pnpm-catalogs-to-bun

Migrate pnpm workspace catalogs to bun catalog format.

Usage

# Run the migration
npx codemod pnpm-catalogs-to-bun

# Or run directly
npx pnpm-catalogs-to-bun

What it does

This codemod migrates your pnpm workspace catalog configuration to bun's catalog format:

Before (pnpm-workspace.yaml)

packages:
  - 'packages/*'

catalog:
  react: ^19.2.0
  lodash: ^4.17.21
  typescript: ^5.3.0

After (package.json)

{
  "workspaces": {
    "packages": ["packages/*"],
    "catalog": {
      "lodash": "^4.17.21",
      "react": "^19.2.0",
      "typescript": "^5.3.0"
    }
  }
}

All workspace packages using catalog dependencies (catalog:) will continue to work with bun.

Requirements

• Bun v1.1.30 or higher (for catalog support)
• Existing pnpm workspace with catalog configuration

After migration

1. Remove pnpm files (optional):

   rm pnpm-workspace.yaml pnpm-lock.yaml

2. Install dependencies with bun:

   bun install

3. Verify:

   bun pm ls

Features

• ✅ Migrates catalog from pnpm-workspace.yaml to root package.json
• ✅ Preserves catalog: references in workspace packages
• ✅ Merges named catalogs (if any) into single catalog
• ✅ Sorts catalog entries alphabetically
• ✅ Adds workspaces configuration if missing

Notes

• Bun's catalog feature is equivalent to pnpm's catalog
• Named catalogs (pnpm's catalogs:) are merged into one catalog
• The codemod preserves all existing catalog: references

License

Apache-2.0