Function output 

pub fn output(
    program: &str,
    args: &[&str],
    dir: &Path,
    env: &[(&str, &str)],
) -> Result<String>

Runs an external command and captures its stdout as a String.

Stderr is inherited (printed to the terminal). The returned string has leading/trailing whitespace trimmed.

Errors

Returns an error if the process cannot be spawned, exits with a non-zero status, or produces non-UTF-8 output.

Examples

use std::path::Path;
use xtask_lib::tasks::util::cmd::output;

let version = output("cargo", &["--version"], Path::new("."), &[])?;
assert!(version.starts_with("cargo "));