renames 'diffsync' fields and variables to 'adapter'

Author: Kircheneer

diffsync/__init__.py

@@ -16,15 +16,31 @@
 """
 import sys
 from inspect import isclass
-from typing import Callable, ClassVar, Dict, List, Optional, Tuple, Type, Union, Any, Set
+from typing import (
+    Callable,
+    ClassVar,
+    Dict,
+    List,
+    Optional,
+    Tuple,
+    Type,
+    Union,
+    Any,
+    Set,
+)
 import warnings
 
 from pydantic import ConfigDict, BaseModel, PrivateAttr
 import structlog  # type: ignore
 
 from diffsync.diff import Diff
 from diffsync.enum import DiffSyncModelFlags, DiffSyncFlags, DiffSyncStatus
-from diffsync.exceptions import DiffClassMismatch, ObjectAlreadyExists, ObjectStoreWrongType, ObjectNotFound
+from diffsync.exceptions import (
+    DiffClassMismatch,
+    ObjectAlreadyExists,
+    ObjectStoreWrongType,
+    ObjectNotFound,
+)
 from diffsync.helpers import DiffSyncDiffer, DiffSyncSyncer
 from diffsync.store import BaseStore
 from diffsync.store.local import LocalStore
@@ -97,15 +113,17 @@ class DiffSyncModel(BaseModel):
     Can be set as a class attribute or an instance attribute as needed.
     """
 
-    diffsync: Optional["Adapter"] = None
-    """Optional: the DiffSync instance that owns this model instance."""
+    adapter: Optional["Adapter"] = None
+    """Optional: the Adapter instance that owns this model instance."""
 
     _status: DiffSyncStatus = PrivateAttr(DiffSyncStatus.SUCCESS)
     """Status of the last attempt at creating/updating/deleting this model."""
 
     _status_message: str = PrivateAttr("")
     """Message, if any, associated with the create/update/delete status value."""
+
     model_config = ConfigDict(arbitrary_types_allowed=True)
+    """Pydantic-specific configuration to allow arbitrary types on this class."""
 
     @classmethod
     def __pydantic_init_subclass__(cls, **kwargs: Any) -> None:
@@ -145,15 +163,15 @@ def __str__(self) -> str:
         return self.get_unique_id()
 
     def dict(self, **kwargs: Any) -> Dict:
-        """Convert this DiffSyncModel to a dict, excluding the diffsync field by default as it is not serializable."""
+        """Convert this DiffSyncModel to a dict, excluding the adapter field by default as it is not serializable."""
         if "exclude" not in kwargs:
-            kwargs["exclude"] = {"diffsync"}
+            kwargs["exclude"] = {"adapter"}
         return super().model_dump(**kwargs)
 
     def json(self, **kwargs: Any) -> StrType:
-        """Convert this DiffSyncModel to a JSON string, excluding the diffsync field by default as it is not serializable."""
+        """Convert this DiffSyncModel to a JSON string, excluding the adapter field by default as it is not serializable."""
         if "exclude" not in kwargs:
-            kwargs["exclude"] = {"diffsync"}
+            kwargs["exclude"] = {"adapter"}
         if "exclude_defaults" not in kwargs:
             kwargs["exclude_defaults"] = True
         return super().model_dump_json(**kwargs)
@@ -167,12 +185,12 @@ def str(self, include_children: bool = True, indent: int = 0) -> StrType:
             child_ids = getattr(self, fieldname)
             if not child_ids:
                 output += ": []"
-            elif not self.diffsync or not include_children:
+            elif not self.adapter or not include_children:
                 output += f": {child_ids}"
             else:
                 for child_id in child_ids:
                     try:
-                        child = self.diffsync.get(modelname, child_id)
+                        child = self.adapter.get(modelname, child_id)
                         output += "\n" + child.str(include_children=include_children, indent=indent + 4)
                     except ObjectNotFound:
                         output += f"\n{margin}    {child_id} (ERROR: details unavailable)"
@@ -184,32 +202,32 @@ def set_status(self, status: DiffSyncStatus, message: StrType = "") -> None:
         self._status_message = message
 
     @classmethod
-    def create_base(cls, diffsync: "Adapter", ids: Dict, attrs: Dict) -> Optional[Self]:
+    def create_base(cls, adapter: "Adapter", ids: Dict, attrs: Dict) -> Optional[Self]:
         """Instantiate this class, along with any platform-specific data creation.
 
         This method is not meant to be subclassed, users should redefine create() instead.
 
