Handling empty files

Author: caetera

RawFileParser.cs

@@ -118,6 +118,12 @@ private static void ProcessFile(ParseInput parseInput)
                 var firstScanNumber = rawFile.RunHeaderEx.FirstSpectrum;
                 var lastScanNumber = rawFile.RunHeaderEx.LastSpectrum;
 
+                // Check for empty file
+                if (lastScanNumber == 0)
+                {
+                    throw new RawFileParserException("Empty RAW file, no output is produced");
+                }
+
                 if (parseInput.MetadataFormat != MetadataFormat.NONE)
                 {
                     MetadataWriter metadataWriter = new MetadataWriter(parseInput);