Add --verbose to control output

dirbuild.py

@@ -2,14 +2,15 @@
 """dirbuild
 
 Usage:
-  dirbuild
-  dirbuild set <command>
-  dirbuild get
-  dirbuild build
-  dirbuild dump
+  dirbuild [-v]
+  dirbuild [-v] set <command>
+  dirbuild [-v] get
+  dirbuild [-v] build
+  dirbuild [-v] dump
 
 Options:
   -h --help     Show this screen.
+  -v --verbose  Show verbose information.
   --version     Show version.
 
 """
@@ -36,7 +37,7 @@ def init_logger():
     formatter = logging.Formatter("%(asctime)s %(name)-12s %(levelname)-8s %(message)s")
     handler.setFormatter(formatter)
     logger.addHandler(handler)
-    logger.setLevel(logging.DEBUG)
+    logger.setLevel(logging.ERROR)
 
 
 def init_db() -> sqlite3.Connection:
@@ -87,6 +88,8 @@ def main():
     """ Main function """
     init_logger()
     arguments = docopt(__doc__, version="dirbuild v0.1.0")
+    if arguments["--verbose"]:
+        logger.setLevel(logging.DEBUG)
     logger.debug("arguments: %s", arguments)
     db = init_db()
     if arguments["set"]: