";
   5   outputs = { self, nixpkgs }: {
   6     lib = rec {
   7       withNarKeyCompat = flakeCompat: path: moduleAttrs:
   8         let module = (flakeCompat path).${moduleAttrs};
   9             key = builtins.hashString "sha256" (builtins.path { inherit path; name = "source"; });
  10         in if builtins.isFunction module
  11           then args@{ config, lib, pkgs, ... }: (module args // { inherit key; })
  12           else module // { inherit key; };
  13
  14       withNarKey = dep: moduleAttrs:
  15         let module = dep.${moduleAttrs};
  16             key = builtins.hashString "sha256" (builtins.path { path = dep.sourceInfo.outPath; name = "source"; });
  17         in if builtins.isFunction module
  18           then args@{ config, lib, pkgs, ... }: (module args // { inherit key; })
  19           else module // { inherit key; };
  20     };
  21   };
  22 }