Creating a project builder and plugin in Gradle

I want to use Gradle to create following things.

I want to create a plug-in which can

1. Create a project structure
2. project life cycle of my one like plugin 'java' has many java related lifecycle like i need my own lifecycle
3. Internally jars or zips my project
4. runs my proj开发者_开发百科ect.

How to implement all these.. any example ?

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most of what you are asking for is information provided in the cookbook: http://docs.codehaus.org/display/GRADLE/Cookbook

to create a project structure read: mrhaki.blogspot.com/2009/11/using-gradle-for-mixed-java-and-groovy.html and look for the initProject task.