Build identifiers

build.gradle

ext {
    // Assumes Git is in your PATH
    commitCount = {
        return 'git rev-list --count HEAD'.execute().text.trim()
    }

    gitSha = {
        return 'git rev-parse --short HEAD'.execute().text.trim()
    }

    buildTimestamp = {
        def df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'")
        df.setTimeZone(TimeZone.getTimeZone("UTC"))
        return df.format(new Date())
    }
}