ruby-lsp .index.yml excluded_gems generator

.index.yml_generator.rb

require "yaml"
require "bundler"

config_file = ".index.yml"
config = if File.exist?(config_file)
  YAML.load_file(config_file)
else
  {}
end
bundler_gems = Bundler.locked_gems&.specs.map { _1.name }
ruby_gems = Dir.glob(File.join(RbConfig::CONFIG["rubylibdir"], "*")).map { Pathname.new(_1).basename.to_s.delete_suffix(".rb") }
config["excluded_gems"] = (bundler_gems + ruby_gems).uniq.sort
File.open(config_file, "w") { |f| YAML.dump(config, f) }