fn try_dockers()

in akd_mysql/src/mysql.rs [571:606]

• 33 lines of code
• 3 McCabe index (conditional complexity)

    fn try_dockers() -> std::io::Result<std::process::Output> {
        let potential_docker_paths = vec![
            "/usr/local/bin/docker",
            "/usr/bin/docker",
            "/sbin/docker",
            "/bin/docker",
            "docker",
        ];

        let mut output = Err(std::io::Error::from_raw_os_error(2));

        for path in potential_docker_paths {
            output = Command::new(path)
                // Name filter lists containers containing the name. See https://docs.docker.com/engine/reference/commandline/ps/.
                // Therefore, a container with a name like akd-test-dbc would match but would be wrong.
                // This regex ensures exact match.
                .args(["container", "ls", "-f", "name=^/akd-test-db$"])
                .output();
            match &output {
                Ok(result) => {
                    if let (Ok(out), Ok(err)) = (
                        std::str::from_utf8(&result.stdout),
                        std::str::from_utf8(&result.stderr),
                    ) {
                        info!("Docker ls output\nSTDOUT: {}\nSTDERR: {}", out, err);
                    }
                    break;
                }
                Err(err) => {
                    warn!("Docker ls returned error \"{:?}\"\nTrying next possible docker command location", err);
                }
            }
        }

        output
    }