disable updates on windows nightlies

src/common/Modes.cpp

@@ -0,0 +1,36 @@
+#include "Modes.hpp"
+
+#include "util/CombinePath.hpp"
+
+#include <QCoreApplication>
+
+namespace chatterino {
+
+Modes::Modes()
+{
+    QFile file(combinePath(QCoreApplication::applicationDirPath(), "modes"));
+    file.open(QIODevice::ReadOnly);
+
+    while (!file.atEnd())
+    {
+        auto line = QString(file.readLine());
+
+        // we need to know if it is a nightly build to disable updates on windows
+        if (line == "nightly")
+        {
+            this->isNightly = true;
+        }
+        else if (line == "portable")
+        {
+            this->isPortable = true;
+        }
+    }
+}
+
+const Modes &Modes::getInstance()
+{
+    static Modes instance;
+    return instance;
+}
+
+}  // namespace chatterino