Add play to the parent object structures for inheritence in v2

v2/ansible/playbook/base.py

@@ -324,6 +324,20 @@ class Base:
         # restore the UUID field
         setattr(self, '_uuid', data.get('uuid'))
 
+    def _extend_value(self, value, new_value):
+        '''
+        Will extend the value given with new_value (and will turn both
+        into lists if they are not so already). The values are run through
+        a set to remove duplicate values.
+        '''
+
+        if not isinstance(value, list):
+            value = [ value ]
+        if not isinstance(new_value, list):
+            new_value = [ new_value ]
+
+        return list(set(value + new_value))
+
     def __getstate__(self):
         return self.serialize()
 

v2/ansible/playbook/block.py

@@ -37,10 +37,11 @@ class Block(Base, Become, Conditional, Taggable):
     # similar to the 'else' clause for exceptions
     #_otherwise = FieldAttribute(isa='list')
 
-    def __init__(self, parent_block=None, role=None, task_include=None, use_handlers=False):
-        self._parent_block = parent_block
+    def __init__(self, play=None, parent_block=None, role=None, task_include=None, use_handlers=False):
+        self._play         = play
         self._role         = role
         self._task_include = task_include
+        self._parent_block = parent_block
         self._use_handlers = use_handlers
         self._dep_chain    = []
 
@@ -65,8 +66,8 @@ class Block(Base, Become, Conditional, Taggable):
         return all_vars
 
     @staticmethod
-    def load(data, parent_block=None, role=None, task_include=None, use_handlers=False, variable_manager=None, loader=None):
-        b = Block(parent_block=parent_block, role=role, task_include=task_include, use_handlers=use_handlers)
+    def load(data, play, parent_block=None, role=None, task_include=None, use_handlers=False, variable_manager=None, loader=None):
+        b = Block(play=play, parent_block=parent_block, role=role, task_include=task_include, use_handlers=use_handlers)
         return b.load_data(data, variable_manager=variable_manager, loader=loader)
 
     def preprocess_data(self, ds):
@@ -92,6 +93,7 @@ class Block(Base, Become, Conditional, Taggable):
     def _load_block(self, attr, ds):
         return load_list_of_tasks(
             ds,
+            play=self._play,
             block=self,
             role=self._role,
             task_include=self._task_include,
@@ -103,6 +105,7 @@ class Block(Base, Become, Conditional, Taggable):
     def _load_rescue(self, attr, ds):
         return load_list_of_tasks(
             ds,
+            play=self._play,
             block=self,
             role=self._role,
             task_include=self._task_include,
@@ -114,6 +117,7 @@ class Block(Base, Become, Conditional, Taggable):
     def _load_always(self, attr, ds):
         return load_list_of_tasks(
             ds, 
+            play=self._play,
             block=self, 
             role=self._role, 
             task_include=self._task_include,
@@ -126,6 +130,7 @@ class Block(Base, Become, Conditional, Taggable):
     #def _load_otherwise(self, attr, ds):
     #    return load_list_of_tasks(
     #        ds, 
+    #        play=self._play,
     #        block=self, 
     #        role=self._role, 
     #        task_include=self._task_include,
@@ -148,6 +153,7 @@ class Block(Base, Become, Conditional, Taggable):
             return new_task_list
 
         new_me = super(Block, self).copy()
+        new_me._play         = self._play
         new_me._use_handlers = self._use_handlers
         new_me._dep_chain    = self._dep_chain[:]
 
@@ -248,24 +254,44 @@ class Block(Base, Become, Conditional, Taggable):
         for dep in self._dep_chain:
             dep.set_loader(loader)
 
-    def _get_parent_attribute(self, attr):
+    def _get_parent_attribute(self, attr, extend=False):
         '''
         Generic logic to get the attribute or parent attribute for a block value.
         '''
 
