Enable annotations ruff rule

esmvalcore/_main.py

@@ -35,11 +35,15 @@
 import sys
 from importlib.metadata import entry_points
 from pathlib import Path
+from typing import TYPE_CHECKING
 
 import fire
 
 from esmvalcore.config._config import warn_if_old_extra_facets_exist
 
+if TYPE_CHECKING:
+    from esmvalcore.config import Session
+
 # set up logging
 logger = logging.getLogger(__name__)
 
@@ -80,7 +84,7 @@ def parse_resume(resume, recipe):
     return resume
 
 
-def process_recipe(recipe_file: Path, session):
+def process_recipe(recipe_file: Path, session: Session) -> None:
     """Process recipe."""
     import datetime
     import shutil
@@ -318,7 +322,7 @@ def _copy_config_file(
         in_file: Path,
         out_file: Path,
         overwrite: bool,
-    ):
+    ) -> None:
         """Copy a configuration file."""
         import shutil
 
@@ -634,7 +638,7 @@ def _create_session_dir(session):
     def _run(
         self,
         recipe: Path,
-        session,
+        session: Session,
         cli_config_dir: Path | None,
     ) -> None:
         """Run `recipe` using `session`."""
@@ -697,7 +701,7 @@ def _clean_preproc(session):
             shutil.rmtree(session.preproc_dir)
 
     @staticmethod
-    def _get_recipe(recipe) -> Path:
+    def _get_recipe(recipe: str) -> Path:
         from esmvalcore.config._diagnostics import DIAGNOSTICS
 
         if not os.path.isfile(recipe):

esmvalcore/_provenance.py

@@ -139,7 +139,7 @@ def __init__(
         attributes: dict[str, Any] | None = None,
         ancestors: Iterable[TrackedFile] | None = None,
         prov_filename: str | None = None,
-    ):
+    ) -> None:
         """Create an instance of a file with provenance tracking.
 
         Arguments
@@ -182,7 +182,7 @@ def attributes(self) -> dict[str, Any]:
         return self._attributes
 
     @attributes.setter
-    def attributes(self, value: dict[str, Any] | None):
+    def attributes(self, value: dict[str, Any] | None) -> None:
         """Set attributes describing the file."""
         self._attributes = value
 
@@ -194,11 +194,11 @@ def __repr__(self) -> str:
         """Return representation string (e.g., used by ``pformat``)."""
         return f"{self.__class__.__name__}: {self.filename}"
 
-    def __eq__(self, other) -> bool:
+    def __eq__(self, other: object) -> bool:
         """Check if `other` equals `self`."""
         return hasattr(other, "filename") and self.filename == other.filename
 
-    def __lt__(self, other) -> bool:
+    def __lt__(self, other: object) -> bool:
         """Check if `other` should be sorted before `self`."""
         return hasattr(other, "filename") and self.filename < other.filename
 

esmvalcore/_recipe/check.py

@@ -364,7 +364,7 @@ def _verify_span_value(span: str) -> None:
         raise RecipeError(msg)
 
 
-def _verify_groupby(groupby: Any) -> None:
+def _verify_groupby(groupby: list[str]) -> None:
     """Raise error if groupby arguments cannot be verified."""
     if not isinstance(groupby, list):
         msg = (
@@ -375,7 +375,7 @@ def _verify_groupby(groupby: Any) -> None:
         raise RecipeError(msg)
 
 
-def _verify_keep_input_datasets(keep_input_datasets: Any) -> None:
+def _verify_keep_input_datasets(keep_input_datasets: bool) -> None:
     if not isinstance(keep_input_datasets, bool):
         msg = (
             f"Invalid value encountered for `keep_input_datasets`."
@@ -385,7 +385,7 @@ def _verify_keep_input_datasets(keep_input_datasets: Any) -> None:
         raise RecipeError(msg)
 
 
-def _verify_ignore_scalar_coords(ignore_scalar_coords: Any) -> None:
+def _verify_ignore_scalar_coords(ignore_scalar_coords: bool) -> None:
     if not isinstance(ignore_scalar_coords, bool):
         msg = (
             f"Invalid value encountered for `ignore_scalar_coords`."

esmvalcore/_recipe/from_datasets.py

@@ -5,7 +5,7 @@
 import itertools
 import logging
 import re
-from collections.abc import Iterable, Mapping, Sequence
+from collections.abc import Iterable, Mapping
 from functools import partial
 from typing import TYPE_CHECKING, Any
 
