fix: handle different rule file extensions like .ts in require-meta-docs-url rule (#224)

Author: bmish

Diff for: lib/rules/require-meta-docs-url.js

@@ -49,7 +49,7 @@ module.exports = {
     const options = context.options[0] || {};
     const sourceCode = context.getSourceCode();
     const filename = context.getFilename();
-    const ruleName = filename === '<input>' ? undefined : path.basename(filename, '.js');
+    const ruleName = filename === '<input>' ? undefined : path.basename(filename, path.extname(filename));
     const expectedUrl = !options.pattern || !ruleName
       ? undefined
       : options.pattern.replace(/{{\s*name\s*}}/g, ruleName);

Diff for: tests/lib/rules/require-meta-docs-url.js

@@ -66,6 +66,17 @@ tester.run('require-meta-docs-url', rule, {
         pattern: 'path/to/{{name}}.md',
       }],
     },
+    {
+      // CJS file extension
+      filename: 'test-rule.cjs',
+      code: `
+        module.exports = {
+          meta: {docs: {url: "path/to/test-rule.md"}},
+          create() {}
+        }
+      `,
+      options: [{ pattern: 'path/to/{{name}}.md' }],
+    },
     {
       // ESM
       filename: 'test-rule',
@@ -80,6 +91,18 @@ tester.run('require-meta-docs-url', rule, {
       }],
       parserOptions: { sourceType: 'module' },
     },
+    {
+      // TypeScript
+      filename: 'rules/test-rule.ts',
+      code: `
+        export default {
+          meta: {docs: {url: "path/to/test-rule.md"}},
+          create() {}
+        }
+      `,
+      options: [{ pattern: 'path/to/{{name}}.md' }],
+      parserOptions: { sourceType: 'module' },
+    },
     {
       // `url` in variable.
       filename: 'test-rule',
@@ -542,6 +565,30 @@ tester.run('require-meta-docs-url', rule, {
 docs: {
 url: "plugin-name/test.md"
 }
+},
+          create() {}
+        }
+      `,
+      options: [{
+        pattern: 'plugin-name/{{ name }}.md',
+      }],
+      errors: [{ messageId: 'missing', type: 'ObjectExpression' }],
+    },
+    {
+      // CJS file extension
+      filename: 'test.cjs',
+      code: `
+        module.exports = {
+          meta: {},
+          create() {}
+        }
+      `,
+      output: `
+        module.exports = {
+          meta: {
+docs: {
+url: "plugin-name/test.md"
+}
 },
           create() {}
         }
@@ -576,6 +623,29 @@ url: "plugin-name/test.md"
       parserOptions: { sourceType: 'module' },
       errors: [{ messageId: 'missing', type: 'ObjectExpression' }],
     },
+    {
+      // TypeScript
+      filename: 'test.ts',
+      code: `
+        export default {
+          meta: {},
+          create() {}
+        }
+      `,
+      output: `
+        export default {
+          meta: {
+docs: {
+url: "plugin-name/test.md"
+}
+},
+          create() {}
+        }
+      `,
+      options: [{ pattern: 'plugin-name/{{ name }}.md' }],
+      parserOptions: { sourceType: 'module' },
+      errors: [{ messageId: 'missing', type: 'ObjectExpression' }],
+    },
     {
       filename: 'test.js',
       code: `