Function setFnpdCache

packages/vite/src/node/packages.ts:360–370

(
  packageCache: PackageCache,
  pkgData: PackageData,
  basedir: string,
  originalBasedir: string,
)

}

function setFnpdCache(
  packageCache: PackageCache,
  pkgData: PackageData,
  basedir: string,
  originalBasedir: string,
) {
  packageCache.set(getFnpdCacheKey(basedir), pkgData)
  traverseBetweenDirs(originalBasedir, basedir, (dir) => {
    packageCache.set(getFnpdCacheKey(dir), pkgData)
  })
}

// package cache key for `findNearestPackageData`
function getFnpdCacheKey(basedir: string) {