How-to Generate Build-Numbers for Gradle Projects

Add the below stuff to your build.gradle file. Everytime build or any other task is executed the below code will generate date based build-no and insert into the application.properties file

allprojects {
    updateVersionInApplicationProperties()
}

def updateVersionInApplicationProperties() {
    def configFile = new File('Webapp/src/main/resources/application-build.properties')
    if (!configFile.exists()) {
        configFile = new File('src/main/resources/application-build.properties')
    }
    println "Updating version to '" + getDate() + "' in ${configFile}"
    String configContent = configFile.getText('UTF-8')
    configContent = configContent.replaceAll(/info\.build\.version=.*/, "info.build.version=" + getDate())
    configFile.write(configContent, 'UTF-8')

}

def getDate() {
    new Date().format('yy.MM.dd')
}