3cff54d69b
* dont rely on vars, task already gives us info * ensure we always display delegation in host label * also added parens with ansible_host to show target host vs resolved host * delegating to self is not delegating * delegated vars restoration for backwards compat * tests need mock task with delegate_to
453 lines
17 KiB
Python
453 lines
17 KiB
Python
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.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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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import difflib
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import json
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import sys
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from copy import deepcopy
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from ansible import constants as C
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from ansible.module_utils.common._collections_compat import MutableMapping
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from ansible.module_utils.six import PY3
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from ansible.module_utils._text import to_text
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from ansible.parsing.ajson import AnsibleJSONEncoder
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from ansible.plugins import AnsiblePlugin, get_plugin_class
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from ansible.utils.color import stringc
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from ansible.utils.display import Display
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from ansible.vars.clean import strip_internal_keys, module_response_deepcopy
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if PY3:
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# OrderedDict is needed for a backwards compat shim on Python3.x only
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# https://github.com/ansible/ansible/pull/49512
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from collections import OrderedDict
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else:
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OrderedDict = None
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global_display = Display()
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__all__ = ["CallbackBase"]
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_DEBUG_ALLOWED_KEYS = frozenset(('msg', 'exception', 'warnings', 'deprecations'))
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class CallbackBase(AnsiblePlugin):
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'''
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This is a base ansible callback class that does nothing. New callbacks should
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use this class as a base and override any callback methods they wish to execute
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custom actions.
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'''
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def __init__(self, display=None, options=None):
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if display:
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self._display = display
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else:
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self._display = global_display
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if self._display.verbosity >= 4:
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name = getattr(self, 'CALLBACK_NAME', 'unnamed')
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ctype = getattr(self, 'CALLBACK_TYPE', 'old')
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version = getattr(self, 'CALLBACK_VERSION', '1.0')
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self._display.vvvv('Loading callback plugin %s of type %s, v%s from %s' % (name, ctype, version, sys.modules[self.__module__].__file__))
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self.disabled = False
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self.wants_implicit_tasks = False
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self._plugin_options = {}
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if options is not None:
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self.set_options(options)
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self._hide_in_debug = ('changed', 'failed', 'skipped', 'invocation', 'skip_reason')
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''' helper for callbacks, so they don't all have to include deepcopy '''
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_copy_result = deepcopy
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def set_option(self, k, v):
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self._plugin_options[k] = v
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def get_option(self, k):
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return self._plugin_options[k]
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def set_options(self, task_keys=None, var_options=None, direct=None):
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''' This is different than the normal plugin method as callbacks get called early and really don't accept keywords.
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Also _options was already taken for CLI args and callbacks use _plugin_options instead.
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'''
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# load from config
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self._plugin_options = C.config.get_plugin_options(get_plugin_class(self), self._load_name, keys=task_keys, variables=var_options, direct=direct)
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@staticmethod
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def host_label(result):
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"""Return label for the hostname (& delegated hostname) of a task
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result.
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"""
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label = "%s" % result._host.get_name()
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if result._task.delegate_to and result._task.delegate_to != result._host.get_name():
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# show delegated host
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label += " -> %s" % result._task.delegate_to
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# in case we have 'extra resolution'
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ahost = result._result.get('_ansible_delegated_vars', {}).get('ansible_host', result._task.delegate_to)
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if result._task.delegate_to != ahost:
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label += "(%s)" % ahost
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return label
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def _run_is_verbose(self, result, verbosity=0):
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return ((self._display.verbosity > verbosity or result._result.get('_ansible_verbose_always', False) is True)
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and result._result.get('_ansible_verbose_override', False) is False)
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def _dump_results(self, result, indent=None, sort_keys=True, keep_invocation=False):
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if not indent and (result.get('_ansible_verbose_always') or self._display.verbosity > 2):
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indent = 4
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# All result keys stating with _ansible_ are internal, so remove them from the result before we output anything.
