Git commits count as version code (Groovy & Kotlin implementation)

commits_count.gradle

static def gitVersion() {
    def result = "git rev-list HEAD --count".execute().text.trim() // unix
    if (result.empty) result = "PowerShell -Command git rev-list HEAD --count".execute().text.trim() // windows
    if (result.empty) throw new RuntimeException("Could not generate versioncode on this platform? Cmd output: ${result.text}")
    return result.toInteger()
}

android {
    defaultConfig {
        versionCode gitVersion()       
    }
}

commits_count.kts

val gitVersion: Int by lazy {
    val stdout = ByteArrayOutputStream()
    rootProject.exec {
        commandLine("git", "rev-list", "--count", "HEAD")
        standardOutput = stdout
    }
    stdout.toString().trim().toInt()
}

android {
    defaultConfig {
        versionCode = gitVersion       
    }
}