judge: optional copyOut (#153)

* NOTICE: please upgrade sandbox to at lease v1.2.0

packages/hydrojudge/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
     "bin": "bin/hydrojudge.js",
-    "version": "2.8.1",
+    "version": "2.8.2",
     "main": "package.json",
     "author": "undefined <i@undefined.moe>",
     "repository": "https://github.com/hydro-dev/Hydro.git",

packages/hydrojudge/src/judge/default.ts

@@ -37,7 +37,7 @@ function judgeCase(c, sid) {
         const { filename } = ctx.config;
         const copyIn = { ...ctx.execute.copyIn };
         if (filename) copyIn[`${filename}.in`] = c.input ? { src: c.input } : { content: '' };
-        const copyOut = filename ? [`${filename}.out`] : [];
+        const copyOut = filename ? [`${filename}.out?`] : [];
         const stdin = filename ? null : c.input;
         const stdout = path.resolve(ctx.tmpdir, `${c.id}.out`);
         const stderr = path.resolve(ctx.tmpdir, `${c.id}.err`);

packages/hydrojudge/src/judge/run.ts

@@ -55,7 +55,7 @@ export const judge = async (ctx) => {
     const copyIn = { ...ctx.execute.copyIn };
     const { filename } = ctx.config;
     if (filename) copyIn[`${filename}.in`] = { content: ctx.input };
-    const copyOut = filename ? [`${filename}.out`] : [];
+    const copyOut = filename ? [`${filename}.out?`] : [];
     const stdin = path.resolve(ctx.tmpdir, '0.in');
     await fs.writeFile(stdin, ctx.input || '');
     const stdout = path.resolve(ctx.tmpdir, '0.out');

packages/hydrojudge/src/sandbox.ts

@@ -10,6 +10,7 @@ import { Logger } from './log';
 const argv = cac().parse();
 const logger = new Logger('sandbox');
 let callId = 0;
+let supportOptional = false;
 
 const statusMap = {
     'Time Limit Exceeded': STATUS.STATUS_TIME_LIMIT_EXCEEDED,
@@ -29,6 +30,9 @@ function proc({
     process_limit = 32,
     stdin = '', copyIn = {}, copyOut = [], copyOutCached = [],
 } = {}) {
+    if (!supportOptional) {
+        copyOut = (copyOut as string[]).map((i) => (i.endsWith('?') ? i.substr(0, i.length - 1) : i));
+    }
     const size = parseMemoryMB(getConfig('stdio_size'));
     return {
         args: cmd(execute.replace(/\$\{dir\}/g, '/w')),
@@ -112,6 +116,11 @@ export async function run(execute, params?) {
     // eslint-disable-next-line no-return-await
     if (typeof execute === 'object') return await runMultiple(execute);
     try {
+        if (!supportOptional) {
+            const res = await Axios.create({ baseURL: getConfig('sandbox_host') }).get('/version');
+            supportOptional = res.data.copyOutOptional;
+            if (!supportOptional) logger.warn('Sandbox version tooooooo low! Please upgrade to at least 1.2.0');
+        }
         const body = { cmd: [proc({ execute, ...params })] };
         const id = callId++;
         if (argv.options['show-sandbox-call']) logger.debug('%d %s', id, JSON.stringify(body));