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# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division)
__metaclass__ = type
import json
import difflib
import warnings
from copy import deepcopy
from six import string_types
from ansible import constants as C
from ansible.utils.unicode import to_unicode
__all__ = ["CallbackBase"]
class CallbackBase:
'''
This is a base ansible callback class that does nothing. New callbacks should
use this class as a base and override any callback methods they wish to execute
custom actions.
'''
# FIXME: the list of functions here needs to be updated once we have
# finalized the list of callback methods used in the default callback
def __init__(self, display):
self._display = display
if self._display.verbosity >= 4:
name = getattr(self, 'CALLBACK_NAME', 'unnamed')
ctype = getattr(self, 'CALLBACK_TYPE', 'old')
version = getattr(self, 'CALLBACK_VERSION', '1.0')
self._display.vvvv('Loaded callback %s of type %s, v%s' % (name, ctype, version))
def _dump_results(self, result, indent=None, sort_keys=True):
if result.get('_ansible_no_log', False):
return json.dumps(dict(censored="the output has been hidden due to the fact that 'no_log: true' was specified for this result"))
if not indent and '_ansible_verbose_always' in result and result['_ansible_verbose_always']:
indent = 4
# All result keys stating with _ansible_ are internal, so remove them from the result before we output anything.
for k in result.keys():
if isinstance(k, string_types) and k.startswith('_ansible_'):
del result[k]
return json.dumps(result, indent=indent, ensure_ascii=False, sort_keys=sort_keys)
def _handle_warnings(self, res):
''' display warnings, if enabled and any exist in the result '''
if C.COMMAND_WARNINGS and 'warnings' in res and res['warnings']:
for warning in res['warnings']:
self._display.warning(warning)
def _get_diff(self, difflist):
if not isinstance(difflist, list):
difflist = [difflist]
ret = []
for diff in difflist:
try:
with warnings.catch_warnings():
warnings.simplefilter('ignore')
ret = []
if 'dst_binary' in diff:
ret.append("diff skipped: destination file appears to be binary\n")
if 'src_binary' in diff:
ret.append("diff skipped: source file appears to be binary\n")
if 'dst_larger' in diff:
ret.append("diff skipped: destination file size is greater than %d\n" % diff['dst_larger'])
if 'src_larger' in diff:
ret.append("diff skipped: source file size is greater than %d\n" % diff['src_larger'])
if 'before' in diff and 'after' in diff:
if 'before_header' in diff:
before_header = "before: %s" % diff['before_header']
else:
before_header = 'before'
if 'after_header' in diff:
after_header = "after: %s" % diff['after_header']
else:
after_header = 'after'
differ = difflib.unified_diff(to_unicode(diff['before']).splitlines(True), to_unicode(diff['after']).splitlines(True), before_header, after_header, '', '', 10)
ret.extend(list(differ))
ret.append('\n')
return u"".join(ret)
except UnicodeDecodeError:
ret.append(">> the files are different, but the diff library cannot compare unicode strings\n\n")
def _get_item(self, result):
if '_ansible_no_log' in result and result['_ansible_no_log']:
item = "(censored due to no_log)"
else:
item = result.get('item', None)
return item
def _process_items(self, result):
for res in result._result['results']:
newres = deepcopy(result)
res['item'] = self._get_item(res)
newres._result = res
if 'failed' in res and res['failed']:
self.v2_playbook_item_on_failed(newres)
elif 'skipped' in res and res['skipped']:
self.v2_playbook_item_on_skipped(newres)
else:
self.v2_playbook_item_on_ok(newres)
def set_play_context(self, play_context):
pass
def on_any(self, *args, **kwargs):
pass
def runner_on_failed(self, host, res, ignore_errors=False):
pass
def runner_on_ok(self, host, res):
pass
def runner_on_skipped(self, host, item=None):
pass
def runner_on_unreachable(self, host, res):
