Class: Chef::Knife::CookbookDelete

Inherits:
Chef::Knife show all
Defined in:
lib/chef/knife/cookbook_delete.rb

Constant Summary

Constants inherited from Chef::Knife

DEFAULT_SUBCOMMAND_FILES

Instance Attribute Summary

Attributes inherited from Chef::Knife

#name_args

Instance Method Summary collapse

Methods inherited from Chef::Knife

#ask_question, #bulk_delete, category, #configure_chef, #confirm, #create_object, #delete_object, #edit_data, #edit_object, #file_exists_and_is_readable?, #format_for_display, #format_list_for_display, guess_category, inherited, #initialize, list_commands, load_commands, #load_from_file, #msg, msg, #output, #parse_options, #pretty_print, #rest, run, #show_usage, snake_case_name, #stdin, #stdout, subcommand_category, subcommand_class_from, subcommands, subcommands_by_category, unnamed?

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Constructor Details

This class inherits a constructor from Chef::Knife

Instance Method Details

#ask_which_versions_to_delete ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 92

def ask_which_versions_to_delete
  question = "Which version(s) do you want to delete?\n"
  valid_responses = {}
  available_versions.each_with_index do |version, index|
    valid_responses[(index + 1).to_s] = version
    question << "#{index + 1}. #{@cookbook_name} #{version}\n"
  end
  valid_responses[(available_versions.size + 1).to_s] = :all
  question << "#{available_versions.size + 1}. All versions\n\n"
  responses = ask_question(question).split(',').map { |response| response.strip }
  
  if responses.empty?
    Chef::Log.error("No versions specified, exiting")
    exit(1)
  end
  versions = responses.map do |response|
    if version = valid_responses[response]
      version
    else
      Chef::Log.error("#{response} is not a valid choice, skipping it")
    end
  end
  versions.compact
end

#available_versions ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 81

def available_versions
  @available_versions ||= rest.get_rest("cookbooks/#{@cookbook_name}").values.flatten
rescue Net::HTTPServerException => e
  if e.to_s =~ /^404/
    Chef::Log.error("Cannot find a cookbook named #{@cookbook_name} to delete")
    nil
  else
    raise
  end
end

#delete_all_versions ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 53

def delete_all_versions
  confirm("Do you really want to delete all versions of #{@cookbook_name}")
  delete_all_without_confirmation
end

#delete_all_without_confirmation ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 58

def delete_all_without_confirmation
  # look up the available versions again just in case the user
  # got to the list of versions to delete and selected 'all'
  # and also a specific version
  @available_versions = nil
  Array(available_versions).each do |version|
    delete_version_without_confirmation(version)
  end
end

#delete_explicit_version ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 47

def delete_explicit_version
  delete_object(Chef::CookbookVersion, "#{@cookbook_name} version #{@version}", "cookbook") do
    delete_request("cookbooks/#{@cookbook_name}/#{@version}")
  end
end

#delete_version_without_confirmation(version) ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 117

def delete_version_without_confirmation(version)
  object = delete_request("cookbooks/#{@cookbook_name}/#{version}")
  output(format_for_display(object)) if config[:print_after]
  Chef::Log.info("Deleted cookbook[#{@cookbook_name}][#{version}]")
end

#delete_versions_without_confirmation(versions) ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 123

def delete_versions_without_confirmation(versions)
  versions.each do |version|
    if version == :all
      delete_all_without_confirmation
      break
    else
      delete_version_without_confirmation(version)
    end
  end
end

#delete_without_explicit_version ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 68

def delete_without_explicit_version
  if available_versions.nil?
    # we already logged an error or 2 about it, so just bail
    exit(1)
  elsif available_versions.size == 1
    @version = available_versions.first
    delete_explicit_version
  else
    versions_to_delete = ask_which_versions_to_delete
    delete_versions_without_confirmation(versions_to_delete)
  end
end

#run ⇒ Object 



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# File 'lib/chef/knife/cookbook_delete.rb', line 31

def run
  confirm("Files that are common to multiple cookbooks are shared, so purging the files may disable other cookbooks. Are you sure you want to purge files instead of just deleting the cookbook") if config[:purge]
  @cookbook_name, @version = name_args
  if @cookbook_name && @version
    delete_explicit_version
  elsif @cookbook_name && config[:all]
    delete_all_versions
  elsif @cookbook_name && @version.nil?
    delete_without_explicit_version
  elsif @cookbook_name.nil?
    show_usage
    Chef::Log.fatal("You must provide the name of the cookbook to delete")
    exit(1)
  end
end