python-lsp
diff --git a/‎README.md
Lines changed: 3 additions & 0 deletions b/‎README.md
Lines changed: 3 additions & 0 deletions
diff --git a/‎pylsp_ruff/ruff_lint.py
Lines changed: 3 additions & 0 deletions b/‎pylsp_ruff/ruff_lint.py
Lines changed: 3 additions & 0 deletions
diff --git a/‎tests/test_ruff_lint.py
Lines changed: 8 additions & 2 deletions b/‎tests/test_ruff_lint.py
Lines changed: 8 additions & 2 deletions
@@ -40,3 +40,6 @@ the valid configuration keys:
  - `pylsp.plugins.ruff.lineLength`: Set the line-length for length checks.
  - `pylsp.plugins.ruff.perFileIgnores`: File-specific error codes to be ignored.
  - `pylsp.plugins.ruff.select`: List of error codes to enable.
+ - `pylsp.plugins.ruff.extendSelect`: Same as select, but append to existing error codes.
+
+For more information on the configuration visit [Ruff's homepage](https://beta.ruff.rs/docs/configuration/).
@@ -33,6 +33,7 @@ def pylsp_settings():
                 "lineLength": None,
                 "perFileIgnores": None,
                 "select": None,
+                "extendSelect": None,
             },
             "pyflakes": {"enabled": False},
             "flake8": {"enabled": False},
@@ -253,6 +254,7 @@ def load_config(workspace: Workspace, document: Document) -> dict:
             "line-length": None,
             "per-file-ignores": None,
             "select": None,
+            "extend-select": None,
         }
 
     else:
@@ -265,6 +267,7 @@ def load_config(workspace: Workspace, document: Document) -> dict:
             "line-length": _settings.get("lineLength", None),
             "per-file-ignores": _settings.get("perFileIgnores", None),
             "select": _settings.get("select", None),
+            "extend-select": _settings.get("extendSelect", None),
         }
 
     return settings
@@ -77,12 +77,15 @@ def test_ruff_config_param(workspace):
         mock_instance = popen_mock.return_value
         mock_instance.communicate.return_value = [bytes(), bytes()]
         ruff_conf = "/tmp/pyproject.toml"
-        workspace._config.update({"plugins": {"ruff": {"config": ruff_conf}}})
+        workspace._config.update(
+            {"plugins": {"ruff": {"config": ruff_conf, "extendSelect": ["D", "F"]}}}
+        )
         _name, doc = temp_document(DOC, workspace)
         ruff_lint.pylsp_lint(workspace, doc)
         (call_args,) = popen_mock.call_args[0]
         assert "ruff" in call_args
         assert f"--config={ruff_conf}" in call_args
+        assert "--extend-select=D,F" in call_args
 
 
 def test_ruff_executable_param(workspace):
@@ -122,6 +125,7 @@ def test_ruff_config(workspace):
     "blah/__init__.py",
     "file_2.py"
 ]
+extend-select = ["D"]
 [tool.ruff.per-file-ignores]
 "test_something.py" = ["F401"]
 """
@@ -172,8 +176,10 @@ def f():
     _list = []
     for diag in diags:
         _list.append(diag["code"])
-    # Assert that ignore is working as intended
+    # Assert that ignore and extend-select is working as intended
     assert "E402" in _list
+    assert "D103" in _list
+    assert "D104" in _list
     assert "F841" not in _list
 
     # Excludes