mirror of
https://github.com/thegeeklab/ansible-later.git
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213 lines
10 KiB
Python
213 lines
10 KiB
Python
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# (c) 2015, 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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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import os
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import shutil
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import stat
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import tempfile
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from ansible import constants as C
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from ansible.config.manager import ensure_type
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from ansible.errors import AnsibleError, AnsibleFileNotFound, AnsibleAction, AnsibleActionFail
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from ansible.module_utils._text import to_bytes, to_text
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from ansible.module_utils.parsing.convert_bool import boolean
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from ansible.module_utils.six import string_types
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from ansible.plugins.action import ActionBase
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from ansible.template import generate_ansible_template_vars
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class ActionModule(ActionBase):
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TRANSFERS_FILES = True
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DEFAULT_NEWLINE_SEQUENCE = "\n"
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def run(self, tmp=None, task_vars=None):
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''' handler for template operations '''
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if task_vars is None:
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task_vars = dict()
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result = super(ActionModule, self).run(tmp, task_vars)
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del tmp # tmp no longer has any effect
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source = self._task.args.get('src', None)
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dest = self._task.args.get('dest', None)
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force = boolean(self._task.args.get('force', True), strict=False)
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follow = boolean(self._task.args.get('follow', False), strict=False)
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state = self._task.args.get('state', None)
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newline_sequence = self._task.args.get('newline_sequence', self.DEFAULT_NEWLINE_SEQUENCE)
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variable_start_string = self._task.args.get('variable_start_string', None)
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variable_end_string = self._task.args.get('variable_end_string', None)
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block_start_string = self._task.args.get('block_start_string', None)
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block_end_string = self._task.args.get('block_end_string', None)
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trim_blocks = boolean(self._task.args.get('trim_blocks', True), strict=False)
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lstrip_blocks = boolean(self._task.args.get('lstrip_blocks', False), strict=False)
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output_encoding = self._task.args.get('output_encoding', 'utf-8') or 'utf-8'
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# Option `lstrip_blocks' was added in Jinja2 version 2.7.
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if lstrip_blocks:
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try:
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import jinja2.defaults
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except ImportError:
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raise AnsibleError('Unable to import Jinja2 defaults for determing Jinja2 features.')
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try:
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jinja2.defaults.LSTRIP_BLOCKS
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except AttributeError:
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raise AnsibleError("Option `lstrip_blocks' is only available in Jinja2 versions >=2.7")
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wrong_sequences = ["\\n", "\\r", "\\r\\n"]
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allowed_sequences = ["\n", "\r", "\r\n"]
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# We need to convert unescaped sequences to proper escaped sequences for Jinja2
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if newline_sequence in wrong_sequences:
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newline_sequence = allowed_sequences[wrong_sequences.index(newline_sequence)]
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try:
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for s_type in ('source', 'dest', 'state', 'newline_sequence', 'variable_start_string', 'variable_end_string', 'block_start_string',
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'block_end_string'):
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value = locals()[s_type]
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value = ensure_type(value, 'string')
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if value is not None and not isinstance(value, string_types):
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raise AnsibleActionFail("%s is expected to be a string, but got %s instead" % (s_type, type(value)))
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locals()[s_type] = value
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for b_type in ('force', 'follow', 'trim_blocks'):
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value = locals()[b_type]
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value = ensure_type(value, 'boolean')
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if value is not None and not isinstance(value, bool):
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raise AnsibleActionFail("%s is expected to be a boolean, but got %s instead" % (b_type, type(value)))
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locals()[b_type] = value
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if state is not None:
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raise AnsibleActionFail("'state' cannot be specified on a template")
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elif source is None or dest is None:
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raise AnsibleActionFail("src and dest are required")
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elif newline_sequence not in allowed_sequences:
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raise AnsibleActionFail("newline_sequence needs to be one of: \n, \r or \r\n")
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else:
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try:
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source = self._find_needle('templates', source)
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except AnsibleError as e:
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raise AnsibleActionFail(to_text(e))
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mode = self._task.args.get('mode', None)
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if mode == 'preserve':
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mode = '0%03o' % stat.S_IMODE(os.stat(source).st_mode)
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# Get vault decrypted tmp file
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try:
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tmp_source = self._loader.get_real_file(source)
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except AnsibleFileNotFound as e:
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raise AnsibleActionFail("could not find src=%s, %s" % (source, to_text(e)))
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b_tmp_source = to_bytes(tmp_source, errors='surrogate_or_strict')
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# template the source data locally & get ready to transfer
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try:
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with open(b_tmp_source, 'rb') as f:
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try:
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template_data = to_text(f.read(), errors='surrogate_or_strict')
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except UnicodeError:
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raise AnsibleActionFail("Template source files must be utf-8 encoded")
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# set jinja2 internal search path for includes
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searchpath = task_vars.get('ansible_search_path', [])
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searchpath.extend([self._loader._basedir, os.path.dirname(source)])
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# We want to search into the 'templates' subdir of each search path in
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# addition to our original search paths.
