rura 1.6.0

Interactive TUI pipeline editor built for rapid iteration
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use crate::rura::RuraCommand;
use crate::shell::builder::CommandBuilder;
use crate::shell::cmd_runner::{CmdResult, CmdRunner};
use crate::shell::exec::Exec;
use log::{debug, info};
use std::sync::Arc;
use std::time::SystemTime;

#[allow(dead_code)]
pub struct SimpleCmdRunner {
    exec: Box<dyn Exec>,
    builder: Box<dyn CommandBuilder>,
    stdin: Arc<[u8]>,
}

impl SimpleCmdRunner {
    #[cfg(windows)]
    pub fn new(shell: &str, stdin: Arc<[u8]>) -> Self {
        use crate::shell::builder::PwshCommandBuilder;
        use crate::shell::exec::SystemExec;
        SimpleCmdRunner {
            exec: Box::new(SystemExec),
            builder: Box::new(PwshCommandBuilder {
                shell: shell.into(),
            }),
            stdin,
        }
    }
}

impl CmdRunner for SimpleCmdRunner {
    fn run(&self, command: &RuraCommand) -> anyhow::Result<CmdResult> {
        info!("executing: '{command:?}'");

        if command.is_empty() {
            return Ok(CmdResult {
                stdin: self.stdin.clone(),
                outputs: vec![],
            });
        }

        let now = SystemTime::now();

        let cmd = self.builder.build(&command.to_string());
        let output = self.exec.exec(cmd, self.stdin.clone())?;

        let elapsed = now.elapsed()?;
        debug!("command exec took {elapsed:?}");

        Ok(CmdResult {
            stdin: self.stdin.clone(),
            outputs: vec![output],
        })
    }
}

#[cfg(test)]
mod tests {
    use crate::shell::builder::TestBuilder;
    use crate::shell::cmd_runner::CmdRunner;
    use crate::shell::exec::Exec;
    use crate::shell::exec::MockExec;
    use crate::shell::output::Output;
    use crate::shell::simple_runner::SimpleCmdRunner;
    use std::cell::RefCell;
    use std::rc::Rc;
    use std::sync::Arc;

    fn simple_runner(exec: Box<dyn Exec>, stdin: Arc<[u8]>) -> SimpleCmdRunner {
        SimpleCmdRunner {
            exec,
            stdin,
            builder: Box::new(TestBuilder {}),
        }
    }

    #[test]
    fn test_ok_command() {
        let calls = Rc::new(RefCell::new(vec![]));
        let mock_exec = MockExec {
            calls: calls.clone(),
        };
        let runner = simple_runner(Box::new(mock_exec), Arc::from("stdin".as_bytes()));

        let result = runner.run(&"echo hello".into()).unwrap();

        assert_eq!(result.stdin, Arc::from("stdin".as_bytes()));
        assert_eq!(result.outputs, vec![Output::ok_str("echo hello-output")])
    }

    #[test]
    fn test_run_empty_command() {
        let calls = Rc::new(RefCell::new(vec![]));
        let mock_exec = MockExec {
            calls: calls.clone(),
        };
        let runner = simple_runner(Box::new(mock_exec), Arc::from("stdin".as_bytes()));

        let result = runner.run(&vec![].into()).unwrap();

        assert_eq!(result.stdin, Arc::from("stdin".as_bytes()));
        assert_eq!(result.outputs, vec![])
    }
}