Ensure .gitignore updated via CLI ends with a newline

[3w36zj6]

What I did

POSIX defines that text files should end with a newline¹. However, the .gitignore updated via CLI does not end with a newline.
Therefore, I fixed it to ensure that a newline is added to the final line.

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

1. Navigate to the project folder where .gitignore does not include *storybook.log.
2. Add storybook using the init command via the CLI
3. Expect the .gitignore file to be updated, with the final line ending in a newline.

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

🦋 Canary release

This PR does not have a canary release associated. You can request a canary release of this pull request by mentioning the @storybookjs/core team here.

core team members can create a canary release here or locally with gh workflow run --repo storybookjs/storybook canary-release-pr.yml --field pr=<PR_NUMBER>

Greptile Summary

This pull request makes a minor but important change to ensure the .gitignore file updated by the Storybook CLI ends with a newline character, aligning with POSIX standards for text files.

• Modified code/lib/create-storybook/src/initiate.ts to add a newline character when appending to .gitignore
• Ensures compatibility with POSIX standards for text files
• Improves consistency and prevents potential issues with git and other tools
• Simple change with minimal risk of unintended side effects
• Enhances the overall quality and standards compliance of the Storybook CLI

Footnotes

1. https://stackoverflow.com/questions/729692/why-should-text-files-end-with-a-newline ↩

[greptile-apps]

LGTM

_{1 file(s) reviewed, no comment(s)
Edit PR Review Bot Settings}