Revert "centralized TERM signal handling"

This reverts commit 5a88478ccc.
is WIP, not ready for use yet

lib/ansible/cli/adhoc.py

@@ -21,6 +21,7 @@ __metaclass__ = type
 ########################################################
 
 import os
+import signal
 
 from ansible import constants as C
 from ansible.cli import CLI
@@ -88,6 +89,10 @@ class AdHocCLI(CLI):
             tasks = [ dict(action=dict(module=self.options.module_name, args=parse_kv(self.options.module_args)), async=async, poll=poll) ]
         )
 
+    def _terminate(self, signum=None, framenum=None):
+        if signum is not None:
+            display.debug("Termination signal detected, shutting down gracefully")
+            raise SystemExit
 
     def run(self):
         ''' use Runner lib to do SSH things '''
@@ -171,6 +176,9 @@ class AdHocCLI(CLI):
         # now create a task queue manager to execute the play
         self._tqm = None
         try:
+            # Manage user interruptions
+            signal.signal(signal.SIGTERM, self._terminate)
+
             self._tqm = TaskQueueManager(
                     inventory=inventory,
                     variable_manager=variable_manager,