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275
plugins/callback/selective.py
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275
plugins/callback/selective.py
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# (c) Fastly, inc 2016
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# (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = '''
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callback: selective
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callback_type: stdout
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requirements:
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- set as main display callback
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short_description: only print certain tasks
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description:
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- This callback only prints tasks that have been tagged with `print_action` or that have failed.
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This allows operators to focus on the tasks that provide value only.
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- Tasks that are not printed are placed with a '.'.
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- If you increase verbosity all tasks are printed.
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options:
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nocolor:
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default: False
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description: This setting allows suppressing colorizing output
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env:
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- name: ANSIBLE_NOCOLOR
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- name: ANSIBLE_SELECTIVE_DONT_COLORIZE
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ini:
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- section: defaults
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key: nocolor
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type: boolean
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'''
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EXAMPLES = """
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- debug: msg="This will not be printed"
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- debug: msg="But this will"
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tags: [print_action]
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"""
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import difflib
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from ansible import constants as C
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from ansible.plugins.callback import CallbackBase
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from ansible.module_utils._text import to_text
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from ansible.utils.color import codeCodes
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DONT_COLORIZE = False
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COLORS = {
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'normal': '\033[0m',
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'ok': '\033[{0}m'.format(codeCodes[C.COLOR_OK]),
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'bold': '\033[1m',
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'not_so_bold': '\033[1m\033[34m',
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'changed': '\033[{0}m'.format(codeCodes[C.COLOR_CHANGED]),
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'failed': '\033[{0}m'.format(codeCodes[C.COLOR_ERROR]),
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'endc': '\033[0m',
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'skipped': '\033[{0}m'.format(codeCodes[C.COLOR_SKIP]),
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}
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def dict_diff(prv, nxt):
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"""Return a dict of keys that differ with another config object."""
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keys = set(prv.keys() + nxt.keys())
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result = {}
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for k in keys:
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if prv.get(k) != nxt.get(k):
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result[k] = (prv.get(k), nxt.get(k))
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return result
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def colorize(msg, color):
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"""Given a string add necessary codes to format the string."""
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if DONT_COLORIZE:
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return msg
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else:
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return '{0}{1}{2}'.format(COLORS[color], msg, COLORS['endc'])
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class CallbackModule(CallbackBase):
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"""selective.py callback plugin."""
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CALLBACK_VERSION = 2.0
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CALLBACK_TYPE = 'stdout'
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CALLBACK_NAME = 'community.general.selective'
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def __init__(self, display=None):
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"""selective.py callback plugin."""
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super(CallbackModule, self).__init__(display)
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self.last_skipped = False
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self.last_task_name = None
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self.printed_last_task = False
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def set_options(self, task_keys=None, var_options=None, direct=None):
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super(CallbackModule, self).set_options(task_keys=task_keys, var_options=var_options, direct=direct)
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global DONT_COLORIZE
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DONT_COLORIZE = self.get_option('nocolor')
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def _print_task(self, task_name=None):
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if task_name is None:
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task_name = self.last_task_name
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if not self.printed_last_task:
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self.printed_last_task = True
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line_length = 120
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if self.last_skipped:
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print()
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msg = colorize("# {0} {1}".format(task_name,
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'*' * (line_length - len(task_name))), 'bold')
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print(msg)
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def _indent_text(self, text, indent_level):
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lines = text.splitlines()
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result_lines = []
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for l in lines:
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result_lines.append("{0}{1}".format(' ' * indent_level, l))
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return '\n'.join(result_lines)
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def _print_diff(self, diff, indent_level):
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if isinstance(diff, dict):
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try:
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diff = '\n'.join(difflib.unified_diff(diff['before'].splitlines(),
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diff['after'].splitlines(),
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fromfile=diff.get('before_header',
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'new_file'),
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tofile=diff['after_header']))
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except AttributeError:
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diff = dict_diff(diff['before'], diff['after'])
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if diff:
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diff = colorize(str(diff), 'changed')
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print(self._indent_text(diff, indent_level + 4))
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def _print_host_or_item(self, host_or_item, changed, msg, diff, is_host, error, stdout, stderr):
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if is_host:
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indent_level = 0
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name = colorize(host_or_item.name, 'not_so_bold')
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else:
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indent_level = 4
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if isinstance(host_or_item, dict):
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if 'key' in host_or_item.keys():
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host_or_item = host_or_item['key']
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name = colorize(to_text(host_or_item), 'bold')
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if error:
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color = 'failed'
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change_string = colorize('FAILED!!!', color)
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else:
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color = 'changed' if changed else 'ok'
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change_string = colorize("changed={0}".format(changed), color)
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msg = colorize(msg, color)
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line_length = 120
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spaces = ' ' * (40 - len(name) - indent_level)
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line = "{0} * {1}{2}- {3}".format(' ' * indent_level, name, spaces, change_string)
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if len(msg) < 50:
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line += ' -- {0}'.format(msg)
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print("{0} {1}---------".format(line, '-' * (line_length - len(line))))
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else:
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print("{0} {1}".format(line, '-' * (line_length - len(line))))
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print(self._indent_text(msg, indent_level + 4))
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if diff:
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self._print_diff(diff, indent_level)
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if stdout:
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stdout = colorize(stdout, 'failed')
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print(self._indent_text(stdout, indent_level + 4))
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if stderr:
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stderr = colorize(stderr, 'failed')
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print(self._indent_text(stderr, indent_level + 4))
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def v2_playbook_on_play_start(self, play):
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"""Run on start of the play."""
