Add command line parameter -i to specify starting topic number (default is 0)

tools/dcdbcsvimport/dcdbcsvimport.cpp

@@ -73,11 +73,16 @@ int main(int argc, char** argv)
       host = "localhost";
   }
 
-  while ((ret=getopt(argc, argv, "+h:"))!=-1) {
+  int indexOffset = 0;
+  while ((ret=getopt(argc, argv, "+h:i:"))!=-1) {
       switch(ret) {
           case 'h':
               host = optarg;
               break;
+          case 'i':
+              indexOffset = atoi(optarg);
+		std::cout << "i: " << optarg << std::endl;
+              break;
           default:
               usage(argc, argv);
               exit(EXIT_FAILURE);
@@ -104,8 +109,8 @@ int main(int argc, char** argv)
   std::string s;
   std::vector<std::string> vec;
   std::vector<sensor_t> sensors;
-  std::string csvFilename = argv[1];
-  std::string prefix = argv[2];
+  std::string csvFilename = argv[optind];
+  std::string prefix = argv[optind+1];
   uint64_t lineno = 0;
 
   /* Read header line from CSV to obtain sensor names and topics */
@@ -116,7 +121,7 @@ int main(int argc, char** argv)
   std::getline(fs, s);
   lineno++;
   boost::tokenizer<boost::escaped_list_separator<char> > tk(s, boost::escaped_list_separator<char>('\\', ',', '\"'));
-  int topics = 0;
+  int topics = indexOffset;
   for (boost::tokenizer<boost::escaped_list_separator<char> >::iterator i=tk.begin(); i!=tk.end();++i) 
   {
 	  if (i == tk.begin()) {