Important Note

This repo is obsolete and has been superseded by the Gradle Build Setup Plugin instead.

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This tool obtains the effective pom of the current project, reads its dependencies and generates build.gradle scripts.

Features list:

• Uses effective pom and effective settings (support for pom inheritance, dependency management, properties)
• Supports both single module and multimodule projects
• Generates settings.gradle for multimodule projects
• Supports custom module names (that differ from directory names)
• Generates general metadata - id, description and version
• Applies maven, java and war plugins (as needed)
• Supports packaging war projects as jars if needed
• Generates dependencies (both external and inter-module)
• Generates download repositories (inc. local maven repository)
• Adjusts java compiler settings
• Supports packaging of sources and tests
• Supports testng runner
• Generates global exclusions from Maven enforcer plugin settings

To do:

• Generate deployment settings (with support to optional dependencies and provided scope in generated pom.xml)

Installation:

• Note: Current version only works with Gradle 1.0-RC-Milestone3
• Note: Current version only works with Maven 3.0+ (see FAQ for the Maven 2 exception. Contribute a pull request if you can solve it.)
• Option 1:
  • Download the latest jar from JFrog Artifactory repository
  • Put the jar into $GRADLE_HOME/lib
  • Put the batch files from sources bin directory into $GRADLE_HOME/bin
• Option 2:
  • Run the gradle installScripts task which automatically copies the latest JAR and scripts into the aforementioned directories.

Usage:

• Run maven2gradle batch in the root of the converted project

Available options:

• -verbose prints the obtained effective pom
• -keepFile saves the obtained effective pom

Building from source:

• Option 1:
  • If wishing to only build locally, there are no special requirements for building.
• Option 2:
  • If wishing to deploy the resultant JAR and Source, you'll need a gradle.properties file, as described here: http://gradle.org/0.9-rc-3/docs/userguide/userguide_single.html#sec:repositories
  • Look at 33.5.2.1 "Accessing password protected Maven repositories", example 33.24.
  • Create gradle.properties file in your ~.gradle and define USER and PASSWORD properties.
  • Trigger the use of this file and values by setting -Dupload=true on the command line invocation of the Gradle build.

Note: Your project will be considered multi-module only if your reactor is also a parent of at least one of your modules. Why so? Reactor project is built last, when Parent project is built first. I need reactor to be built first, because effective-pom Mojo generates needed output only if it founds modules in first project it encounters. Making reactor also a parent achieves this.

Recognized Contributors:

• Antony Stubbs
• Baruch Sadogursky
• Matthew McCullough