fix: exit gracefully when press ctrl + c

[hyperz111]

Prerequisites checklist

• I have read the contributing guidelines.

What is the purpose of this pull request?

In this PR, i make the prompt is handle ctrl + c gracefully.

What changes did you make? (Give an overview)

When we do ctrl + c:

@eslint/create-config: v1.9.0

✖ What do you want to lint? · No items were selected
node:internal/readline/interface:568
      throw new ERR_USE_AFTER_CLOSE('readline');
            ^

Error [ERR_USE_AFTER_CLOSE]: readline was closed
    at Interface.pause (node:internal/readline/interface:568:13)
    at MultiSelect.off [as stop] (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/keypress.js:217:8)
    at Object.onceWrapper (node:events:622:28)
    at MultiSelect.emit (node:events:520:35)
    at prompt.emit (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/index.js:128:14)
    at MultiSelect.close (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/prompt.js:182:10)
    at MultiSelect.cancel (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/prompt.js:161:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async MultiSelect.keypress (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/prompt.js:46:14) {
  code: 'ERR_USE_AFTER_CLOSE'
}

Node.js v24.6.0

In this change, this would be:

@eslint/create-config: v1.10.0

✖ What do you want to lint? · No items were selected

Related Issues

N/A

Is there anything you'd like reviewers to focus on?

N/A

[eslint-github-bot]

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[Copilot]

Pull Request Overview

This PR improves the user experience of ESLint's configuration generator by implementing graceful exit handling for Ctrl+C interruptions and updating the visual styling of prompts and logging.

• Adds colored symbols and improved visual feedback for different types of log messages
• Updates prompt styling with consistent colors and symbols for better visual hierarchy
• Modifies logging utility functions to include colored symbols and consistent formatting

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated no comments.

File	Description
package.json	Adds ansi-colors dependency for terminal color support
lib/utils/logging.js	Refactors logging functions to include colored symbols and adds new log/success functions
lib/questions.js	Implements prompt styling with colors and symbols via setQuestionsPromptStyle function
lib/config-generator.js	Updates log function calls to use new success function for positive outcomes

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[nzakas]

Thanks for the pull request. Can you please give us more detail about what you changed and why?

[hyperz111]

Thanks for the pull request. Can you please give us more detail about what you changed and why?

When we do ctrl + c:

@eslint/create-config: v1.9.0

✖ What do you want to lint? · No items were selected
node:internal/readline/interface:568
      throw new ERR_USE_AFTER_CLOSE('readline');
            ^

Error [ERR_USE_AFTER_CLOSE]: readline was closed
    at Interface.pause (node:internal/readline/interface:568:13)
    at MultiSelect.off [as stop] (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/keypress.js:217:8)
    at Object.onceWrapper (node:events:622:28)
    at MultiSelect.emit (node:events:520:35)
    at prompt.emit (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/index.js:128:14)
    at MultiSelect.close (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/prompt.js:182:10)
    at MultiSelect.cancel (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/prompt.js:161:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async MultiSelect.keypress (/data/data/com.termux/files/home/.npm/_npx/abe235584debfe0e/node_modules/enquirer/lib/prompt.js:46:14) {
  code: 'ERR_USE_AFTER_CLOSE'
}

Node.js v24.6.0

In this change, this would be:

@eslint/create-config: v1.10.0

✖ What do you want to lint? · No items were selected
✖ Operation Cancelled.

[nzakas]

Got it, thanks for explaining. In order to keep this PR focused, can you remove the changes that don't relate that?

[nzakas]

We probably want to catch SIGINT and SIGTERM, like in this post:
https://dev.to/superiqbal7/graceful-shutdown-in-nodejs-handling-stranger-danger-29jo

[lumirlumir]

If possible, could we add a brief test to check whether SIGINT and SIGTERM work as expected?

[hyperz111]

We probably want to catch SIGINT and SIGTERM, like in this post:
https://dev.to/superiqbal7/graceful-shutdown-in-nodejs-handling-stranger-danger-29jo

But when we do ctrl + c (SIGINT), this is will throw

Error [ERR_USE_AFTER_CLOSE]: readline was closed

See this

[hyperz111]

@nzakas, this is OK?