Add utility methods and constants for abbreviating ObjectIds

There are a variety of ways to abbreviate ObjectId hex strings: with an
arbitrary default length or an explicit length, with or without an
ObjectReader for final disambiguation. Cut down on the amount of
hard-coding and save a few characters by introducing a consistent set of
abbreviateName static methods.

This class is also a convenient place to put a constant for the default
abbreviation length (7), which doesn't exist in JGit (e.g. it's
hard-coded in ObjectReader.java). Since we have that constant, also add
another constant that copies Constants.OBJECT_ID_STRING_LENGTH. In
general we avoid duplicating JGit constants in Gerrit, but in this case
the upstream constant is quite verbose, and also it's cleaner at call
sites in Gerrit to be using two constants from ObjectIds with a
consistent naming pattern.

This change preserves existing abbreviation behavior in all cases.

Change-Id: I2b6a30c1ee122c6d0e149cd19b5e23a4ac4294da
32 files changed
tree: 3173235147903125eec706f0f7aa8ad0b33183aa
  1. .settings/
  2. antlr3/
  3. contrib/
  4. Documentation/
  5. java/
  6. javatests/
  7. lib/
  8. plugins/
  9. polygerrit-ui/
  10. prolog/
  11. prologtests/
  12. proto/
  13. resources/
  14. tools/
  15. webapp/
  16. .bazelproject
  17. .bazelrc
  18. .editorconfig
  19. .git-blame-ignore-revs
  20. .gitignore
  21. .gitmodules
  22. .mailmap
  23. .pydevproject
  24. BUILD
  25. COPYING
  26. INSTALL
  27. README.md
  28. SUBMITTING_PATCHES
  29. version.bzl
  30. WORKSPACE
README.md

Gerrit Code Review

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

Build Status

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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 7 based Gerrit image:

    docker run -p 8080:8080 gerritforge/gerrit-centos7[:version]

To run a Ubuntu 15.04 based Gerrit image:

    docker run -p 8080:8080 gerritforge/gerrit-ubuntu15.04[:version]

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