Essentials: Fix addon-essentials not working when used with getAbsolutePath

[JReinhold]

Closes #

What I did

We recently introduced an internal structure change to @storybook/addon-essentials, that would mean that it would no longer get applied when used with the getAbsolutePath() wrapper that we automatically write when detecting monorepos. This is because the main field in the package.json no longer points to the preset, so we instead have to rely on the presence of the root preset.js instead.

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

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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-storybook/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

Added a root-level preset.js file to ensure @storybook/addon-essentials works correctly with getAbsolutePath() wrapper in monorepo setups.

• Added code/addons/essentials/preset.js to maintain compatibility when using monorepo path resolution
• Fixed issue where addon-essentials would not get applied due to package.json main field no longer pointing to preset directly
• Ensures proper functionality when using getAbsolutePath() wrapper that Storybook automatically writes for monorepos

The change is minimal but crucial for maintaining compatibility in monorepo environments where path resolution needs to work consistently with the addon-essentials package.

[nx-cloud]

View your CI Pipeline Execution ↗ for commit e22c83c.

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☁️ Nx Cloud last updated this comment at 2025-02-17 13:14:35 UTC

[greptile-apps]

LGTM

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