def writeHostKey()

in src/main/scala/com/gu/ssm/SSH.scala [41:62]

• 20 lines of code
• 4 McCabe index (conditional complexity)

  def writeHostKey(addressHostKeyTuples: (String, String)*): Attempt[File] = {
    // Write key to file.
    val prefix = "security_ssm-scala_temporary-host-key"
    val suffix = ".tmp"

    try {
      val hostKeyFile = File.createTempFile(prefix, suffix)
      val writer = new PrintWriter(new FileOutputStream(hostKeyFile))
      try {
        addressHostKeyTuples.foreach { case (address, hostKey) =>
          writer.println(s"$address $hostKey")
        }
      } finally {
        writer.close()
      }
      Attempt.Right(hostKeyFile)
    } catch {
      case e:IOException => Attempt.Left(
        Failure(s"Unable to create host key file", "Error creating host key on disk", UnhandledError, e)
      )
    }
  }