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RELEASING.md

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Releasing RE2/J to Maven Central

This document describes the process for releasing RE2/J binary artifacts to Maven Central and to the RE2/J GitHub site.

Prerequisites

The following are one-time setup steps. You must have:

  • git
  • an account on OSSRH, see the initial setup section of the OSSRH guide
  • access to the com.google.re2 OSSRH repository. For this, you should request access by filing a JIRA ticket with the OSSRH folks
  • a GPG key (see below)

GPG key

You must create a GPG key for signing the RE2/J artifact. The key must be published to one of the GPG keyservers, otherwise Sonatype will reject the RE2/J artifact.

$ gpg --gen-key

... follow the prompts

$ gpg --list-keys
/home/sjr/.gnupg/pubring.kbx
----------------------------
pub   rsa3072 2022-06-30 [SC] [expires: 2024-06-29]
      ABCDEF01234567890ABCDEF01234567890ABCDEF
uid           [ultimate] Your Name <your@email.com>
sub   rsa3072 2022-06-30 [E] [expires: 2024-06-29]

# Now send the key to the keyservers

$ gpg --keyserver keys.openpgp.org --send-keys 90ABCDEF
gpg: sending key 1234567890ABCDEF to hkp://keys.openpgp.org

Making the release

In a shell, change into the RE2/J source code root directory (the one containing build.gradle). Then:

  • edit build.gradle and set version to the name of the next release (e.g. "1.8").
  • change the download instructions in README.md to reflect the new version number
  • git commit the version name change
  • git tag re2j-<versionName>, e.g. git tag re2j-1.8
  • git push --tags

Now you're ready to build and push the release.

./gradlew -Psonatype.username='sonatypeUsername' -Psonatype.password='sonatypeApiKey' \
        clean bintrayUpload

Once successful, the new version needs to be published:

  1. Log into the Sonatype Nexus frontend
  2. Click on "Staging Repositories" on the left
  3. Select the latest staging repository, click "Close"
  4. If all of the repository checks pass, the repository will be closed. You can now click "Release". This will send the artifact out to Maven Central, ready for people to use.

As a convenience to our users, you should also publish the sources, javadoc and artifact JARs as GitHub releases.

After this is all done, make an announcement on re2j-discuss@googlegroups.com.

Problems

If you encounter issues, please reach out to the mailing list at re2j-discuss@googlegroups.com.