How to compile and build Gerrit Plugins?

To build Gerrit Plugins from source, you need:

A Linux or macOS system (Windows is not supported at this time)

zip, unzip, wget

$yum install zip -y
$ yum install unzip -y
$ yum install wget -y
$ yum install git -y

Python 2 or 3
This is installed in each RHEL 7 and Ubunutu server by defaul.

Node.js

curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -
OR
curl --silent --location https://rpm.nodesource.com/setup_10.x | sudo bash -
sudo yum -y install nodejs

Bazel

## RHEL/CentOS 7 64-Bit ##
$ wget https://copr.fedorainfracloud.org/coprs/vbatts/bazel/repo/epel-7/vbatts-bazel-epel-7.repo
$ cp vbatts-bazel-epel-7.repo /etc/yum.repos.d/
$ yum install -y bazel

How to Installing Bazel on Ubuntu?
https://docs.bazel.build/versions/master/install-ubuntu.html

Maven

$ cd /opt
$ wget http://www-us.apache.org/dist/maven/maven-3/3.5.4/binaries/apache-maven-3.5.4-bin.zip
$ unzip apache-maven-3.5.4-bin.zip
$ mv apache-maven-3.5.4 maven
$ export PATH=$PATH:/op/maven/bin

gcc

[code language=”text”]$ sudo yum install gcc-c++ make[/code]

Now, Bazel in tree driven means it can only be built from within Gerrit tree. Clone or link the plugin into gerrit/plugins directory:

# First become a non-root user

A JDK for Java 8

$ cd
$ wget -c --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.tar.gz
$ tar -xvf jdk-8u181-linux-x64.tar.gz
$ export JAVA_HOME=/home/ec2-user/jdk1.8.0_181
$ java -version

Follow for Gerrit.war

$ git clone --recursive https://gerrit.googlesource.com/gerrit
$ cd gerrit 
$ bazel build release

Follow for plugins such as its-jira

$ cd plugins
$ git clone https://gerrit.googlesource.com/plugins/its-jira
$ git clone https://gerrit.googlesource.com/plugins/its-base
$ bazel build plugins/its-jira

The output can be normally found in the following directory:

bazel-genfiles/plugins/its-jira/its-jira.jar

# Some plugins describe their build process in src/main/resources/Documentation/build.md file. It may worth checking.

# Some plugins cane be build using maven as well

Reference

• https://gerrit-review.googlesource.com/Documentation/dev-bazel.html
• https://gerrit.googlesource.com/gerrit/
• https://gerrit-review.googlesource.com/Documentation/cmd-plugin-install.html
• https://gerrit-review.googlesource.com/Documentation/dev-build-plugins.html

Rajesh Kumar

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