[sandbox] Add eslint

sandbox/.eslintignore

@@ -0,0 +1,13 @@
+.DS_Store
+node_modules
+/build
+/.svelte-kit
+/package
+.env
+.env.*
+!.env.example
+
+# Ignore files for PNPM, NPM and YARN
+pnpm-lock.yaml
+package-lock.json
+yarn.lock

sandbox/.eslintrc.cjs

@@ -0,0 +1,25 @@
+module.exports = {
+	env: {
+		es2021: true,
+		node: true
+	},
+	extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended'],
+	overrides: [
+		{
+			env: {
+				node: true
+			},
+			files: ['.eslintrc.{js,cjs}'],
+			parserOptions: {
+				sourceType: 'script'
+			}
+		}
+	],
+	parser: '@typescript-eslint/parser',
+	parserOptions: {
+		ecmaVersion: 'latest',
+		sourceType: 'module'
+	},
+	plugins: ['@typescript-eslint'],
+	rules: {}
+};

sandbox/package.json

@@ -7,6 +7,7 @@
 	"scripts": {
 		"build": "tsc",
 		"format": "prettier --write .",
+		"lint": "prettier --check . && eslint .",
 		"start": "node build"
 	},
 	"author": "",
@@ -14,6 +15,9 @@
 	"devDependencies": {
 		"@types/fs-extra": "^11.0.4",
 		"@types/node": "^20.11.2",
+		"@typescript-eslint/eslint-plugin": "^7.0.1",
+		"@typescript-eslint/parser": "^7.0.1",
+		"eslint": "^8.56.0",
 		"prettier": "^3.2.2",
 		"typescript": "^5.3.3"
 	},

sandbox/src/index.ts

@@ -111,7 +111,7 @@ async function cloneAndRun(submissionData: SubmissionGetData) {
 
 	try {
 		if (submissionData.submission.teamLanguage === 'Java') {
-			let res = await runJava({
+			const res = await runJava({
 				srcDir: repoDir,
 				mainFile: join(repoDir, problemName, problemName + '.java'),
 				mainClass: problemName,
@@ -123,7 +123,7 @@ async function cloneAndRun(submissionData: SubmissionGetData) {
 				runResult = res.runResult;
 			}
 		} else if (submissionData.submission.teamLanguage === 'CSharp') {
-			let res = await runCSharp({
+			const res = await runCSharp({
 				srcDir: join(repoDir, problemName),
 				input: submissionData.submission.problem.realInput
 			});
@@ -133,7 +133,7 @@ async function cloneAndRun(submissionData: SubmissionGetData) {
 				runResult = res.runResult;
 			}
 		} else if (submissionData.submission.teamLanguage === 'CPP') {
-			let res = await runCpp({
+			const res = await runCpp({
 				srcDir: repoDir,
 				input: submissionData.submission.problem.realInput,
 				cppPlatform: 'GCC',
@@ -213,7 +213,6 @@ if (!validateEnv()) {
 
 const adminUrl = process.env.ADMIN_URL as string;
 const repoUrl = process.env.REPO_URL as string;
-const javaBinPath = process.env.JAVA_PATH as string;
 
 const submissionApiUrl = urlJoin(adminUrl, 'api/submission');
 
@@ -279,6 +278,7 @@ async function run() {
 
 	let iterationsSinceProcessedSubmission = 0;
 	let anySubmissionsProcessed = false;
+	// eslint-disable-next-line no-constant-condition
 	while (true) {
 		switch (await processNextSubmission()) {
 			case SubmissionProcessingResult.SubmissionProcessed:

sandbox/src/run/cpp.ts

@@ -75,7 +75,7 @@ export const runCpp: IRunner<IRunnerParamsCpp> = async function (
 			outputBuffer += data.toString();
 		});
 
-		let runStartTime = performance.now();
+		const runStartTime = performance.now();
 		child.stdin.write(params.input);
 		child.stdin.end();
 
@@ -84,11 +84,11 @@ export const runCpp: IRunner<IRunnerParamsCpp> = async function (
 
 		return {
 			success: true,
-			runResult: new Promise<RunResult>(async (resolve) => {
+			runResult: new Promise<RunResult>((resolve) => {
 				child.on('close', () => {
 					completedNormally = !timeLimitExceeded;
 
-					let runEndTime = performance.now();
+					const runEndTime = performance.now();
 					const runtimeMilliseconds = Math.floor(runEndTime - runStartTime);
 
 					if (completedNormally) {
@@ -109,7 +109,7 @@ export const runCpp: IRunner<IRunnerParamsCpp> = async function (
 					}
 				});
 
-				let timeoutHandle = setTimeout(() => {
+				const timeoutHandle = setTimeout(() => {
 					if (completedNormally) {
 						return;
 					}

sandbox/src/run/csharp.ts

@@ -1,6 +1,3 @@
-import * as fs from 'fs-extra';
-import { join } from 'path';
-import os = require('os');
 import { spawn } from 'child_process';
 import kill from 'tree-kill';
 import { RunResult, timeoutSeconds } from '../index.js';
@@ -27,7 +24,7 @@ export const runCSharp: IRunner = async function (params: {
 			params.outputCallback?.(data.toString());
 		});
 
-		let runStartTime = performance.now();
+		const runStartTime = performance.now();
 		child.stdin.write(params.input);
 		child.stdin.end();
 
@@ -40,7 +37,7 @@ export const runCSharp: IRunner = async function (params: {
 				child.on('close', () => {
 					completedNormally = !timeLimitExceeded;
 
-					let runEndTime = performance.now();
+					const runEndTime = performance.now();
 					const runtimeMilliseconds = Math.floor(runEndTime - runStartTime);
 
 					if (completedNormally) {
@@ -61,7 +58,7 @@ export const runCSharp: IRunner = async function (params: {
 					}
 				});
 
-				let timeoutHandle = setTimeout(() => {
+				const timeoutHandle = setTimeout(() => {
 					if (completedNormally) {
 						return;
 					}

sandbox/src/run/java.ts

@@ -47,7 +47,7 @@ export const runJava: IRunner<IRunnerParamsJava> = async function (
 			outputBuffer += data.toString();
 		});
 
-		let runStartTime = performance.now();
+		const runStartTime = performance.now();
 		child.stdin.write(params.input);
 		child.stdin.end();
 
@@ -56,11 +56,11 @@ export const runJava: IRunner<IRunnerParamsJava> = async function (
 
 		return {
 			success: true,
-			runResult: new Promise<RunResult>(async (resolve) => {
+			runResult: new Promise<RunResult>((resolve) => {
 				child.on('close', () => {
 					completedNormally = !timeLimitExceeded;
 
-					let runEndTime = performance.now();
+					const runEndTime = performance.now();
 					const runtimeMilliseconds = Math.floor(runEndTime - runStartTime);
 
 					if (completedNormally) {
@@ -81,7 +81,7 @@ export const runJava: IRunner<IRunnerParamsJava> = async function (
 					}
 				});
 
-				let timeoutHandle = setTimeout(() => {
+				const timeoutHandle = setTimeout(() => {
 					if (completedNormally) {
 						return;
 					}