Refactor using the new flake8-helper library.

flake8_sphinx_links/__init__.py

@@ -35,10 +35,13 @@
 import platform
 import re
 import sys
-from typing import Any, Dict, Generator, List, Pattern, Tuple, Type, Union
+from typing import Dict, List, Pattern, Union
+
+# 3rd party
+import flake8_helper
 
 __author__: str = "Dominic Davis-Foster"
-__copyright__: str = "2020 Dominic Davis-Foster"
+__copyright__: str = "2020-2021 Dominic Davis-Foster"
 __license__: str = "MIT"
 __version__: str = "0.1.0"
 __email__: str = "dominic@davis-foster.co.uk"
@@ -56,7 +59,7 @@
 
 SXL001: str = "SXL001 Double backticked strings should be a link to Python documentation."  # noqa: E501
 
-#: List of keywords that should become :file:`:py:obj:\`{<keyword>}\``
+#: List of keywords which should become :file:`:py:obj:\`{<keyword>}\``
 py_obj: List[str] = [
 		"True",
 		"False",
@@ -76,7 +79,7 @@
 to prevent conflict with Sphinx objects.
 """
 
-#: List of keywords that should become :file:`:py:exc:\`{<keyword>}\``
+#: List of keywords which should become :file:`:py:exc:\`{<keyword>}\``
 exc: List[str] = [
 		"BaseException",
 		"Exception",
@@ -174,14 +177,14 @@
 regex: Pattern = re.compile(fr"(``)({all_objs})(``)")
 
 
-class Visitor(ast.NodeVisitor):
+class Visitor(flake8_helper.Visitor):
 	"""
-	A Flake8 plugin to check docstrings for double backticked strings
+	AST visitor to check docstrings for double backticked strings
 	which should be links to the Python documentation.
 	"""  # noqa: D400
 
 	def __init__(self) -> None:
-		self.errors: List[Tuple[int, int, str]] = []
+		super().__init__()
 		self._from_imports: Dict[str, str] = {}
 
 	def _check_docstring(self, node: Union[ast.ClassDef, ast.FunctionDef, ast.Module]) -> None:
@@ -242,26 +245,12 @@ def visit_Module(self, node: ast.Module) -> None:  # noqa: D102
 		super().generic_visit(node)
 
 
-class Plugin:
-	"""
-	Flake8 plugin which checks for use of platform specific sphinx_links codes.
+class Plugin(flake8_helper.Plugin[Visitor]):
 	"""
+	Flake8 plugin to check docstrings for double backticked strings
+	which should be links to the Python documentation.
+	"""  # noqa: D400
 
 	name: str = __name__
 	version: str = __version__
-
-	def __init__(self, tree: ast.AST):
-		self._tree = tree
-
-	def run(self) -> Generator[Tuple[int, int, str, Type[Any]], None, None]:
-		"""
-		Traverse the Abstract Syntax Tree, extract docstrings and check them.
-
-		Yields a tuple of (line number, column offset, error message, type(self))
-		"""
-
-		visitor = Visitor()
-		visitor.visit(self._tree)
-
-		for line, col, msg in visitor.errors:
-			yield line, col, msg, type(self)
+	visitor_class = Visitor

formate.toml

@@ -37,6 +37,7 @@ known_third_party = [
     "coverage_pyver_pragma",
     "domdf_python_tools",
     "flake8",
+    "flake8_helper",
     "github",
     "pytest",
     "pytest_cov",

repo_helper.yml

@@ -41,3 +41,6 @@ min_coverage: 100
 
 sphinx_conf_epilogue:
  - nitpicky = True
+
+tox_unmanaged:
+ - testenv:lint

requirements.txt

@@ -1 +1,2 @@
 flake8>=3.7
+flake8-helper>=0.1.1

tox.ini

@@ -5,7 +5,6 @@
 #     * testenv
 #     * testenv:docs
 #     * testenv:build
-#     * testenv:lint
 #     * testenv:mypy
 #     * testenv:pyup
 #     * testenv:coverage
@@ -56,30 +55,6 @@ commands =
     twine check dist/*.tar.gz dist/*.whl
     check-wheel-contents dist/
 
-[testenv:lint]
-basepython = python3.6
-changedir = {toxinidir}
-ignore_errors = True
-skip_install = True
-deps =
-    flake8 >=3.8.2
-    flake8-2020 >= 1.6.0
-    flake8-builtins>=1.5.3
-    flake8-docstrings>=1.5.0
-    flake8-dunder-all>=0.1.1
-    flake8-github-actions>=0.1.0
-    flake8-pyi>=20.10.0
-    flake8-pytest-style>=1.3.0
-    flake8-sphinx-links>=0.0.4
-    flake8-strftime>=0.1.1
-    flake8-typing-imports>=1.10.0
-    git+https://github.com/PyCQA/pydocstyle@5118faa7173b0e5bbc230c4adf628758e13605bf
-    git+https://github.com/domdfcoding/flake8-quotes.git
-    git+https://github.com/domdfcoding/flake8-rst-docstrings.git
-    git+https://github.com/domdfcoding/flake8-rst-docstrings-sphinx.git
-    pygments>=2.7.1
-commands = python3 -m flake8_rst_docstrings_sphinx flake8_sphinx_links tests --allow-toolbox {posargs}
-
 [testenv:mypy]
 basepython = python3.6
 ignore_errors = True
@@ -151,5 +126,28 @@ package = flake8_sphinx_links
 addopts = --color yes --durations 25
 timeout = 300
 
+[testenv:lint]
+basepython = python3.6
+changedir = {toxinidir}
+ignore_errors = True
+deps =
+    flake8 >=3.8.2
+    flake8-2020 >= 1.6.0
+    flake8-builtins>=1.5.3
+    flake8-docstrings>=1.5.0
+    flake8-dunder-all>=0.1.1
+    flake8-github-actions>=0.1.0
+    flake8-pyi>=20.10.0
+    flake8-pytest-style>=1.3.0
+    flake8-sphinx-links>=0.0.4
+    flake8-strftime>=0.1.1
+    flake8-typing-imports>=1.10.0
+    git+https://github.com/PyCQA/pydocstyle@5118faa7173b0e5bbc230c4adf628758e13605bf
+    git+https://github.com/domdfcoding/flake8-quotes.git
+    git+https://github.com/domdfcoding/flake8-rst-docstrings.git
+    git+https://github.com/domdfcoding/flake8-rst-docstrings-sphinx.git
+    pygments>=2.7.1
+commands = python3 -m flake8_rst_docstrings_sphinx flake8_sphinx_links tests --allow-toolbox {posargs}
+
 [dep_checker]
 allowed_unused = flake8