sam ls/mv: fix some errors

applications/sam/common/samUtils.py

@@ -32,6 +32,9 @@ def __init__(self):
         # Add a console handler
         self.addConsoleHandler()
 
+        # Set default log level of all sam tools to warning
+        self.setLogLevel(2)
+
     def fillParser(self, parser):
         """
         To fill the given parser.

applications/sam/sam_ls.py

@@ -236,7 +236,10 @@ def run(self, parser):
                     sequence = sequenceParser.Sequence()
                     isSequence = sequenceParser.browseSequence(sequence, input)
                     if isSequence:
-                        items.append(sequenceParser.Item(sequence, os.getcwd()))
+                        item = sequenceParser.Item(sequence, os.getcwd())
+                        # check if the sequence contains at least one element
+                        if len(item.explode()):
+                            items.append(item)
                     # else error
                     else:
                         self.logger.warning(e)
@@ -254,7 +257,10 @@ def run(self, parser):
                     # new browse
                     items += sequenceParser.browse(newBrowsePath, detectionMethod, newFilter)
 
-            self.printItems(items, args, detectionMethod, filters)
+            if not len(items):
+                self.logger.warning('No items found for input "' + input + '".')
+            else:
+                self.printItems(items, args, detectionMethod, filters)
 
 
 if __name__ == '__main__':

applications/sam/sam_mv.py

@@ -155,7 +155,7 @@ def _getSequenceItemFromPath(self, inputPath, detectNegative):
 
         inputItem = inputItems[0]
         if inputItem.getType() != sequenceParser.eTypeSequence:
-            self.logger.error('Input is not a sequence: ', inputItem.getFilename())
+            self.logger.error('Input is not a sequence: ' + inputItem.getFilename())
             exit(-1)
 
         return inputItem