judge: ignore tmpfs error

packages/hydrojudge/package.json

@@ -1,11 +1,8 @@
 {
     "name": "@hydrooj/hydrojudge",
-    "version": "2.0.13",
+    "version": "2.0.14",
     "main": "package.json",
     "author": "masnn",
-    "os": [
-        "linux"
-    ],
     "dependencies": {
         "axios": "^0.20.0",
         "bson": "^4.1.0",

packages/hydrojudge/src/sysinfo.ts

@@ -20,9 +20,10 @@ const cache: any = {};
 
 async function stackSize() {
     let output = '';
-    const context: any = {
-        lang: 'ccWithoutO2',
-        code: `#include <iostream>
+    try {
+        const context: any = {
+            lang: 'ccWithoutO2',
+            code: `#include <iostream>
 using namespace std;
 int i=1;
 int main(){
@@ -32,25 +33,28 @@ int main(){
     if (i>256) return 0;
     main();
 }`,
-        config: {
-            time: 3000,
-            memory: 256,
-        },
-        stat: {},
-        clean: [],
-        next: (data) => {
-            if (data.case) output = data.case.message;
-        },
-        end: () => { },
-    };
-    context.tmpdir = path.resolve(tmpdir(), 'hydro', 'tmp', 'sysinfo');
-    fs.ensureDirSync(context.tmpdir);
-    tmpfs.mount(context.tmpdir, '64m');
-    await judge(context).catch((e) => console.error(e));
-    // eslint-disable-next-line no-await-in-loop
-    for (const clean of context.clean) await clean().catch();
-    tmpfs.umount(context.tmpdir);
-    fs.removeSync(context.tmpdir);
+            config: {
+                time: 3000,
+                memory: 256,
+            },
+            stat: {},
+            clean: [],
+            next: (data) => {
+                if (data.case) output = data.case.message;
+            },
+            end: () => { },
+        };
+        context.tmpdir = path.resolve(tmpdir(), 'hydro', 'tmp', 'sysinfo');
+        fs.ensureDirSync(context.tmpdir);
+        tmpfs.mount(context.tmpdir, '64m');
+        await judge(context).catch((e) => console.error(e));
+        // eslint-disable-next-line no-await-in-loop
+        for (const clean of context.clean) await clean().catch();
+        tmpfs.umount(context.tmpdir);
+        fs.removeSync(context.tmpdir);
+    } catch (e) {
+        return -1;
+    }
     const a = output.split(' ');
     return parseInt(a[a.length - 2], 10);
 }

packages/hydrojudge/src/tmpfs.ts

@@ -1,11 +1,17 @@
 import child from 'child_process';
 import fs from 'fs-extra';
+import os from 'os';
+import { Logger } from 'hydrooj/dist/logger';
+
+const logger = new Logger('judge');
+const linux = os.platform() === 'linux';
+if (!linux) logger.warn('Not running on linux. tmpfs disabled.');
 
 export function mount(path: string, size = '32m') {
     fs.ensureDirSync(path);
-    child.execSync(`mount tmpfs ${path} -t tmpfs -o size=${size}`);
+    if (linux) child.execSync(`mount tmpfs ${path} -t tmpfs -o size=${size}`);
 }
 
 export function umount(path: string) {
-    child.execSync(`umount ${path}`);
+    if (linux) child.execSync(`umount ${path}`);
 }