Switching to Ruff for formatting and linting

CHANGELOG.md

@@ -31,6 +31,7 @@
 - Prepare for python typing deprecations ([837](https://github.com/databricks/dbt-databricks/pull/837))
 - Fix behavior flag use in init of DatabricksAdapter (thanks @VersusFacit!) ([836](https://github.com/databricks/dbt-databricks/pull/836))
 - Restrict pydantic to V1 per dbt Labs' request ([843](https://github.com/databricks/dbt-databricks/pull/843))
+- Switching to Ruff for formatting and linting ([847](https://github.com/databricks/dbt-databricks/pull/847))
 
 ## dbt-databricks 1.8.7 (October 10, 2024)
 

dbt/adapters/databricks/api_client.py

@@ -142,7 +142,6 @@ def get_folder(self, _: str, schema: str) -> str:
 
 
 class CurrUserApi(DatabricksApi):
-
     def __init__(self, session: Session, host: str):
         super().__init__(session, host, "/api/2.0/preview/scim/v2")
         self._user = ""
@@ -401,7 +400,6 @@ def get(self, job_id: str) -> dict[str, Any]:
 
 
 class WorkflowJobApi(DatabricksApi):
-
     def __init__(self, session: Session, host: str):
         super().__init__(session, host, "/api/2.1/jobs")
 

dbt/adapters/databricks/connections.py

@@ -868,7 +868,6 @@ def cleanup_all(self) -> None:
     def _update_compute_connection(
         self, conn: DatabricksDBTConnection, new_name: str
     ) -> DatabricksDBTConnection:
-
         if conn.name == new_name and conn.state == ConnectionState.OPEN:
             # Found a connection and nothing to do, so just return it
             return conn

dbt/adapters/databricks/impl.py

@@ -68,7 +68,6 @@
 from dbt.adapters.databricks.relation_configs.tblproperties import TblPropertiesConfig
 from dbt.adapters.databricks.utils import get_first_row, handle_missing_objects
 from dbt.adapters.databricks.utils import redact_credentials
-from dbt.adapters.databricks.utils import undefined_proof
 from dbt.adapters.relation_configs import RelationResults
 from dbt.adapters.spark.impl import DESCRIBE_TABLE_EXTENDED_MACRO_NAME
 from dbt.adapters.spark.impl import GET_COLUMNS_IN_RELATION_RAW_MACRO_NAME
@@ -165,7 +164,6 @@ def get_identifier_list_string(table_names: set[str]) -> str:
     return _identifier
 
 
-@undefined_proof
 class DatabricksAdapter(SparkAdapter):
     INFORMATION_COMMENT_REGEX = re.compile(r"Comment: (.*)\n[A-Z][A-Za-z ]+:", re.DOTALL)
 
@@ -364,7 +362,8 @@ def _get_hive_relations(
         new_rows: list[tuple[str, Optional[str]]]
         if all([relation.database, relation.schema]):
             tables = self.connections.list_tables(
-                database=relation.database, schema=relation.schema  # type: ignore[arg-type]
+                database=relation.database,  # type: ignore[arg-type]
+                schema=relation.schema,  # type: ignore[arg-type]
             )
 
             new_rows = []

dbt/adapters/databricks/python_models/python_submissions.py

@@ -211,7 +211,6 @@ def __init__(
         self.additional_job_settings = parsed_model.config.python_job_config.dict()
 
     def compile(self, path: str) -> PythonJobDetails:
-
         job_spec: dict[str, Any] = {
             "task_key": "inner_notebook",
             "notebook_task": {

dbt/adapters/databricks/utils.py

@@ -1,6 +1,4 @@
 from collections.abc import Callable
-import functools
-import inspect
 import re
 from typing import Any
 from typing import TYPE_CHECKING
@@ -45,42 +43,6 @@ def remove_undefined(v: Any) -> Any:
     return None if isinstance(v, Undefined) else v
 
 
-def undefined_proof(cls: type[A]) -> type[A]:
-    for name in cls._available_:
-        func = getattr(cls, name)
-        if not callable(func):
-            continue
-        try:
-            static_attr = inspect.getattr_static(cls, name)
-            isstatic = isinstance(static_attr, staticmethod)
-            isclass = isinstance(static_attr, classmethod)
-        except AttributeError:
-            isstatic = False
-            isclass = False
-        wrapped_function = _wrap_function(func.__func__ if isclass else func)
-        setattr(
-            cls,
-            name,
-            (
-                staticmethod(wrapped_function)
-                if isstatic
-                else classmethod(wrapped_function) if isclass else wrapped_function
-            ),
-        )
-
-    return cls
-
-
-def _wrap_function(func: Callable) -> Callable:
-    @functools.wraps(func)
-    def wrapper(*args: Any, **kwargs: Any) -> Any:
-        new_args = [remove_undefined(arg) for arg in args]
-        new_kwargs = {key: remove_undefined(value) for key, value in kwargs.items()}
-        return func(*new_args, **new_kwargs)
-
-    return wrapper
-
-
 def remove_ansi(line: str) -> str:
     ansi_escape = re.compile(r"(?:\x1B[@-_]|[\x80-\x9F])[0-?]*[ -/]*[@-~]")
     return ansi_escape.sub("", line)

dev-requirements.txt

@@ -1,6 +1,5 @@
-black~=24.3.0
-flake8
-flaky
+ruff
+
 freezegun~=1.5.0
 ipdb
 mock>=1.3.0
@@ -13,6 +12,5 @@ pytz
 tox>=3.2.0
 types-requests
 types-mock
-pre-commit
 
 dbt-tests-adapter>=1.10.2, <2.0

ruff.toml

@@ -0,0 +1,6 @@
+line-length = 100
+target-version = 'py39'
+
+[lint]
+select = ["E", "W", "F"]
+ignore = ["E203"]

tests/functional/adapter/columns/test_get_columns.py

@@ -20,7 +20,6 @@ def setup(self, project):
 
     @pytest.fixture(scope="class")
     def expected_columns(self):
-
         return [
             DatabricksColumn(
                 column="struct_col",

tests/unit/macros/relations/test_table_macros.py

@@ -29,9 +29,8 @@ def context(self, template) -> dict:
 
     def render_create_table_as(self, template_bundle, temporary=False, sql="select 1"):
         external_path = f"/mnt/root/{template_bundle.relation.identifier}"
-        template_bundle.template.globals["adapter"].compute_external_path.return_value = (
-            external_path
-        )
+        adapter_mock = template_bundle.template.globals["adapter"]
+        adapter_mock.compute_external_path.return_value = external_path
         return self.run_macro(
             template_bundle.template,
             "databricks__create_table_as",

tox.ini

@@ -5,8 +5,8 @@ envlist = linter, unit
 [testenv:linter]
 basepython = python3
 commands =
-  {envpython} -m black --config black.ini --check dbt tests
-  {envpython} -m flake8 --select=E,W,F --ignore=E203,W503 --max-line-length=100 dbt tests
+  {envpython} -m ruff format --check
+  {envpython} -m ruff check
   {envpython} -m mypy --config-file mypy.ini --explicit-package-bases dbt tests
 passenv =
   DBT_*
@@ -15,9 +15,9 @@ deps =
   -r{toxinidir}/dev-requirements.txt
   -r{toxinidir}/requirements.txt
 
-[testenv:black]
+[testenv:format]
 basepython = python3
-commands = {envpython} -m black --config black.ini .
+commands = {envpython} -m ruff format
 passenv =
   DBT_*
   PYTEST_ADDOPTS