+ Added no-index-import rule to prevent cyclic imports

src/index.js

@@ -15,6 +15,7 @@ export const rules = {
   'consistent-type-specifier-style': require('./rules/consistent-type-specifier-style'),
 
   'no-self-import': require('./rules/no-self-import'),
+  'no-index-import': require('./rules/no-index-import'),
   'no-cycle': require('./rules/no-cycle'),
   'no-named-default': require('./rules/no-named-default'),
   'no-named-as-default': require('./rules/no-named-as-default'),

src/rules/no-index-import.js

@@ -0,0 +1,40 @@
+/**
+ * @fileOverview Forbids a module from importing itself
+ * @author Gio d'Amelio
+ */
+
+import resolve from 'eslint-module-utils/resolve';
+import moduleVisitor from 'eslint-module-utils/moduleVisitor';
+import docsUrl from '../docsUrl';
+
+var path = require('path');
+const isIndexRegex = /index\.(ts|js)/;
+const isNodeModuleRegex = /node_modules/;
+
+module.exports = {
+  meta: {
+    type: 'problem',
+    docs: {
+      category: 'Static analysis',
+      description: 'Forbid a module to import any index to prevent cyclic imports',
+      recommended: false,
+      url: docsUrl('no-index-import'),
+    },
+    schema: [],
+  },
+  create(context) {
+    return moduleVisitor((source, node) => {
+      const filePath = context.getPhysicalFilename ? context.getPhysicalFilename() : context.getFilename();
+      const fileName = path.basename(filePath);
+      const resolved = resolve(source.value, context);
+      const resolveFileName = path.basename(resolved);
+
+      if (!isNodeModuleRegex.test(resolved) && !isIndexRegex.test(fileName) && isIndexRegex.test(resolveFileName)) {
+        context.report({
+          node,
+          message: 'Index imports are not allowed',
+        });
+      }
+    }, {commonjs: true});
+  },
+};