detect mccabe

flakehell/_constants.py

@@ -60,6 +60,7 @@ class ExitCodes(IntEnum):
     # 'flake8-strict',
     'flake8-string-format',
     'flake8-variables-names',
+    'mccabe',
     'pep8-naming',
 
     # built-in in flake8

flakehell/_logic/_extractors.py

@@ -14,7 +14,7 @@
 class CollectStrings(ast.NodeVisitor):
     _strings = []
 
-    def visit_Str(self, node):
+    def visit_Str(self, node):  # noqa: N802
         self._strings.append(node.s)
 
 
@@ -281,6 +281,13 @@ def extract_dlint():
     return codes
 
 
+def extract_mccabe():
+    from mccabe import McCabeChecker
+
+    code, message = McCabeChecker._error_tmpl.split(' ', maxsplit=1)
+    return {code: message}
+
+
 def extract_wemake_python_styleguide():
     from wemake_python_styleguide import violations
 

pyproject.toml

@@ -114,6 +114,7 @@ dev = [
     "flake8-strict",
     "flake8-string-format",
     "flake8-variables-names",
+    "mccabe",
     "pep8-naming",
     "pylint",
     "wemake-python-styleguide",