From 10cc70b5478c25a9c29197492c792fe39b1c292c Mon Sep 17 00:00:00 2001
From: Menci <HuangHaoRui301@Gmail.com>
Date: Sat, 15 Jul 2017 09:12:11 +0800
Subject: [PATCH] Fix download a testdata with no files causes zip the full
 syzoj dir

---
 models/problem.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/models/problem.js b/models/problem.js
index 1b200d2..515b8d6 100644
--- a/models/problem.js
+++ b/models/problem.js
@@ -374,8 +374,9 @@ class Problem extends Model {
 
       let p7zip = new (require('node-7z'));
 
-      let list = await this.listTestdata(), path = require('path');
-      await p7zip.add(dir + '.zip', list.files.map(file => path.join(dir, file.filename)));
+      let list = await this.listTestdata(), path = require('path'), pathlist = list.files.map(file => path.join(dir, file.filename));
+      if (!pathlist.length) throw new ErrorMessage('无测试数据。');
+      await p7zip.add(dir + '.zip', pathlist);
     });
   }