codedown-languages/default.nix at main · codedownio/codedown-languages · GitHub

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{ isCodeDown ? true # For introspection using builtins.functionArgs
, overlays ? []
, system ? null
, fetchFromGitHub ? null
, ...
}:

let
  stableRev = "f5190b692864072e79a2fb7c52d72d1d57fcb269"; # nixpkgs-rev
  stableFetchFromGitHub = fetchFromGitHub {
    owner = "NixOS";
    repo = "nixpkgs";
    rev = stableRev;
    hash = "sha256-6mqKLf7ukajFOrVjO7EH1i37CQOVG22AnuU3wR84xK0="; # nixpkgs-hash
  };
  stableBuiltins = builtins.fetchTarball {
    url = ''https://github.com/NixOS/nixpkgs/archive/${stableRev}.tar.gz'';
    sha256 = "1bf470gw2dz5ks06s6wm0c4znbfn0yqknqxm7b2si4gfzqnqlspa"; # nixpkgs-sha256
  };
  pkgsStableSrc = if fetchFromGitHub != null then stableFetchFromGitHub else stableBuiltins;
  pkgsStable = import pkgsStableSrc ({
    inherit overlays;
  } // (if system == null then {} else { inherit system; }));

  masterRev = "f4d46d85b687293bc8d872010fb66a4f23c23139"; # nixpkgs-master-rev
  masterFetchFromGitHub = fetchFromGitHub {
    owner = "NixOS";
    repo = "nixpkgs";
    rev = masterRev;
    hash = "sha256-j0P9+h7HX67KNlGki6puFfx8xO6wx4Jz23jXg3dpfCw="; # nixpkgs-master-hash
  };
  masterBuiltins = builtins.fetchTarball {
    url = ''https://github.com/NixOS/nixpkgs/archive/${masterRev}.tar.gz'';
    sha256 = "0b3wd5vq7mvqvdrq5ixhxv27rz0mdsm8p92i6v5awpy73vxgshwg"; # nixpkgs-master-sha256
  };
  pkgsMasterSrc = if fetchFromGitHub != null then masterFetchFromGitHub else masterBuiltins;
  pkgsMaster = import pkgsMasterSrc ({
    inherit overlays;
  } // (if system == null then {} else { inherit system; }));

in

pkgsStable.callPackage ./codedown.nix {
  inherit
    pkgsStableSrc pkgsStable
    pkgsMasterSrc pkgsMaster
  ;
}