Function resolvePackageData

packages/vite/src/node/packages.ts:63–127

(
  pkgName: string,
  basedir: string,
  preserveSymlinks = false,
  packageCache?: PackageCache,
)

}

export function resolvePackageData(
  pkgName: string,
  basedir: string,
  preserveSymlinks = false,
  packageCache?: PackageCache,
): PackageData | null {
  if (pnp) {
    const cacheKey = getRpdCacheKey(pkgName, basedir, preserveSymlinks)
    if (packageCache?.has(cacheKey)) return packageCache.get(cacheKey)!

    try {
      const pkg = pnp.resolveToUnqualified(pkgName, basedir, {
        considerBuiltins: false,
      })
      if (!pkg) return null

      const pkgData = loadPackageData(path.join(pkg, 'package.json'))
      packageCache?.set(cacheKey, pkgData)
      return pkgData
    } catch {
      return null
    }
  }

  const originalBasedir = basedir
  while (basedir) {
    if (packageCache) {
      const cached = getRpdCache(
        packageCache,
        pkgName,
        basedir,
        originalBasedir,
        preserveSymlinks,
      )
      if (cached) return cached
    }

    const pkg = path.join(basedir, 'node_modules', pkgName, 'package.json')
    try {
      if (fs.existsSync(pkg)) {
        const pkgPath = preserveSymlinks ? pkg : safeRealpathSync(pkg)
        const pkgData = loadPackageData(pkgPath)

        if (packageCache) {
          setRpdCache(
            packageCache,
            pkgData,
            pkgName,
            basedir,
            originalBasedir,
            preserveSymlinks,
          )
        }

        return pkgData
      }
    } catch {}