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# frozen_string_literal: true
module Gitlab
module Ci
class Config
module Yaml
module Tags
class Reference < Base
MissingReferenceError = Class.new(Tags::TagError)
def self.tag
'!reference'
end
override :valid?
def valid?
data[:seq].is_a?(Array) &&
!data[:seq].empty? &&
data[:seq].all?(String)
end
private
def location
data[:seq].to_a.map(&:to_sym)
end
override :_resolve
def _resolve(resolver)
object = config_at_location(resolver)
value = resolver.deep_resolve(object)
raise MissingReferenceError, missing_ref_error_message unless value
value
end
def config_at_location(resolver)
resolver.config.dig(*location)
rescue TypeError
raise MissingReferenceError, missing_ref_error_message
end
def missing_ref_error_message
"#{data[:tag]} #{data[:seq].inspect} could not be found"
end
end
end
end
end
end
end
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