class ChefZero::Endpoints::CookbookVersionEndpoint

/cookbooks/NAME/VERSION

Public Instance Methods

delete(request) click to toggle source
Calls superclass method
# File lib/chef_zero/endpoints/cookbook_version_endpoint.rb, line 53
def delete(request)
  if request.rest_path[4] == "_latest" || request.rest_path[4] == "latest"
    request.rest_path[4] = latest_version(list_data(request, request.rest_path[0..3]))
  end

  deleted_cookbook = get_data(request)

  response = super(request)
  cookbook_name = request.rest_path[3]
  if exists_data_dir?(request, request.rest_path[0..1] + [ 'cookbooks', cookbook_name ]) && list_data(request, request.rest_path[0..1] + ['cookbooks', cookbook_name]).size == 0
    delete_data_dir(request, request.rest_path[0..1] + ['cookbooks', cookbook_name])
  end

  # Hoover deleted files, if they exist
  hoover_unused_checksums(get_checksums(deleted_cookbook), request)
  response
end
get(request) click to toggle source
Calls superclass method
# File lib/chef_zero/endpoints/cookbook_version_endpoint.rb, line 11
def get(request)
  if request.rest_path[4] == "_latest" || request.rest_path[4] == "latest"
    request.rest_path[4] = latest_version(list_data(request, request.rest_path[0..3]))
  end
  super(request)
end
get_checksums(cookbook) click to toggle source
# File lib/chef_zero/endpoints/cookbook_version_endpoint.rb, line 71
def get_checksums(cookbook)
  result = []
  JSON.parse(cookbook, :create_additions => false).each_pair do |key, value|
    if value.is_a?(Array)
      value.each do |file|
        if file.is_a?(Hash) && file.has_key?('checksum')
          result << file['checksum']
        end
      end
    end
  end
  result.uniq
end
put(request) click to toggle source
# File lib/chef_zero/endpoints/cookbook_version_endpoint.rb, line 18
def put(request)
  name = request.rest_path[3]
  version = request.rest_path[4]
  existing_cookbook = get_data(request, request.rest_path, :nil)

  # Honor frozen
  if existing_cookbook
    existing_cookbook_json = JSON.parse(existing_cookbook, :create_additions => false)
    if existing_cookbook_json['frozen?']
      if request.query_params['force'] != "true"
        raise RestErrorResponse.new(409, "The cookbook #{name} at version #{version} is frozen. Use the 'force' option to override.")
      end
      # For some reason, you are forever unable to modify "frozen?" on a frozen cookbook.
      request_body = JSON.parse(request.body, :create_additions => false)
      if !request_body['frozen?']
        request_body['frozen?'] = true
        request.body = JSON.pretty_generate(request_body)
      end
    end
  end

  # Set the cookbook
  set_data(request, request.rest_path[0..1] + ['cookbooks', name, version], request.body, :create_dir, :create)

  # If the cookbook was updated, check for deleted files and clean them up
  if existing_cookbook
    missing_checksums = get_checksums(existing_cookbook) - get_checksums(request.body)
    if missing_checksums.size > 0
      hoover_unused_checksums(missing_checksums, request)
    end
  end

  already_json_response(existing_cookbook ? 200 : 201, populate_defaults(request, request.body))
end

Private Instance Methods

hoover_unused_checksums(deleted_checksums, request) click to toggle source
# File lib/chef_zero/endpoints/cookbook_version_endpoint.rb, line 87
def hoover_unused_checksums(deleted_checksums, request)
  data_store.list(request.rest_path[0..1] + ['cookbooks']).each do |cookbook_name|
    data_store.list(request.rest_path[0..1] + ['cookbooks', cookbook_name]).each do |version|
      cookbook = data_store.get(request.rest_path[0..1] + ['cookbooks', cookbook_name, version], request)
      deleted_checksums = deleted_checksums - get_checksums(cookbook)
    end
  end
  deleted_checksums.each do |checksum|
    # There can be a race here if multiple cookbooks are uploading.
    # This deals with an exception on delete, but things can still get deleted
    # that shouldn't be.
    begin
      data_store.delete(request.rest_path[0..1] + ['file_store', 'checksums', checksum])
    rescue ChefZero::DataStore::DataNotFoundError
    end
  end
end
latest_version(versions) click to toggle source
# File lib/chef_zero/endpoints/cookbook_version_endpoint.rb, line 112
def latest_version(versions)
  sorted = versions.sort_by { |version| Gem::Version.new(version.dup) }
  sorted[-1]
end
populate_defaults(request, response_json) click to toggle source
# File lib/chef_zero/endpoints/cookbook_version_endpoint.rb, line 105
def populate_defaults(request, response_json)
  # Inject URIs into each cookbook file
  cookbook = JSON.parse(response_json, :create_additions => false)
  cookbook = DataNormalizer.normalize_cookbook(self, request.rest_path[0..1], cookbook, request.rest_path[3], request.rest_path[4], request.base_uri, request.method)
  JSON.pretty_generate(cookbook)
end