prow/cmd/deck/tide.go
func matches(repo string, repos []string) bool {
	org := strings.Split(repo, "/")[0]
	for _, r := range repos {
		if r == repo || r == org {
			return true
		}
	}
	return false
}
func matches(repo string, repos []string) bool {
	org := strings.Split(repo, "/")[0]
	for _, r := range repos {
		if r == repo || r == org {
			return true
		}
	}
	return false
}
// matches returns whether the provided repo intersects
// with repos. repo has always the "org/repo" format but
// repos can include both orgs and repos.