@@ -16,6 +16,7 @@
 from ._io import _load_recipe
 
 if TYPE_CHECKING:
+    from collections.abc import Sequence
     from pathlib import Path
 
     from esmvalcore.dataset import Dataset
@@ -114,7 +115,7 @@ def _to_frozen(item):
     return item
 
 
-def _move_one_level_up(base: dict, level: str, target: str):
+def _move_one_level_up(base: dict, level: str, target: str) -> None:
     """Move datasets one level up in the recipe."""
     groups = base[level]
     if not groups:

esmvalcore/_recipe/recipe.py

@@ -16,7 +16,7 @@
 
 from esmvalcore import __version__, esgf
 from esmvalcore._provenance import get_recipe_provenance
-from esmvalcore._task import BaseTask, DiagnosticTask, ResumeTask, TaskSet
+from esmvalcore._task import DiagnosticTask, ResumeTask, TaskSet
 from esmvalcore.config._config import TASKSEP
 from esmvalcore.config._dask import validate_dask_config
 from esmvalcore.config._diagnostics import TAGS
@@ -59,6 +59,9 @@
 if TYPE_CHECKING:
     from collections.abc import Iterable, Sequence
 
+    from prov.model import ProvEntity
+
+    from esmvalcore._task import BaseTask
     from esmvalcore.config import Session
     from esmvalcore.io.protocol import DataElement
     from esmvalcore.typing import Facets
@@ -964,7 +967,10 @@ def _need_ncl(raw_diagnostics: dict[str, Diagnostic]) -> bool:
                     return True
         return False
 
-    def _initialize_provenance(self, raw_documentation: dict[str, Any]):
+    def _initialize_provenance(
+        self,
+        raw_documentation: dict[str, Any],
+    ) -> ProvEntity:
         """Initialize the recipe provenance."""
         doc = deepcopy(raw_documentation)
 
@@ -1380,10 +1386,10 @@ def write_html_summary(self) -> None:
                 RecipeOutput,
             )
 
-            output = self.get_output()
-
             try:
-                output = RecipeOutput.from_core_recipe_output(output)
+                output = RecipeOutput.from_core_recipe_output(
+                    self.get_output(),
+                )
             except LookupError as error:
                 # See https://github.com/ESMValGroup/ESMValCore/issues/28
                 logger.warning("Could not write HTML report: %s", error)

esmvalcore/_recipe/to_datasets.py

@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 import logging
-from collections.abc import Iterable, Iterator, Sequence
+from collections.abc import Iterable
 from copy import deepcopy
 from typing import TYPE_CHECKING, Any
 
@@ -23,6 +23,7 @@
 from ._io import _load_recipe
 
 if TYPE_CHECKING:
+    from collections.abc import Iterator, Sequence
     from pathlib import Path
 
     from esmvalcore.config import Session

esmvalcore/_task.py

@@ -1,5 +1,7 @@
 """ESMValtool task definition."""
 
+from __future__ import annotations
+
 import abc
 import contextlib
 import datetime
@@ -283,7 +285,7 @@ def flatten(self):
         tasks.add(self)
         return tasks
 
-    def run(self, input_files=None):
+    def run(self, input_files: list[str] | None = None) -> None:
         """Run task."""
         if not self.output_files:
             if input_files is None:
@@ -308,7 +310,7 @@ def run(self, input_files=None):
         return self.output_files
 
     @abc.abstractmethod
-    def _run(self, input_files):
+    def _run(self, input_files: list[str]) -> list[str]:
         """Run task."""
 
     def get_product_attributes(self) -> dict:
@@ -362,7 +364,7 @@ def __init__(self, prev_preproc_dir, preproc_dir, name):
 
         super().__init__(ancestors=None, name=name, products=products)
 
-    def _run(self, _):
+    def _run(self, _: list[str]) -> list[str]:
         """Return the result of a previous run."""
         metadata = self.get_product_attributes()
 
@@ -810,11 +812,11 @@ def available_cpu_count() -> int:
 class TaskSet(set):
     """Container for tasks."""
 
-    def flatten(self) -> "TaskSet":
+    def flatten(self) -> TaskSet:
         """Flatten the list of tasks."""
         return TaskSet(t for task in self for t in task.flatten())
 
-    def get_independent(self) -> "TaskSet":
+    def get_independent(self) -> TaskSet:
         """Return a set of independent tasks."""
         independent_tasks = TaskSet()
         all_tasks = self.flatten()

esmvalcore/cmor/_fixes/cmip5/ec_earth.py

@@ -1,6 +1,8 @@
 """Fixes for EC-Earth model."""
 