pass
def runner_on_no_hosts(self):
pass
def runner_on_async_poll(self, host, res, jid, clock):
pass
def runner_on_async_ok(self, host, res, jid):
pass
def runner_on_async_failed(self, host, res, jid):
pass
def playbook_on_start(self):
pass
def playbook_on_notify(self, host, handler):
pass
def playbook_on_no_hosts_matched(self):
pass
def playbook_on_no_hosts_remaining(self):
pass
def playbook_on_task_start(self, name, is_conditional):
pass
def playbook_on_vars_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None):
pass
def playbook_on_setup(self):
pass
def playbook_on_import_for_host(self, host, imported_file):
pass
def playbook_on_not_import_for_host(self, host, missing_file):
pass
def playbook_on_play_start(self, name):
pass
def playbook_on_stats(self, stats):
pass
def on_file_diff(self, host, diff):
pass
####### V2 METHODS, by default they call v1 counterparts if possible ######
def v2_on_any(self, *args, **kwargs):
self.on_any(args, kwargs)
def v2_runner_on_failed(self, result, ignore_errors=False):
host = result._host.get_name()
self.runner_on_failed(host, result._result, ignore_errors)
def v2_runner_on_ok(self, result):
host = result._host.get_name()
self.runner_on_ok(host, result._result)
def v2_runner_on_skipped(self, result):
if C.DISPLAY_SKIPPED_HOSTS:
host = result._host.get_name()
self.runner_on_skipped(host, self._get_item(getattr(result._result,'results',{})))
def v2_runner_on_unreachable(self, result):
host = result._host.get_name()
self.runner_on_unreachable(host, result._result)
def v2_runner_on_no_hosts(self, task):
self.runner_on_no_hosts()
def v2_runner_on_async_poll(self, result):
host = result._host.get_name()
jid = result._result.get('ansible_job_id')
#FIXME, get real clock
clock = 0
self.runner_on_async_poll(host, result._result, jid, clock)
def v2_runner_on_async_ok(self, result):
host = result._host.get_name()
jid = result._result.get('ansible_job_id')
self.runner_on_async_ok(host, result._result, jid)
def v2_runner_on_async_failed(self, result):
host = result._host.get_name()
jid = result._result.get('ansible_job_id')
self.runner_on_async_failed(host, result._result, jid)
def v2_runner_on_file_diff(self, result, diff):
pass #no v1 correspondance
def v2_playbook_on_start(self):
self.playbook_on_start()
def v2_playbook_on_notify(self, result, handler):
host = result._host.get_name()
self.playbook_on_notify(host, handler)
def v2_playbook_on_no_hosts_matched(self):
self.playbook_on_no_hosts_matched()
def v2_playbook_on_no_hosts_remaining(self):
self.playbook_on_no_hosts_remaining()
def v2_playbook_on_task_start(self, task, is_conditional):
self.playbook_on_task_start(task, is_conditional)
def v2_playbook_on_cleanup_task_start(self, task):
pass #no v1 correspondance
def v2_playbook_on_handler_task_start(self, task):
pass #no v1 correspondance
def v2_playbook_on_vars_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None):
self.playbook_on_vars_prompt(varname, private, prompt, encrypt, confirm, salt_size, salt, default)
def v2_playbook_on_setup(self):
self.playbook_on_setup()
def v2_playbook_on_import_for_host(self, result, imported_file):
host = result._host.get_name()
self.playbook_on_import_for_host(host, imported_file)
def v2_playbook_on_not_import_for_host(self, result, missing_file):
host = result._host.get_name()
self.playbook_on_not_import_for_host(host, missing_file)
def v2_playbook_on_play_start(self, play):
self.playbook_on_play_start(play.name)
def v2_playbook_on_stats(self, stats):
self.playbook_on_stats(stats)
def v2_on_file_diff(self, result):
host = result._host.get_name()
if 'diff' in result._result:
self.on_file_diff(host, result._result['diff'])
def v2_playbook_on_item_ok(self, result):
pass # no v1
def v2_playbook_on_item_failed(self, result):
pass # no v1
def v2_playbook_on_item_skipped(self, result):
pass # no v1
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