Fix TypeError when no package manager lock file exists

[Copilot]

Users running npx prettier-husky-lint-staged-installer in projects without package-lock.json, pnpm-lock.yaml, or bun.lockb encounter:

TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined

Analysis

Published version 1.3.1 lacks process.exit(0) in the else block when no supported lock file is found. Script continues executing with precommitFileBody undefined, causing TypeError when writing to .husky/pre-commit.

Fix

Status: Already fixed in repository code (commit 81f9488), not yet published to npm.

Line 42 of bin/cli.js includes the missing process.exit(0):

} else {
  p.stop()
  p.message('This project only support npm/pnpm/bun project.')
  outro('Finished.')
  process.exit(0)  // Prevents undefined precommitFileBody usage
}

Additionally, the code uses promise-based fs operations (node:fs/promises) instead of callback-based operations for proper async handling.

Next Step

Publish version 1.3.2+ to npm to deploy the fix.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined</issue_title>
<issue_description>~/l/create-web-site (main|↑1|✚3) $ npx prettier-husky-lint-staged-installer
┌ Installing via husky, prettier, lint-staged...
│
◇
│
└ Finished.

◇
┌ Configration...
│
◇
│
└ You're all set!🎉

node:internal/errors:540
throw error;
^

TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined
at writeFile (node:fs:2368:5)
at file:///Users/ryotamurakami/.npm/_npx/a8a5225a7dd30b1e/node_modules/prettier-husky-lint-staged-installer/bin/cli.js:65:3
at FSReqCallback.readFileAfterClose [as oncomplete] (node:internal/fs/read/context:68:3) {
code: 'ERR_INVALID_ARG_TYPE'</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined #264

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