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 10

def initialize
  @config = DockerSyncConfig::global_config
  @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 87

def check_and_warn(update_enforced = true)
  # update the timestamp
  now = DateTime.now
  @config['update_last_check'] = now.iso8601(9)

  DockerSyncConfig::global_config_save(@config)

  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?")
      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/wiki/5.-Changelog',:green
      exit 0
    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 51

def check_rsync_image
  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

#check_unison_image ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 63

def check_unison_image
  say_status 'ok','Checking if a newer unison image is available'

  if system("docker pull eugenmayer/unison | grep 'Downloaded newer image for'")
    say_status 'ok', 'Downloaded newer image for unison', :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 80

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 75

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

#run ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 15

def run
  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 DockerSyncConfig::is_first_run
    check_rsync_image
    check_unison_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

  check_and_warn(@config['update_enforce'])
end

#should_run ⇒ Object 



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# File 'lib/docker-sync/update_check.rb', line 40

def should_run
  now = DateTime.now
  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