         Args:
-            diffsync: The master data store for other DiffSyncModel instances that we might need to reference
+            adapter: The master data store for other DiffSyncModel instances that we might need to reference
             ids: Dictionary of unique-identifiers needed to create the new object
             attrs: Dictionary of additional attributes to set on the new object
 
         Returns:
             DiffSyncModel: instance of this class.
         """
-        model = cls(**ids, diffsync=diffsync, **attrs)
+        model = cls(**ids, adapter=adapter, **attrs)
         model.set_status(DiffSyncStatus.SUCCESS, "Created successfully")
         return model
 
     @classmethod
-    def create(cls, diffsync: "Adapter", ids: Dict, attrs: Dict) -> Optional[Self]:
+    def create(cls, adapter: "Adapter", ids: Dict, attrs: Dict) -> Optional[Self]:
         """Instantiate this class, along with any platform-specific data creation.
 
         Subclasses must call `super().create()` or `self.create_base()`; they may wish to then override the default status information
         by calling `set_status()` to provide more context (such as details of any interactions with underlying systems).
 
         Args:
-            diffsync: The master data store for other DiffSyncModel instances that we might need to reference
+            adapter: The master data store for other DiffSyncModel instances that we might need to reference
             ids: Dictionary of unique-identifiers needed to create the new object
             attrs: Dictionary of additional attributes to set on the new object
 
@@ -220,7 +238,7 @@ def create(cls, diffsync: "Adapter", ids: Dict, attrs: Dict) -> Optional[Self]:
         Raises:
             ObjectNotCreated: if an error occurred.
         """
-        return cls.create_base(diffsync=diffsync, ids=ids, attrs=attrs)
+        return cls.create_base(adapter=adapter, ids=ids, attrs=attrs)
 
     def update_base(self, attrs: Dict) -> Optional[Self]:
         """Base Update method to update the attributes of this instance, along with any platform-specific data updates.
@@ -376,7 +394,10 @@ def add_child(self, child: "DiffSyncModel") -> None:
         attr_name = self._children[child_type]
         childs = getattr(self, attr_name)
         if child.get_unique_id() in childs:
-            raise ObjectAlreadyExists(f"Already storing a {child_type} with unique_id {child.get_unique_id()}", child)
+            raise ObjectAlreadyExists(
+                f"Already storing a {child_type} with unique_id {child.get_unique_id()}",
+                child,
+            )
         childs.append(child.get_unique_id())
 
     def remove_child(self, child: "DiffSyncModel") -> None:
@@ -417,7 +438,9 @@ class Adapter:  # pylint: disable=too-many-public-methods
     """List of top-level modelnames to begin from when diffing or synchronizing."""
 
     def __init__(
-        self, name: Optional[str] = None, internal_storage_engine: Union[Type[BaseStore], BaseStore] = LocalStore
+        self,
+        name: Optional[str] = None,
+        internal_storage_engine: Union[Type[BaseStore], BaseStore] = LocalStore,
     ) -> None:
         """Generic initialization function.
 
@@ -426,9 +449,9 @@ def __init__(
 
         if isinstance(internal_storage_engine, BaseStore):
             self.store = internal_storage_engine
-            self.store.diffsync = self
+            self.store.adapter = self
         else:
-            self.store = internal_storage_engine(diffsync=self)
+            self.store = internal_storage_engine(adapter=self)
 
         # If the type is not defined, use the name of the class as the default value
         if self.type is None:
@@ -565,7 +588,13 @@ def sync_from(  # pylint: disable=too-many-arguments
         # Generate the diff if an existing diff was not provided
         if not diff:
             diff = self.diff_from(source, diff_class=diff_class, flags=flags, callback=callback)
-        syncer = DiffSyncSyncer(diff=diff, src_diffsync=source, dst_diffsync=self, flags=flags, callback=callback)
+        syncer = DiffSyncSyncer(
+            diff=diff,
+            src_diffsync=source,
+            dst_diffsync=self,
+            flags=flags,
+            callback=callback,
+        )
         result = syncer.perform_sync()
         if result:
             self.sync_complete(source, diff, flags, syncer.base_logger)
@@ -639,7 +668,11 @@ def diff_from(
                 calculation of the diff proceeds.
         """
         differ = DiffSyncDiffer(
-            src_diffsync=source, dst_diffsync=self, flags=flags, diff_class=diff_class, callback=callback
+            src_diffsync=source,
+            dst_diffsync=self,
+            flags=flags,
+            diff_class=diff_class,
+            callback=callback,
         )
         return differ.calculate_diffs()
 
@@ -674,7 +707,9 @@ def get_all_model_names(self) -> Set[StrType]:
         return self.store.get_all_model_names()
 
     def get(
-        self, obj: Union[StrType, DiffSyncModel, Type[DiffSyncModel]], identifier: Union[StrType, Dict]
+        self,
+        obj: Union[StrType, DiffSyncModel, Type[DiffSyncModel]],
+        identifier: Union[StrType, Dict],
     ) -> DiffSyncModel:
         """Get one object from the data store based on its unique id.
 
