yaml

test_list_comments.rb

#!/usr/bin/env ruby

require "psych"
require "psych/pure"

yaml_source = <<~YAML
  hierarchy:
    - name: "osfamily/major release"
      paths:
        # Comment above first item
        - "path/one.yaml"
        - "path/two.yaml"
        # Comment above third item
        - path/three.yaml
    - name: "osfamily"
      paths:
        - "path/four.yaml"
        - "path/five.yaml"
YAML

puts "=== Original YAML ==="
puts yaml_source

config =
  Psych::Pure.load(
    yaml_source,
    comments: true,
    aliases: true,
    permitted_classes: [Symbol, Date, Time, Set]
  )

puts "\n=== After Load + Dump ==="
dumped = Psych::Pure.dump(config)
puts dumped