Lookup existing changes by exact Change-Id string in ReceiveCommits

When processing the refs/for/* magic branch in ReceiveCommits
the matching by Change-Id needs to be exact and not by simple
query substring matching.

Using a substring matching allows having the same change with
multiple patch sets having different Change-Ids, which would
eventually, create inconsistencies in the whole repository.

Example:
T0: Push a change 1 with Change-Id=foobar
T1: Amend the change 1 with Change-Id=fooba (still matches foobar)
T2: Push a change 2 with Change-Id=foobaa

After T2, the change 1 amended at T1 would be inconsistent because
his Change-Id matches two different changes (1 and 2).

In order to enable this specific test-case, the PushOneCommit is
able to recognise that the message already contains a Change-Id
footer and avoids generating a new one.

Also fix in RevisionIT the assumption that including an existing
Change-Id was always creating a new commit. In PushOneCommit.java:267
we now assume that specifying an existing Change-Id in the commit
message instead of leaving the generation of a new one, means that
we are simulating the amending of the existing commit.
Effectively, the Change-Id is present in the commit message only
when editing an existing change.

Previously that behaviour was hidden in deep into the TestRepository
and therefore out of our control.

Bug: Issue 15664
Release-Notes: Disallow truncating the Change-Id across patch-sets
Change-Id: Id685e846d63902d065353ab8d42315367b43d3aa
4 files changed
tree: 2498def821810ddfa517f3c2db91de60f3876f00
  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.