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abridged_result = strip_internal_keys(module_response_deepcopy(result))
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# remove invocation unless specifically wanting it
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if not keep_invocation and self._display.verbosity < 3 and 'invocation' in result:
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del abridged_result['invocation']
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# remove diff information from screen output
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if self._display.verbosity < 3 and 'diff' in result:
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del abridged_result['diff']
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# remove exception from screen output
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if 'exception' in abridged_result:
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del abridged_result['exception']
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try:
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jsonified_results = json.dumps(abridged_result, cls=AnsibleJSONEncoder, indent=indent, ensure_ascii=False, sort_keys=sort_keys)
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except TypeError:
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# Python3 bug: throws an exception when keys are non-homogenous types:
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# https://bugs.python.org/issue25457
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# sort into an OrderedDict and then json.dumps() that instead
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if not OrderedDict:
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raise
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jsonified_results = json.dumps(OrderedDict(sorted(abridged_result.items(), key=to_text)),
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cls=AnsibleJSONEncoder, indent=indent,
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ensure_ascii=False, sort_keys=False)
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return jsonified_results
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def _handle_warnings(self, res):
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''' display warnings, if enabled and any exist in the result '''
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if C.ACTION_WARNINGS:
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if 'warnings' in res and res['warnings']:
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for warning in res['warnings']:
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self._display.warning(warning)
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del res['warnings']
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if 'deprecations' in res and res['deprecations']:
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for warning in res['deprecations']:
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self._display.deprecated(**warning)
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del res['deprecations']
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def _handle_exception(self, result, use_stderr=False):
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if 'exception' in result:
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msg = "An exception occurred during task execution. "
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if self._display.verbosity < 3:
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# extract just the actual error message from the exception text
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error = result['exception'].strip().split('\n')[-1]
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msg += "To see the full traceback, use -vvv. The error was: %s" % error
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else:
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msg = "The full traceback is:\n" + result['exception']
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del result['exception']
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self._display.display(msg, color=C.COLOR_ERROR, stderr=use_stderr)
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def _serialize_diff(self, diff):
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return json.dumps(diff, sort_keys=True, indent=4, separators=(u',', u': ')) + u'\n'
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def _get_diff(self, difflist):
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if not isinstance(difflist, list):
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difflist = [difflist]
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ret = []
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for diff in difflist:
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if 'dst_binary' in diff:
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ret.append(u"diff skipped: destination file appears to be binary\n")
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if 'src_binary' in diff:
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ret.append(u"diff skipped: source file appears to be binary\n")
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if 'dst_larger' in diff:
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ret.append(u"diff skipped: destination file size is greater than %d\n" % diff['dst_larger'])
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if 'src_larger' in diff:
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ret.append(u"diff skipped: source file size is greater than %d\n" % diff['src_larger'])
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if 'before' in diff and 'after' in diff:
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# format complex structures into 'files'
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for x in ['before', 'after']:
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if isinstance(diff[x], MutableMapping):
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diff[x] = self._serialize_diff(diff[x])
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elif diff[x] is None:
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diff[x] = ''
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if 'before_header' in diff:
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before_header = u"before: %s" % diff['before_header']
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else:
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before_header = u'before'
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if 'after_header' in diff:
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after_header = u"after: %s" % diff['after_header']
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else:
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after_header = u'after'
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before_lines = diff['before'].splitlines(True)
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after_lines = diff['after'].splitlines(True)
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if before_lines and not before_lines[-1].endswith(u'\n'):
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before_lines[-1] += u'\n\\ No newline at end of file\n'
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if after_lines and not after_lines[-1].endswith('\n'):
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after_lines[-1] += u'\n\\ No newline at end of file\n'
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differ = difflib.unified_diff(before_lines,
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after_lines,
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fromfile=before_header,
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tofile=after_header,
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fromfiledate=u'',
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tofiledate=u'',
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n=C.DIFF_CONTEXT)
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difflines = list(differ)
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if len(difflines) >= 3 and sys.version_info[:2] == (2, 6):
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# difflib in Python 2.6 adds trailing spaces after
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# filenames in the -- before/++ after headers.
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difflines[0] = difflines[0].replace(u' \n', u'\n')
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difflines[1] = difflines[1].replace(u' \n', u'\n')
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# it also treats empty files differently
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difflines[2] = difflines[2].replace(u'-1,0', u'-0,0').replace(u'+1,0', u'+0,0')
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has_diff = False
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for line in difflines:
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has_diff = True
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if line.startswith(u'+'):
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line = stringc(line, C.COLOR_DIFF_ADD)
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elif line.startswith(u'-'):
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line = stringc(line, C.COLOR_DIFF_REMOVE)
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elif line.startswith(u'@@'):
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line = stringc(line, C.COLOR_DIFF_LINES)
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ret.append(line)
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if has_diff:
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ret.append('\n')
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if 'prepared' in diff:
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ret.append(diff['prepared'])
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return u''.join(ret)
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def _get_item_label(self, result):
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''' retrieves the value to be displayed as a label for an item entry from a result object'''
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if result.get('_ansible_no_log', False):
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item = "(censored due to no_log)"
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else:
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item = result.get('_ansible_item_label', result.get('item'))
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return item
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def _process_items(self, result):
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# just remove them as now they get handled by individual callbacks
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del result._result['results']
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def _clean_results(self, result, task_name):
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''' removes data from results for display '''
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# mostly controls that debug only outputs what it was meant to
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if task_name in C._ACTION_DEBUG:
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if 'msg' in result:
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# msg should be alone
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for key in list(result.keys()):
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if key not in _DEBUG_ALLOWED_KEYS and not key.startswith('_'):
