[scripts][cylc] Add support for unported shell scripts

cylc/flow/scripts/cylc.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python
-
 # Copyright (C) 2008-2017 NIWA
 #
 # This program is free software: you can redistribute it and/or modify
@@ -14,14 +13,19 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
 import os
+
 import click
 import pkg_resources
 
-command_list = (
+# These will be ported to python as click commands
+bash_commands = ["cylc-graph-diff", "cylc-jobscript", "cylc-scp-transfer"]
+
+# First step of the click port, the list won't be necessary after that
+command_list = bash_commands + list(
     pkg_resources.get_entry_map("cylc-flow").get("console_scripts").keys()
 )
+
 category_list = [
     "control",
     "information",