Add the 'branch' as a field of RevisionInfo

Currently the branch field is only part of the ChangeInfo/ChangeData,
however the target branch can be different if the change is moved
between patchsets.

We keep history of the target branch changes in NoteDb. In this change,
we parse and set the 'branch' as a new field in PatchSet. We also
surface the 'branch' field on the API in RevisionJson.

A note on compatibility: PatchSet is an entity that's serialized to
proto (See PatchSetProtoConverter) in two places:
1) in ChangeField to be stored in the change index.
2) as a field in ChangeNotesState, then stored as value in
   ChangeNotesCache.

For [1], until we upgrade the version of the change index, existing
patchsets stored in the index will not have the new 'branch' field set,
hence any requests for patchsets data that go through the change index
will not have the `branch` field set. If the per-patch-set branch does
not exist, we only set the branch value to the per-change value if this
is the last patch-set. Otherwise, the branch field will be null.

For [2], we increased the cache version to force loading the
new 'branch' field.

The modification to the serialization in this change is forward
compatible: an old version of the server code can deal with
(deserialize) entities written with the new 'branch' field, since this
field is optional.

Release-Notes: Add 'branch' as a new field in RevisionInfo
Forward-Compatible: checked
Google-Bug-Id: b/282076066
Change-Id: I166e86d0e52dbaa9b9c3757d2034827653f745fb
14 files changed
tree: 53a5ccc912a35229a2275eae1213b3f2f280cd1f
  1. .settings/
  2. .ts-out/
  3. antlr3/
  4. contrib/
  5. Documentation/
  6. e2e-tests/
  7. java/
  8. javatests/
  9. lib/
  10. modules/
  11. plugins/
  12. polygerrit-ui/
  13. prolog/
  14. prologtests/
  15. proto/
  16. resources/
  17. tools/
  18. webapp/
  19. .bazelignore
  20. .bazelproject
  21. .bazelrc
  22. .bazelversion
  23. .editorconfig
  24. .git-blame-ignore-revs
  25. .gitignore
  26. .gitmodules
  27. .gitreview
  28. .mailmap
  29. .pydevproject
  30. .zuul.yaml
  31. BUILD
  32. COPYING
  33. INSTALL
  34. Jenkinsfile
  35. package.json
  36. README.md
  37. SUBMITTING_PATCHES
  38. version.bzl
  39. web-dev-server.config.mjs
  40. WORKSPACE
  41. yarn.lock
README.md

Gerrit Code Review

Gerrit is a code review and project management tool for Git based projects.

Build Status Maven Central

Objective

Gerrit makes reviews easier by showing changes in a side-by-side display, and allowing inline comments to be added by any reviewer.

Gerrit simplifies Git based project maintainership by permitting any authorized user to submit changes to the master Git repository, rather than requiring all approved changes to be merged in by hand by the project maintainer.

Documentation

For information about how to install and use Gerrit, refer to the documentation.

Source

Our canonical Git repository is located on googlesource.com. There is a mirror of the repository on Github.

Reporting bugs

Please report bugs on the issue tracker.

Contribute

Gerrit is the work of hundreds of contributors. We appreciate your help!

Please read the contribution guidelines.

Note that we do not accept Pull Requests via the Github mirror.

Getting in contact

The Developer Mailing list is repo-discuss on Google Groups.

License

Gerrit is provided under the Apache License 2.0.

Build

Install Bazel and run the following:

    git clone --recurse-submodules https://gerrit.googlesource.com/gerrit
    cd gerrit && bazel build release

Install binary packages (Deb/Rpm)

The instruction how to configure GerritForge/BinTray repositories is here

On Debian/Ubuntu run:

    apt-get update && apt-get install gerrit=<version>-<release>

NOTE: release is a counter that starts with 1 and indicates the number of packages that have been released with the same version of the software.

On CentOS/RedHat run:

    yum clean all && yum install gerrit-<version>[-<release>]

On Fedora run:

    dnf clean all && dnf install gerrit-<version>[-<release>]

Use pre-built Gerrit images on Docker

Docker images of Gerrit are available on DockerHub

To run a CentOS 8 based Gerrit image:

    docker run -p 8080:8080 gerritcodereview/gerrit[:version]-centos8

To run a Ubuntu 20.04 based Gerrit image:

    docker run -p 8080:8080 gerritcodereview/gerrit[:version]-ubuntu20

NOTE: release is optional. Last released package of the version is installed if the release number is omitted.