137 lines
5.4 KiB
Python
137 lines
5.4 KiB
Python
# Copyright 2012, Tim Bielawa <tbielawa@redhat.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import datetime
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import sys
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import time
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from termios import tcflush, TCIFLUSH
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from ansible.errors import *
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from ansible.plugins.action import ActionBase
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class ActionModule(ActionBase):
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''' pauses execution for a length or time, or until input is received '''
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PAUSE_TYPES = ['seconds', 'minutes', 'prompt', '']
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BYPASS_HOST_LOOP = True
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def run(self, tmp=None, task_vars=dict()):
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''' run the pause action module '''
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duration_unit = 'minutes'
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prompt = None
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seconds = None
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result = dict(
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changed = False,
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rc = 0,
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stderr = '',
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stdout = '',
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start = None,
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stop = None,
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delta = None,
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)
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# FIXME: not sure if we can get this info directly like this anymore?
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#hosts = ', '.join(self.runner.host_set)
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# Is 'args' empty, then this is the default prompted pause
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if self._task.args is None or len(self._task.args.keys()) == 0:
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pause_type = 'prompt'
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#prompt = "[%s]\nPress enter to continue:\n" % hosts
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prompt = "[%s]\nPress enter to continue:\n" % self._task.get_name().strip()
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# Are 'minutes' or 'seconds' keys that exist in 'args'?
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elif 'minutes' in self._task.args or 'seconds' in self._task.args:
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try:
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if 'minutes' in self._task.args:
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pause_type = 'minutes'
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# The time() command operates in seconds so we need to
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# recalculate for minutes=X values.
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seconds = int(self._task.args['minutes']) * 60
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else:
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pause_type = 'seconds'
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seconds = int(self._task.args['seconds'])
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duration_unit = 'seconds'
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except ValueError as e:
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return dict(failed=True, msg="non-integer value given for prompt duration:\n%s" % str(e))
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# Is 'prompt' a key in 'args'?
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elif 'prompt' in self._task.args:
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pause_type = 'prompt'
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#prompt = "[%s]\n%s:\n" % (hosts, self._task.args['prompt'])
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prompt = "[%s]\n%s:\n" % (self._task.get_name().strip(), self._task.args['prompt'])
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# I have no idea what you're trying to do. But it's so wrong.
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else:
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return dict(failed=True, msg="invalid pause type given. must be one of: %s" % ", ".join(self.PAUSE_TYPES))
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#vv("created 'pause' ActionModule: pause_type=%s, duration_unit=%s, calculated_seconds=%s, prompt=%s" % \
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# (self.pause_type, self.duration_unit, self.seconds, self.prompt))
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########################################################################
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# Begin the hard work!
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start = time.time()
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result['start'] = str(datetime.datetime.now())
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# FIXME: this is all very broken right now, as prompting from the worker side
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# is not really going to be supported, and actions marked as BYPASS_HOST_LOOP
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# probably should not be run through the executor engine at all. Also, ctrl+c
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# is now captured on the parent thread, so it can't be caught here via the
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# KeyboardInterrupt exception.
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try:
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if not pause_type == 'prompt':
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print("(^C-c = continue early, ^C-a = abort)")
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#print("[%s]\nPausing for %s seconds" % (hosts, seconds))
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print("[%s]\nPausing for %s seconds" % (self._task.get_name().strip(), seconds))
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time.sleep(seconds)
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else:
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# Clear out any unflushed buffered input which would
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# otherwise be consumed by raw_input() prematurely.
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#tcflush(sys.stdin, TCIFLUSH)
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result['user_input'] = raw_input(prompt.encode(sys.stdout.encoding))
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except KeyboardInterrupt:
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while True:
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print('\nAction? (a)bort/(c)ontinue: ')
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c = getch()
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if c == 'c':
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# continue playbook evaluation
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break
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elif c == 'a':
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# abort further playbook evaluation
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raise ae('user requested abort!')
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finally:
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duration = time.time() - start
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result['stop'] = str(datetime.datetime.now())
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result['delta'] = int(duration)
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if duration_unit == 'minutes':
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duration = round(duration / 60.0, 2)
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else:
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duration = round(duration, 2)
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result['stdout'] = "Paused for %s %s" % (duration, duration_unit)
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return result
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