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CONTRIBUTING.md

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How to Contribute

We'd love to accept your patches and contributions to this project. There are just a few small guidelines you need to follow.

Contributor License Agreement

Contributions to this project must be accompanied by a Contributor License Agreement. You (or your employer) retain the copyright to your contribution; this simply gives us permission to use and redistribute your contributions as part of the project. Head over to https://cla.developers.google.com/ to see your current agreements on file or to sign a new one.

You generally only need to submit a CLA once, so if you've already submitted one (even if it was for a different project), you probably don't need to do it again.

Code reviews

All submissions, including submissions by project members, require review. We use GitHub pull requests for this purpose. Consult GitHub Help for more information on using pull requests.

Community Guidelines

This project follows Google's Open Source Community Guidelines.

Tests

Functional tests

We have functional tests for individual components that can be run by

bundle exec rake test

ActiveRecord integration tests

We run full integration tests with continuous integration on Google Cloud Build with Kokoro.

Command : bundle exec rake acceptance[project,keyfile,instance]

Variable Description Comment
project The project id of the Google Application credentials being used For example appdev-soda-spanner-staging
keyfile The Google Application Credentials file For example ~/Downloads/creds.json
instance The Cloud Spanner instance to use, it MUST exist before running tests For example
activerecord_tests

Example

bundle exec rake acceptance[appdev-soda-spanner-staging,/home/Downloads/creds.json,activerecord_tests]

You can also use the Cloud Spanner emulator.

docker run -d --rm -p 9010:9010 gcr.io/cloud-spanner-emulator/emulator
export SPANNER_EMULATOR_HOST=localhost:9010
bundle exec rake "acceptance[dummy-project,,dummy-instance,]"

If you want to run only one test, you can specify a test file.

bundle exec rake "acceptance[dummy-project,,dummy-instance,]" \
  TEST=acceptance/cases/models/default_value_test.rb

Coding Style

Please follow the established coding style in the library. The style is is largely based on The 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)

You can check your code against these rules by running Rubocop like so:

$ cd ruby-spanner-activerecord
$ bundle exec rubocop

The rubocop settings depend on googleapis/ruby-style, in addition to .rubocop.yml.

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 Code of Conduct for more information.