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95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
# (c) 2014 Michael DeHaan, <michael@ansible.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 six import iteritems, string_types
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from ansible.errors import AnsibleParserError
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from ansible.playbook.attribute import Attribute, FieldAttribute
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from ansible.playbook.base import Base
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from ansible.playbook.helpers import load_list_of_roles
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from ansible.playbook.role.include import RoleInclude
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__all__ = ['RoleMetadata']
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class RoleMetadata(Base):
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'''
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This class wraps the parsing and validation of the optional metadata
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within each Role (meta/main.yml).
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'''
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_allow_duplicates = FieldAttribute(isa='bool', default=False)
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_dependencies = FieldAttribute(isa='list', default=[])
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_galaxy_info = FieldAttribute(isa='GalaxyInfo')
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def __init__(self, owner=None):
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self._owner = owner
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super(RoleMetadata, self).__init__()
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@staticmethod
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def load(data, owner, variable_manager=None, loader=None):
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'''
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Returns a new RoleMetadata object based on the datastructure passed in.
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'''
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if not isinstance(data, dict):
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raise AnsibleParserError("the 'meta/main.yml' for role %s is not a dictionary" % owner.get_name())
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m = RoleMetadata(owner=owner).load_data(data, variable_manager=variable_manager, loader=loader)
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return m
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def _load_dependencies(self, attr, ds):
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'''
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This is a helper loading function for the dependencies list,
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which returns a list of RoleInclude objects
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'''
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if ds is None:
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ds = []
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current_role_path = None
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if self._owner:
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current_role_path = os.path.dirname(self._owner._role_path)
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return load_list_of_roles(ds, current_role_path=current_role_path, variable_manager=self._variable_manager, loader=self._loader)
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def _load_galaxy_info(self, attr, ds):
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'''
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This is a helper loading function for the galaxy info entry
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in the metadata, which returns a GalaxyInfo object rather than
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a simple dictionary.
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'''
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return ds
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def serialize(self):
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return dict(
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allow_duplicates = self._allow_duplicates,
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dependencies = self._dependencies,
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)
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def deserialize(self, data):
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setattr(self, 'allow_duplicates', data.get('allow_duplicates', False))
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setattr(self, 'dependencies', data.get('dependencies', []))
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