         value = self._attributes[attr]
-        if not value:
-            if self._parent_block:
-                value = getattr(self._parent_block, attr)
-            elif self._role:
-                value = getattr(self._role, attr)
-                if not value and len(self._dep_chain):
-                    reverse_dep_chain = self._dep_chain[:]
-                    reverse_dep_chain.reverse()
-                    for dep in reverse_dep_chain:
-                        value = getattr(dep, attr)
-                        if value:
-                            break
+        if self._parent_block and (not value or extend):
+            parent_value = getattr(self._parent_block, attr)
+            if extend:
+                value = self._extend_value(value, parent_value)
+            else:
+                value = parent_value
+        if self._task_include and (not value or extend):
+            parent_value = getattr(self._task_include, attr)
+            if extend:
+                value = self._extend_value(value, parent_value)
+            else:
+                value = parent_value
+        if self._role and (not value or extend):
+            parent_value = getattr(self._role, attr)
+            if len(self._dep_chain) and (not value or extend):
+                reverse_dep_chain = self._dep_chain[:]
+                reverse_dep_chain.reverse()
+                for dep in reverse_dep_chain:
+                    dep_value = getattr(dep, attr)
+                    if extend:
+                        value = self._extend_value(value, parent_value)
+                    else:
+                        value = parent_value
+
+                    if value and not extend:
+                        break
+        if self._play and (not value or extend):
+            parent_value = getattr(self._play, attr)
+            if extend:
+                value = self._extend_value(value, parent_value)
+            else:
+                value = parent_value
 
         return value
 

v2/ansible/playbook/helpers.py

@@ -26,7 +26,7 @@ from ansible.errors import AnsibleParserError
 from ansible.parsing.yaml.objects import AnsibleBaseYAMLObject, AnsibleSequence
 
 
-def load_list_of_blocks(ds, parent_block=None, role=None, task_include=None, use_handlers=False, variable_manager=None, loader=None):
+def load_list_of_blocks(ds, play, parent_block=None, role=None, task_include=None, use_handlers=False, variable_manager=None, loader=None):
     '''
     Given a list of mixed task/block data (parsed from YAML),
     return a list of Block() objects, where implicit blocks
@@ -43,6 +43,7 @@ def load_list_of_blocks(ds, parent_block=None, role=None, task_include=None, use
         for block in ds:
             b = Block.load(
                 block,
+                play=play,
                 parent_block=parent_block,
                 role=role,
                 task_include=task_include,
@@ -55,7 +56,7 @@ def load_list_of_blocks(ds, parent_block=None, role=None, task_include=None, use
     return block_list
 
 
-def load_list_of_tasks(ds, block=None, role=None, task_include=None, use_handlers=False, variable_manager=None, loader=None):
+def load_list_of_tasks(ds, play, block=None, role=None, task_include=None, use_handlers=False, variable_manager=None, loader=None):
     '''
     Given a list of task datastructures (parsed from YAML),
     return a list of Task() or TaskInclude() objects.
@@ -76,6 +77,7 @@ def load_list_of_tasks(ds, block=None, role=None, task_include=None, use_handler
         if 'block' in task:
             t = Block.load(
                 task,
+                play=play,
                 parent_block=block,
                 role=role,
                 task_include=task_include,

v2/ansible/playbook/play.py

@@ -145,28 +145,28 @@ class Play(Base, Taggable, Become):
         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, variable_manager=self._variable_manager, loader=self._loader)
+        return load_list_of_blocks(ds=ds, play=self, variable_manager=self._variable_manager, loader=self._loader)
 
     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, variable_manager=self._variable_manager, loader=self._loader)
+        return load_list_of_blocks(ds=ds, play=self, variable_manager=self._variable_manager, loader=self._loader)
 
     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, variable_manager=self._variable_manager, loader=self._loader)
+        return load_list_of_blocks(ds=ds, play=self, variable_manager=self._variable_manager, loader=self._loader)
 
     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, use_handlers=True, variable_manager=self._variable_manager, loader=self._loader)
+        return load_list_of_blocks(ds=ds, play=self, use_handlers=True, variable_manager=self._variable_manager, loader=self._loader)
 
     def _load_roles(self, attr, ds):
         '''
@@ -196,7 +196,7 @@ class Play(Base, Taggable, Become):
 
         if len(self.roles) > 0:
             for r in self.roles:
-                block_list.extend(r.compile())
+                block_list.extend(r.compile(play=self))
 
         return block_list
 

v2/ansible/playbook/role/__init__.py

@@ -79,6 +79,7 @@ class Role(Base, Become, Conditional, Taggable):
         self._loader           = None
 
         self._metadata         = None
+        self._play             = None
         self._parents          = []
         self._dependencies     = []
         self._task_blocks      = []
@@ -163,11 +164,11 @@ class Role(Base, Become, Conditional, Taggable):
 
         task_data = self._load_role_yaml('tasks')
         if task_data:
-            self._task_blocks = load_list_of_blocks(task_data, role=self, loader=self._loader)
+            self._task_blocks = load_list_of_blocks(task_data, play=None, role=self, loader=self._loader)
 
         handler_data = self._load_role_yaml('handlers')
         if handler_data:
-            self._handler_blocks = load_list_of_blocks(handler_data, role=self, loader=self._loader)
+            self._handler_blocks = load_list_of_blocks(handler_data, play=None, role=self, loader=self._loader)
 
