def execute_command(working_dir, cmd, env_dict):
    """
    execute_command: run the command provided in the working dir
    specified adding the env_dict settings to the
    execution environment

    :param working_dir: path to directory to execute command
       also gets added to the PATH
    :param cmd: Shell command to execute
    :param env_dict: dictionary of additional env vars to
      be passed to the subprocess environment

    """
    proc_env = os.environ.copy()
    proc_env["PATH"] = "{}:{}:.".format(proc_env["PATH"], working_dir)
    proc_env.update(env_dict)
    proc = subprocess.Popen(
        cmd,
        cwd=working_dir,
        env=proc_env,
        shell=True,
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
    )
    status = proc.wait()
    stdout, stderr = proc.communicate()
    if status:
        msg = (
            "Non zero {} exit from command {}\n"
            "Stdout: {}\n"
            "Stderr: {}\n"
        ).format(status, cmd, stdout, stderr)
        LOGGER.error(msg)
        raise RuntimeError(msg)
    LOGGER.info(stdout)