@@ -689,7 +724,9 @@ def get(
         return self.store.get(model=obj, identifier=identifier)
 
     def get_or_none(
-        self, obj: Union[StrType, DiffSyncModel, Type[DiffSyncModel]], identifier: Union[StrType, Dict]
+        self,
+        obj: Union[StrType, DiffSyncModel, Type[DiffSyncModel]],
+        identifier: Union[StrType, Dict],
     ) -> Optional[DiffSyncModel]:
         """Get one object from the data store based on its unique id or get a None
 
@@ -720,7 +757,9 @@ def get_all(self, obj: Union[StrType, DiffSyncModel, Type[DiffSyncModel]]) -> Li
         return self.store.get_all(model=obj)
 
     def get_by_uids(
-        self, uids: List[StrType], obj: Union[StrType, DiffSyncModel, Type[DiffSyncModel]]
+        self,
+        uids: List[StrType],
+        obj: Union[StrType, DiffSyncModel, Type[DiffSyncModel]],
     ) -> List[DiffSyncModel]:
         """Get multiple objects from the store by their unique IDs/Keys and type.
 

diffsync/helpers.py

@@ -425,7 +425,7 @@ def sync_model(  # pylint: disable=too-many-branches, unused-argument
             if self.action == DiffSyncActions.CREATE:
                 if dst_model is not None:
                     raise ObjectNotCreated(f"Failed to create {self.model_class.get_type()} {ids} - it already exists!")
-                dst_model = self.model_class.create(diffsync=self.dst_diffsync, ids=ids, attrs=attrs)
+                dst_model = self.model_class.create(adapter=self.dst_diffsync, ids=ids, attrs=attrs)
             elif self.action == DiffSyncActions.UPDATE:
                 if dst_model is None:
                     raise ObjectNotUpdated(f"Failed to update {self.model_class.get_type()} {ids} - not found!")

diffsync/store/__init__.py

@@ -15,12 +15,12 @@ class BaseStore:
     def __init__(
         self,  # pylint: disable=unused-argument
         *args: Any,  # pylint: disable=unused-argument
-        diffsync: Optional["Adapter"] = None,
+        adapter: Optional["Adapter"] = None,
         name: str = "",
         **kwargs: Any,  # pylint: disable=unused-argument
     ) -> None:
         """Init method for BaseStore."""
-        self.diffsync = diffsync
+        self.adapter = adapter
         self.name = name or self.__class__.__name__
         self._log = structlog.get_logger().new(store=self)
 
@@ -95,8 +95,8 @@ def remove(self, *, obj: "DiffSyncModel", remove_children: bool = False) -> None
 
         self.remove_item(modelname, uid)
 
-        if obj.diffsync:
-            obj.diffsync = None
+        if obj.adapter:
+            obj.adapter = None
 
         if remove_children:
             for child_type, child_fieldname in obj.get_children_mapping().items():
@@ -243,9 +243,9 @@ def _get_object_class_and_model(
         """Get object class and model name for a model."""
         if isinstance(model, str):
             modelname = model
-            if not hasattr(self.diffsync, model):
+            if not hasattr(self.adapter, model):
                 return None, modelname
-            object_class = getattr(self.diffsync, model)
+            object_class = getattr(self.adapter, model)
         else:
             object_class = model
             modelname = model.get_type()

diffsync/store/local.py

@@ -108,8 +108,8 @@ def add(self, *, obj: "DiffSyncModel") -> None:
             # Return so we don't have to change anything on the existing object and underlying data
             return
 
-        if not obj.diffsync:
-            obj.diffsync = self.diffsync
+        if not obj.adapter:
+            obj.adapter = self.adapter
 
         self._data[modelname][uid] = obj
 

diffsync/store/redis.py

@@ -65,7 +65,7 @@ def _get_object_from_redis_key(self, key: str) -> "DiffSyncModel":
         pickled_object = self._store.get(key)
         if pickled_object:
             obj_result = loads(pickled_object)  # nosec
-            obj_result.diffsync = self.diffsync
+            obj_result.adapter = self.adapter
             return obj_result
         raise ObjectNotFound(f"{key} not present in Cache")
 
@@ -178,7 +178,7 @@ def add(self, *, obj: "DiffSyncModel") -> None:
 
         # Remove the diffsync object before sending to Redis
         obj_copy = copy.copy(obj)
-        obj_copy.diffsync = None
+        obj_copy.adapter = None
 
         self._store.set(object_key, dumps(obj_copy))
 
@@ -193,7 +193,7 @@ def update(self, *, obj: "DiffSyncModel") -> None:
 
         object_key = self._get_key_for_object(modelname, uid)
         obj_copy = copy.copy(obj)
-        obj_copy.diffsync = None
+        obj_copy.adapter = None
 
         self._store.set(object_key, dumps(obj_copy))
 

docs/source/getting_started/01-getting-started.md

@@ -181,10 +181,10 @@ class Device(DiffSyncModel):
     [...]
 
