dbtool gives help URL on bad arguments

diff --git a/src/main-dbtool.sml b/src/main-dbtool.sml
index 7bf0fec..d9765a9 100644 (file)
--- a/src/main-dbtool.sml
+++ b/src/main-dbtool.sml
@@ -18,9 +18,12 @@
 
 (* Driver for dbtool *)
 
+fun badArgs () =
+    print "Invalid command-line arguments.  See documentation at:\n\thttp://wiki.hcoop.net/MemberManual/Databases\n"
+
 val _ =
     case CommandLine.arguments () of
-       [] => print "Invalid command-line arguments\n"
+       [] => badArgs ()
       | dbtype :: rest =>
        case Dbms.lookup dbtype of
            NONE => print ("Unknown database type " ^ dbtype ^ ".\n")
@@ -68,4 +71,4 @@ val _ =
                    Main.requestDbGrant {dbtype = dbtype, dbname = dbname}
                else
                    print ("Invalid database name " ^ dbname ^ ".\n")
-             | _ => print "Invalid command-line arguments\n"
+             | _ => badArgs ()