Gradle announcer for https://pushover.net/Put this into ~/.gradle/init.d/PushoverAnnouncer.gradle

PushoverAnnouncer.gradle

import org.gradle.api.plugins.announce.Announcer
import org.gradle.api.plugins.announce.internal.AnnouncingBuildListener
import org.slf4j.Logger
import org.slf4j.LoggerFactory

def pushoverAppToken = 'YourAppToken'
def pushoverUser = 'YourUserToken'

class PushoverAnnouncer implements Announcer {
    private static final Logger logger = LoggerFactory.getLogger(PushoverAnnouncer)

    private final String appToken
    private final String user

    PushoverAnnouncer(String appToken, String user) {
        this.appToken = appToken
        this.user = user
    }

    void send(String title, String message) {
        HttpURLConnection connection

        try {
            connection = new URL('https://api.pushover.net/1/messages.json').openConnection()
            connection.requestMethod = "POST"
            connection.doInput = true
            connection.doOutput = true
            connection.useCaches = false

            String content = 'token=' + URLEncoder.encode(appToken, 'UTF-8') +
              '&user=' + URLEncoder.encode(user, 'UTF-8')
            
			if(title) {
				content = content + '&title=' + URLEncoder.encode(title, 'UTF-8')
			}
			if(message) {
				content = content + '&message=' + URLEncoder.encode(message, 'UTF-8')
			}

			logger.info("About to write '$content'.")
            connection.outputStream.withWriter { out ->
                out.write content
            }

            logger.info("Successfully sent '$message'.")
			logger.debug connection.inputStream.getText("UTF-8")
			// It seems that getText needs to be executed
			// otherwise the call isn't performed.
        } catch (Throwable t) {
        	logger.warn("Failed to notify sender: '$t'")
        } finally {
            connection?.disconnect()
        }
    }
}

gradle.projectsEvaluated {
	// don't send notifications for buildSrc or in case of continuous build
	if(gradle.rootProject.rootDir.name != 'buildSrc' && !gradle.startParameter.continuous)  {
		PushoverAnnouncer announcer = new PushoverAnnouncer(pushoverAppToken, pushoverUser)
		
		AnnouncingBuildListener listener = new AnnouncingBuildListener(announcer)
		
		gradle.addListener(listener)
	}
}