Extract and rewrite the logic for comment threads

We need the logic for comment threads in more places (see I9d8091c3a
and I4af5946ce). Instead of duplicating it and possibly getting it
wrong, we now consolidate it in one place. This also includes the logic
when a comment thread is considered as unresolved/resolved.

A large benefit of this extraction is that we finally have proper test
coverage for various situations around comment threads. The previous
integration tests only verified a common case.

The new logic should also cover the issues previously solved by
I97c6aeb47 and I2788fdb22. In addition, the new logic also properly
covers longer child branches for which comments are not left one after
the other but with mixed dates. For just determining the unresolved
state of the whole thread, this didn't matter as only the last comment
(previously also determined by date for child branches) is relevant.
Now that we build the full comment threads and hand them out, we should
get the order of the contained comments right.

Unfortunately, the frontend orders comments on its own into threads.
That logic (currently contained in gr-comment-api.js) might differ from
the one implemented in the backend. Improving this situation or aligning
the logic is beyond the scope of this change, though.

Change-Id: Ie2713ebdbe05b69a705d2c9c03375b206a248e01
5 files changed
tree: c5a317846841df1982f68761c308e47aba41e627
  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. WORKSPACE
  40. yarn.lock
README.md

Gerrit Code Review

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

Build Status Maven Central

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

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Install binary packages (Deb/Rpm)

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On Debian/Ubuntu run:

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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:

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Use pre-built Gerrit images on Docker

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