default.nix

{ pkgs ? import <nixpkgs> {} }:

pkgs.stdenv.mkDerivation {
  name = "megacli2prom";
  buildInputs = [ pkgs.python3 pkgs.megacli ];
  src = pkgs.fetchFromGitHub {
    owner = "PrivateStorageio";
    repo = "megacli2prom";
    rev = "b845de8110050c7eb8aa655108515edcdb8f36be";
    # sha256 = "0000000000000000000000000000000000000000000000000000";
    sha256 = "1v208f9v75j56dj4bpyngrl3nkd343sipq9wvz7ay0ank4y5wddj";
  };
  prePatch = ''
    substituteInPlace ./megacli2prom.py \
      --replace '/opt/MegaRAID/MegaCli/MegaCli64' '${pkgs.megacli}/opt/MegaRAID/MegaCli/MegaCli64'
  '';
  installPhase = ''
    mkdir -p $out/bin
    cp ./megacli2prom.py $out/bin/megacli2prom
    chmod +x $out/bin/megacli2prom
  '';
}