feat: remove deprecated options in [tool.darker]

CHANGES.rst

@@ -11,6 +11,12 @@ Added
 - Do not reformat renamed files.
 - CI workflow to post recent project activity in a discussion. Triggered manually.
 
+Removed
+-------
+- In the Darker configuration file under ``[tool.darker]``, the Black configuration
+  options ``skip_string_normalization`` and ``skip_magic_trailing_comma`` are no longer
+  valid. Use ``[tool.black]`` instead.
+
 Fixed
 -----
 - Update ``darkgray-dev-tools`` for Pip >= 24.1 compatibility.

README.rst

@@ -462,8 +462,9 @@ command line options
 
 *New in version 1.7.0:* The ``-f`` / ``--flynt`` command line option
 
-*New in version 2.1.1:* In ``[tool.darker]``, deprecate the the Black options
-``skip_string_normalization`` and ``skip_magic_trailing_comma``
+*New in version 3.0.0:* In ``[tool.darker]``, remove the the Black options
+``skip_string_normalization`` and ``skip_magic_trailing_comma`` (previously deprecated
+in version 2.1.1)
 
 .. _Black documentation about pyproject.toml: https://black.readthedocs.io/en/stable/usage_and_configuration/the_basics.html#configuration-via-a-file
 .. _isort documentation about config files: https://timothycrosley.github.io/isort/docs/configuration/config_files/

src/darker/tests/test_command_line.py

@@ -250,20 +250,6 @@ def test_parse_command_line(
     dict(config={"check": True}, expect_warn=set()),
     dict(config={"isort": True}, expect_warn=set()),
     dict(config={"lint": ["pylint"]}, expect_warn=set()),
-    dict(
-        config={"skip_string_normalization": True},
-        expect_warn={
-            "The configuration option `skip_string_normalization` in [tool.darker] is"
-            " deprecated and will be removed in Darker 3.0."
-        },
-    ),
-    dict(
-        config={"skip_magic_trailing_comma": True},
-        expect_warn={
-            "The configuration option `skip_magic_trailing_comma` in [tool.darker] is"
-            " deprecated and will be removed in Darker 3.0."
-        },
-    ),
     dict(config={"line_length": 88}, expect_warn=set()),
     dict(config={"target_version": "py37"}, expect_warn=set()),
     dict(
@@ -273,23 +259,21 @@ def test_parse_command_line(
             "check": True,
             "isort": True,
             "lint": ["pylint"],
-            "skip_string_normalization": True,
-            "skip_magic_trailing_comma": True,
             "line_length": 88,
             "target_version": "py37",
         },
-        expect_warn={
-            "The configuration option `skip_magic_trailing_comma` in [tool.darker] is"
-            " deprecated and will be removed in Darker 3.0.",
-            "The configuration option `skip_string_normalization` in [tool.darker] is"
-            " deprecated and will be removed in Darker 3.0.",
-        },
+        expect_warn=set(),
     ),
 )
 def test_parse_command_line_deprecated_option(
     tmp_path, monkeypatch, config, expect_warn
 ):
-    """`parse_command_line` warns about deprecated configuration options."""
+    """`parse_command_line` warns about deprecated configuration options.
+
+    Currently no options are under deprecation, but this test is kept here as a
+    placeholder so it's easy to add new tests when new deprecated options are added.
+
+    """
     monkeypatch.chdir(tmp_path)
     (tmp_path / "pyproject.toml").write_text(toml.dumps({"tool": {"darker": config}}))
     with patch("darker.command_line.warnings.warn") as warn: