109 lines
4.1 KiB
Python
109 lines
4.1 KiB
Python
# (c) 2012-2014, 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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# 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 ansible import constants as C
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from ansible.errors import AnsibleParserError
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from ansible.module_utils._text import to_text
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from ansible.playbook.play import Play
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from ansible.playbook.playbook_include import PlaybookInclude
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from ansible.plugins import get_all_plugin_loaders
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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__all__ = ['Playbook']
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class Playbook:
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def __init__(self, loader):
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# Entries in the datastructure of a playbook may
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# be either a play or an include statement
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self._entries = []
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self._basedir = to_text(os.getcwd(), errors='surrogate_or_strict')
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self._loader = loader
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self._file_name = None
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@staticmethod
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def load(file_name, variable_manager=None, loader=None):
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pb = Playbook(loader=loader)
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pb._load_playbook_data(file_name=file_name, variable_manager=variable_manager)
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return pb
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def _load_playbook_data(self, file_name, variable_manager):
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if os.path.isabs(file_name):
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self._basedir = os.path.dirname(file_name)
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else:
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self._basedir = os.path.normpath(os.path.join(self._basedir, os.path.dirname(file_name)))
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# set the loaders basedir
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cur_basedir = self._loader.get_basedir()
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self._loader.set_basedir(self._basedir)
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self._file_name = file_name
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# dynamically load any plugins from the playbook directory
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for name, obj in get_all_plugin_loaders():
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if obj.subdir:
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plugin_path = os.path.join(self._basedir, obj.subdir)
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if os.path.isdir(plugin_path):
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obj.add_directory(plugin_path)
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ds = self._loader.load_from_file(os.path.basename(file_name))
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if not isinstance(ds, list):
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# restore the basedir in case this error is caught and handled
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self._loader.set_basedir(cur_basedir)
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raise AnsibleParserError("playbooks must be a list of plays", obj=ds)
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# Parse the playbook entries. For plays, we simply parse them
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# using the Play() object, and includes are parsed using the
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# PlaybookInclude() object
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for entry in ds:
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if not isinstance(entry, dict):
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# restore the basedir in case this error is caught and handled
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self._loader.set_basedir(cur_basedir)
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raise AnsibleParserError("playbook entries must be either a valid play or an include statement", obj=entry)
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if 'include' in entry:
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pb = PlaybookInclude.load(entry, basedir=self._basedir, variable_manager=variable_manager, loader=self._loader)
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if pb is not None:
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self._entries.extend(pb._entries)
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else:
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display.display("skipping playbook include '%s' due to conditional test failure" % entry.get('include', entry), color=C.COLOR_SKIP)
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else:
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entry_obj = Play.load(entry, variable_manager=variable_manager, loader=self._loader)
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self._entries.append(entry_obj)
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# we're done, so restore the old basedir in the loader
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self._loader.set_basedir(cur_basedir)
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def get_loader(self):
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return self._loader
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def get_plays(self):
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return self._entries[:]
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