class UpdateChecker

Public Class Methods

new() click to toggle source
# File lib/docker-sync/update_check.rb, line 10
def initialize
  @config = DockerSync::GlobalConfig.load
  @newer_image_found = false
end

Public Instance Methods

check_and_warn(update_enforced = true) click to toggle source
# File lib/docker-sync/update_check.rb, line 86
def check_and_warn(update_enforced = true)
  return if ENV['DOCKER_SYNC_SKIP_UPDATE']
  # update the timestamp
  @config.update! 'update_last_check' => DateTime.now.iso8601(9)

  check = docker_sync_update_check
  if check.update_available
    say_status 'warning',"There is an update (#{check.latest_version}) available (current version #{check.current_version}). Please update before you continue",:yellow
    if yes?("Shall I update docker-sync to #{check.latest_version} for you?")
      if system('gem update docker-sync')
        say_status 'success','Successfully updated, please restart docker-sync and check the changelog at https://github.com/EugenMayer/docker-sync/releases',:green
        exit 0
      else
        say_status 'error','Unable to update docker-sync',:red
        exit 1
      end
    else
      exit 1 if update_enforced
    end
  end
end
check_rsync_image() click to toggle source
# File lib/docker-sync/update_check.rb, line 59
def check_rsync_image
  return if ENV['DOCKER_SYNC_SKIP_UPDATE']
  say_status 'ok','Checking if a newer rsync image is available'

  if system("docker pull eugenmayer/rsync | grep 'Downloaded newer image for'")
    say_status 'ok', 'Downloaded newer image for rsync', :green
    @newer_image_found = true
  else
    say_status 'ok', 'No newer image found - current image is up to date.'
  end

end
docker_sync_update_check() click to toggle source
# File lib/docker-sync/update_check.rb, line 79
def docker_sync_update_check
  gem_name = 'docker-sync'
  current_version = get_current_version
  checker = GemUpdateChecker::Client.new(gem_name, current_version)
  return checker
end
get_current_version() click to toggle source
# File lib/docker-sync/update_check.rb, line 72
def get_current_version
  path = File.expand_path('../../../', __FILE__)
  version = File.read("#{path}/VERSION")
  version.strip
  version
end
has_internet?() click to toggle source
# File lib/docker-sync/update_check.rb, line 40
def has_internet?
  `ping -c1 -t 1 8.8.8.8 > /dev/null 2>&1`
  return $?.success?
end
run() click to toggle source
# File lib/docker-sync/update_check.rb, line 15
def run
  return if ENV['DOCKER_SYNC_SKIP_UPDATE']
  unless @config['update_check']
    say_status 'hint','Skipping up-to-date check since it has been disabled in your ~/.docker-sync-global.yml configuration',:yellow
    return
  end
  unless should_run
    return
  end

  # do not check the image if its the first run - since this it will be downloaded anyway
  unless @config.first_run?
    unless has_internet?
      check_rsync_image
      # stop if there was an update
      if @newer_image_found
        say_status 'warning', 'One or more images have been updated. Please use "docker-sync clean" before you start docker-sync again', :red
        exit 0
      end
    end
  end

  check_and_warn(@config['update_enforce'])
end
should_run() click to toggle source
# File lib/docker-sync/update_check.rb, line 45
def should_run
  return false unless has_internet?
  now = DateTime.now
  return true if @config['update_last_check'].nil?

  last_check = DateTime.iso8601(@config['update_last_check'])
  check_after_days = 2
  if now - last_check > check_after_days
    return true
  end

  return false
end