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190 lines
9.4 KiB
Python
190 lines
9.4 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 os
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from ansible.playbook.task_include import TaskInclude
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from ansible.playbook.role_include import IncludeRole
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from ansible.template import Templar
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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class IncludedFile:
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def __init__(self, filename, args, task, is_role=False):
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self._filename = filename
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self._args = args
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self._task = task
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self._hosts = []
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self._is_role = is_role
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def add_host(self, host):
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if host not in self._hosts:
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self._hosts.append(host)
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return
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raise ValueError()
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def __eq__(self, other):
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return other._filename == self._filename and other._args == self._args and other._task._parent._uuid == self._task._parent._uuid
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def __repr__(self):
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return "%s (%s): %s" % (self._filename, self._args, self._hosts)
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@staticmethod
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def process_include_results(results, iterator, loader, variable_manager):
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included_files = []
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task_vars_cache = {}
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for res in results:
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original_host = res._host
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original_task = res._task
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if original_task.action in ('include', 'include_tasks', 'include_role'):
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if original_task.loop:
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if 'results' not in res._result:
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continue
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include_results = res._result['results']
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else:
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include_results = [res._result]
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for include_result in include_results:
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# if the task result was skipped or failed, continue
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if 'skipped' in include_result and include_result['skipped'] or 'failed' in include_result and include_result['failed']:
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continue
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cache_key = (iterator._play, original_host, original_task)
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try:
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task_vars = task_vars_cache[cache_key]
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except KeyError:
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task_vars = task_vars_cache[cache_key] = variable_manager.get_vars(play=iterator._play, host=original_host, task=original_task)
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templar = Templar(loader=loader, variables=task_vars)
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include_variables = include_result.get('include_variables', dict())
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loop_var = 'item'
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index_var = None
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if original_task.loop_control:
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loop_var = original_task.loop_control.loop_var
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index_var = original_task.loop_control.index_var
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if loop_var in include_result:
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task_vars[loop_var] = include_variables[loop_var] = include_result[loop_var]
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if index_var and index_var in include_result:
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task_vars[index_var] = include_variables[index_var] = include_result[index_var]
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if '_ansible_item_label' in include_result:
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task_vars['_ansible_item_label'] = include_variables['_ansible_item_label'] = include_result['_ansible_item_label']
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if original_task.no_log and '_ansible_no_log' not in include_variables:
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task_vars['_ansible_no_log'] = include_variables['_ansible_no_log'] = original_task.no_log
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if original_task.action in ('include', 'include_tasks'):
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include_file = None
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if original_task:
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if original_task.static:
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continue
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if original_task._parent:
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# handle relative includes by walking up the list of parent include
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# tasks and checking the relative result to see if it exists
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parent_include = original_task._parent
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cumulative_path = None
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while parent_include is not None:
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if not isinstance(parent_include, TaskInclude):
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parent_include = parent_include._parent
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continue
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if isinstance(parent_include, IncludeRole):
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parent_include_dir = parent_include._role_path
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else:
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parent_include_dir = os.path.dirname(templar.template(parent_include.args.get('_raw_params')))
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if cumulative_path is not None and not os.path.isabs(cumulative_path):
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cumulative_path = os.path.join(parent_include_dir, cumulative_path)
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else:
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cumulative_path = parent_include_dir
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include_target = templar.template(include_result['include'])
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if original_task._role:
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new_basedir = os.path.join(original_task._role._role_path, 'tasks', cumulative_path)
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candidates = [loader.path_dwim_relative(original_task._role._role_path, 'tasks', include_target),
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loader.path_dwim_relative(new_basedir, 'tasks', include_target)]
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for include_file in candidates:
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try:
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# may throw OSError
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os.stat(include_file)
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# or select the task file if it exists
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break
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except OSError:
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pass
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else:
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include_file = loader.path_dwim_relative(loader.get_basedir(), cumulative_path, include_target)
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if os.path.exists(include_file):
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break
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else:
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parent_include = parent_include._parent
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if include_file is None:
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if original_task._role:
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include_target = templar.template(include_result['include'])
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include_file = loader.path_dwim_relative(original_task._role._role_path, 'tasks', include_target)
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else:
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include_file = loader.path_dwim(include_result['include'])
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include_file = templar.template(include_file)
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inc_file = IncludedFile(include_file, include_variables, original_task)
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else:
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# template the included role's name here
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role_name = include_variables.pop('name', include_variables.pop('role', None))
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if role_name is not None:
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role_name = templar.template(role_name)
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new_task = original_task.copy()
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new_task._role_name = role_name
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for from_arg in new_task.FROM_ARGS:
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if from_arg in include_variables:
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from_key = from_arg.replace('_from', '')
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new_task._from_files[from_key] = templar.template(include_variables.pop(from_arg))
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inc_file = IncludedFile(role_name, include_variables, new_task, is_role=True)
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idx = 0
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orig_inc_file = inc_file
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while 1:
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try:
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pos = included_files[idx:].index(orig_inc_file)
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# pos is relative to idx since we are slicing
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# use idx + pos due to relative indexing
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inc_file = included_files[idx + pos]
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except ValueError:
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included_files.append(orig_inc_file)
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inc_file = orig_inc_file
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try:
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inc_file.add_host(original_host)
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except ValueError:
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# The host already exists for this include, advance forward, this is a new include
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idx += pos + 1
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else:
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break
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return included_files
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