fix: warnings when compiling with Qt 6.10 (#6422)

src/singletons/ImageUploader.cpp

@@ -140,7 +140,12 @@ void ImageUploader::logToFile(const QString &originalFilePath,
     // local path to an image (can be empty)
     // timestamp
     QSaveFile logSaveFile(logFileName);
-    logSaveFile.open(QIODevice::WriteOnly | QIODevice::Text);
+    if (!logSaveFile.open(QIODevice::WriteOnly | QIODevice::Text))
+    {
+        qCDebug(chatterinoImageuploader)
+            << "Failed to open log file" << logSaveFile.errorString();
+        return;
+    }
     QJsonArray entries = QJsonDocument::fromJson(logs).array();
     entries.push_back(newLogEntry);
     logSaveFile.write(QJsonDocument(entries).toJson());

src/singletons/Updates.cpp

@@ -178,7 +178,13 @@ void Updates::installUpdates()
                     combinePath(this->paths.miscDirectory, "update.zip");
 
                 QFile file(filename);
-                file.open(QIODevice::Truncate | QIODevice::WriteOnly);
+                if (!file.open(QIODevice::Truncate | QIODevice::WriteOnly))
+                {
+                    qCWarning(chatterinoUpdate)
+                        << "Failed to save update.zip" << file.errorString();
+                    this->setStatus_(WriteFileFailed);
+                    return;
+                }
 
                 if (file.write(object) == -1)
                 {
@@ -238,7 +244,9 @@ void Updates::installUpdates()
                     combinePath(this->paths.miscDirectory, "Update.exe");
 
                 QFile file(filePath);
-                file.open(QIODevice::Truncate | QIODevice::WriteOnly);
+                // write() will fail if we couldn't open
+                std::ignore =
+                    file.open(QIODevice::Truncate | QIODevice::WriteOnly);
 
                 if (file.write(object) == -1)
                 {

src/singletons/helper/LoggingChannel.cpp

@@ -128,7 +128,12 @@ void LoggingChannel::openLogFile()
     qCDebug(chatterinoHelper) << "Logging to" << fileName;
     this->fileHandle.setFileName(fileName);
 
-    this->fileHandle.open(QIODevice::Append);
+    if (!this->fileHandle.open(QIODevice::Append))
+    {
+        qCDebug(chatterinoHelper)
+            << "Failed to open file" << this->fileHandle.errorString();
+        return;
+    }
 
     appendLine(this->fileHandle, generateOpeningString(now));
 }
@@ -159,7 +164,13 @@ void LoggingChannel::openStreamLogFile(const QString &streamID)
     qCDebug(chatterinoHelper) << "Logging stream to" << fileName;
     this->currentStreamFileHandle.setFileName(fileName);
 
-    this->currentStreamFileHandle.open(QIODevice::Append);
+    if (!this->currentStreamFileHandle.open(QIODevice::Append))
+    {
+        qCDebug(chatterinoHelper)
+            << "Failed to open file"
+            << this->currentStreamFileHandle.errorString();
+        return;
+    }
     appendLine(this->currentStreamFileHandle, generateOpeningString(now));
 }