radicale: [NEW] Python-based CalDAV/CardDAV Server

Inspired by OpenWrt Ticket System Ticket 9119
Python3 package currently marked as @BROKEN because no time for testing.

Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>

net/radicale/files/logging.template

@@ -0,0 +1,47 @@
+# -*- mode: conf -*-
+# vim:ft=cfg
+
+### AUTO-GENERATED CONFIGURATION
+###      USED BY RADICALE
+###         DO NOT EDIT
+### SEE /etc/config/radicale INSTEAD
+
+[loggers]
+keys = root
+
+[handlers]
+keys = console,file,syslog
+
+[formatters]
+keys = simple,full,syslog
+
+[logger_root]
+level = DEBUG
+handlers = console,file,syslog
+
+[handler_console]
+class = StreamHandler
+args = (sys.stdout,)
+formatter = simple
+# level = WARNING					# set via /etc/config/radicale
+
+[handler_file]
+class = handlers.RotatingFileHandler
+formatter = full
+# level = INFO						# set via /etc/config/radicale
+# args = ('[filename]','a',[maxbytes],[backupcount])	# set via /etc/config/radicale
+
+[handler_syslog]
+class = handlers.SysLogHandler
+args  = ('/dev/log', handlers.SysLogHandler.LOG_DAEMON)
+formatter = syslog
+# level = WARNING					# set via /etc/config/radicale
+
+[formatter_simple]
+format = %(message)s
+
+[formatter_full]
+format = %(asctime)s - %(levelname)s: %(message)s
+
+[formatter_syslog]
+format = radicale [%(process)d]: %(message)s