Ballerina Gradle plugin

Introduction

The Ballerina Gradle plugin is used to build Ballerina modules using Gradle. This plugin is used in the Ballerina platform to build the Ballerina Libraries. This plugin is needed when there is a Gradle project with a Ballerina submodule. The Ballerina submodule can be built using this plugin.

Note: This plugin is not recommended for building standalone Ballerina packages. It is recommended to use the Ballerina CLI directly in such scenarios.

Prerequisites

• This plugin is published in the Ballerina platform GitHub packages repository. Therefore, the Ballerina platform GitHub packages repository should be added to the Gradle plugin management repositories. To access the Ballerina platform GitHub packages repository, a GitHub personal access token (PAT) should be provided. The PAT should be provided as an environment variable named packagePAT. The username of the GitHub account should be provided as an environment variable named packageUser.

Usage

• Add the Ballerina Gradle plugin version in the gradle.properties file in your project.

  ballerinaGradlePluginVersion=1.0.0

• In your settings.gradle file, add the Ballerina Gradle Plugin under plugin management. Add the Ballerina platform GitHub packages repository under the repositories.

  pluginManagement {
      plugins {
          id "io.ballerina.plugin" version "${ballerinaGradlePluginVersion}"
      }
  
      repositories {
          gradlePluginPortal() // To resolve the plugins from the Gradle plugin portal.
          maven { // To resolve the Ballerina plugin from the Ballerina platform GitHub packages repository.
              url = 'https://maven.pkg.github.com/ballerina-platform/*'
              credentials {
                  username System.getenv("packageUser")
                  password System.getenv("packagePAT")
              }
          }
      }
  }

• In your build.gradle file inside the ballerina submodule, apply the Ballerina Gradle plugin.

  plugins {
      id "io.ballerina.plugin"
  }

• Provide the required inputs for the Ballerina plugin in the above build.gradle file.

  ballerina {
    packageOrganization = "ballerina"
    module = "io"
    testCoverageParam = "--code-coverage --coverage-format=xml"
  }
  

Build from the source

Download and install Java SE Development Kit (JDK) version 17. You can download it from either of the following sources:

• Oracle JDK
• OpenJDK

Note: After installation, remember to set the JAVA_HOME environment variable to the directory where JDK was installed.

Build options

Execute the commands below to build from the source.

1. To build the package:

   ./gradlew clean build

2. To publish to maven local:

   ./gradlew clean build publishToMavenLocal

Debug options

To debug the Ballerina gradle plugin against a Ballerina library package build use the following command to build the library:

./gradlew clean build -Dorg.gradle.debug=true

This would start a debug process on port 5005 and the developer can configure the remote debug for the Ballerina gradle plugin for this port.