Adding Play class for v2

v2/ansible/parsing/mod_args.py

@@ -190,7 +190,7 @@ class ModuleArgsParser:
         task, dealing with all sorts of levels of fuzziness.
         '''
 
-        assert type(ds) == dict
+        assert isinstance(ds, dict)
 
         thing      = None
 

v2/ansible/playbook/block.py

@@ -19,9 +19,9 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from ansible.playbook.base import Base
-from ansible.playbook.task import Task
 from ansible.playbook.attribute import Attribute, FieldAttribute
+from ansible.playbook.base import Base
+from ansible.playbook.helpers import load_list_of_tasks
 
 class Block(Base):
 
@@ -60,25 +60,20 @@ class Block(Base):
                 is_block = True
                 break
         if not is_block:
-            return dict(block=ds)
+            if isinstance(ds, list):
+                return dict(block=ds)
+            else:
+                return dict(block=[ds])
         return ds
 
-    def _load_list_of_tasks(self, ds):
-        assert type(ds) == list
-        task_list = []
-        for task in ds:
-            t = Task.load(task)
-            task_list.append(t)
-        return task_list
-
     def _load_block(self, attr, ds):
-        return self._load_list_of_tasks(ds)
+        return load_list_of_tasks(ds)
 
     def _load_rescue(self, attr, ds):
-        return self._load_list_of_tasks(ds)
+        return load_list_of_tasks(ds)
 
     def _load_always(self, attr, ds):
-        return self._load_list_of_tasks(ds)
+        return load_list_of_tasks(ds)
 
     # not currently used
     #def _load_otherwise(self, attr, ds):

v2/ansible/playbook/helpers.py

@@ -0,0 +1,76 @@
+# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
+#
+# 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 types import NoneType
+
+
+def load_list_of_blocks(ds, role=None, loader=None):
+    '''
+    Given a list of mixed task/block data (parsed from YAML),
+    return a list of Block() objects, where implicit blocks
+    are created for each bare Task.
+    '''
+
+    # we import here to prevent a circular dependency with imports
+    from ansible.playbook.block import Block
+
+    assert type(ds) in (list, NoneType)
+
+    block_list = []
+    if ds:
+        for block in ds:
+            b = Block.load(block, role=role, loader=loader)
+            block_list.append(b)
+
+    return block_list
+
+def load_list_of_tasks(ds, block=None, role=None, loader=None):
+    '''
+    Given a list of task datastructures (parsed from YAML),
+    return a list of Task() objects.
+    '''
+
+    # we import here to prevent a circular dependency with imports
+    from ansible.playbook.task import Task
+
+    assert type(ds) == list
+
+    task_list = []
+    for task in ds:
+        t = Task.load(task, block=block, role=role, loader=loader)
+        task_list.append(t)
+
+    return task_list
+
+def load_list_of_roles(ds, loader=None):
+    '''
+    Loads and returns a list of RoleInclude objects from the datastructure
+    list of role definitions
+    '''
+
+    # we import here to prevent a circular dependency with imports
+    from ansible.playbook.role.include import RoleInclude
+
+    assert isinstance(ds, list)
+
+    roles = []
+    for role_def in ds:
+        i = RoleInclude.load(role_def, loader=loader)
+        roles.append(i)
+
+    return roles
+

