def ensure_env_var()

in stash/restore/get_stash.py [0:0]

• 5 lines of code
• 3 McCabe index (conditional complexity)

def ensure_env_var(var: str) -> str:
    """Return value of envvar `var`, throw if it's not set."""
    value = os.environ.get(var)
    if value is None or len(value) == 0:
        raise ValueError(f"Environment variable {var} is not set")
    return value