npingler: install shell completions

{

  lib,

  stdenv,

  buildPackages,

  rustPlatform,

  fetchFromGitHub,

  installShellFiles,

  nix-update-script,

}:

let

  emulatorAvailable = stdenv.hostPlatform.emulatorAvailable buildPackages;

  emulator = stdenv.hostPlatform.emulator buildPackages;

in

rustPlatform.buildRustPackage (finalAttrs: {

  pname = "npingler";

  version = "0.4.0";

  cargoHash = "sha256-Fs5LPy9dX2hRyMo/YASQesXQoklqYDV78eXnlecet0E=";

  nativeBuildInputs = [

    installShellFiles

  ];

  postInstall = lib.optionalString emulatorAvailable ''

    installShellCompletion --cmd npingler \

      --bash <(${emulator} $out/bin/npingler util generate-completions bash) \

      --fish <(${emulator} $out/bin/npingler util generate-completions fish) \

      --zsh  <(${emulator} $out/bin/npingler util generate-completions zsh)

  '';

  meta = {

    description = "Nix profile manager for use with npins";

    homepage = "https://github.com/9999years/npingler";