INNER CODE UNIT · Rust

Some

logannye/rosalind · crates/build-info/src/lib.rs:37

            if let Some(reference) = head.strip_prefix("ref: ") {
                println!("cargo:rerun-if-changed=.git/{}", reference.trim());
            }
        }
    }
}

fn git(args: &[&str]) -> Option<String> {
    let output = Command::new("git").args(args).output().ok()?;
    output
        .status
        .success()
        .then(|| String::from_utf8_lossy(&output.stdout).trim().to_string())
}

fn rustc_version() -> Option<String> {
    let rustc = std::env::var("RUSTC").ok()?;
    let output = Command::new(rustc).arg("--version").output().ok()?;

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