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Contributing to Elasticsearch Ruby

This guide assumes Ruby is already installed. We follow Ruby’s own maintenance policy and officially support all currently maintained versions per Ruby Maintenance Branches. So we can't guarantee the code works for versions of Ruby that have reached their end of life.

To work on the code, clone and bootstrap the project first:

$ git clone https://github.com/elasticsearch/elasticsearch-ruby.git
$ cd elasticsearch-ruby/
$ bundle exec rake bundle

This will run bundle install in all subprojects.

Interactive shell

You can run the client code right away in a Interactive Ruby Shell by running the following command from the project's root directory:

$ ./elasticsearch/bin/elastic_ruby_console
[1] elastic_ruby(main)> client = Elasticsearch::Client.new(host: 'http://elastic:changeme@localhost:9200', log: true)
[2] elastic_ruby(main)> client.info

This will use either irb or pry and load the elasticsearch and elasticsearch-api gems into the shell.

Tests

To run the tests, you need to start a testing cluster on port 9200. We suggest using Docker, there's a Rake task to start a testing cluster in a Docker container. You need to use a value for VERSION that matches a version string from our artifacts API:

rake docker:start[VERSION]

E.g.: rake docker:start[8.0-SNAPSHOT]. To start the container with Platinum, pass it in as a parameter: rake docker:start[7.x-SNAPSHOT,platinum].

There's another rake task that will read the STACK_VERSION value from .buildkite/pipeline.yml and run that version of Elasticsearch: rake es:up.

If you get this error when running the script:

max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]

Check this link for instructions on how to fix it.

As mentioned, the tests will atempt to run against http://localhost:9200 by default. We provide the Docker task for the test cluster and recommend using it. But you can provide a different test server of your own. If you're using a different host or port, set the TEST_ES_SERVER environment variable with the server information. E.g.:

$ TEST_ES_SERVER='http://localhost:9250' be rake test:client

To run all the tests in all the subprojects, use the Rake task:

time rake test:client

Elasticsearch Rest API YAML Test Runner

See the API Spec tests README.

Contributing

The process for contributing to any of the Elasticsearch repositories is similar:

  1. It is best to do your work in a separate Git branch. This makes it easier to synchronise your changes with rebase.

  2. Make sure your changes don't break any existing tests, and that you add tests for both bugfixes and new functionality. If you want to examine the test coverage, you can generate a report by running COVERAGE=true rake test:all.

  3. Sign the contributor license agreement. Please make sure you have signed the Contributor License Agreement. We are not asking you to assign copyright to us, but to give us the right to distribute your code without restriction. We ask this of all contributors in order to assure our users of the origin and continuing existence of the code. You only need to sign the CLA once.

  4. Submit a pull request. Push your local changes to your forked copy of the repository and submit a pull request. In the pull request, describe what your changes do and mention the number of the issue where discussion has taken place, eg “Closes #123″.