fix(compile): fix compile error

.changes/compile.md

@@ -0,0 +1,5 @@
+---
+"eval-stack": patch:fix
+---
+
+Fixed compile error caused some compiler don't recognize unknown file extension.

.changes/lang.md

@@ -0,0 +1,5 @@
+---
+"eval-stack": patch:fix
+---
+
+Fixed `serde` renaming to `lowercase` instead of `camelCase`.

.changes/runtime.md

@@ -0,0 +1,5 @@
+---
+"eval-stack": patch:chore
+---
+
+Specify the release profile in `Cargo.toml` to improve the performance.

.config/config.toml

@@ -0,0 +1,2 @@
+[build]
+rustflags = ["-C", "target-cpu=native", "-Z", "threads=8"]

.cspell.json

@@ -4,6 +4,7 @@
         "bitcode",
         "chdir",
         "chrono",
+        "codegen",
         "covector",
         "fmax",
         "getuid",

Cargo.toml

@@ -26,3 +26,12 @@ futures = { version = "0.3.31", optional = true }
 default = ["engine"]
 engine = ["surrealdb", "serde", "chrono", "futures"]
 serde = ["dep:serde"]
+
+[profile.release]
+lto = "fat"
+opt-level = 3
+debug = false
+debug-assertions = false
+overflow-checks = false
+panic = "abort"
+codegen-units = 1

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "nightly"
+components = ["rustfmt", "clippy"]

src/compile.rs

@@ -1,15 +1,13 @@
 use std::{
-    env,
-    path::{Path, PathBuf},
-    process::Stdio,
+    env, ffi::OsStr, path::{Path, PathBuf}, process::Stdio
 };
 
 use anyhow::Result;
 use tokio::{fs::File, io, process::Command};
 
 #[derive(Default, Debug, Clone, Copy)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
-#[cfg_attr(feature = "serde", serde(rename_all = "snake_case"))]
+#[cfg_attr(feature = "serde", serde(rename_all = "lowercase"))]
 pub enum Language {
     #[default]
     Rust,
@@ -98,13 +96,15 @@ pub async fn compile<B: Into<PathBuf>, S: Into<PathBuf>, O: AsRef<str>>(
             Some(command)
         }
         Language::Java => {
-            let java_path = base_path.join("Main.java");
             let mut command = Command::new("javac");
-            io::copy(
-                &mut File::open(source_path_str.as_ref()).await?,
-                &mut File::create(&java_path).await?,
-            )
-            .await?;
+            let java_path = base_path.join("Main.java");
+            if source_path.file_name() != Some(OsStr::new("Main.java")) {
+                io::copy(
+                    &mut File::open(source_path_str.as_ref()).await?,
+                    &mut File::create(&java_path).await?,
+                )
+                .await?;
+            }
             command.arg(java_path.to_string_lossy().as_ref());
             Some(command)
         }

src/engine/runtime.rs

@@ -12,6 +12,7 @@ use tokio::fs::File;
 use tokio::io::AsyncWriteExt;
 
 use crate::case::run_test_cases;
+use crate::compile::Language;
 use crate::config::JudgeOptions;
 use crate::engine::models::Status;
 use crate::judge::{JudgeResult, JudgeStatus};
@@ -71,7 +72,15 @@ pub async fn handle_submission(
         create_dir_all(&workspace)?;
     }
 
-    let source_file_path = workspace.join("source.code");
+    let source_file_path = workspace.join(match submission.lang {
+        Language::C => "main.c",
+        Language::CPP => "main.cpp",
+        Language::Java => "Main.java",
+        Language::Python => "main.py",
+        Language::Rust => "main.rs",
+        Language::NodeJs => "main.js",
+        Language::Golang => "main.go",
+    });
     let mut file = File::create(&source_file_path).await?;
     file.write_all(submission.code.as_bytes()).await?;