🐛 Bug: SyntaxError on description with regexp characters

[JoshuaKGoldberg]

Bug Report Checklist

• I have tried restarting my IDE and the issue persists.
• I have pulled the latest main branch of the repository.
• I have searched for related issues and found none that matched my issue.

Expected

Setup scripts such as --mode migrate should be able to plop in descriptions with special characters like ^ and $.

Actual

┌  Welcome to create-typescript-app ! 🎉
│
│  ⚠️ This template is early stage, opinionated, and not endorsed by the TypeScript team. ⚠️
│  ⚠️ If any tooling it sets displeases you, you can always remove that portion manually. ⚠️
│
◇  What organization or user will the repository be under?
│  JoshuaKGoldberg
│
◇  What will the kebab-case name of the repository be?
│  eslint-plugin-expect-type
│
◇  ✅ Passed checking GitHub authentication.
│
◇  How would you describe the new package?
│  ESLint plugin with ^? Twoslash, $ExpectError, and $ExpectType type assertions. 🧩
│
◇  What will the Title Case title of the repository be?
│  eslint-plugin-expect-type
│
◇  Migrating repository structure...
│   - Clearing unnecessary files ✔️
│   - Writing structure ✔️
│   - Writing README.md ✔️
│   - Updating local files.│  ❌ Error migrating repository structure > updating local files.
│
Error: Failed migrating repository structure > updating local files
    at withSpinners (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/shared/cli/spinners.js:42:11)
    at async migrateWithOptions (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/migrate/migrateWithOptions.js:15:3)
    ... 4 lines matching cause stack trace ...
    at async file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/bin/index.js:4:20 {
  [cause]: SyntaxError: Invalid regular expression: /ESLint plugin with ^? Twoslash, $ExpectError, and $ExpectType type assertions. 🧩/g: Nothing to repeat
      at new RegExp (<anonymous>)
      at updateLocalFiles (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/steps/updateLocalFiles.js:31:7)
      at async file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/migrate/migrateWithOptions.js:32:9
      at async withSpinners (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/shared/cli/spinners.js:28:7)
      at async migrateWithOptions (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/migrate/migrateWithOptions.js:15:3)
      at async run (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/migrate/index.js:19:9)
      at async runOrRestore (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/shared/runOrRestore.js:7:5)
      at async Object.migrate (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/migrate/index.js:17:11)
      at async bin (file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/lib/bin/index.js:44:29)
      at async file:///Users/josh/.npm/_npx/4aa729db9999bfc4/node_modules/create-typescript-app/bin/index.js:4:20
}
│
◇  Do you want to restore the repository to how it was?
│  No
│
●  Tip: to run again with the same input values, use: npx create-typescript-app --mode migrate --author JoshuaKGoldberg --base everything --description "ESLint plugin with ^? Twoslash, $ExpectError, and $ExpectType type assertions. 🧩" --email npm@joshuakgoldberg.com --owner JoshuaKGoldberg --repository eslint-plugin-expect-type --title eslint-plugin-expect-type
│
└  Operation cancelled. Exiting - maybe another time? 👋

Additional Info

Discovered working on JoshuaKGoldberg/eslint-plugin-expect-type#70.

[JoshuaKGoldberg]

Interestingly, I think there are two touch points that make this a nontrivial issue:

• The input regular expression in updateLocalFiles needs escaping.
  • I was able to use escape-string-regexp for this.
• The output description also needs some kind of escaping or swapping from regexp to plain text.
  • It kept getting printed as ESLint plugin with ^? Twoslash, , and type assertions. 🧩 (note the lack of $-prefixed words)...

Edit: OH the CLI output for a rerun suggestion was corrupting the description too! 😂

npx create-typescript-app --mode migrate --author JoshuaKGoldberg --base everything --description "ESLint plugin with ^? Twoslash, , and  type assertions. 🧩" --email npm@joshuakgoldberg.com --exclude-contributors true --owner JoshuaKGoldberg --repository eslint-plugin-expect-type --skip-github-api true --skip-install true --title eslint-plugin-expect-type

[JoshuaKGoldberg]

Properly escaping $s in the description on the CLI actually fixed the latter.

node ~/repos/create-typescript-app/bin/index.js --mode migrate --author JoshuaKGoldberg --base everything --description "ESLint plugin with ^? Twoslash, \$ExpectError, and \$ExpectType type assertions. <0001f9e9>" --email npm@joshuakgoldberg.com --owner JoshuaKGoldberg --repository eslint-plugin-expect-type --title eslint-plugin-expect-type --skip-github-api --exclude-contributors --skip-install

[github-actions]

🎉 This is included in version v1.32.0 🎉

The release is available on:

• GitHub releases
• npm package (@latest dist-tag)

Cheers! 📦🚀