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feab57e270
- added terse syntax to modules.rst - added description of special variables to template module
250 lines
8.2 KiB
Python
Executable file
250 lines
8.2 KiB
Python
Executable file
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2012, 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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import shutil
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import stat
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import grp
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import pwd
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try:
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import selinux
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HAVE_SELINUX=True
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except ImportError:
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HAVE_SELINUX=False
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DOCUMENTATION = '''
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---
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module: file
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short_description: Sets attributes of files
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description:
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- Sets attributes of files, symlinks, and directories, or removes
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files/symlinks/directories. Many other modules support the same options as
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the file module - including M(copy), M(template), and M(assmeble).
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options:
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path:
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description:
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- defines the file being managed, unless when used with I(state=link), and then sets the destination to create a symbolic link to using I(src)
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required: true
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default: []
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aliases: []
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state:
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description:
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- If C(directory), all immediate subdirectories will be created if they
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do not exist. If C(file), the file will NOT be created if it does not
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exist, see the M(copy) or M(template) module if you want that behavior.
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If C(link), the symbolic link will be created or changed. If C(absent),
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directories will be recursively deleted, and files or symlinks will be
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unlinked.
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required: false
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default: file
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choices: [ file, link, directory, absent ]
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mode:
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required: false
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default: null
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choices: []
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description:
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- mode the file or directory should be, such as 0644 as would be fed to
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owner:
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required: false
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default: null
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choices: []
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description:
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- name of the user that should own the file/directory, as would be fed to I(chown)
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group:
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required: false
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default: null
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choices: []
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description:
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- name of the group that should own the file/directory, as would be fed to I(chown)
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src:
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required: false
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default: null
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choices: []
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description:
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- path of the file to link to (applies only to C(state=link)).
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seuser:
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required: false
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default: null
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choices: []
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description:
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- user part of SELinux file context. Will default to system policy, if
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applicable. If set to C(_default), it will use the C(user) portion of the
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the policy if available
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serole:
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required: false
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default: null
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choices: []
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description:
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- role part of SELinux file context, C(_default) feature works as for I(seuser).
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setype:
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required: false
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default: null
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choices: []
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description:
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- type part of SELinux file context, C(_default) feature works as for I(seuser).
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selevel:
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required: false
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default: "s0"
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choices: []
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description:
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- level part of the SELinux file context. This is the MLS/MCS attribute,
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sometimes known as the C(range). C(_default) feature works as for
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I(seuser).
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context:
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required: false
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default: null
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choices: [ "default" ]
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description:
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- accepts only C(default) as value. This will restore a file's SELinux context
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in the policy. Does nothing if no default value is available.
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examples:
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- code: "file: path=/etc/foo.conf owner=foo group=foo mode=0644"
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description: Example from Ansible Playbooks
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- code: "file: src=/file/to/link/to dest=/path/to/symlink owner=foo group=foo state=link"
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notes:
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- See also M(copy), M(template), M(assemble)
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requirements: [ ]
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author: Michael DeHaan
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'''
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def main():
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# FIXME: pass this around, should not use global
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global module
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module = AnsibleModule(
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check_invalid_arguments = False,
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argument_spec = dict(
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state = dict(choices=['file','directory','link','absent'], default='file'),
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path = dict(aliases=['dest', 'name'], required=True),
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),
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add_file_common_args=True
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)
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params = module.params
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state = params['state']
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path = os.path.expanduser(params['path'])
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# source is both the source of a symlink or an informational passing of the src for a template module
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# or copy module, even if this module never uses it, it is needed to key off some things
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src = params.get('src', None)
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if src:
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src = os.path.expanduser(src)
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if src is not None and os.path.isdir(path) and state != "link":
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params['path'] = path = os.path.join(path, os.path.basename(src))
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file_args = module.load_file_common_arguments(params)
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if state == 'link' and (src is None or path is None):
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module.fail_json(msg='src and dest are required for "link" state')
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elif path is None:
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module.fail_json(msg='path is required')
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changed = False
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prev_state = 'absent'
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if os.path.lexists(path):
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if os.path.islink(path):
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prev_state = 'link'
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elif os.path.isdir(path):
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prev_state = 'directory'
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else:
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prev_state = 'file'
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if prev_state != 'absent' and state == 'absent':
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try:
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if prev_state == 'directory':
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if os.path.islink(path):
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os.unlink(path)
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else:
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try:
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shutil.rmtree(path, ignore_errors=False)
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except:
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module.exit_json(msg="rmtree failed")
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else:
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os.unlink(path)
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except Exception, e:
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module.fail_json(path=path, msg=str(e))
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module.exit_json(path=path, changed=True)
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if prev_state != 'absent' and prev_state != state:
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module.fail_json(path=path, msg='refusing to convert between %s and %s for %s' % (prev_state, state, src))
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if prev_state == 'absent' and state == 'absent':
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module.exit_json(path=path, changed=False)
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if state == 'file':
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if prev_state != 'file':
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module.fail_json(path=path, msg='file (%s) does not exist, use copy or template module to create' % path)
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changed = module.set_file_attributes_if_different(file_args, changed)
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module.exit_json(path=path, changed=changed)
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elif state == 'directory':
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if prev_state == 'absent':
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os.makedirs(path)
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changed = True
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changed = module.set_directory_attributes_if_different(file_args, changed)
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module.exit_json(path=path, changed=changed)
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elif state == 'link':
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if os.path.isabs(src):
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abs_src = src
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else:
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module.fail_json(msg="absolute paths are required")
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if not os.path.exists(abs_src):
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module.fail_json(path=path, src=src, msg='src file does not exist')
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if prev_state == 'absent':
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os.symlink(src, path)
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changed = True
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elif prev_state == 'link':
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old_src = os.readlink(path)
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if not os.path.isabs(old_src):
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old_src = os.path.join(os.path.dirname(path), old_src)
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if old_src != src:
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os.unlink(path)
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os.symlink(src, path)
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changed = True
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else:
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module.fail_json(dest=path, src=src, msg='unexpected position reached')
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# set modes owners and context as needed
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file_args = module.load_file_common_arguments(module.params)
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changed = module.set_context_if_different(path, file_args['secontext'], changed)
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changed = module.set_owner_if_different(path, file_args['owner'], changed)
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changed = module.set_group_if_different(path, file_args['group'], changed)
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changed = module.set_mode_if_different(path, file_args['mode'], changed)
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module.exit_json(dest=path, src=src, changed=changed)
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module.fail_json(path=path, msg='unexpected position reached')
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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