Bump bazelbuild/continuous-integration/actions/bcr-pr-reviewer from 88343b58ed92860f43faeabd6c41e16b0aac57b6 to bf4dd844ae33da5f11cf592b39142ad285dac7f9

[dependabot]

Bumps bazelbuild/continuous-integration/actions/bcr-pr-reviewer from 88343b58ed92860f43faeabd6c41e16b0aac57b6 to bf4dd844ae33da5f11cf592b39142ad285dac7f9.

Changelog

Sourced from bazelbuild/continuous-integration/actions/bcr-pr-reviewer's changelog.

Bazel Release Playbook

This is the guide to conducting a Bazel release. This is especially relevant for release managers, but will be of interest to anyone who is curious about the release process.

Preface

For future reference and release managers - the release manager playbook should be treated like an IKEA manual. That means: Do not try to be smart, optimize / skip / reorder steps, otherwise chaos will ensue. Just follow it and the end result will be.. well, a usable piece of furniture, or a Bazel release (depending on the manual).

Like aviation and workplace safety regulations, the playbook is written in the tears and blood of broken Bazelisks, pipelines, releases and Git branches. Assume that every step is exactly there for a reason, even if it might not be obvious. If you follow them to the letter, they are not error prone. Errors have only happened in the past, when a release manager thought it's ok to follow them by spirit instead. ;)

-- @​philwo

One-time setup

These steps only have to be performed once, ever.

• Make sure you are a member of the Bazel Release Managers team on GitHub.
• Make sure you are a member of the Bazel release-managers group on BuildKite. If that link does not work for you, ask one of the Buildkite org admins to add you to the group.
• Set up github ssh key if you haven't already.
  • https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/
• Generate a new identifier for Google's internal Git mirror: https://bazel.googlesource.com/new-password (and paste the code in your shell).
• Log in to the Gerrit UI to create an account: https://bazel-review.git.corp.google.com/ (without this step, you will see errors such as error_type: PERMISSION_DENIED_BY_GERRIT_ACL and "\'git push\' requires a Gerrit user account." when running the release script.

Preparing a new release

1. Create a release blockers milestone named "X.Y.Z release blockers" (case-sensitive), where we keep track of issues that must be resolved before the release goes out.
   • Set the (tentative) release date.
   • Add this description: Issues that need to be resolved before the X.Y.Z release..
   • Refer to this example
2. Create a release tracking issue to keep the community updated about the progress of the release. See example. Pin this issue.
3. Create the branch for the release. The branch should always be named release-X.Y.Z (the .Z part is important). Cherry-pick PRs will be sent against this branch.
   • The actual creation of the branch can be done via the GitHub UI or via the command line. For minor and patch releases, create the branch from the previous release tag, if possible. How we choose the base commit of the branch depends on the type of the release:
   • For patch releases (X.Y.Z where Z>0), the base commit should simply be X.Y.(Z-1).
   • For minor releases (X.Y.0 where Y>0), the base commit should typically be X.(Y-1).<current max Z>.
   • For major releases (X.0.0), the base commit is some "healthy" commit on the main branch.
     • This means that there's an extra step involved in preparing the release -- "cutting" the release branch, so to speak. For this, check the Bazel@HEAD+Downstream pipeline. The branch cut should happen on a green commit there; if the pipeline is persistently red, work with the Green Team to resolve it first and delay the branch cut as needed.
     • A first release candidate should immediately be created after the release branch is created. See create a release candidate below.

... (truncated)

Commits

• bf4dd84 Don't block for any postsubmit runs on release branches (#2736)
• 71e7f6e Update rules_kotlin to build master branch (#2729)
• 1c9f84d Create new pipeline for rules_servicetalk (#2732)
• a234ee1 Add permission to post the terraform plan in a comment (#2733)
• 1d93bfb Fix linux docker images pipeline (#2731)
• 02993b7 Enable per-step commit status publishing for rules_kotlin (#2728)
• f613e43 Allow presubmit-auto-run to be used on other repos (#2720)
• 3912ba9 Change RELEASE_BRANCH_RE to MERGE_QUEUE_BRANCH_RE (#2726)
• a096de8 Fix RELEASE_BRANCH_RE for rolling releases
• eb0c23f Also disable behavior monitoring on Windows
• Additional commits viewable in compare view

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