Added a -v, --version flag to get the version of the DataSync jar bei…

…ng run.

Removed the resource name from schemas on port jobs so they don't fail.

Reviewed-by: franklin

src/main/java/com/socrata/datasync/Main.java

@@ -31,6 +31,8 @@ public static void main(String[] args) throws ParseException {
         } else if(args.length == 1) {
     		if(args[0].equals("-?") || args[0].equals("--help")) {
                 printHelp();
+            } else if (args[0].equals("-v") || args[0].equals("--version")) {
+                System.out.println("DataSync version " + VersionProvider.getThisVersion());
             } else {
                 // Run a job file (.sij) in command-line mode
                 String jobFileToRun = args[0];

src/main/java/com/socrata/datasync/PortUtility.java

@@ -175,9 +175,12 @@ public static JobStatus assertSchemasAreAlike(SodaDdl sourceChecker, SodaDdl sin
      * with a grouping_aggregrate but no group-by).  The editing of the field name is necessary for subsequent
      * data loading, since the data from soda2 expectst aggregated columns to include the grouping_aggregate.
      * Also removes drill-down formatting info, as this is non-sensical without the unaggregated data
+     * Also removing the resourceName - no port job can succeed with one present.
      * @param schema the Dataset from soda-java representing the schema
      */
      public static void adaptSchemaForAggregates(Dataset schema) {
+        // TODO: give users the option to choose a new resource name; in the meanwhile, it can be set after the job completes
+        schema.setResourceName(null);
         List<Column> columns = schema.getColumns();
         for (int i = 0; i < columns.size(); i++) {
             Column col = columns.get(i);

src/main/java/com/socrata/datasync/config/CommandLineOptions.java

@@ -74,6 +74,7 @@ public class CommandLineOptions {
         options.addOption("pdt", DESTINATION_DATASET_TITLE_FLAG, true, "Destination Dataset Title (optional) [PortJob]");
 
         options.addOption("?", "help", false, "Help");
+        options.addOption("v", "version", false, "DataSync version");
     }
 
     public static CommandLine getCommandLine(String[] args) throws ParseException, ParseException {