Class: UpdateChecker

Inherits:
Object
  • Object
show all
Includes:
Thor::Shell
Defined in:
lib/docker-sync/update_check.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ UpdateChecker

Returns a new instance of UpdateChecker.



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# File 'lib/docker-sync/update_check.rb', line 8

def initialize
  @config = DockerSync::GlobalConfig.load
  @newer_image_found = false
end

Instance Method Details

#check_and_warn(update_enforced = true) ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 84

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 ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 57

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 ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 77

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 ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 70

def get_current_version
  path = File.expand_path('../../../', __FILE__)
  version = File.read("#{path}/VERSION")
  version.strip
  version
end

#has_internet? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/docker-sync/update_check.rb', line 38

def has_internet?
  `ping -c1 -t 1 8.8.8.8 > /dev/null 2>&1`
  return $?.success?
end

#run ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 13

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 ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 43

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