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       withNarKey = dep: moduleAttrs:
   8         let module = dep.${moduleAttrs};
   9             key = builtins.hashString "sha256" (builtins.path { path = dep.sourceInfo.outPath; 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   };
  15 }