Just use ESLint

script/eslint.ts

@@ -1,29 +1,10 @@
 #!/usr/bin/env ts-node
 
+import * as Path from 'path'
 import chalk from 'chalk'
+import { execFile } from 'child_process'
 
-/**
- * A partial `eslint_d` client interface.
- * It currently only includes the methods actually used by this file.
- */
-interface IClient {
-  // there’s other stuff; I’m not including it
-  // because it’s not needed here.
-  // If you want to add to it, here’s the source:
-  // https://github.com/mantoni/eslint_d.js/blob/v5.1.0/lib/client.js
-  /**
-   * Lint a project using the ESLint server instance,
-   * or start a new instance if one is not available.
-   * @param args The arguments to pass to ESLint.
-   *             Interpreted as if passed after `eslint` on the command line.
-   * @param text The text to lint, if no files are passed as arguments.
-   */
-  lint(args: string[], text?: string): void
-}
-
-const client: IClient = require('eslint_d/lib/client')
-
-const ESLINT_ARGS = [
+const args = [
   '--cache',
   '--rulesdir=./eslint-rules',
   './{script,eslint-rules}/**/*.{j,t}s?(x)',
@@ -33,14 +14,14 @@ const ESLINT_ARGS = [
   ...process.argv.slice(2),
 ]
 
-client.lint(ESLINT_ARGS)
+const root = Path.join(__dirname, '..')
+const eslintPath = Path.join(root, 'node_modules', '.bin', 'eslint')
+const child = execFile(eslintPath, args, { cwd: root }, (err, stdout) => {
+  console.log(stdout)
+})
 
-type ProcessOnExit = (cb: (code: number) => void) => void
-/** HACK: allow process.on('exit') to be called with a `number` */
-const onExit = process.on.bind(process, 'exit') as ProcessOnExit
-
-onExit(code => {
-  if (code && ESLINT_ARGS.indexOf('--fix') === -1) {
+child.on('exit', code => {
+  if (code && args.indexOf('--fix') === -1) {
     console.error(
       chalk`{bold.green → To fix some of these errors, run {underline yarn eslint:fix}}`
     )