Showcase of fastlane lanes to update yaml CHANGELOG file as yaml

gistfile1.rb

lane :put_upcoming_to_releases do
  changelog_data = get_changelog_data
  upcoming = changelog_data["upcoming"].clone
  changelog_data["upcoming"]["version"] = nil
  changelog_data["upcoming"]["notes"] = nil
  if changelog_data["releases"].count > 0
    changelog_data["releases"].unshift(upcoming)
  else
    changelog_data["releases"].push(upcoming)
  end
  save_changelog_data(
    changelog_data: changelog_data
  )
  git_commit_shell(
    message: "Move upcoming version to releases in CHANGELOG"
  )
end
 
private_lane :get_changelog_data do
  changelog_data = YAML.load(File.open "../CHANGELOG.yml")
  changelog_data
end

private_lane :save_changelog_data do |options|
  changelog_data = options[:changelog_data]
  File.open("../CHANGELOG.yml", 'w') { |f| YAML.dump(changelog_data, f) }
end

private_lane :get_releases do
  changelog_data = get_changelog_data
  releases = changelog_data["releases"]
  releases
end

private_lane :get_upcoming do
  changelog_data = get_changelog_data
  upcoming = changelog_data["upcoming"]
  upcoming
end

private_lane :get_upcoming_version do
  upcoming = get_upcoming
  upcoming_version = upcoming["version"]
  upcoming_version
end

private_lane :get_upcoming_notes do
  upcoming = get_upcoming
  upcoming_notes =  "* #{upcoming["notes"].join "\n* "} \n\n"
  upcoming_notes
end