Pipe critical message log errors to stderr in qgis_process

Notably, this now outputs the full Python error trace when an error occurs while loading a plugin
qgis · Apr 16, 2020 · 359df3c · 359df3c
1 parent 061e858
commit 359df3c
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/src/process/qgsprocess.cpp b/src/process/qgsprocess.cpp
@@ -32,6 +32,7 @@
 #endif
 
 #include <iostream>
+#include <QObject>
 
 ConsoleFeedback::ConsoleFeedback()
 {
@@ -151,6 +152,16 @@ QgsProcessingExec::QgsProcessingExec()
 
 int QgsProcessingExec::run( const QStringList &args )
 {
+  QObject::connect( QgsApplication::messageLog(), static_cast < void ( QgsMessageLog::* )( const QString &message, const QString &tag, Qgis::MessageLevel level ) >( &QgsMessageLog::messageReceived ), QgsApplication::instance(),
+                    [ = ]( const QString & message, const QString &, Qgis::MessageLevel level )
+  {
+    if ( level == Qgis::Critical )
+    {
+      if ( !message.contains( QLatin1String( "DeprecationWarning:" ) ) )
+        std::cerr << message.toLocal8Bit().constData();
+    }
+  } );
+
   if ( args.size() == 1 )
   {
     showUsage( args.at( 0 ) );