added output option to index

etherdump/commands/index.py

@@ -69,6 +69,7 @@ def main (args):
     p.add_argument("--content", default=False, action="store_true", help="rss: include (full) content tag, default: False")
     p.add_argument("--link", default="diffhtml,html,text", help="link variable will be to this version, can be comma-delim list, use first avail, default: diffhtml,html,text")
     p.add_argument("--linkbase", default=None, help="base url to use for links, default: try to use the feedurl")
+    p.add_argument("--output", default=None, help="output, default: stdout")
 
     pg = p.add_argument_group('template variables')
     pg.add_argument("--feedurl", default="feed.xml", help="rss: to use as feeds own (self) link, default: feed.xml")
@@ -169,4 +170,8 @@ def main (args):
             except KeyError as e:
                 pass
 
-    print (template.render(vars(args)).encode("utf-8"))
+    if args.output:
+        with open(args.output, "w") as f:
+            print (template.render(vars(args)).encode("utf-8"), file=f)
+    else:
+            print (template.render(vars(args)).encode("utf-8"))