Crate envoption [−] [src]
Enums
| EnvOptionError | |
| OptionType |
The behavior if the environment variable is not set. |
Functions
| get |
Get an environment variable, using the given mode to determine behavior when it is not set. |
| optional |
Get an environment variable, returning |
| require |
Get an environment variable, and return an error if it doesn't exist. |
| with_default |
Get an environment variable, returning a default value if it doesn't exist. |