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RELEASE_PROCESS.md

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Our Release Process

Notes

BigchainDB follows the Python form of Semantic Versioning (i.e. MAJOR.MINOR.PATCH), which is almost identical to regular semantic versioning, but there's no hyphen, e.g.

  • 0.9.0 for a typical final release
  • 4.5.2a1 not 4.5.2-a1 for the first Alpha release
  • 3.4.5rc2 not 3.4.5-rc2 for Release Candidate 2

Note 1: For Git tags (which are used to identify releases on GitHub), we append a v in front. For example, the Git tag for version 2.0.0a1 was v2.0.0a1.

We use 0.9 and 0.9.0 as example version and short-version values below. You should replace those with the correct values for your new version.

We follow BEP-1, which is our variant of C4, the Collective Code Construction Contract, so a release is just a tagged commit on the master branch, i.e. a label for a particular Git commit.

The following steps are what we do to release a new version of BigchainDB Python Driver.

Steps

  1. Create a pull request where you make the following changes:

    • Update CHANGELOG.md
    • In bigchaindb-driver/__init__.py:
      • update __version__ to e.g. 0.9.0 (with no .dev on the end)
    • In setup.py update the version and maybe update the development status item in the classifiers list. For example, one allowed value is "Development Status :: 5 - Production/Stable". The allowed values are listed at pypi.python.org.
    • In README.rst update the Compatibility Matrix

  2. Wait for all the tests to pass!

  3. Merge the pull request into the master branch.

  4. Go to the bigchaindb/bigchaindb-driver Releases page on GitHub and click the "Draft a new release" button.

  5. Fill in the details:

    • Tag version: version number preceded by v, e.g. v0.9.1
    • Target: the last commit that was just merged. In other words, that commit will get a Git tag with the value given for tag version above.
    • Title: Same as tag version above, e.g v0.9.1
    • Description: The body of the changelog entry (Added, Changed, etc.)

  6. Click "Publish release" to publish the release on GitHub.

  7. On your local computer, make sure you're on the master branch and that it's up-to-date with the master branch in the bigchaindb/bigchaindb-driver repository (e.g. git pull upstream). We're going to use that to push a new bigchaindb-driver package to PyPI.

  8. Make sure you have a ~/.pypirc file containing credentials for PyPI or just enter them manually.

  9. Do make release to build and publish the new bigchaindb-driver package on PyPI. For this step you need to have twine installed. If you get an error like Makefile:116: recipe for target 'clean-pyc' failed then try doing

    sudo chown -R $(whoami):$(whoami) .

  10. Log in to readthedocs.org and go to the BigchainDB Python Driver project, then:

    • Click on "Builds", select "latest" from the drop-down menu, then click the "Build Version:" button.
    • Wait for the build of "latest" to finish. This can take a few minutes.
    • Go to Admin --> Advanced Settings and make sure that "Default branch:" (i.e. what "latest" points to) is set to the new release's tag, e.g. v0.9.1. (It won't be an option if you didn't wait for the build of "latest" to finish.) Then scroll to the bottom and click "Save".
    • Go to Admin --> Versions and under Choose Active Versions, do these things:
      1. Make sure that the new version's tag is "Active" and "Public"
      2. Make sure the stable branch is not active.
      3. Scroll to the bottom of the page and click "Save".

Congratulations, you have released a new version of BigchainDB Python Driver!

Post-Release Steps

Update the BigchainDB Python Driver version in the acceptance/python/Dockerfile in the BigchainDB Server.