All files / src/rules no-lonely-index.ts

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import { Rule } from '../rule';
import { Node } from '../types';
 
const MATCHES_INDEX_FILE = /^index\./;
 
export class NoLonelyIndex extends Rule {
  public run(node: Node) {
    if (
      !node.isDirectory &&
      MATCHES_INDEX_FILE.test(node.name) &&
      node.siblingNamesIncludingSelf.length === 1
    ) {
      this.report(`Lonely index file at ${node.path}`);
    }
  }
 
  protected getName() {
    return 'NoLonelyIndex';
  }
}