CLI: Prebundle more in cli-storybook package

[ndelangen]

What I did

Prebundle more code in the cli package

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

This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

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

Optimizes the CLI package by prebundling more dependencies and reorganizing imports, primarily focusing on Babel-related code and utilities.

• Moves utility packages (cross-spawn, envinfo, execa, etc.) from dependencies to devDependencies in code/lib/cli-storybook/package.json to reduce production bundle size
• Consolidates Babel imports by using storybook/internal/babel instead of direct @babel/* dependencies in multiple files
• Removes @babel/types dependency and related packages from both CLI and codemod packages
• Simplifies code in code/lib/codemod/src/transforms/find-implicit-spies.ts by using namespaced Babel type checks

[nx-cloud]

View your CI Pipeline Execution ↗ for commit ff3abbc.

Command	Status	Duration	Result
nx run-many -t build --parallel=3	✅ Succeeded	1m 15s	View ↗

---

☁️ Nx Cloud last updated this comment at 2025-06-11 13:32:50 UTC

[storybook-app-bot]

Package Benchmarks

^{Commit: ff3abbc, ran on 11 June 2025 at 13:35:21 UTC}

The following packages have significant changes to their size or dependencies:

@storybook/cli

	Before	After	Difference
Dependency count	324	216	🎉 -108 🎉
Self size	235 KB	582 KB	🚨 +347 KB 🚨
Dependency size	99.89 MB	94.66 MB	🎉 -5.22 MB 🎉
Bundle Size Analyzer	Link	Link

@storybook/codemod

	Before	After	Difference
Dependency count	267	185	🎉 -82 🎉
Self size	31 KB	31 KB	🎉 -361 B 🎉
Dependency size	82.77 MB	78.74 MB	🎉 -4.03 MB 🎉
Bundle Size Analyzer	Link	Link

[Copilot]

Pull Request Overview

This PR prebundles additional code in the cli package and migrates Babel-related imports from the external '@babel/*' packages to the internal Storybook packages. The changes include migrating type and function imports in several codemod and automigrate modules and cleaning up dependency entries in package.json files.

• Migrate Babel type and function imports in code/lib/codemod and cli-storybook packages.
• Remove external Babel dependencies and update dependency versions in package.json files.
• Refactor iteration over story entries in the codemod transform.

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
code/lib/codemod/src/transforms/find-implicit-spies.ts	Updated Babel imports and iterates over story entries using Object.values
code/lib/codemod/package.json	Removed external Babel dependencies
code/lib/cli-storybook/src/automigrate/helpers/addon-a11y-parameters.ts	Updated Babel import to internal package
code/lib/cli-storybook/src/automigrate/fixes/initial-globals.ts	Updated type usage for Babel Expression
code/lib/cli-storybook/package.json	Updated dependency versions and reorganized dependencies

Comments suppressed due to low confidence (1)

code/lib/codemod/src/transforms/find-implicit-spies.ts:108

• [nitpick] Changing from Object.entries to Object.values is valid if the key is not needed; please confirm that discarding the key does not affect behavior in other parts of the code.

Object.values(csf.stories).forEach(({ name }) => {

[greptile-apps]

LGTM

_{5 files reviewed, no comments
Edit PR Review Bot Settings | Greptile}