1 unstable release
0.0.0 | Aug 31, 2019 |
---|
#422 in #parse
5KB
envopt
Parse environment variables by defining a struct.
Example
use envopt::EnvOpt;
#[derive(EnvOpt)]
pub enum EnvOpts {
#[envopt(name = "FOO")]
Foo,
#[envopt(name = "BAR", default = "default-bar")]
Bar,
}
pub fn main() {
EnvOpts::validate_or_exit();
println!("FOO: {}", EnvOpts::Foo.value_or_exit());
println!("BAR: {}", EnvOpts::Bar.value_or_exit());
}
lib.rs
:
Parse environment variables by defining a struct.
Example
use envopt::EnvOpt;
#[derive(EnvOpt)]
pub enum EnvOpts {
#[envopt(name = "FOO")]
Foo,
#[envopt(name = "BAR", default = "default-bar")]
Bar,
}
pub fn main() {
EnvOpts::validate_or_exit();
println!("FOO: {}", EnvOpts::Foo.value_or_exit());
println!("BAR: {}", EnvOpts::Bar.value_or_exit());
}
Dependencies
~1.5MB
~36K SLoC