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# frozen_string_literal: true
module Gitlab
module Config
module Loader
class MultiDocYaml
include Gitlab::Utils::StrongMemoize
MULTI_DOC_DIVIDER = /^---\s+/.freeze
def initialize(config, max_documents:, additional_permitted_classes: [], reject_empty: false)
@config = config
@max_documents = max_documents
@additional_permitted_classes = additional_permitted_classes
@reject_empty = reject_empty
end
def valid?
documents.all?(&:valid?)
end
def load_raw!
documents.map(&:load_raw!)
end
def load!
documents.map(&:load!)
end
private
attr_reader :config, :max_documents, :additional_permitted_classes, :reject_empty
# Valid YAML files can start with either a leading delimiter or no delimiter.
# To avoid counting a leading delimiter towards the document limit,
# this method splits the file by one more than the maximum number of permitted documents.
# It then discards the first document if it is blank.
def documents
docs = config
.split(MULTI_DOC_DIVIDER, max_documents_including_leading_delimiter)
.map { |d| Yaml.new(d, additional_permitted_classes: additional_permitted_classes) }
docs.shift if docs.first.blank?
docs.reject!(&:blank?) if reject_empty
docs
end
strong_memoize_attr :documents
def max_documents_including_leading_delimiter
max_documents + 1
end
end
end
end
end
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