Previously our CLI assumed that when using an `--example` flag, the example contains a `package.json` file. There are examples though, like `with-docker-compose` which does not have one. In that case, we can simply clone the directory and show a success message.
<details>
<summary>
Full list of examples without <code>package.json</code>:
</summary>
<ul>
<li>custom-server</li>
<li>page-transitions</li>
<li>parameterized-routing</li>
<li>reproduction-template</li>
<li>with-chakra-ui-typescript</li>
<li>with-cookie-auth</li>
<li>with-docker-compose</li>
<li>with-dotenv</li>
<li>with-facebook-chat-plugin</li>
<li>with-firebase-authentication</li>
<li>with-firebase-authentication-serverless</li>
<li>with-glamorous</li>
<li>with-global-stylesheet</li>
<li>with-global-stylesheet-simple</li>
<li>with-graphql-faunadb</li>
<li>with-markdown</li>
<li>with-material-ui</li>
<li>with-next-auth</li>
<li>with-next-i18next</li>
<li>with-next-multilingual</li>
<li>with-next-routes</li>
<li>with-now-env</li>
<li>with-pretty-url-routing</li>
<li>with-prisma</li>
<li>with-redux-toolkit</li>
<li>with-redux-toolkit-typescript</li>
<li>with-sentry-simple</li>
<li>with-strict-csp-hash</li>
<li>with-styled-jsx-postcss</li>
<li>with-sw-precache</li>
<li>with-typescript-styled-components</li>
<li>with-universal-configuration-build-time</li>
<li>with-universal-configuration-runtime</li>
</ul>
</details>
Fixes#37884
In a follow-up PR, we can try to detect if an example contains a README.md file only, and if the example was moved, we could either try getting it from the new location or at least show a better message. (Eg.: using a magic comment that we can parse)
## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have helpful link attached, see `contributing.md`
## Feature
- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have helpful link attached, see `contributing.md`
## Documentation / Examples
- [ ] Make sure the linting passes by running `pnpm lint`
- [ ] The examples guidelines are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing.md#adding-examples)
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