scheduler, task_pool, task_proxy refactor

Fixes following merge with cylc#2276.

lib/cylc/config.py

@@ -51,7 +51,6 @@
 from parsec.OrderedDict import OrderedDictWithDefaults
 from parsec.util import replicate
 from cylc.suite_logging import OUT, ERR
-from cylc.task_proxy import TaskProxy
 
 
 RE_SUITE_NAME_VAR = re.compile('\${?CYLC_SUITE_(REG_)?NAME}?')
@@ -749,8 +748,6 @@ def __init__(self, suite, fpath, template_vars=None,
                         '(graph the suite to see back-edges).')
 
         self.mem_log("config.py: end init config")
-        TaskProxy.suite_name = self.suite
-        TaskProxy.suite_url = self.cfg['URL']
 
     def _expand_name_list(self, orig_names):
         """Expand any parameters in lists of names."""

lib/cylc/scheduler.py

@@ -316,6 +316,7 @@ def configure(self):
         self.task_events_mgr.mail_interval = self._get_cylc_conf(
             "task event mail interval")
         self.task_events_mgr.mail_footer = self._get_events_conf("mail footer")
+        self.task_events_mgr.suite_url = self.config.cfg['URL']
         if self.options.genref or self.options.reftest:
             self.configure_reftest()
 

lib/cylc/task_events_mgr.py

@@ -111,6 +111,7 @@ class TaskEventsManager(object):
 
     def __init__(self, suite, proc_pool, suite_db_mgr):
         self.suite = suite
+        self.suite_url = None
         self.proc_pool = proc_pool
         self.suite_db_mgr = suite_db_mgr
         self.mail_interval = 0.0
@@ -826,6 +827,8 @@ def _setup_custom_event_handlers(self, itask, event, message):
                 "submit_num": itask.submit_num,
                 "id": quote(itask.identity),
                 "message": quote(message),
+                "task_url": quote(itask.tdef.rtconfig['URL']),
+                "suite_url": quote(self.suite_url),
             }
             if cmd == handler:
                 # Nothing substituted, assume classic interface