73 lines
1.5 KiB
Ruby
73 lines
1.5 KiB
Ruby
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# frozen_string_literal: true
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module Gitlab
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module Ci
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module Interpolation
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##
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# Interpolation::Context is a class that represents the data that can be used when performing string interpolation
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# on a CI configuration.
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#
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class Context
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ContextTooComplexError = Class.new(StandardError)
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NotSymbolizedContextError = Class.new(StandardError)
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MAX_DEPTH = 3
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def initialize(hash)
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@context = hash
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raise ContextTooComplexError if depth > MAX_DEPTH
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end
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def valid?
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errors.none?
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end
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##
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# This method is here because `Context` will be responsible for validating specs, inputs and defaults.
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#
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def errors
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[]
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end
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def depth
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deep_depth(@context)
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end
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def fetch(field)
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@context.fetch(field)
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end
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def to_h
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@context.to_h
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end
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private
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def deep_depth(context, depth = 0)
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values = context.values.map do |value|
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if value.is_a?(Hash)
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deep_depth(value, depth + 1)
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else
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depth + 1
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end
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end
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values.max
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end
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def self.fabricate(context)
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case context
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when Hash
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new(context)
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when Interpolation::Context
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context
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else
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raise ArgumentError, 'unknown interpolation context'
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end
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end
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end
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end
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end
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end
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