oursh 0.4.4

Modern, fast POSIX compatible shell
Documentation 
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#[macro_export]
macro_rules! shell {
    ($executable:expr, $args:expr, $text:expr) => {{
        use std::io::Write;
        use std::process::{Command, Stdio};

        let mut child = Command::new($executable)
            .args($args)
            .stdin(Stdio::piped())
            .stdout(Stdio::piped())
            .stderr(Stdio::piped())
            .spawn()
            .expect("error swawning oursh process");

        {
            let stdin = child.stdin.as_mut()
                .expect("error opening stdin");
            stdin.write_all($text.as_bytes())
                .expect("error writing to stdin");
        }

        let output = child.wait_with_output()
            .expect("error reading stdout");

        output
    }};
    (> $executable:expr, $args:expr, $filename:expr) => {{
        use std::process::{Command, Stdio};

        let child = Command::new($executable)
            .arg($filename)
            .args($args)
            .stdout(Stdio::piped())
            .stderr(Stdio::piped())
            .spawn()
            .expect("error swawning oursh process");

        let output = child.wait_with_output()
            .expect("error reading stdout");

        output
    }};
}

#[macro_export]
macro_rules! oursh_release {
    ($text:expr) => {{
        shell!("target/release/oursh", &["--noprofile"], $text)
    }};
    // Run `oursh` on a script file argument and collect it's output.
    (> $filename:expr) => {{
        shell!(> "target/release/oursh", &["--noprofile"], $filename)
    }};
}

/// Run `oursh` and collect it's output for testing... Mmmmm testing.
#[macro_export]
macro_rules! oursh {
    ($text:expr) => {{
        shell!("target/debug/oursh", &["--noprofile"], $text)
    }};
    // Run `oursh` on a script file argument and collect it's output.
    (> $filename:expr) => {{
        shell!(> "target/debug/oursh", &["--noprofile"], $filename)
    }};
}

#[macro_export]
macro_rules! assert_oursh {
    (! $text:expr) => {{
        use std::process::Output;

        let Output { status, .. } = oursh!($text);
        assert!(!status.success());
    }};
    ($text:expr) => {{
        use std::process::Output;

        let Output { status, stdout, stderr } = oursh!($text);
        let stdout = String::from_utf8_lossy(&stdout);
        let stderr = String::from_utf8_lossy(&stderr);
        println!("stdout: {}\nstderr: {}", stdout, stderr);
        assert!(status.success());
    }};
    ($text:expr, $stdout:expr) => {{
        use std::process::Output;

        let Output { status, stdout, stderr } = oursh!($text);
        let stdout = String::from_utf8_lossy(&stdout);
        let stderr = String::from_utf8_lossy(&stderr);
        println!("stdout: {}\nstderr: {}", stdout, stderr);
        assert!(status.success());
        assert_eq!($stdout, stdout);
    }};
    ($text:expr, $stdout:expr, $stderr:expr) => {{
        use std::process::Output;

        let Output { status, stdout, stderr } = oursh!($text);
        let stdout = String::from_utf8_lossy(&stdout);
        let stderr = String::from_utf8_lossy(&stderr);
        println!("stdout: {}\nstderr: {}", stdout, stderr);
        assert!(status.success());
        assert_eq!($stdout, stdout);
        assert_eq!($stderr, stderr);
    }};
    (> ! $filename:expr) => {{
        use std::process::Output;

        let Output { status, .. } = oursh!(> $filename);
        assert!(!status.success());
    }};
    (> $filename:expr) => {{
        use std::process::Output;

        let Output { status, stdout, stderr } = oursh!($filename);
        let stdout = String::from_utf8_lossy(&stdout);
        let stderr = String::from_utf8_lossy(&stderr);
        println!("stdout: {}\nstderr: {}", stdout, stderr);
        assert!(status.success());
        assert!(stderr.is_empty());
    }};
    (> $filename:expr, $stdout:expr) => {{
        use std::process::Output;

        let Output { status, stdout, stderr } = oursh!(> $filename);
        let stdout = String::from_utf8_lossy(&stdout);
        let stderr = String::from_utf8_lossy(&stderr);
        println!("stdout: {}\nstderr: {}", stdout, stderr);
        assert!(status.success());
        assert_eq!($stdout, stdout);
        assert!(stderr.is_empty());
    }};
    (> $filename:expr, $stdout:expr, $stderr:expr) => {{
        use std::process::Output;

        let Output { status, stdout, stderr } = oursh!($filename);
        let stdout = String::from_utf8_lossy(&stdout);
        let stderr = String::from_utf8_lossy(&stderr);
        println!("stdout: {}\nstderr: {}", stdout, stderr);
        assert!(status.success());
        assert_eq!($stdout, stdout);
        assert_eq!($stderr, stderr);
    }};
}