git.delta.rocks / jrsonnet / refs/commits / 79e339a14c35

13impl FromStr for ExtStr {13impl FromStr for ExtStr {
14	type Err = &'static str;14	type Err = &'static str;
15	fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {15	fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
16		let out: Vec<_> = s.split('=').collect();
17		match out.len() {16		match s.find('=') {
18			1 => Ok(ExtStr {17			Some(idx) => Ok(ExtStr {
19				name: out[0].to_owned(),18				name: s[..idx].to_owned(),
20				value: std::env::var(out[0]).or(Err("missing env var"))?,19				value: s[idx + 1..].to_owned(),
21			}),20			}),
22			2 => Ok(ExtStr {21			None => Ok(ExtStr {
23				name: out[0].to_owned(),22				name: s.to_owned(),
24				value: out[1].to_owned(),23				value: std::env::var(s).or(Err("missing env var"))?,
25			}),24			}),
26
27			_ => Err("bad ext-str syntax"),
28		}25		}
29	}26	}
30}27}