How to get the next build number in Gradle

Question

Is there any way to get the next version when publishing to a repository in gradle?

For e.g. if I have the version 3.0.1 in my repository I want the published version to be 3.0.2.

ivy has a task for ant named buildnumber which does exactly that:

<project xmlns:ivy="antlib:org.apache.ivy.ant"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<target name="ivyBuildNumber" description="Use ivy get the next build number">
    <ivy:buildnumber
        resolver="url-chain"
        organisation="${ivy.organisation}"
        module="${ivy.module}"
        revision="${version.base}"/>

    <echoproperties prefix="ivy.new."/>
</target>

Is there a way to do so in gradle? if not how can I access ivy tasks from gradle's ant?

In my build.gradle I calling to the ant

ant.importBuild 'build.xml'

Answer 1

After a long work, I managed to do that.

In my build.gradle I added this following code

ant.importBuild 'build.xml'

task getNextBuild(dependsOn : ivyBuildNumber) {
    doLast{
        def nextVersion = ant.properties['ivy.new.revision']
        println nextVersion
    }
}

I imported my ant build file, and created a task that calls the ivy buildnumber task.

There is my build.xml

<project xmlns:ivy="antlib:org.apache.ivy.ant">

    <target name="ivyBuildNumber">
        <path id="ivy.classpath" path="lib/ivy.jar" />
        <typedef resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant" classpathref="ivy.classpath" />
        <ivy:buildnumber
            organisation="daniel"
            module="hello"/>
        <echoproperties prefix="ivy.new."/>
    </target>
</project>

Because my IDE (Intellij), didn't have ivy.jar in the content,
I imported the ivy.jar from my root dir (lib/ivy.jar)