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use serde_derive::{ Serialize, Deserialize };
use crate::backends::Backend;
use std::process::{ Command, Stdio };
use std::path::Path;
use std::io::{ Error, ErrorKind };
use std::fs::File;
use log::trace;
#[derive(Debug, Serialize, Deserialize, Default)]
pub struct PythonBackend {
template: Option<String>,
version: Option<String>,
}
impl Backend for PythonBackend {
fn get_template(&self) -> Option<&str> {
match self.template {
Some(ref t) => Some(t),
None => None
}
}
fn run(&self, fname: &Path) -> std::io::Result<()> {
let interpreter = format!("python{}", self.version.as_ref().unwrap_or(&String::new()));
let stdio = match self.try_guess_test_file(fname) {
Some(test_file) => Stdio::from(File::open(test_file)?),
None => Stdio::piped()
};
let timer = std::time::SystemTime::now();
let mut child = Command::new(interpreter)
.arg(fname.as_os_str())
.stdin(stdio)
.spawn()?;
let status = child.wait()?;
if !status.success() {
return Err(Error::new(ErrorKind::Other,
"Process exited with non-zero exit code"));
}
trace!("elapsed: {:#?}", timer.elapsed());
Ok(())
}
}
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