Revert "added prune method"

This reverts commit 70789373.

lib/tasks/rake_helpers.rb

-#   Copyright (c) 2010, Diaspora Inc.  This file is
-#   licensed under the Affero General Public License version 3 or later.  See
-#   the COPYRIGHT file.
-module RakeHelpers
-  def process_emails(csv, num_to_process, offset, num_invites=10, test=true)
-    if RUBY_VERSION.include? "1.8"
-       require 'fastercsv'
-       backers = FasterCSV.read(csv)
-     else
-       require 'csv'
-       backers = CSV.read(csv)
-     end
-    puts "IN TEST MODE" if test
-    churn_through = 0
-    num_to_process.times do |n|
-      if backers[n+offset] == nil
-        break
-      end
-      churn_through = n
-      backer_name = backers[n+offset][0].to_s.strip
-      backer_email = backers[n+offset][1].to_s.gsub('.ksr', '').strip
-      unless User.find_by_email(backer_email)
-        puts "sending email to: #{backer_name} #{backer_email}" unless Rails.env == 'test'
-        Invitation.create_invitee(:service => 'email', :identifier => backer_email, :name => backer_name, :invites => num_invites) unless test
-      else
-        puts "user with the email exists: #{backer_email} ,  #{backer_name} " unless Rails.env == 'test'
-      end
-    end
-    churn_through
-  end
-
-  def prune_yesterdays_backups(f)
-    filenames = f.clone
-    filenames.sort!.map!{|d| d.delete('.tar')}
-
-    groups = filenames.group_by do |x|
-      Time.at(x.to_i).strftime('%m%d%Y')
-    end
-
-    today = Time.now.strftime('%m%d%Y')
-    yesterday = 1.day.ago.strftime('%m%d%Y')
-    to_delete = []
-    if groups[today].count > 23  # if this is the 24th backup of the day
-      puts groups[yesterday].count
-      groups[yesterday].pop
-      to_delete = groups[yesterday]
-      puts groups[yesterday].count
-    end
-
-    to_delete.map!{|x| x + '.tar'}
-  end
-end