Add help command and usage info to databaseReset.py

databaseReset.py

@@ -161,7 +161,23 @@ def writeCaves():
         cave.writeDataFile()
     for entrance in Entrance.objects.all():
         entrance.writeDataFile()
-    
+
+def usage():
+    print """Usage is 'python databaseReset.py <command>'
+             where command is:
+             reset - this is normal usage, clear database and reread everything
+             desc
+             logbooks - read in the logbooks
+             autologbooks
+             dumplogbooks
+             QMs      - read in the QM files
+             resetend
+             scans    - reaq in the scanned surveynotes
+             survex   - read in the survex files
+             survexpos
+             tunnel   - read in the Tunnel files
+             writeCaves
+             """ 
 
 if __name__ == "__main__":
     import core.models
@@ -207,8 +223,11 @@ if __name__ == "__main__":
         dumplogbooks()
     elif "writeCaves" in sys.argv:
         writeCaves()
+    elif "help" in sys.argv:
+        usage()
     else:
-        print "Do 'python databaseReset.py reset'"
+        print "%s not recognised" % sys.argv
+        usage()