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Process Overview

As part of the Apache governance model, official releases consist of signed source tarballs approved by the DataFusion PMC.

We then use the code in the approved artifacts to release to crates.io.

Change Log

We maintain a CHANGELOG.md so our users know what has been changed between releases.

You will need a GitHub Personal Access Token for the following steps. Follow these instructions to generate one if you do not already have one.

The changelog is generated using a Python script which needs PyGitHub, installed using pip:

pip3 install PyGitHub

To generate the changelog, set the GITHUB_TOKEN environment variable to a valid token and then run the script providing two commit ids or tags followed by the version number of the release being created. The following example generates a change log of all changes between the first commit and the current HEAD revision.

export GITHUB_TOKEN=<your-token-here>
python ./dev/release/generate-changelog.py v0.51.0 HEAD 0.52.0 > changelog/0.52.0.md

This script creates a changelog from GitHub PRs based on the labels associated with them as well as looking for titles starting with feat:, fix:, or docs:.

Add an entry to CHANGELOG.md for the new version

Prepare release commits and PR

Update Version

Checkout the main commit to be released

git fetch apache
git checkout apache/main

Manually update the version in the root Cargo.toml to the release version (e.g. 0.52.0).

Lastly commit the version change:

git commit -a -m 'Update version'

Prepare release candidate artifacts

After the PR gets merged, you are ready to create release artifacts from the merged commit.

(Note you need to be a committer to run these scripts as they upload to the apache svn distribution servers)

Pick a Release Candidate (RC) number

Pick numbers in sequential order, with 0 for rc0, 1 for rc1, etc.

Create git tag for the release:

While the official release artifacts are signed tarballs and zip files, we also tag the commit it was created for convenience and code archaeology.

Using a string such as v0.52.0 as the <version>, create and push the tag by running these commands:

For example to tag version 0.52.0

git fetch apache
git tag v0.52.0-rc1 apache/main
# push tag to Github remote
git push apache v0.52.0-rc1

Create, sign, and upload artifacts

Run create-tarball.sh with the <version> tag and <rc> and you found in previous steps:

GITHUB_TOKEN=<TOKEN> ./dev/release/create-tarball.sh 0.52.0 1

The create-tarball.sh script

  1. creates and uploads all release candidate artifacts to the datafusion dev location on the apache distribution svn server

  2. provide you an email template to send to [email protected] for release voting.

Vote on Release Candidate artifacts

Send the email output from the script to [email protected].

For the release to become "official" it needs at least three PMC members to vote +1 on it.

Verifying Release Candidates

The dev/release/verify-release-candidate.sh is a script in this repository that can assist in the verification process. Run it like:

./dev/release/verify-release-candidate.sh 0.52.0 1

If the release is not approved

If the release is not approved, fix whatever the problem is, merge changelog changes into main if there is any and try again with the next RC number.

Finalize the release

NOTE: steps in this section can only be done by PMC members.

After the release is approved

Move artifacts to the release location in SVN, using the release-tarball.sh script:

./dev/release/release-tarball.sh 0.52.0 1

Promote the rc tag to the release tag

git tag v0.52.0 v0.52.0-rc3
git push apache v0.52.0

Congratulations! The release is now official!

Publish on Crates.io

Only approved releases of the tarball should be published to crates.io, in order to conform to Apache Software Foundation governance standards.

A DataFusion committer can publish this crate after an official project release has been made to crates.io using the following instructions.

Follow these instructions to create an account and login to crates.io before asking to be added as an owner to the sqlparser DataFusion crates.

Download and unpack the official release tarball

Verify that the Cargo.toml in the tarball contains the correct version (e.g. version = "0.52.0") and then publish the crates by running the following commands

cargo publish

If necessary, also publish the sqlparser_derive crate:

crates.io homepage: https://crates.io/crates/sqlparser_derive

(cd derive && cargo publish