Gitlab rake task to set all project's visibility level to private (0)

all_to_private.rake

namespace :gitlab do
  namespace :import do
    desc "GITLAB | Set all projects visibility level to 'private'"
    task all_to_private: :environment do |t, args|
      require 'acts_as_taggable_on/taggable/core'
      projects = Project.all
      projects.each do |project|
        if project.visibility_level != 0
          puts "Setting #{project.name}'s visibility_level to 'private'"
          project.visibility_level = 0
          project.save
        else
          puts "#{project.name}'s visibility_level is already 'private', skipping..."
        end
      end
    end
  end
end