source 'https://rubygems.org' gemspec logstash_path = ENV['LOGSTASH_PATH'] || '/usr/local/Cellar/logstash/8.5.0/libexec' if Dir.exist?(logstash_path) gem 'logstash-core', :path => "#{logstash_path}/logstash-core" gem 'logstash-core-plugin-api', :path => "#{logstash_path}/logstash-core-plugin-api" end