module Proxy::RemoteExecution::Utils

Public Class Methods

prune_known_hosts!(hostname, port, logger = Logger.new($stdout)) click to toggle source

# File lib/smart_proxy_remote_execution_ssh/utils.rb, line 6
def prune_known_hosts!(hostname, port, logger = Logger.new($stdout))
  known_hosts = File.expand_path('~/.ssh/known_hosts')
  return unless File.file?(known_hosts)

  target = if port == 22
             hostname
           else
             "[#{hostname}]:#{port}"
           end

  _stdout, stderr, status = Open3.capture3('ssh-keygen', '-R', target, '-f', known_hosts)
  logger.warn("Could not remove #{target} from known_hosts: #{stderr.strip}") unless status.success?
rescue Errno::ENOENT => e
  logger.warn("Could not remove #{target} from known_hosts: #{e}")
end