Module: YAMLTools

Defined in:
lib/yaml_tools.rb,
lib/tools/combine.rb,
lib/tools/compare.rb,
lib/tools/utility.rb

Defined Under Namespace

Classes: Combiner, Comparer

Class Method Summary collapse

Class Method Details

.createDocument(levels) ⇒ Object 



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# File 'lib/tools/utility.rb', line 4

def self.createDocument(levels)
  document = Psych::Nodes::Document.new()
  documentRoot = Psych::Nodes::Mapping.new();
  documentRoot.children.push(*levels)
  document.children << documentRoot

  stream = Psych::Nodes::Stream.new
  stream.children << document
  output = stream.to_yaml

  # Remove initial document start
  output.slice!(0, 4) if (output.start_with?("---\n"))

  output
end

.flatten_merge_keys(s) ⇒ Object 



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# File 'lib/tools/utility.rb', line 20

def self.flatten_merge_keys(s)
  level = []

  sourceChildren = s.each_slice(2).to_a

  mergeKeys = sourceChildren.find_all {|i| i[0].value == "<<" }

  if (mergeKeys.length > 0) then
    if (mergeKeys.length == 1) then
      # Add merge key
      level << mergeKeys.first[0]
      level << mergeKeys.first[1]
    else
      newSequence = Psych::Nodes::Sequence.new(nil, nil, true, Psych::Nodes::Sequence::FLOW)

      mergeKeys.each {|m|
        if (m[1].is_a?(Psych::Nodes::Alias)) then
          newSequence.children << m[1]
        elsif (m[1].is_a?(Psych::Nodes::Sequence)) then
          newSequence.children.concat(m[1].children)
        end
      }

      level << Psych::Nodes::Scalar.new("<<")
      level << newSequence
    end
  end

  sourceChildren.each {|sourcePair|
    sourceKey = sourcePair[0]
    sourceValue = sourcePair[1]

    if (sourceValue.is_a?(Psych::Nodes::Mapping)) then
      childLevel = flatten_merge_keys(sourceValue.children)

      newMapping = Psych::Nodes::Mapping.new(sourceValue.anchor, sourceValue.tag, sourceValue.implicit, sourceValue.style)

      if (childLevel.length > 0) then
        newMapping.children.push(*childLevel)
      end

      level << sourceKey
      level << newMapping
    else
      if (sourceKey.value != "<<") then
        level << sourceKey
        level << sourceValue
      end
    end
  }

  level
end