Generate versionCode for Android using current time, incremented each minute.

build.gradle

/**
 * Constructs a version code as: {(now).minutes - (1 Jan 2021).minutes}* Which means that version code will be incremented each minute.
 * The greatest value Google Play allows for versionCode is 2100000000.
 * There are ~525600 minutes in a year, so greatest value will be reached after 3995 years.
 * */
static def versionCodeDate() {
    def millisInMinute = 60 * 1000
    def startDate = new GregorianCalendar(2021, Calendar.JUNE, 1)
    def startDateMinutePrecision = startDate.getTimeInMillis() / millisInMinute
    def now = new GregorianCalendar()
    def nowDateMinutePrecision = now.getTimeInMillis() / millisInMinute
    def difference = (nowDateMinutePrecision - startDateMinutePrecision).toInteger()
    println("Generated versionCode is: " + difference)
    return difference
}

android {
    defaultConfig {
        versionCode versionCodeDate()
    }
}