nix/home/program/bash/module/Try.nix

{ ... }:
{
  text = ''
    # Retry command every 2 sec until it completes successfully.
    # Usage: try <COMMAND>
    function try() {
      if [[ "''${*}" = "" ]]; then
        help try
        return 2
      fi

      local result=-1

      while [ "$result" != 0 ]; do
        ''${*}
        result=$?
        if [ "$result" != 0 ]; then
          sleep 2
        fi
      done
    }

    # autocomplete.
    complete -F _autocomplete_nested try
  '';
}