chore!: remove PluginModel class

This class was vestigial, being a child of PluginPropertiesModel, while
all plugins' properties classes are children of PluginProperties,
which is itself a child of PluginPropertiesModel.

This is a breaking change because external plugins for applications
(e.g. snapcraft) inherit from both PluginProperties and PluginModel.

craft_parts/plugins/__init__.py

@@ -16,7 +16,7 @@
 
 """Craft Parts plugins subsystem."""
 
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .plugins import (
     PluginProperties,
     extract_part_properties,
@@ -32,7 +32,6 @@
 __all__ = [
     "Plugin",
     "PluginEnvironmentValidator",
-    "PluginModel",
     "PluginProperties",
     "extract_part_properties",
     "extract_plugin_properties",

craft_parts/plugins/ant_plugin.py

@@ -28,13 +28,13 @@
 from craft_parts import errors
 
 from . import validator
-from .base import JavaPlugin, PluginModel, extract_plugin_properties
+from .base import JavaPlugin, extract_plugin_properties
 from .properties import PluginProperties
 
 logger = logging.getLogger(__name__)
 
 
-class AntPluginProperties(PluginProperties, PluginModel):
+class AntPluginProperties(PluginProperties):
     """The part properties used by the Ant plugin."""
 
     ant_build_targets: list[str] = []

craft_parts/plugins/autotools_plugin.py

@@ -20,11 +20,11 @@
 
 from overrides import override
 
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 
-class AutotoolsPluginProperties(PluginProperties, PluginModel):
+class AutotoolsPluginProperties(PluginProperties):
     """The part properties used by the autotools plugin."""
 
     autotools_configure_parameters: list[str] = []

craft_parts/plugins/base.py

@@ -22,7 +22,7 @@
 
 from craft_parts.actions import ActionProperties
 
-from .properties import PluginProperties, PluginPropertiesModel
+from .properties import PluginProperties
 from .validator import PluginEnvironmentValidator
 
 if TYPE_CHECKING:
@@ -122,15 +122,6 @@ def _get_java_post_build_commands(self) -> list[str]:
         return link_java + link_jars
 
 
-class PluginModel(PluginPropertiesModel):
-    """Model for plugins using pydantic validation.
-
-    Plugins with configuration properties can use pydantic validation to unmarshal
-    data from part specs. In this case, extract plugin-specific properties using
-    the :func:`extract_plugin_properties` helper.
-    """
-
-
 def extract_plugin_properties(
     data: dict[str, Any], *, plugin_name: str, required: list[str] | None = None
 ) -> dict[str, Any]:

craft_parts/plugins/cmake_plugin.py

@@ -20,11 +20,11 @@
 
 from overrides import override
 
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 
-class CMakePluginProperties(PluginProperties, PluginModel):
+class CMakePluginProperties(PluginProperties):
     """The part properties used by the cmake plugin."""
 
     cmake_parameters: list[str] = []

craft_parts/plugins/dotnet_plugin.py

@@ -22,13 +22,13 @@
 from overrides import override
 
 from . import validator
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 logger = logging.getLogger(__name__)
 
 
-class DotnetPluginProperties(PluginProperties, PluginModel):
+class DotnetPluginProperties(PluginProperties):
     """The part properties used by the Dotnet plugin."""
 
     dotnet_build_configuration: str = "Release"

craft_parts/plugins/go_plugin.py

@@ -24,13 +24,13 @@
 from craft_parts import errors
 
 from . import validator
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 logger = logging.getLogger(__name__)
 
 
-class GoPluginProperties(PluginProperties, PluginModel):
+class GoPluginProperties(PluginProperties):
     """The part properties used by the Go plugin."""
 
     go_buildtags: list[str] = []

craft_parts/plugins/make_plugin.py

@@ -20,11 +20,11 @@
 
 from overrides import override
 
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 
-class MakePluginProperties(PluginProperties, PluginModel):
+class MakePluginProperties(PluginProperties):
     """The part properties used by the make plugin."""
 
     make_parameters: list[str] = []

craft_parts/plugins/maven_plugin.py

@@ -28,11 +28,11 @@
 from craft_parts import errors
 
 from . import validator
-from .base import JavaPlugin, PluginModel, extract_plugin_properties
+from .base import JavaPlugin, extract_plugin_properties
 from .properties import PluginProperties
 
