metro/packages/metro-memory-fs/package.json

{
  "version": "0.30.2",
  "name": "metro-memory-fs",
  "description": "A memory-based implementation of `fs` useful for automated tests",
  "main": "src/index.js",
  "repository": {
    "type": "git",
    "url": "git@github.com:facebook/metro.git"
  },
  "scripts": {
    "prepare-release": "test -d build && rm -rf src.real && mv src src.real && mv build src",
    "cleanup-release": "test ! -e build && mv src build && mv src.real src"
  }
}