Class: Kube::Ctl::CommandTree

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/kube/ctl/command_tree.rb

Defined Under Namespace

Classes: Evaluation

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tree_data) ⇒ CommandTree

Returns a new instance of CommandTree.



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# File 'lib/kube/ctl/command_tree.rb', line 23

def initialize(tree_data)
  @tree_data = tree_data
end

Instance Attribute Details

#tree ⇒ Object (readonly)

Returns the value of attribute tree.



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# File 'lib/kube/ctl/command_tree.rb', line 17

def tree
  @tree
end

Class Method Details

.from_file(path) ⇒ Object 



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# File 'lib/kube/ctl/command_tree.rb', line 19

def self.from_file(path)
  new(JSON.parse(File.read(path)))
end

Instance Method Details

#each {|@tree_data| ... } ⇒ Object

Yields:

  • (@tree_data) 


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# File 'lib/kube/ctl/command_tree.rb', line 27

def each
  yield @tree_data
end

#evaluate(string_builder, resource_dataset: nil) ⇒ Object 



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# File 'lib/kube/ctl/command_tree.rb', line 31

def evaluate(string_builder, resource_dataset: nil)
  units = extract_units(string_builder)
  resources = []
  command_tokens = []
  flags = []
  errors = []

  command_cursor = children_of(@tree_data)

  in_command_phase = true
  command_ended = false
  pending_flag_arg = false
  resource_set = resource_dataset ? normalize_resource_set(resource_dataset) : nil
  resource_parts = []

  units.each do |unit|
    if unit[:type] == :separator
      resource_parts.last[:separator] = unit[:value] unless resource_parts.empty?
      next
    end

    token = unit[:value]
    args = unit[:args]
    rendered = unit[:rendered] || render_token(token)

    if in_command_phase
      if command_cursor.key?(token)
        command_tokens << token
        command_cursor = children_of(command_cursor[token])
        next
      end

      in_command_phase = false
      command_ended = true
      if command_tokens.empty?
        errors << "invalid command start: `#{token}`"
      end
    end

    if pending_flag_arg && !token.start_with?("-")
      flags[-1] = "#{flags[-1]} #{rendered}"
      pending_flag_arg = false
      next
    end

    if token.start_with?("-")
      flags << rendered
      pending_flag_arg = true
      next
    end

    if args.any?
      if args.length == 1 && args[0] == true
        flags << "--#{render_flag(token)}"
      else
        flags << "--#{render_flag(token)} #{render_token(token, args).split(" ", 2).last}"
      end
      next
    end

    separator = resource_parts.empty? ? nil : "."
    resource_parts << { value: rendered, separator: separator }
  end

  if command_ended
    resource = serialize_resource(resource_parts)
    resources << resource unless resource.empty?

    if resource_set && !resource_set.empty? && !resource_set.include?(resource)
      errors << "unknown resource: `#{resource}`"
    end
  end

  rendered_resources = resources.map { |resource| render_resource(resource) }
  rendered_flags = flags.map { |flag| flag.start_with?("--output ") ? flag.sub("--output ", "-o ") : flag }
  rendered = [command_tokens.join(" "), rendered_resources.join(" "), rendered_flags.join(" ")].reject(&:empty?).join(" ")

  Evaluation.new(
    command_tokens,
    resources,
    flags,
    errors,
    rendered,
    errors.empty?
  )
end