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For Developers

Updating internal dependencies

  1. Modify the ./python/pip_install/tools/requirements.txt file and run: 
    bazel run //tools/private/update_deps:update_pip_deps
  2. Bump the coverage dependencies using the script using: 
    bazel run //tools/private/update_deps:update_coverage_deps <VERSION>

Releasing

Start from a clean checkout at main.

Before running through the release it's good to run the build and the tests locally, and make sure CI is passing. You can also test-drive the commit in an existing Bazel workspace to sanity check functionality.

Steps

  1. Determine the next semantic version number
  2. Create a tag and push, e.g. git tag 0.5.0 upstream/main && git push upstream --tags NOTE: Pushing the tag will trigger release automation.
  3. Watch the release automation run on https://github.com/bazelbuild/rules_python/actions
  4. Add missing information to the release notes. The automatic release note generation only includes commits associated with issues.

Determining Semantic Version

rules_python is currently using Zero-based versioning and thus backwards-incompatible API changes still come under the minor-version digit. So releases with API changes and new features bump the minor, and those with only bug fixes and other minor changes bump the patch digit.

To find if there were any features added or incompatible changes made, review the commit history. This can be done using github by going to the url: https://github.com/bazelbuild/rules_python/compare/<VERSION>...main.

After release creation in Github

  1. Ping @philwo to get the new release added to mirror.bazel.build. See this comment on issue #400 for more context.
  2. Announce the release in the #python channel in the Bazel slack (bazelbuild.slack.com).

Secrets

PyPI user rules-python

Part of the release process uploads packages to PyPI as the user rules-python. This account is managed by Google; contact rules-python-pyi@google.com if something needs to be done with the PyPI account.