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result.pop(key)
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else:
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# 'var' value as field, so eliminate others and what is left should be varname
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for hidme in self._hide_in_debug:
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result.pop(hidme, None)
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def _print_task_path(self, task, color=C.COLOR_DEBUG):
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path = task.get_path()
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if path:
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self._display.display(u"task path: %s" % path, color=color)
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def set_play_context(self, play_context):
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pass
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def on_any(self, *args, **kwargs):
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pass
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def runner_on_failed(self, host, res, ignore_errors=False):
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pass
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def runner_on_ok(self, host, res):
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pass
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def runner_on_skipped(self, host, item=None):
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pass
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def runner_on_unreachable(self, host, res):
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pass
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def runner_on_no_hosts(self):
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pass
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def runner_on_async_poll(self, host, res, jid, clock):
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pass
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def runner_on_async_ok(self, host, res, jid):
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pass
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def runner_on_async_failed(self, host, res, jid):
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pass
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def playbook_on_start(self):
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pass
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def playbook_on_notify(self, host, handler):
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pass
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def playbook_on_no_hosts_matched(self):
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pass
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def playbook_on_no_hosts_remaining(self):
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pass
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def playbook_on_task_start(self, name, is_conditional):
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pass
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def playbook_on_vars_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None, unsafe=None):
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pass
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def playbook_on_setup(self):
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pass
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def playbook_on_import_for_host(self, host, imported_file):
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pass
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def playbook_on_not_import_for_host(self, host, missing_file):
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pass
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def playbook_on_play_start(self, name):
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pass
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def playbook_on_stats(self, stats):
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pass
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def on_file_diff(self, host, diff):
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pass
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# V2 METHODS, by default they call v1 counterparts if possible
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def v2_on_any(self, *args, **kwargs):
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self.on_any(args, kwargs)
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def v2_runner_on_failed(self, result, ignore_errors=False):
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host = result._host.get_name()
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self.runner_on_failed(host, result._result, ignore_errors)
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def v2_runner_on_ok(self, result):
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host = result._host.get_name()
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self.runner_on_ok(host, result._result)
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def v2_runner_on_skipped(self, result):
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if C.DISPLAY_SKIPPED_HOSTS:
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host = result._host.get_name()
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self.runner_on_skipped(host, self._get_item_label(getattr(result._result, 'results', {})))
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def v2_runner_on_unreachable(self, result):
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host = result._host.get_name()
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self.runner_on_unreachable(host, result._result)
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# FIXME: not called
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def v2_runner_on_async_poll(self, result):
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host = result._host.get_name()
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jid = result._result.get('ansible_job_id')
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# FIXME, get real clock
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clock = 0
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self.runner_on_async_poll(host, result._result, jid, clock)
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# FIXME: not called
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def v2_runner_on_async_ok(self, result):
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host = result._host.get_name()
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jid = result._result.get('ansible_job_id')
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self.runner_on_async_ok(host, result._result, jid)
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# FIXME: not called
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def v2_runner_on_async_failed(self, result):
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host = result._host.get_name()
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jid = result._result.get('ansible_job_id')
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self.runner_on_async_failed(host, result._result, jid)
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def v2_playbook_on_start(self, playbook):
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self.playbook_on_start()
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def v2_playbook_on_notify(self, handler, host):
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self.playbook_on_notify(host, handler)
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def v2_playbook_on_no_hosts_matched(self):
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self.playbook_on_no_hosts_matched()
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def v2_playbook_on_no_hosts_remaining(self):
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self.playbook_on_no_hosts_remaining()
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def v2_playbook_on_task_start(self, task, is_conditional):
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self.playbook_on_task_start(task.name, is_conditional)
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# FIXME: not called
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def v2_playbook_on_cleanup_task_start(self, task):
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pass # no v1 correspondence
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def v2_playbook_on_handler_task_start(self, task):
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pass # no v1 correspondence
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def v2_playbook_on_vars_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None, unsafe=None):
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self.playbook_on_vars_prompt(varname, private, prompt, encrypt, confirm, salt_size, salt, default, unsafe)
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# FIXME: not called
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def v2_playbook_on_import_for_host(self, result, imported_file):
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host = result._host.get_name()
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self.playbook_on_import_for_host(host, imported_file)
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# FIXME: not called
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def v2_playbook_on_not_import_for_host(self, result, missing_file):
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host = result._host.get_name()
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self.playbook_on_not_import_for_host(host, missing_file)
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def v2_playbook_on_play_start(self, play):
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self.playbook_on_play_start(play.name)
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def v2_playbook_on_stats(self, stats):
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self.playbook_on_stats(stats)
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def v2_on_file_diff(self, result):
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if 'diff' in result._result:
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host = result._host.get_name()
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self.on_file_diff(host, result._result['diff'])
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def v2_playbook_on_include(self, included_file):
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pass # no v1 correspondence
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def v2_runner_item_on_ok(self, result):
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pass
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def v2_runner_item_on_failed(self, result):
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pass
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def v2_runner_item_on_skipped(self, result):
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pass
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def v2_runner_retry(self, result):
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pass
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def v2_runner_on_start(self, host, task):
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"""Event used when host begins execution of a task
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.. versionadded:: 2.8
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"""
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pass
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