Function getCachedBinaryPath

packages/fetch-engine/src/download.ts:353–380

({
  version,
  binaryTarget,
  binaryName,
}: GetCachedBinaryOptions)

}

async function getCachedBinaryPath({
  version,
  binaryTarget,
  binaryName,
}: GetCachedBinaryOptions): Promise<string | null> {
  const cacheDir = await getCacheDir(channel, version, binaryTarget)
  if (!cacheDir) {
    return null
  }

  const cachedTargetPath = path.join(cacheDir, binaryName)

  if (!fs.existsSync(cachedTargetPath)) {
    return null
  }

  // All versions not called 'latest' are unique
  // only latest needs more checks
  if (version !== 'latest') {
    return cachedTargetPath
  }

  if (await exists(cachedTargetPath)) {
    return cachedTargetPath
  }

  return null
}

type DownloadBinaryOptions = BinaryDownloadJob & {
  version: string