 
-class MavenPluginProperties(PluginProperties, PluginModel):
+class MavenPluginProperties(PluginProperties):
     """The part properties used by the maven plugin."""
 
     maven_parameters: list[str] = []

craft_parts/plugins/meson_plugin.py

@@ -24,13 +24,13 @@
 from overrides import override
 
 from . import validator
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 logger = logging.getLogger(__name__)
 
 
-class MesonPluginProperties(PluginProperties, PluginModel):
+class MesonPluginProperties(PluginProperties):
     """The part properties used by the Meson plugin."""
 
     meson_parameters: list[str] = []

craft_parts/plugins/npm_plugin.py

@@ -31,7 +31,7 @@
 from craft_parts.errors import InvalidArchitecture
 
 from . import validator
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 logger = logging.getLogger(__name__)
@@ -47,7 +47,7 @@
 _NODE_ARCH_FROM_PLATFORM = {"x86_64": {"32bit": "x86", "64bit": "x64"}}
 
 
-class NpmPluginProperties(PluginProperties, PluginModel):
+class NpmPluginProperties(PluginProperties):
     """The part properties used by the npm plugin."""
 
     # part properties required by the plugin

craft_parts/plugins/python_plugin.py

@@ -22,11 +22,11 @@
 
 from overrides import override
 
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 
-class PythonPluginProperties(PluginProperties, PluginModel):
+class PythonPluginProperties(PluginProperties):
     """The part properties used by the python plugin."""
 
     python_requirements: list[str] = []

craft_parts/plugins/qmake_plugin.py

@@ -23,11 +23,11 @@
 from overrides import override
 from typing_extensions import Self
 
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 
-class QmakePluginProperties(PluginProperties, PluginModel):
+class QmakePluginProperties(PluginProperties):
     """The part properties used by the qmake plugin."""
 
     qmake_parameters: list[str] = []

craft_parts/plugins/rust_plugin.py

@@ -29,7 +29,7 @@
 from pydantic import validator as pydantic_validator
 
 from . import validator
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 logger = logging.getLogger(__name__)
@@ -46,7 +46,7 @@ def _validate_list_is_unique(value: list) -> list:
 UniqueStrList = Annotated[list[str], AfterValidator(_validate_list_is_unique)]
 
 
-class RustPluginProperties(PluginProperties, PluginModel):
+class RustPluginProperties(PluginProperties):
     """The part properties used by the Rust plugin."""
 
     # part properties required by the plugin

craft_parts/plugins/scons_plugin.py

@@ -23,11 +23,11 @@
 from craft_parts import errors
 
 from . import validator
-from .base import Plugin, PluginModel, extract_plugin_properties
+from .base import Plugin, extract_plugin_properties
 from .properties import PluginProperties
 
 
-class SConsPluginProperties(PluginProperties, PluginModel):
+class SConsPluginProperties(PluginProperties):
     """The part properties used by the SCons plugin."""
 
     scons_parameters: list[str] = []

tests/integration/lifecycle/test_plugin_changesets.py

@@ -31,7 +31,7 @@ def teardown_module():
     plugins.unregister_all()
 
 
-class ExamplePluginProperties(plugins.PluginProperties, plugins.PluginModel):
+class ExamplePluginProperties(plugins.PluginProperties):
     """The application-defined plugin properties."""
 
     @classmethod

tests/integration/plugins/test_application_plugin.py

@@ -24,7 +24,7 @@
 from craft_parts import Action, ActionType, Step, errors, plugins
 
 
-class AppPluginProperties(plugins.PluginProperties, plugins.PluginModel):
+class AppPluginProperties(plugins.PluginProperties):
     """The application-defined plugin properties."""
 
     app_stuff: list[str]

tests/integration/plugins/test_validate_environment.py

@@ -52,7 +52,7 @@ def mytool_error(new_dir):
     return tool
 
 
-class AppPluginProperties(plugins.PluginProperties, plugins.PluginModel):
+class AppPluginProperties(plugins.PluginProperties):
     """The application-defined plugin properties."""
 
     @classmethod