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# # This file is part of Ansible # # Ansible is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # Ansible is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with Ansible. If not, see <http://www.gnu.org/licenses/>. # Make coding more python3-ish from __future__ import (absolute_import, division, print_function) __metaclass__ = type from os.path import basename import ansible.constants as C from ansible.errors import AnsibleParserError from ansible.playbook.attribute import NonInheritableFieldAttribute from ansible.playbook.block import Block from ansible.playbook.task_include import TaskInclude from ansible.playbook.role import Role from ansible.playbook.role.include import RoleInclude from ansible.utils.display import Display from ansible.module_utils.six import string_types from ansible.template import Templar __all__ = ['IncludeRole'] display = Display() class IncludeRole(TaskInclude): """ A Role include is derived from a regular role to handle the special circumstances related to the `- include_role: ...` """ BASE = frozenset(('name', 'role')) # directly assigned FROM_ARGS = frozenset(('tasks_from', 'vars_from', 'defaults_from', 'handlers_from')) # used to populate from dict in role OTHER_ARGS = frozenset(('apply', 'public', 'allow_duplicates', 'rolespec_validate')) # assigned to matching property VALID_ARGS = BASE | FROM_ARGS | OTHER_ARGS # all valid args # ================================================================================= # ATTRIBUTES # private as this is a 'module options' vs a task property allow_duplicates = NonInheritableFieldAttribute(isa='bool', default=True, private=True, always_post_validate=True) public = NonInheritableFieldAttribute(isa='bool', default=False, private=True, always_post_validate=True) rolespec_validate = NonInheritableFieldAttribute(isa='bool', default=True, private=True, always_post_validate=True) def __init__(self, block=None, role=None, task_include=None): super(IncludeRole, self).__init__(block=block, role=role, task_include=task_include) self._from_files = {} self._parent_role = role self._role_name = None self._role_path = None def get_name(self): ''' return the name of the task ''' return self.name or "%s : %s" % (self.action, self._role_name) def get_block_list(self, play=None, variable_manager=None, loader=None): # only need play passed in when dynamic if play is None: myplay = self._parent._play else: myplay = play ri = RoleInclude.load(self._role_name, play=myplay, variable_manager=variable_manager, loader=loader, collection_list=self.collections) ri.vars |= self.vars if variable_manager is not None: available_variables = variable_manager.get_vars(play=myplay, task=self) else: available_variables = {} templar = Templar(loader=loader, variables=available_variables) from_files = templar.template(self._from_files) # build role actual_role = Role.load(ri, myplay, parent_role=self._parent_role, from_files=from_files, from_include=True, validate=self.rolespec_validate) actual_role._metadata.allow_duplicates = self.allow_duplicates if self.statically_loaded or self.public: myplay.roles.append(actual_role) # save this for later use self._role_path = actual_role._role_path # compile role with parent roles as dependencies to ensure they inherit # variables if not self._parent_role: dep_chain = [] else: dep_chain = list(self._parent_role._parents) dep_chain.append(self._parent_role) p_block = self.build_parent_block() # collections value is not inherited; override with the value we calculated during role setup p_block.collections = actual_role.collections blocks = actual_role.compile(play=myplay, dep_chain=dep_chain) for b in blocks: b._parent = p_block # HACK: parent inheritance doesn't seem to have a way to handle this intermediate override until squashed/finalized b.collections = actual_role.collections # updated available handlers in play handlers = actual_role.get_handler_blocks(play=myplay) for h in handlers: h._parent = p_block myplay.handlers = myplay.handlers + handlers return blocks, handlers @staticmethod def load(data, block=None, role=None, task_include=None, variable_manager=None, loader=None): ir = IncludeRole(block, role, task_include=task_include).load_data(data, variable_manager=variable_manager, loader=loader) # Validate options my_arg_names = frozenset(ir.args.keys()) # name is needed, or use role as alias ir._role_name = ir.args.get('name', ir.args.get('role')) if ir._role_name is None: raise AnsibleParserError("'name' is a required field for %s." % ir.action, obj=data) if 'public' in ir.args and ir.action not in C._ACTION_INCLUDE_ROLE: raise AnsibleParserError('Invalid options for %s: public' % ir.action, obj=data) # validate bad args, otherwise we silently ignore bad_opts = my_arg_names.difference(IncludeRole.VALID_ARGS) if bad_opts: raise AnsibleParserError('Invalid options for %s: %s' % (ir.action, ','.join(list(bad_opts))), obj=data) # build options for role includes for key in my_arg_names.intersection(IncludeRole.FROM_ARGS): from_key = key.removesuffix('_from') args_value = ir.args.get(key) if not isinstance(args_value, string_types): raise AnsibleParserError('Expected a string for %s but got %s instead' % (key, type(args_value))) ir._from_files[from_key] = basename(args_value) apply_attrs = ir.args.get('apply', {}) if apply_attrs and ir.action not in C._ACTION_INCLUDE_ROLE: raise AnsibleParserError('Invalid options for %s: apply' % ir.action, obj=data) elif not isinstance(apply_attrs, dict): raise AnsibleParserError('Expected a dict for apply but got %s instead' % type(apply_attrs), obj=data) # manual list as otherwise the options would set other task parameters we don't want. for option in my_arg_names.intersection(IncludeRole.OTHER_ARGS): setattr(ir, option, ir.args.get(option)) return ir def copy(self, exclude_parent=False, exclude_tasks=False): new_me = super(IncludeRole, self).copy(exclude_parent=exclude_parent, exclude_tasks=exclude_tasks) new_me.statically_loaded = self.statically_loaded new_me._from_files = self._from_files.copy() new_me._parent_role = self._parent_role new_me._role_name = self._role_name new_me._role_path = self._role_path return new_me def get_include_params(self): v = super(IncludeRole, self).get_include_params() if self._parent_role: v |= self._parent_role.get_role_params() v.setdefault('ansible_parent_role_names', []).insert(0, self._parent_role.get_name()) v.setdefault('ansible_parent_role_paths', []).insert(0, self._parent_role._role_path) return v