-from collections.abc import Iterable
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
 
 import iris
 import numpy as np
@@ -12,6 +14,9 @@
     cube_to_aux_coord,
 )
 
+if TYPE_CHECKING:
+    from collections.abc import Iterable
+
 
 class Sic(Fix):
     """Fixes for sic."""

esmvalcore/cmor/_fixes/cmip6/cesm2.py

@@ -1,7 +1,9 @@
 """Fixes for CESM2 model."""
 
-from pathlib import Path
+from __future__ import annotations
+
 from shutil import copyfile
+from typing import TYPE_CHECKING
 
 import iris
 import iris.coords
@@ -18,6 +20,9 @@
     fix_ocean_depth_coord,
 )
 
+if TYPE_CHECKING:
+    from pathlib import Path
+
 
 class Cl(Fix):
     """Fixes for ``cl``."""

esmvalcore/cmor/_fixes/cmip6/e3sm_1_1.py

@@ -1,10 +1,15 @@
 """Fixes for E3SM-1-1 model."""
 
-from iris.cube import Cube
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
 
 from esmvalcore.cmor.fix import Fix
 from esmvalcore.preprocessor._shared import get_array_module
 
+if TYPE_CHECKING:
+    from iris.cube import Cube
+
 
 def _mask_greater(cube: Cube, value: float) -> Cube:
     """Mask all data of cube which is greater than ``value``."""

esmvalcore/cmor/_fixes/cmip6/ec_earth3_veg_lr.py

@@ -1,12 +1,17 @@
 """Fixes for EC-Earth3-Veg-LR model."""
 
-from collections.abc import Sequence
+from __future__ import annotations
 
-import iris.cube
+from typing import TYPE_CHECKING
 
 from esmvalcore.cmor._fixes.common import OceanFixGrid
 from esmvalcore.cmor._fixes.fix import Fix
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
+    import iris.cube
+
 
 class AllVars(Fix):
     """Fixes for all variables."""

esmvalcore/cmor/_fixes/fix.py

@@ -8,13 +8,13 @@
 import logging
 import tempfile
 from pathlib import Path
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any
 
 import dask
 import numpy as np
 from cf_units import Unit
-from iris.coords import Coord, CoordExtent
-from iris.cube import Cube, CubeList
+from iris.coords import CoordExtent
+from iris.cube import CubeList
 from iris.exceptions import UnitConversionError
 from iris.util import reverse
 
@@ -37,6 +37,8 @@
 
     import ncdata
     import xarray as xr
+    from iris.coords import Coord
+    from iris.cube import Cube
 
     from esmvalcore.cmor.table import CoordinateInfo, VariableInfo
     from esmvalcore.config import Session
@@ -421,12 +423,12 @@ def _msg_suffix(cube: Cube) -> str:
             return f"\n(for file {cube.attributes['source_file']})"
         return f"\n(for variable {cube.var_name})"
 
-    def _debug_msg(self, cube: Cube, msg: str, *args) -> None:
+    def _debug_msg(self, cube: Cube, msg: str, *args: Any) -> None:
         """Print debug message."""
         msg += self._msg_suffix(cube)
         generic_fix_logger.debug(msg, *args)
 
-    def _warning_msg(self, cube: Cube, msg: str, *args) -> None:
+    def _warning_msg(self, cube: Cube, msg: str, *args: Any) -> None:
         """Print debug message."""
         msg += self._msg_suffix(cube)
         generic_fix_logger.warning(msg, *args)

esmvalcore/cmor/_fixes/icon/_base_fixes.py

@@ -10,7 +10,7 @@
 from pathlib import Path
 from shutil import copyfileobj
 from tempfile import NamedTemporaryFile
-from typing import Any
+from typing import TYPE_CHECKING, Any
 from urllib.parse import urlparse
 
 import iris
@@ -19,15 +19,19 @@
 import requests
 from cf_units import Unit
 from iris import NameConstraint
-from iris.coords import AuxCoord, Coord, DimCoord
-from iris.cube import Cube, CubeList
+from iris.coords import AuxCoord, DimCoord
+from iris.cube import CubeList
 from iris.mesh import Connectivity, MeshXY
 
 import esmvalcore.local
 from esmvalcore.cmor._fixes.native_datasets import NativeDatasetFix
 from esmvalcore.config._data_sources import _get_data_sources
 from esmvalcore.iris_helpers import add_leading_dim_to_cube, date2num
 
+if TYPE_CHECKING:
+    from iris.coords import Coord
+    from iris.cube import Cube
+
 logger = logging.getLogger(__name__)