code_executor/
compiler.rs

1use std::{path::PathBuf, process::Stdio};
2
3use tokio::{fs, io::AsyncWriteExt, process::Command};
4
5use crate::{CommandArgs, Error, Result, util};
6
7#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8pub struct Compiler<'a> {
9    pub main_file: &'a str,
10    pub args: Option<CommandArgs<'a>>,
11}
12
13impl Compiler<'_> {
14    #[tracing::instrument(err)]
15    async fn create_project(&self, code: &[u8]) -> Result<PathBuf> {
16        let project_path = util::generate_unique_path();
17
18        fs::create_dir_all(&project_path).await?;
19
20        let mut main_file_path = project_path.clone();
21        main_file_path.push(self.main_file);
22
23        let mut main_file = fs::OpenOptions::new()
24            .create_new(true)
25            .write(true)
26            .open(&main_file_path)
27            .await?;
28
29        main_file.write_all(code).await?;
30
31        Ok(project_path)
32    }
33
34    #[tracing::instrument(err)]
35    pub async fn compile(&self, code: &[u8]) -> Result<PathBuf> {
36        let project_path = self.create_project(code).await?;
37
38        let Some(CommandArgs {
39            binary: compiler,
40            args,
41        }) = self.args
42        else {
43            return Ok(project_path);
44        };
45
46        let process = Command::new(compiler)
47            .args(args)
48            .current_dir(&project_path)
49            .stderr(Stdio::piped())
50            .spawn()?;
51
52        let compilation_error = process.wait_with_output().await?.stderr;
53
54        if !compilation_error.is_empty() {
55            return Err(Error::Compilation {
56                message: String::from_utf8(compilation_error)?,
57            });
58        }
59
60        Ok(project_path)
61    }
62}