convert ligolw_segments_from_cats_dqsegdb to an entry_point

bin/ligolw_segments_from_cats_dqsegdb → dqsegdb/tools/ligolw_segments_from_cats.py

-#!/usr/bin/env python3
 # Copyright (C) 2009 Larne Pekowsky
 # Copyright (C) 2014-2020 Syracuse University, European Gravitational Observatory, and Christopher Newport University.  Written by Ryan Fisher and Gary Hemming. See the NOTICE file distributed with this work for additional information regarding copyright ownership.
 #
@@ -93,7 +92,7 @@ __verbose_msg__ = "version: " + get_versions()['version'] + "\nfull-revisionid:
 #
 
 
-def parse_command_line():
+def parse_command_line(args=None):
     """
     Parse the command line, return an options object
     """
@@ -123,7 +122,7 @@ def parse_command_line():
     parser.add_option("-e", "--gps-end-time",   metavar = "gps_end_time", help = "End of GPS time range.")
     parser.add_option("-g", "--debug", metavar = "debug", help = "Print debug information.")
 
-    options, others = parser.parse_args()
+    options, others = parser.parse_args(args=args)
 
     if not options.veto_file:
         raise ValueError("missing required argument --veto-file")
@@ -262,12 +261,12 @@ class ContentHandler(ligolw.LIGOLWContentHandler):
 # =============================================================================
 #
 
-if __name__ == '__main__':
+def main(args=None):
     # Settings
 
     dbtables.get_column_info = kludge_get_column_info
 
-    options, db_location, file_location, loaded_file, debug = parse_command_line()
+    options, db_location, file_location, loaded_file, debug = parse_command_line(args=args)
 
     if options.non_integer:
         allow_non_int=True
@@ -456,3 +455,7 @@ if __name__ == '__main__':
     if debug:
         print("If you see this message, your call to ligolw_segments_from_cats was successful.")
         print("You may want to follow up on any warnings printed before this point; they will indicate any flags that didn't exist in the database but were in the veto definer file.")
+
+
+if __name__ == "__main__":
+    sys.exit(main())

setup.py

@@ -40,6 +40,7 @@ setup(name=PACKAGENAME,
           "console_scripts": [
               "ligolw_dq_query_dqsegdb = dqsegdb.tools.ligolw_dq_query:main",
               "ligolw_segment_query_dqsegdb = dqsegdb.tools.ligolw_segment_query:main",
+              "ligolw_segments_from_cats_dqsegdb = dqsegdb.tools.ligolw_segments_from_cats:main",
           ],
       },
       setup_requires=['setuptools'],