Add the ability to support pydantic 1 and 2 (#281)

* Add the ability to support pydantic 1 and 2

* make mypy happy

* fix black

* pydocstyle

* fix lint

* Add deprecation comments

---------

Co-authored-by: Christian Adell <chadell@gmail.com>

.github/workflows/ci.yml

@@ -114,6 +114,10 @@ jobs:
       fail-fast: true
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
+        pydantic: ["2.x"]
+        include:
+          - python-version: "3.11"
+            pydantic: "1.x"
     runs-on: "ubuntu-20.04"
     env:
       INVOKE_LOCAL: "True"
@@ -128,6 +132,9 @@ jobs:
           poetry-install-options: "--with dev"
       - name: "Run poetry Install"
         run: "poetry install"
+      - name: "Run poetry Install"
+        run: "pip install pydantic==1.10.13"
+        if: matrix.pydantic == '1.x'
       - name: "Run Tests"
         run: "poetry run invoke pytest --local"
     needs:

circuit_maintenance_parser/output.py

@@ -8,7 +8,14 @@
 
 from typing import List
 
-from pydantic import field_validator, BaseModel, StrictStr, StrictInt, PrivateAttr
+try:
+    from pydantic import field_validator
+except ImportError:
+    # TODO: This exception handling is required for Pydantic 1.x compatibility. To be removed when the dependency is deprecated.
+    from pydantic import validator as field_validator  # type: ignore
+
+
+from pydantic import BaseModel, StrictStr, StrictInt, PrivateAttr
 
 
 class Impact(str, Enum):

circuit_maintenance_parser/parser.py

@@ -42,7 +42,11 @@ class Parser(BaseModel):
     @classmethod
     def get_data_types(cls) -> List[str]:
         """Return the expected data type."""
-        return cls._data_types.get_default()
+        try:
+            return cls._data_types.get_default()
+        except AttributeError:
+            # TODO: This exception handling is required for Pydantic 1.x compatibility. To be removed when the dependency is deprecated.
+            return cls._data_types
 
     @classmethod
     def get_name(cls) -> str:

circuit_maintenance_parser/provider.py

@@ -151,22 +151,38 @@ def get_maintenances(self, data: NotificationData) -> Iterable[Maintenance]:
     @classmethod
     def get_default_organizer(cls) -> str:
         """Expose default_organizer as class attribute."""
-        return cls._default_organizer.get_default()  # type: ignore
+        try:
+            return cls._default_organizer.get_default()  # type: ignore
+        except AttributeError:
+            # TODO: This exception handling is required for Pydantic 1.x compatibility. To be removed when the dependency is deprecated.
+            return cls._default_organizer
 
     @classmethod
     def get_default_processors(cls) -> List[GenericProcessor]:
         """Expose default_processors as class attribute."""
-        return cls._processors.get_default()  # type: ignore
+        try:
+            return cls._processors.get_default()  # type: ignore
+        except AttributeError:
+            # TODO: This exception handling is required for Pydantic 1.x compatibility. To be removed when the dependency is deprecated.
+            return cls._processors
 
     @classmethod
     def get_default_include_filters(cls) -> Dict[str, List[str]]:
         """Expose include_filter as class attribute."""
-        return cls._include_filter.get_default()  # type: ignore
+        try:
+            return cls._include_filter.get_default()  # type: ignore
+        except AttributeError:
+            # TODO: This exception handling is required for Pydantic 1.x compatibility. To be removed when the dependency is deprecated.
+            return cls._include_filter
 
     @classmethod
     def get_default_exclude_filters(cls) -> Dict[str, List[str]]:
         """Expose exclude_filter as class attribute."""
-        return cls._exclude_filter.get_default()  # type: ignore
+        try:
+            return cls._exclude_filter.get_default()  # type: ignore
+        except AttributeError:
+            # TODO: This exception handling is required for Pydantic 1.x compatibility. To be removed when the dependency is deprecated.
+            return cls._exclude_filter
 
     @classmethod
     def get_extended_data(cls):