v2/ansible/playbook/play.py

@@ -18,3 +18,140 @@
 # Make coding more python3-ish
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
+
+from ansible.errors import AnsibleError, AnsibleParserError
+
+from ansible.parsing.yaml import DataLoader
+
+from ansible.playbook.attribute import Attribute, FieldAttribute
+from ansible.playbook.base import Base
+from ansible.playbook.helpers import load_list_of_blocks, load_list_of_roles
+
+
+__all__ = ['Play']
+
+
+class Play(Base):
+
+    """
+    A play is a language feature that represents a list of roles and/or
+    task/handler blocks to execute on a given set of hosts.
+
+    Usage:
+
+       Play.load(datastructure) -> Play
+       Play.something(...)
+    """
+
+    # =================================================================================
+    # Connection-Related Attributes
+    _accelerate          = FieldAttribute(isa='bool', default=False)
+    _accelerate_ipv6     = FieldAttribute(isa='bool', default=False)
+    _accelerate_port     = FieldAttribute(isa='int', default=5099)
+    _connection          = FieldAttribute(isa='string', default='smart')
+    _gather_facts        = FieldAttribute(isa='string', default='smart')
+    _hosts               = FieldAttribute(isa='list', default=[])
+    _name                = FieldAttribute(isa='string', default='<no name specified>')
+    _port                = FieldAttribute(isa='int', default=22)
+    _remote_user         = FieldAttribute(isa='string', default='root')
+    _su                  = FieldAttribute(isa='bool', default=False)
+    _su_user             = FieldAttribute(isa='string', default='root')
+    _sudo                = FieldAttribute(isa='bool', default=False)
+    _sudo_user           = FieldAttribute(isa='string', default='root')
+    _tags                = FieldAttribute(isa='list', default=[])
+
+    # Variable Attributes
+    _vars                = FieldAttribute(isa='dict', default=dict())
+    _vars_files          = FieldAttribute(isa='list', default=[])
+    _vars_prompt         = FieldAttribute(isa='dict', default=dict())
+    _vault_password      = FieldAttribute(isa='string')
+
+    # Block (Task) Lists Attributes
+    _handlers            = FieldAttribute(isa='list', default=[])
+    _pre_tasks           = FieldAttribute(isa='list', default=[])
+    _post_tasks          = FieldAttribute(isa='list', default=[])
+    _tasks               = FieldAttribute(isa='list', default=[])
+
+    # Role Attributes
+    _roles               = FieldAttribute(isa='list', default=[])
+
+    # Flag/Setting Attributes
+    _any_errors_fatal    = FieldAttribute(isa='bool', default=False)
+    _max_fail_percentage = FieldAttribute(isa='string', default='0')
+    _no_log              = FieldAttribute(isa='bool', default=False)
+    _serial              = FieldAttribute(isa='int', default=0)
+
+    # =================================================================================
+
+    def __init__(self):
+        super(Play, self).__init__()
+
+    def __repr__(self):
+        return self.get_name()
+
+    def get_name(self):
+       ''' return the name of the Play '''
+       return "PLAY: %s" % self._attributes.get('name')
+
+    @staticmethod
+    def load(data, loader=None):
+        p = Play()
+        return p.load_data(data, loader=loader)
+
+    def munge(self, ds):
+        '''
+        Adjusts play datastructure to cleanup old/legacy items
+        '''
+
+        assert isinstance(ds, dict)
+
+        # The use of 'user' in the Play datastructure was deprecated to
+        # line up with the same change for Tasks, due to the fact that
+        # 'user' conflicted with the user module.
+        if 'user' in ds:
+            # this should never happen, but error out with a helpful message
+            # to the user if it does...
+            if 'remote_user' in ds:
+                raise AnsibleParserError("both 'user' and 'remote_user' are set for %s. The use of 'user' is deprecated, and should be removed" % self.get_name(), obj=ds)
+
+            ds['remote_user'] = ds['user']
+            del ds['user']
+
+        return ds
+
+    def _load_tasks(self, attr, ds):
+        '''
+        Loads a list of blocks from a list which may be mixed tasks/blocks.
+        Bare tasks outside of a block are given an implicit block.
+        '''
+        return load_list_of_blocks(ds)
+
+    def _load_pre_tasks(self, attr, ds):
+        '''
+        Loads a list of blocks from a list which may be mixed tasks/blocks.
+        Bare tasks outside of a block are given an implicit block.
+        '''
+        return load_list_of_blocks(ds)
+
+    def _load_post_tasks(self, attr, ds):
+        '''
+        Loads a list of blocks from a list which may be mixed tasks/blocks.
+        Bare tasks outside of a block are given an implicit block.
+        '''
+        return load_list_of_blocks(ds)
+
+    def _load_handlers(self, attr, ds):
+        '''
+        Loads a list of blocks from a list which may be mixed handlers/blocks.
+        Bare handlers outside of a block are given an implicit block.
+        '''
+        return load_list_of_blocks(ds)
+
+    def _load_roles(self, attr, ds):
+        '''
+        Loads and returns a list of RoleInclude objects from the datastructure
+        list of role definitions
+        '''
+        return load_list_of_roles(ds, loader=self._loader)
+
+    # FIXME: post_validation needs to ensure that su/sudo are not both set

v2/ansible/playbook/role/__init__.py

@@ -30,7 +30,7 @@ from ansible.errors import AnsibleError, AnsibleParserError
 from ansible.parsing.yaml import DataLoader
 from ansible.playbook.attribute import FieldAttribute
 from ansible.playbook.base import Base
-from ansible.playbook.block import Block
+from ansible.playbook.helpers import load_list_of_blocks
 from ansible.playbook.role.include import RoleInclude
 from ansible.playbook.role.metadata import RoleMetadata
 
@@ -95,11 +95,11 @@ class Role:
 
         task_data = self._load_role_yaml('tasks')
         if task_data:
-            self._task_blocks = self._load_list_of_blocks(task_data)
+            self._task_blocks = load_list_of_blocks(task_data)
 
         handler_data = self._load_role_yaml('handlers')
         if handler_data:
-            self._handler_blocks = self._load_list_of_blocks(handler_data)
+            self._handler_blocks = load_list_of_blocks(handler_data)
 
         # vars and default vars are regular dictionaries
         self._role_vars    = self._load_role_yaml('vars')
@@ -135,23 +135,6 @@ class Role:
                     return m # exactly one main file
             return possible_mains[0] # zero mains (we still need to return something)
 
-    def _load_list_of_blocks(self, ds):
-        '''
-        Given a list of mixed task/block data (parsed from YAML),
-        return a list of Block() objects, where implicit blocks
-        are created for each bare Task.
-        '''
-
-        assert type(ds) in (list, NoneType)
-
-        block_list = []
-        if ds:
-            for block in ds:
-                b = Block(block)
-                block_list.append(b)
-
-        return block_list
-
     def _load_dependencies(self):
         '''
         Recursively loads role dependencies from the metadata list of

v2/ansible/playbook/role/metadata.py

@@ -24,6 +24,7 @@ from six import iteritems, string_types
 from ansible.errors import AnsibleParserError
 from ansible.playbook.attribute import Attribute, FieldAttribute
 from ansible.playbook.base import Base
+from ansible.playbook.helpers import load_list_of_roles
 from ansible.playbook.role.include import RoleInclude
 
 
@@ -58,18 +59,10 @@ class RoleMetadata(Base):
 
     def _load_dependencies(self, attr, ds):
         '''
-        This is a helper loading function for the dependencis list,
+        This is a helper loading function for the dependencies list,
         which returns a list of RoleInclude objects
         '''
-
-        assert isinstance(ds, list)
-
-        deps = []
-        for role_def in ds:
-            i = RoleInclude.load(role_def, loader=self._loader)
-            deps.append(i)
-
-        return deps
+        return load_list_of_roles(ds, loader=self._loader)
 
     def _load_galaxy_info(self, attr, ds):
         '''