     @classmethod
-    def create(cls, diffsync, ids, attrs):
+    def create(cls, adapter, ids, attrs):
         ## TODO add your own logic here to create the device on the remote system
         # Call the super().create() method to create the in-memory DiffSyncModel instance
-        return super().create(ids=ids, diffsync=diffsync, attrs=attrs)
+        return super().create(ids=ids, adapter=adapter, attrs=attrs)
 
     def update(self, attrs):
         ## TODO add your own logic here to update the device on the remote system

docs/source/upgrading/01-upgrading-to-2.0.md

@@ -6,6 +6,8 @@ With diffsync 2.0, there a couple of breaking changes. What they are and how to
 
 The main diffsync class `diffsync.Diffsync` has been renamed to `diffsync.Adapter` as we have found that this is the verbiage that is most often used by users and explains the intent of the class clearer. The old name will still be around until 2.1, but is considered deprecated at this point.
 
+As a consequence, a lot of fields have been renamed all across diffsync. To the end user, this will most prominently appear in the signature of the `create` method, where you will have to rename the `diffsync` parameter to `adapter`.
+
 ## Upgrade to Pydantic's major version 2
 
 A [migration guide](https://docs.pydantic.dev/latest/migration/) is available in the Pydantic documentation. Here are the key things that may apply to your usage of diffsync:

examples/03-remote-system/nautobot_models.py

@@ -30,11 +30,11 @@ class NautobotCountry(Country):
     """Store the nautobot uuid in the object to allow update and delete of existing object."""
 
     @classmethod
-    def create(cls, diffsync: Adapter, ids: dict, attrs: dict):
+    def create(cls, adapter: Adapter, ids: dict, attrs: dict):
         """Create a country object in Nautobot.
 
         Args:
-            diffsync: The master data store for other DiffSyncModel instances that we might need to reference
+            adapter: The master data store for other DiffSyncModel instances that we might need to reference
             ids: Dictionary of unique-identifiers needed to create the new object
             attrs: Dictionary of additional attributes to set on the new object
 
@@ -43,11 +43,11 @@ def create(cls, diffsync: Adapter, ids: dict, attrs: dict):
         """
         # Retrieve the parent region in internal cache to access its UUID
         #  because the UUID is required to associate the object to its parent region in Nautobot
-        region = diffsync.get(diffsync.region, attrs.get("region"))
+        region = adapter.get(adapter.region, attrs.get("region"))
 
         # Create the new country in Nautobot and attach it to its parent
         try:
-            country = diffsync.nautobot.dcim.regions.create(
+            country = adapter.nautobot.dcim.regions.create(
                 slug=ids.get("slug"),
                 name=attrs.get("name"),
                 custom_fields=dict(population=attrs.get("population")),
@@ -61,7 +61,7 @@ def create(cls, diffsync: Adapter, ids: dict, attrs: dict):
 
         # Add the newly created remote_id and create the internal object for this resource.
         attrs["remote_id"] = country.id
-        item = super().create(ids=ids, diffsync=diffsync, attrs=attrs)
+        item = super().create(ids=ids, adapter=adapter, attrs=attrs)
         return item
 
     def update(self, attrs: dict):
@@ -78,7 +78,7 @@ def update(self, attrs: dict):
             ObjectNotUpdated: if an error occurred.
         """
         # Retrive the pynautobot object from Nautobot since we only have the UUID internally
-        remote = self.diffsync.nautobot.dcim.regions.get(self.remote_id)
+        remote = self.adapter.nautobot.dcim.regions.get(self.remote_id)
 
         # Convert the internal attrs to Nautobot format
         if "population" in attrs:
@@ -98,7 +98,7 @@ def delete(self):
             NautobotCountry: DiffSync object
         """
         # Retrieve the pynautobot object and delete the object in Nautobot
-        remote = self.diffsync.nautobot.dcim.regions.get(self.remote_id)
+        remote = self.adapter.nautobot.dcim.regions.get(self.remote_id)
         remote.delete()
 
         super().delete()