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newsearchpath = []
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for p in searchpath:
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newsearchpath.append(os.path.join(p, 'templates'))
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newsearchpath.append(p)
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searchpath = newsearchpath
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self._templar.environment.loader.searchpath = searchpath
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self._templar.environment.newline_sequence = newline_sequence
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if block_start_string is not None:
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self._templar.environment.block_start_string = block_start_string
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if block_end_string is not None:
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self._templar.environment.block_end_string = block_end_string
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if variable_start_string is not None:
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self._templar.environment.variable_start_string = variable_start_string
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if variable_end_string is not None:
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self._templar.environment.variable_end_string = variable_end_string
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self._templar.environment.trim_blocks = trim_blocks
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self._templar.environment.lstrip_blocks = lstrip_blocks
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# add ansible 'template' vars
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temp_vars = task_vars.copy()
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temp_vars.update(generate_ansible_template_vars(source))
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old_vars = self._templar._available_variables
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self._templar.set_available_variables(temp_vars)
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resultant = self._templar.do_template(template_data, preserve_trailing_newlines=True, escape_backslashes=False)
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self._templar.set_available_variables(old_vars)
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except AnsibleAction:
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raise
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except Exception as e:
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raise AnsibleActionFail("%s: %s" % (type(e).__name__, to_text(e)))
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finally:
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self._loader.cleanup_tmp_file(b_tmp_source)
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new_task = self._task.copy()
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# mode is either the mode from task.args or the mode of the source file if the task.args
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# mode == 'preserve'
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new_task.args['mode'] = mode
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new_task.args.pop('newline_sequence', None)
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new_task.args.pop('block_start_string', None)
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new_task.args.pop('block_end_string', None)
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new_task.args.pop('variable_start_string', None)
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new_task.args.pop('variable_end_string', None)
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new_task.args.pop('trim_blocks', None)
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new_task.args.pop('lstrip_blocks', None)
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new_task.args.pop('output_encoding', None)
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local_tempdir = tempfile.mkdtemp(dir=C.DEFAULT_LOCAL_TMP)
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try:
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result_file = os.path.join(local_tempdir, os.path.basename(source))
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with open(to_bytes(result_file, errors='surrogate_or_strict'), 'wb') as f:
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f.write(to_bytes(resultant, encoding=output_encoding, errors='surrogate_or_strict'))
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new_task.args.update(
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dict(
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src=result_file,
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dest=dest,
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follow=follow,
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),
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)
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copy_action = self._shared_loader_obj.action_loader.get('copy',
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task=new_task,
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connection=self._connection,
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play_context=self._play_context,
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loader=self._loader,
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templar=self._templar,
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shared_loader_obj=self._shared_loader_obj)
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result.update(copy_action.run(task_vars=task_vars))
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finally:
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shutil.rmtree(to_bytes(local_tempdir, errors='surrogate_or_strict'))
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except AnsibleAction as e:
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result.update(e.result)
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finally:
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self._remove_tmp_path(self._connection._shell.tmpdir)
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return result
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