Update and refactor

src/build-local-rules.ts

@@ -1,13 +1,14 @@
 #!/usr/bin/env tsx
-import { readdirSync, writeFileSync } from 'node:fs';
+import { promises as fs } from 'node:fs';
 import { camelCase } from 'lodash';
 
-const files = readdirSync('./src/rules')
-  .filter(file => file.endsWith('.ts'))
-  .filter(file => file !== 'index.ts')
-  .map(file => file.slice(0, -3));
+export async function buildLocalRules() {
+  const files = (await fs.readdir('./src/rules'))
+    .filter(file => file.endsWith('.ts'))
+    .filter(file => file !== 'index.ts')
+    .map(file => file.slice(0, -3));
 
-const entryFile = /* js */ `
+  const entryFile = /* js */ `
 import type { Rule } from 'eslint';
 import type { ESLintUtils } from '@typescript-eslint/utils';
 
@@ -21,4 +22,9 @@ export const rules: Record<
 };
 `.trim();
 
-writeFileSync('./src/rules/index.ts', entryFile + '\n');
+  await fs.writeFile('./src/rules/index.ts', entryFile + '\n');
+}
+
+if (require.main === module) {
+  buildLocalRules();
+}

src/check-imports.ts

@@ -1,46 +0,0 @@
-#!/usr/bin/env bun
-import glob from 'fast-glob';
-import fs from 'fs';
-import { builtinModules } from 'module';
-import { uniq } from 'lodash';
-import { dependencies, peerDependencies } from '../dist/package.json';
-
-const deps = Object.keys({ ...dependencies, ...peerDependencies }).concat('eslint');
-const builtIn = new Set(builtinModules.flatMap(module => [module, `node:${module}`]));
-
-function findRequires(text: string) {
-  const list = Array.from(text.matchAll(/require\(["']([^"']+)["']\)/g))
-    .map(m => m[1])
-    .filter(
-      module =>
-        !(
-          builtIn.has(module) ||
-          module.startsWith('eslint/') ||
-          module.startsWith('typescript/')
-        ),
-    );
-  return uniq(list);
-}
-
-const moduleMap = glob
-  .sync('dist/**/*.js')
-  .map(path => ({ key: path, value: findRequires(fs.readFileSync(path, 'utf8')) }));
-
-const files = Object.fromEntries(
-  moduleMap
-    .map(({ key, value }) => ({
-      key,
-      value: value.filter(
-        module =>
-          !(deps.includes(module) || deps.some(dep => module.startsWith(`${dep}/`))),
-      ),
-    }))
-    .filter(({ value }) => value.length > 0)
-    .map(({ key, value }) => [key, value]),
-);
-const uselessDeps = Object.keys(dependencies).filter(
-  dep => !moduleMap.some(({ value }) => value.includes(dep)),
-);
-
-console.log('Missing imports:', files);
-console.log('Unused dependencies:', uselessDeps);

src/polyfill.ts

@@ -57,3 +57,8 @@ export function* map<T, U>(
     yield callback(value);
   }
 }
+
+// safe-regex-test/index.js
+export function safeRegexTest(regex: RegExp) {
+  return (text: string) => regex.test(text);
+}