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pass
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def v2_playbook_on_task_start(self, task, **kwargs):
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"""Run when a task starts."""
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self.last_task_name = task.get_name()
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self.printed_last_task = False
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def _print_task_result(self, result, error=False, **kwargs):
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"""Run when a task finishes correctly."""
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if 'print_action' in result._task.tags or error or self._display.verbosity > 1:
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self._print_task()
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self.last_skipped = False
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msg = to_text(result._result.get('msg', '')) or\
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to_text(result._result.get('reason', ''))
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stderr = [result._result.get('exception', None),
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result._result.get('module_stderr', None)]
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stderr = "\n".join([e for e in stderr if e]).strip()
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self._print_host_or_item(result._host,
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result._result.get('changed', False),
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msg,
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result._result.get('diff', None),
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is_host=True,
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error=error,
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stdout=result._result.get('module_stdout', None),
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stderr=stderr.strip(),
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)
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if 'results' in result._result:
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for r in result._result['results']:
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failed = 'failed' in r
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stderr = [r.get('exception', None), r.get('module_stderr', None)]
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stderr = "\n".join([e for e in stderr if e]).strip()
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self._print_host_or_item(r['item'],
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r.get('changed', False),
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to_text(r.get('msg', '')),
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r.get('diff', None),
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is_host=False,
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error=failed,
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stdout=r.get('module_stdout', None),
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stderr=stderr.strip(),
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)
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else:
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self.last_skipped = True
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print('.', end="")
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def v2_playbook_on_stats(self, stats):
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"""Display info about playbook statistics."""
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print()
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self.printed_last_task = False
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self._print_task('STATS')
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hosts = sorted(stats.processed.keys())
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for host in hosts:
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s = stats.summarize(host)
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if s['failures'] or s['unreachable']:
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color = 'failed'
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elif s['changed']:
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color = 'changed'
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else:
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color = 'ok'
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msg = '{0} : ok={1}\tchanged={2}\tfailed={3}\tunreachable={4}\trescued={5}\tignored={6}'.format(
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host, s['ok'], s['changed'], s['failures'], s['unreachable'], s['rescued'], s['ignored'])
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print(colorize(msg, color))
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def v2_runner_on_skipped(self, result, **kwargs):
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"""Run when a task is skipped."""
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if self._display.verbosity > 1:
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self._print_task()
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self.last_skipped = False
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line_length = 120
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spaces = ' ' * (31 - len(result._host.name) - 4)
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line = " * {0}{1}- {2}".format(colorize(result._host.name, 'not_so_bold'),
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spaces,
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colorize("skipped", 'skipped'),)
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reason = result._result.get('skipped_reason', '') or \
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result._result.get('skip_reason', '')
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if len(reason) < 50:
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line += ' -- {0}'.format(reason)
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print("{0} {1}---------".format(line, '-' * (line_length - len(line))))
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else:
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print("{0} {1}".format(line, '-' * (line_length - len(line))))
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print(self._indent_text(reason, 8))
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print(reason)
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def v2_runner_on_ok(self, result, **kwargs):
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self._print_task_result(result, error=False, **kwargs)
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def v2_runner_on_failed(self, result, **kwargs):
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self._print_task_result(result, error=True, **kwargs)
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def v2_runner_on_unreachable(self, result, **kwargs):
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self._print_task_result(result, error=True, **kwargs)
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v2_playbook_on_handler_task_start = v2_playbook_on_task_start
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