How to use makeWrapper in a startup script?

[poperigby]

When I add makeWrapper to my list of packages, the startup script isn't able to find the makeWrapper bash function.

devshells.default = {
  packagesFrom = [ config.packages.default ];

  packages = with pkgs; [
    gdb

    libsForQt5.wrapQtAppsHook
    makeWrapper
    bashInteractive
  ];

  devshell.startup.wrapQt.text = # bash
    ''
      # Set the environment variables that unpatched Qt apps expect
      bashdir=$(mktemp -d)
      makeWrapper "$(type -p bash)" "$bashdir/bash" "''${qtWrapperArgs[@]}"
      exec "$bashdir/bash"
    '';
};

[onemoresuza]

When I add `makeWrapper` to my list of packages, the startup script isn't able to find the `makeWrapper` bash function. ```nix devshells.default = { packagesFrom = [ config.packages.default ]; packages = with pkgs; [ gdb libsForQt5.wrapQtAppsHook makeWrapper bashInteractive ]; devshell.startup.wrapQt.text = # bash '' # Set the environment variables that unpatched Qt apps expect bashdir=$(mktemp -d) makeWrapper "$(type -p bash)" "$bashdir/bash" "''${qtWrapperArgs[@]}" exec "$bashdir/bash" ''; }; ```

The `pkgs.makeWrapper` derivation does not provide a `makeWrapper` file under `$out/bin`, since it provides only a setup-hook, thus, there's no makeWrapper to be used on the startup script. To make it available to your startup script, you'd have to source it like so: ```bash source "${pkgs.makeWrapper}/nix-support/setup-hook" ``` But do beware of sourcing setup-hooks: They're made to work only under the nixpkgs build environment, having no guarantees that they work outside of it.

[poperigby]

Thank you. That seems to just infinitely loop for some reason though 😢.