Put application and system info at the start of the log file if it is being used

logging/loggerwithfile.cpp

@@ -48,6 +48,13 @@ void LoggerWithFile::log(const QtMsgType type, const QString& message, const QSt
     }
 }
 
+void LoggerWithFile::logToFile(const QtMsgType type, const QString& message, const QString &file, const QString &function, const int line)
+{
+    if (fileLogger && useFileFlogger) {
+        fileLogger->log(type,message,file,function,line);
+    }
+}
+
 void LoggerWithFile::clear(const bool buffer, const bool variables)
 {
     consoleLogger->clear(buffer,variables);

logging/loggerwithfile.h

@@ -74,6 +74,9 @@ public:
     void getFileMinMessageLevelStr(QString& levelStr);
     void getLogFileName(QString& fileName);
 
+    /** This will log to file only */
+    void logToFile(const QtMsgType type, const QString& message, const QString &file="", const QString &function="", const int line=0);
+
 private:
     /** First console logger */
     Logger* consoleLogger;

sdrgui/mainwindow.cpp

@@ -1725,6 +1725,25 @@ void MainWindow::setLoggingOptions()
     }
 
     m_logger->setUseFileLogger(m_settings.getUseLogFile());
+
+    if (m_settings.getUseLogFile())
+    {
+#if QT_VERSION >= 0x050400
+        QString appInfoStr(tr("%1 v%2 Qt %3 %4 %5")
+                .arg(qApp->applicationName())
+                .arg(qApp->applicationVersion())
+                .arg(QT_VERSION_STR)
+                .arg(QSysInfo::currentCpuArchitecture())
+                .arg(QSysInfo::prettyProductName()));
+#else
+        QString appInfoStr(tr("%1 v%2 Qt %3")
+                .arg(qApp->applicationName())
+                .arg(qApp->applicationVersion())
+                .arg(QT_VERSION_STR));
+ #endif
+
+        m_logger->logToFile(QtInfoMsg, appInfoStr);
+    }
 }
 
 void MainWindow::focusHasChanged(QWidget *oldWidget __attribute__((unused)), QWidget *newWidget)

sdrsrv/maincore.cpp

@@ -17,6 +17,7 @@
 ///////////////////////////////////////////////////////////////////////////////////
 
 #include <QDebug>
+#include <QSysInfo>
 #include <unistd.h>
 
 #include "dsp/dspengine.h"
@@ -216,6 +217,25 @@ void MainCore::setLoggingOptions()
     }
 
     m_logger->setUseFileLogger(m_settings.getUseLogFile());
+
+    if (m_settings.getUseLogFile())
+    {
+#if QT_VERSION >= 0x050400
+        QString appInfoStr(tr("%1 v%2 Qt %3 %4 %5")
+                .arg(QCoreApplication::instance()->applicationName())
+                .arg(QCoreApplication::instance()->applicationVersion())
+                .arg(QT_VERSION_STR)
+                .arg(QSysInfo::currentCpuArchitecture())
+                .arg(QSysInfo::prettyProductName()));
+#else
+        QString appInfoStr(tr("%1 v%2 Qt %3")
+                .arg(QCoreApplication::instance()->applicationName())
+                .arg(QCoreApplication::instance()->applicationVersion())
+                .arg(QT_VERSION_STR));
+#endif
+
+        m_logger->logToFile(QtInfoMsg, appInfoStr);
+    }
 }
 
 void MainCore::addSinkDevice()