libcros 0.6.4

A Rust library that provides easy-to-use functions for interacting with a Chrome device
Documentation 
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use std::process::{Command, ExitStatus, Stdio};

fn bash_command(command: &str, live_output: bool) -> Command {
  let mut cmd = Command::new("bash");
  cmd.arg("-c").arg(command);

  if live_output {
    cmd
      .stdin(Stdio::inherit())
      .stdout(Stdio::inherit())
      .stderr(Stdio::inherit());
  }

  cmd
}

/// Run a shell command.
/// Returns output text or error text.
pub fn execute_cmd_stdio(command: &str, live_output: bool) -> String {
  if live_output {
    let status = bash_command(command, true).status();

    match status {
      Ok(s) if s.success() => "".to_string(),
      Ok(s) => format!("process exited with status: {}", s),
      Err(e) => format!("error executing command: {}", e),
    }
  } else {
    match bash_command(command, false).output() {
      Ok(output) => {
        if output.status.success() {
          String::from_utf8_lossy(&output.stdout).to_string()
        } else {
          String::from_utf8_lossy(&output.stderr).to_string()
        }
      }
      Err(e) => format!("error executing command: {}", e),
    }
  }
}

/// Run a shell command and return exit code.
/// Returns -1 on failure.
pub fn execute_cmd_rc(command: &str, live_output: bool) -> i32 {
  if live_output {
    match bash_command(command, true).status() {
      Ok(s) => s.code().unwrap_or(-1),
      Err(_) => -1,
    }
  } else {
    match bash_command(command, false).output() {
      Ok(output) => output.status.code().unwrap_or(-1),
      Err(_) => -1,
    }
  }
}

/// Spawn /bin/bash and wait for exit.
pub fn spawn_bash_shell() -> ExitStatus {
  let err = Command::new("/bin/bash")
    .spawn()
    .expect("failed to spawn bash")
    .wait()
    .expect("failed to wait on bash");

  return err;
}