abstract class CheckContributorsInReleaseNotes : AbstractCheckOrUpdateContributorsInReleaseNotes() {
    @TaskAction
    fun check() {
        val contributorsInReleaseNotes = TreeSet(getContributorsInReleaseNotes().map { it.login })
        val contributorsFromPullRequests = TreeSet(getContributorsFromPullRequests().map { it.login })

abstract class UpdateContributorsInReleaseNotes : AbstractCheckOrUpdateContributorsInReleaseNotes() {
    @TaskAction
    fun update() {
        val contributorsInReleaseNotes = getContributorsInReleaseNotes().associateBy { it.login }
        val contributorsFromPullRequests = getContributorsFromPullRequests().associateBy { it.login }

    @get: Internal
    abstract val milestone: Property<String>

    @get: Internal
    abstract val githubToken: Property<String>

    @Internal
    protected
    fun getContributorsInReleaseNotes(): Set<GitHubUser> {
        val (_, contributorLines, _) = parseReleaseNotes()
        return contributorLines
            .map { it.trim() }
            .filter { it.isNotEmpty() }