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Core: Throw an error when detecting empty stories field #23942

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merged 2 commits into from Aug 29, 2023

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@yannbf yannbf commented Aug 24, 2023

Closes #23928

What I did

This PR introduces a new error which is thrown when users don't have a stories field in their main.js file.
Projects using the StorybookConfig type already have a type error, but if it's a js project, or users don't use the types, they could face this scenario. Now they will get a proper error message rather than an uncaught exception.

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. Run a sandbox for template, e.g. yarn task --task sandbox --start-from auto --template react-vite/default-ts
  2. Delete the stories field from main.ts
  3. run yarn storybook - see the failure

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.

馃 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>

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@shilman shilman left a comment

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Some small docs suggestions, otherwise LGTM!

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@yannbf yannbf force-pushed the yann/throw-error-on-empty-stories branch from ab405f4 to 4e6d66f Compare August 29, 2023 07:59
@yannbf yannbf merged commit 3d07eaf into next Aug 29, 2023
14 checks passed
@yannbf yannbf deleted the yann/throw-error-on-empty-stories branch August 29, 2023 07:59
@github-actions github-actions bot mentioned this pull request Aug 29, 2023
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@JReinhold JReinhold added maintenance User-facing maintenance tasks and removed bug labels Aug 29, 2023
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Error: Cannot read properties of undefined (reading 'map')
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