From documentation at https://www.elastic.co/guide/en/logstash/current/_how_to_write_a_logstash_output_plugin.html
source 'https://rubygems.org'
gemspec
gem "logstash", :github => "elastic/logstash", :branch => "6.2"
But when doing bundle install
:
Fetching git://github.com/elastic/logstash.git
Fetching gem metadata from https://rubygems.org/.........
Could not find gem 'logstash' in git://github.com/elastic/logstash.git (at
6.2@60f9c7e).
The source does not contain any versions of 'logstash'
Is it a typo?