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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.

Running Tests

Bigtable integration tests can either be run against an emulator or a real Bigtable instance. The target environment can be selected by setting a maven profile. By default it is set to bigtable-emulator-it and other options are bigtable-prod-it and bigtable-directpath-it.

To use the bigtable-prod-it and bigtable-directpath-it environments:

  1. Set up the target table using scripts/setup-test-table.sh
  2. Download the JSON service account credentials file from the Google Developer's Console.
  3. Set the environment variable GOOGLE_APPLICATION_CREDENTIALS to the path of the credentials file
  4. Enable the profile and the system properties bigtable.project, bigtable.instance and bigtable.table to created earlier. Example:
 mvn verify \
-P bigtable-prod-it \
-Dbigtable.project=my-project
-Dbigtable.instance=my-instance
-Dbigtable.table=my-table

While developing, it might be helpful to separate running unit tests from integration tests.

# To skip integration tests:
mvn install -DskipITs

# To skip unit tests
mvn install -DskipUnitTests

# To skip all tests
mvn install -DskipTests