# Contributing to Google Cloud Translation 1. **Sign one of the contributor license agreements below.** 2. Fork the repo, develop and test your code changes. 3. Send a pull request. ## Contributor License Agreements Before we can accept your pull requests you'll need to sign a Contributor License Agreement (CLA): - **If you are an individual writing original source code** and **you own the intellectual property**, then you'll need to sign an [individual CLA](https://developers.google.com/open-source/cla/individual). - **If you work for a company that wants to allow you to contribute your work**, then you'll need to sign a [corporate CLA](https://developers.google.com/open-source/cla/corporate). You can sign these electronically (just scroll to the bottom). After that, we'll be able to accept your pull requests. ## Setup In order to use the google-cloud-translate console and run the project's tests, there is a small amount of setup: 1. Install Ruby. google-cloud-translate requires Ruby 2.3+. You may choose to manage your Ruby and gem installations with [RVM](https://rvm.io/), [rbenv](https://github.com/rbenv/rbenv), or [chruby](https://github.com/postmodern/chruby). 2. Install [Bundler](http://bundler.io/). ```sh $ gem install bundler ``` 3. Install the top-level project dependencies. ```sh $ bundle install ``` 4. Install the Translation dependencies. ```sh $ cd google-cloud-translate/ $ bundle exec rake bundleupdate ``` ## Console In order to run code interactively, you can automatically load google-cloud-translate and its dependencies in IRB. This requires that your developer environment has already been configured by following the steps described in the {file:AUTHENTICATION.md Authentication Guide}. An IRB console can be created with: ```sh $ cd google-cloud-translate/ $ bundle exec rake console ``` ## Translation Tests Tests are very important part of google-cloud-translate. All contributions should include tests that ensure the contributed code behaves as expected. To run the unit tests, documentation tests, and code style checks together for a package: ``` sh $ cd google-cloud-translate/ $ bundle exec rake ci ``` To run the command above, plus all acceptance tests, use `rake ci:acceptance` or its handy alias, `rake ci:a`. ### Translation Unit Tests The project uses the [minitest](https://github.com/seattlerb/minitest) library, including [specs](https://github.com/seattlerb/minitest#specs), [mocks](https://github.com/seattlerb/minitest#mocks) and [minitest-autotest](https://github.com/seattlerb/minitest-autotest). To run the Translation unit tests: ``` sh $ cd google-cloud-translate/ $ bundle exec rake test ``` ### Translation Documentation Tests The project tests the code examples in the gem's [YARD](https://github.com/lsegal/yard)-based documentation. The example testing functions in a way that is very similar to unit testing, and in fact the library providing it, [yard-doctest](https://github.com/p0deje/yard-doctest), is based on the project's unit test library, [minitest](https://github.com/seattlerb/minitest). To run the Translation documentation tests: ``` sh $ cd google-cloud-translate/ $ bundle exec rake doctest ``` If you add, remove or modify documentation examples when working on a pull request, you may need to update the setup for the tests. The stubs and mocks required to run the tests are located in `support/doctest_helper.rb`. Please note that much of the setup is matched by the title of the [`@example`](http://www.rubydoc.info/gems/yard/file/docs/Tags.md#example) tag. If you alter an example's title, you may encounter breaking tests. ### Translation Acceptance Tests The Translation acceptance tests interact with the live service API. Follow the instructions in the {file:AUTHENTICATION.md Authentication guide} for enabling the Translation API. Occasionally, some API features may not yet be generally available, making it difficult for some contributors to successfully run the entire acceptance test suite. However, please ensure that you do successfully run acceptance tests for any code areas covered by your pull request. To run the acceptance tests, first create and configure a project in the Google Developers Console, as described in the {file:AUTHENTICATION.md Authentication guide}. Be sure to download the JSON KEY file. Make note of the PROJECT_ID and the KEYFILE location on your system. Before you can run the Translation acceptance tests, you must first create indexes used in the tests. #### Running the Translation acceptance tests To run the Translation acceptance tests: ``` sh $ cd google-cloud-translate/ $ bundle exec rake acceptance[\\{my-project-id},\\{/path/to/keyfile.json}] ``` Or, if you prefer you can store the values in the `GCLOUD_TEST_PROJECT` and `GCLOUD_TEST_KEYFILE` environment variables: ``` sh $ cd google-cloud-translate/ $ export GCLOUD_TEST_PROJECT=\\{my-project-id} $ export GCLOUD_TEST_KEYFILE=\\{/path/to/keyfile.json} $ bundle exec rake acceptance ``` If you want to use a different project and credentials for acceptance tests, you can use the more specific `TRANSLATE_TEST_PROJECT` and `TRANSLATE_TEST_KEYFILE` environment variables: ``` sh $ cd google-cloud-translate/ $ export TRANSLATE_TEST_PROJECT=\\{my-project-id} $ export TRANSLATE_TEST_KEYFILE=\\{/path/to/keyfile.json} $ bundle exec rake acceptance ``` ## Coding Style Please follow the established coding style in the library. The style is is largely based on [The Ruby Style Guide](https://github.com/bbatsov/ruby-style-guide) with a few exceptions based on seattle-style: * Avoid parenthesis when possible, including in method definitions. * Always use double quotes strings. ([Option B](https://github.com/bbatsov/ruby-style-guide#strings)) You can check your code against these rules by running Rubocop like so: ```sh $ cd google-cloud-translate/ $ bundle exec rake rubocop ``` ## Code of Conduct Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. See {file:CODE_OF_CONDUCT.md Code of Conduct} for more information.