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# Copyright 2017 RedHat, inc # # 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/>. ############################################# from __future__ import (absolute_import, division, print_function) __metaclass__ = type DOCUMENTATION = ''' name: host_group_vars version_added: "2.4" short_description: In charge of loading group_vars and host_vars requirements: - Enabled in configuration description: - Loads YAML vars into corresponding groups/hosts in group_vars/ and host_vars/ directories. - Files are restricted by extension to one of .yaml, .json, .yml or no extension. - Hidden (starting with '.') and backup (ending with '~') files and directories are ignored. - Only applies to inventory sources that are existing paths. - Starting in 2.10, this plugin requires enabling and is enabled by default. options: stage: ini: - key: stage section: vars_host_group_vars env: - name: ANSIBLE_VARS_PLUGIN_STAGE _valid_extensions: default: [".yml", ".yaml", ".json"] description: - "Check all of these extensions when looking for 'variable' files which should be YAML or JSON or vaulted versions of these." - 'This affects vars_files, include_vars, inventory and vars plugins among others.' env: - name: ANSIBLE_YAML_FILENAME_EXT ini: - key: yaml_valid_extensions section: defaults type: list elements: string extends_documentation_fragment: - vars_plugin_staging ''' import os from ansible import constants as C from ansible.errors import AnsibleParserError from ansible.module_utils._text import to_bytes, to_native, to_text from ansible.plugins.vars import BaseVarsPlugin from ansible.inventory.host import Host from ansible.inventory.group import Group from ansible.utils.vars import combine_vars FOUND = {} # type: dict[str, list[str]] class VarsModule(BaseVarsPlugin): REQUIRES_ENABLED = True def get_vars(self, loader, path, entities, cache=True): ''' parses the inventory file ''' if not isinstance(entities, list): entities = [entities] super(VarsModule, self).get_vars(loader, path, entities) data = {} for entity in entities: if isinstance(entity, Host): subdir = 'host_vars' elif isinstance(entity, Group): subdir = 'group_vars' else: raise AnsibleParserError("Supplied entity must be Host or Group, got %s instead" % (type(entity))) # avoid 'chroot' type inventory hostnames /path/to/chroot if not entity.name.startswith(os.path.sep): try: found_files = [] # load vars b_opath = os.path.realpath(to_bytes(os.path.join(self._basedir, subdir))) opath = to_text(b_opath) key = '%s.%s' % (entity.name, opath) if cache and key in FOUND: found_files = FOUND[key] else: # no need to do much if path does not exist for basedir if os.path.exists(b_opath): if os.path.isdir(b_opath): self._display.debug("\tprocessing dir %s" % opath) found_files = loader.find_vars_files(opath, entity.name) FOUND[key] = found_files else: self._display.warning("Found %s that is not a directory, skipping: %s" % (subdir, opath)) for found in found_files: new_data = loader.load_from_file(found, cache=True, unsafe=True) if new_data: # ignore empty files data = combine_vars(data, new_data) except Exception as e: raise AnsibleParserError(to_native(e)) return data