Gradle equivalent of maven-versions-plugin

Question

This is my build.gradle:

group 'whatever'
version '1.0.0-SNAPSHOT'

...

dependencies {
    compile 'whatever:2.2.1-SNAPSHOT'
}

I want to automate releasing process, which includes the need to set both versions to particular values, e.g. 1.1.0 or 2.2.0 using command line only. Any kind of autoincrement is not an option.

With Maven, I'd do this using maven-versions-plugin:

mvn versions:set -DnewVersion=${WHATEVER_NEW_VERSION}

How can I do the same with Gradle? I only found this unanswered question. There must be some simple way to do that?

Rootlet

Answer 1

I ended up extracting version numbers to gradle.properties and updating them as part of the automated build script using sed:

sed -i -e \"/someVersionNumber=/ s/=.*/=${SOME_NEW_VERSION_NUMBER}/\" gradle.properties

It's what I want. Although for me, coming from the Maven background, this doesn't seem natural. I may research another alternative later.

Rootlet

I like the Maven on Steroids pattern which is close to what you’re describing here. 1. Set the checked-in version to 0-SNAPSHOT 2. Update the version dynamically on release. See: austenconstable.com/2019-11-17-grade-on-steroids and the original Maven concept from Axel Fontaine here: axelfontaine.com/blog/final-nail.html – Suffer

Answer 2

Though not related to publishing, one way to pass command-line properties is as follows:

gradle -PWHATEVER_NEW_VERSION=2.0.0

Consider the following build.gradle snippet:

def newVersion = project."WHATEVER_NEW_VERSION"
println newVersion

See ~/utils/gradle/version.gradle in this project for another approach. It uses separate environment variables for major, minor, and incremental versions and then builds the string automatically. Because it resides in the gradle directory, it can simply be imported into build.gradle, which hides some boilerplate.

Biannulate

Answer 3

I successfully used Axion Release Plugin a couple of times and was very satisfied. Functionality-wise it comes the closest to what Maven's

Alunite

Answer 4

I've added this line on build.gradle.kts

version = System.getenv("NEW_VERSION") ?: "0.0.1-SNAPSHOT"

Not completely equivalent but works fine inside CI/CD scripts.

Pierre