[Bug]: migrate csf-2-to-3 does not work for CSF1 · storybookjs/storybook#22408

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bugclihelp wantedsev:S4

説明

Describe the bug

After executing the command, the blank line of the file is deleted without any migration modification

 npx storybook@latest migrate csf-2-to-3 --glob="src/**/*.stories.js"

pic for result

To Reproduce

No response

System

Environment Info:

  System:
    OS: macOS 12.3.1
    CPU: (10) arm64 Apple M1 Max
  Binaries:
    Node: 16.13.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /opt/homebrew/bin/yarn
    npm: 8.1.2 - /usr/local/bin/npm
  Browsers:
    Chrome: 112.0.5615.137
    Firefox: 110.0.1
    Safari: 15.4
  npmPackages:
    @storybook/addon-actions: ^7.0.7 => 7.0.8
    @storybook/addon-console: ^1.2.3 => 1.2.3
    @storybook/addon-links: ^7.0.7 => 7.0.8
    @storybook/addons: ^7.0.7 => 7.0.8
    @storybook/cli: ^7.0.7 => 7.0.8
    @storybook/client-api: ^7.0.7 => 7.0.8
    @storybook/react: ^7.0.7 => 7.0.8
    @storybook/react-webpack5: ^7.0.7 => 7.0.8
    @storybook/theming: ^7.0.7 => 7.0.8

Additional context

No response

コントリビューターガイド

技術スタック: typescriptnodejs
領域: cli
Issue 種別: bug
難度: 3
推定時間: 1-3 hours
活動状況: needs maintainer response
明確さ: needs investigation
前提条件: Basic understanding of Storybook's CSF formatFamiliarity with Node.js CLI tools
初心者向け度: 35
調査方針: Investigate the csf 2 to 3 migration script in the Storybook repository. Look for the codemod package (likely under `code/lib/codemod` or similar) and examine how it processes CSF1 stories. Check if the migration incorrectly handles blank lines or fails to apply transformations to old format stories. Review the issue comments for any additional context or reproduction steps provided by maintainers. Attempt to reproduce the bug with a minimal CSF1 story file to identify the exact failure point.