feat(judge): add bwrap existence check on linux, mitigate (#272)

Author: alphagocc

src/core/judgingthread.cpp

@@ -20,6 +20,7 @@
 #include <QFile>
 #include <QFileInfo>
 #include <QRegularExpression>
+#include <QStandardPaths>
 #include <QTextStream>
 #include <QTime>
 #include <QUuid>
@@ -1086,9 +1087,17 @@ void JudgingThread::runProgram() {
 
 	qDebug() << argumentsList;
 
+	QString bwrapPath = QStandardPaths::findExecutable("bwrap");
+	if (bwrapPath.isEmpty()) {
+		score = 0;
+		result = CannotStartProgram;
+		message = tr("bwrap not found. Please install bubblewrap.");
+		return;
+	}
+
 	runner->setProcessEnvironment(environment);
 	runner->setWorkingDirectory(workingDirectory);
-	runner->start("/usr/bin/bwrap", argumentsList);
+	runner->start(bwrapPath, argumentsList);
 
 #else
 

translations/en_US.ts

@@ -1290,7 +1290,7 @@ Depends: </source>
     </message>
     <message>
         <source>Contestant %3 Test case %1.%2: </source>
-        <translation type="unfinished"></translation>
+        <translation></translation>
     </message>
 </context>
 <context>
@@ -1351,6 +1351,10 @@ Depends: </source>
         <source>Cannot copy standard input file</source>
         <translation></translation>
     </message>
+    <message>
+        <source>bwrap not found. Please install bubblewrap.</source>
+        <translation></translation>
+    </message>
 </context>
 <context>
     <name>LemonLime</name>

translations/zh_CN.ts

@@ -1376,6 +1376,10 @@ Depends: </source>
         <source>Cannot copy standard input file</source>
         <translation>无法复制标准输入文件</translation>
     </message>
+    <message>
+        <source>bwrap not found. Please install bubblewrap.</source>
+        <translation>bwrap 未找到。请安装 Bubblewarp。</translation>
+    </message>
 </context>
 <context>
     <name>LemonLime</name>

translations/zh_TW.ts

@@ -508,6 +508,10 @@
         <source>New configuration %1</source>
         <translation>新建配置 %1</translation>
     </message>
+    <message>
+        <source>Interpreter As Watcher</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>CompilerSettings</name>
@@ -1372,6 +1376,10 @@ Depends: </source>
         <source>Cannot copy standard input file</source>
         <translation>無法複製標準輸入檔案</translation>
     </message>
+    <message>
+        <source>bwrap not found. Please install bubblewrap.</source>
+        <translation>bwrap 未找到。請安裝 Bubblewrap。</translation>
+    </message>
 </context>
 <context>
     <name>LemonLime</name>
@@ -2513,11 +2521,11 @@ p, li { white-space: pre-wrap; }
     <name>TaskJudger</name>
     <message>
         <source>Preparing...</source>
-        <translation type="unfinished">準備中…</translation>
+        <translation>準備中…</translation>
     </message>
     <message>
         <source>Compiling...</source>
-        <translation type="unfinished">編譯中…</translation>
+        <translation>編譯中…</translation>
     </message>
     <message>
         <source>Main grader (grader.*) cannot be found</source>