         # vars and default vars are regular dictionaries
         self._role_vars  = self._load_role_yaml('vars')
@@ -293,7 +294,7 @@ class Role(Base, Become, Conditional, Taggable):
 
         return self._had_task_run and self._completed
 
-    def compile(self, dep_chain=[]):
+    def compile(self, play, dep_chain=[]):
         '''
         Returns the task list for this role, which is created by first
         recursively compiling the tasks for all direct dependencies, and
@@ -311,10 +312,11 @@ class Role(Base, Become, Conditional, Taggable):
 
         deps = self.get_direct_dependencies()
         for dep in deps:
-            dep_blocks = dep.compile(dep_chain=new_dep_chain)
+            dep_blocks = dep.compile(play=play, dep_chain=new_dep_chain)
             for dep_block in dep_blocks:
                 new_dep_block = dep_block.copy()
                 new_dep_block._dep_chain = new_dep_chain
+                new_dep_block._play = play
                 block_list.append(new_dep_block)
 
         block_list.extend(self._task_blocks)

v2/ansible/playbook/taggable.py

@@ -26,7 +26,7 @@ from ansible.template import Templar
 class Taggable:
 
     untagged = set(['untagged'])
-    _tags = FieldAttribute(isa='list', default=[])
+    _tags = FieldAttribute(isa='list', default=None)
 
     def __init__(self):
         super(Taggable, self).__init__()
@@ -44,9 +44,11 @@ class Taggable:
         Override for the 'tags' getattr fetcher, used from Base.
         '''
         tags = self._attributes['tags']
+        if tags is None:
+            tags = []
         if hasattr(self, '_get_parent_attribute'):
-            tags.extend(self._get_parent_attribute('tags'))
-        return list(set(tags))
+            tags = self._get_parent_attribute('tags', extend=True)
+        return tags
 
     def evaluate_tags(self, only_tags, skip_tags, all_vars):
         ''' this checks if the current item should be executed depending on tag options '''

v2/ansible/playbook/task.py

@@ -205,16 +205,6 @@ class Task(Base, Conditional, Taggable, Become):
             del all_vars['when']
         return all_vars
 
-    # no longer used, as blocks are the lowest level of compilation now
-    #def compile(self):
-    #    '''
-    #    For tasks, this is just a dummy method returning an array
-    #    with 'self' in it, so we don't have to care about task types
-    #    further up the chain.
-    #    '''
-    #
-    #    return [self]
-
     def copy(self, exclude_block=False):
         new_me = super(Task, self).copy()
 
@@ -299,12 +289,22 @@ class Task(Base, Conditional, Taggable, Become):
         if self._task_include:
             self._task_include.set_loader(loader)
 
-    def _get_parent_attribute(self, attr):
+    def _get_parent_attribute(self, attr, extend=False):
         '''
         Generic logic to get the attribute or parent attribute for a task value.
         '''
         value = self._attributes[attr]
-        if not value and self._block:
-            value = getattr(self._block, attr)
+        if self._block and (not value or extend):
+            parent_value = getattr(self._block, attr)
+            if extend:
+                value = self._extend_value(value, parent_value)
+            else:
+                value = parent_value
+        if self._task_include and (not value or extend):
+            parent_value = getattr(self._task_include, attr)
+            if extend:
+                value = self._extend_value(value, parent_value)
+            else:
+                value = parent_value
         return value
 

v2/ansible/plugins/strategies/__init__.py

@@ -308,6 +308,7 @@ class StrategyBase:
         is_handler = isinstance(included_file._task, Handler)
         block_list = load_list_of_blocks(
             data,
+            play=included_file._task._block._play,
             parent_block=included_file._task._block,
             task_include=included_file._task,
             role=included_file._task._role,

v2/samples/test_tags.yml

@@ -1,10 +1,17 @@
 - hosts: localhost
   gather_facts: no
+  vars:
+    a: "tags"
+  tags:
+  - play
   tasks:
   - block:
       - debug: msg="this is the tagged block"
     tags:
     - block
+  - include: include.yml
+    tags:
+    - include
   - block:
       - debug: msg="tagged debug from second block"
         tags: