Function envmnt::set_or_remove

pub fn set_or_remove<K: AsRef<OsStr>, V: AsRef<OsStr>>(
    key: K,
    value: &Option<V>
) -> bool

Sets the environment variable if the provided option contains a value. If no value was provided, the environment variable will be removed.

Arguments

• key - The environment variable name
• value - The optional value to set, none to remove

Example

fn main() {
    let mut output = envmnt::set_or_remove("MY_ENV_VAR", &Some("OPTIONAL VALUE"));

    assert!(output);
    assert!(envmnt::is_equal(
        "MY_ENV_VAR",
        "OPTIONAL VALUE"
    ));

    output = envmnt::set_or_remove::<&str, &str>("MY_ENV_VAR", &None);

    assert!(!output);
    assert!(!envmnt::exists("MY_ENV_VAR"));
}