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Gradle plugins to automate the build and release of Java projects.

Example usage

Add the required information to your build script. See the description below for more details.

plugins {
	id 'java'
	id 'com.github.oehme.sobula.bintray-release' version '0.4.1'

group = ""
description = "My really cool project"

contacts {
	"" {
		moniker "My Name"
		roles "owner"
		github "myGithubUsername"

bintray.user = "myBintrayUsernam"
bintray.pkg.version.mavenCentralSync.user = "mySonatypeUsername"

//your build logic here...

When you are ready to release, run

gradle release -PreleaseVersion="1.0" -PbintrayApiKey="myBintrayApiKey" -PsigningPassword="totallySecret" -PsonatypePassword="mySonatypePassword"

The release Plugin

This plugin provides the basic infrastructure for releasing Java projects with a pom.xml descriptor. It does not make assumptions about your specific release process, but enhances the project with useful capabilities:

  • a "release" lifecycle task is added
  • a default publication called mavenNebula is added
  • a javadoc and sources jar is created and added to that publication
  • you can specify the project's version from the command line via the releaseVersion property
  • if possible, the POM is automatically populated to meet Maven Central standards
    • the license is inferred from the LICENSE file in your project root directory
    • the developers section is inferred from the contacts plugin
    • the URL/SCM/Issues information is inferred if there is a contact with the "owner" role that also has a github username specified (this may change in the future and instead be derived from the repository information directly)

The bintray-release Plugin

This plugin takes an oppinionated approach to releasing to Bintray first, then optionally to Maven Central.

  • it configures the bintray package/version information automatically
  • requires the bintrayUsername and bintrayApiKey properties
  • by default uses artifact signing on Bintray
    • requires your key to be uploaded to Bintray
    • if your key is encrypted (it really should be!), requires the signingPassword property
    • can be switched off with bintray.pkg.version.gpg.sign = false
  • by default uses Maven Central sync from Bintray
    • requires the sonatypeUsername and sonatypePassword properties
    • can be switched off with bintray.pkg.version.mavenCentralSync.sync = false

The plugin-release Plugin

Used for releasing gradle plugins. Applies the bintray-release plugin. On top of that it sets the gradle-plugin attribute on the bintray publication. It searches for plugin definitions in all subprojects of the current project.

The stefan Plugin

This is just a convenience for myself. It fills in all the usernames and marks me as the project owner.

How I do releases

I build my projects on I have set it up so it will publish a release whenever a tag is pushed. This is what's needed for that to work:

I enter the required passwords as environment variables like ORG_GRADLE_PROJECT_bintrayApiKey=myApiKey.

My travis script calls out to a simple shell script which checks if the current build is a tag and calls gradle release in that case.

language: java
script: ./gradlew check && ./.travis/
set -ev
if [ -n "${TRAVIS_TAG}" ]; then
  ./gradlew release "-PreleaseVersion=${TRAVIS_TAG}"


Gradle plugins to automate the release of Java projects




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