Handle return after getArgs (#52)

Author: eatonphil

main.go

@@ -337,6 +337,11 @@ func _main() error {
 		return err
 	}
 
+	// Some commands exit naturally here. Like -h and -v
+	if args == nil {
+		return nil
+	}
+
 	lastNonFlagArg := ""
 	files := args.nonFlagArgs
 

scripts/test.py

@@ -171,6 +171,11 @@ def test(name, to_run, want, fail=False, sort=False, winSkip=False, within_secon
 want = '[{"COUNT(*)":25}]'
 test("Supports Avro files", to_run, want, sort=True)
 
+# Version test
+to_run = """./dsq -v"""
+want_stderr = "dsq latest\n"
+test("Shows version and quits", to_run, want="", want_stderr=want_stderr)
+
 # Pretty column order
 to_run = """./dsq --pretty testdata/path/path.json 'SELECT name, id FROM {"data.data"}'"""
 want = """+----+-------+