use std::fmt::{self, Display, Formatter}; use std::fs::{remove_file}; use std::path::{PathBuf}; use std::process::{self, Command, Output}; use serde::Deserialize; const RUSTC_COLOR_ARGS: &[&str] = &["--color", "always"]; fn temp_file() -> String { format!("./temp_{}", process::id()) } #[derive(Deserialize)] #[serde(rename_all = "lowercase")] pub enum Mode { Compile, Test, } #[derive(Deserialize)] pub struct ExerciseList { pub exercises: Vec, } #[derive(Deserialize)] pub struct Exercise { pub path: PathBuf, pub mode: Mode, } impl Exercise { pub fn compile(&self) -> Output { match self.mode { Mode::Compile => Command::new("rustc") .args(&[self.path.to_str().unwrap(), "-o", &temp_file()]) .args(RUSTC_COLOR_ARGS) .output(), Mode::Test => Command::new("rustc") .args(&["--test", self.path.to_str().unwrap(), "-o", &temp_file()]) .args(RUSTC_COLOR_ARGS) .output(), } .expect("Failed to run 'compile' command.") } pub fn run(&self) -> Output { Command::new(&temp_file()) .output() .expect("Failed to run 'run' command") } pub fn clean(&self) { let _ignored = remove_file(&temp_file()); } } impl Display for Exercise { fn fmt(&self, f: &mut Formatter) -> fmt::Result { write!(f, "{}", self.path.to_str().unwrap()) } } #[test] fn test_clean() { std::fs::File::create(&temp_file()).unwrap(); let exercise = Exercise { path: PathBuf::from("example.rs"), mode: Mode::Test, }; exercise.clean(); assert!(!std::path::Path::new(&temp_file()).exists()); }