Adds maintenance rake tasks for logrotate and temp file deletion; Adds whenever gem + sample whenever file

Gemfile

@@ -4,6 +4,7 @@ gem 'rails', '3.0.11'
 
 gem 'bundler', '>= 1.0.0'
 gem 'foreman'
+gem 'whenever'
 
 gem 'thin', '~> 1.3.1', :require => false
 

config/schedule.rb.example

@@ -0,0 +1,25 @@
+# Use this file to easily define all of your cron jobs.
+#
+# It's helpful, but not entirely necessary to understand cron before proceeding.
+# http://en.wikipedia.org/wiki/Cron
+
+# set :environment, "production"
+
+# Example:
+set :output, File.join( File.dirname( __FILE__ ), '..', 'logs', 'scheduled_tasks.log' )
+
+every 1.day, :at => '3:00 am' do
+  rake 'maintenance:clear_carrierwave_temp_uploads'
+end
+
+# every 2.hours do
+#   command "/usr/bin/some_great_command"
+#   runner "MyModel.some_method"
+#   rake "some:great:rake:task"
+# end
+#
+# every 4.days do
+#   runner "AnotherModel.prune_old_records"
+# end
+
+# Learn more: http://github.com/javan/whenever

lib/tasks/maintenance.rake

@@ -0,0 +1,39 @@
+#   Copyright (c) 2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
+
+namespace :maintenance do
+  APP_ROOT = File.expand_path( File.join( File.dirname( __FILE__ ), '..', '..') )
+  desc "Clear CarrierWave temp uploads"
+  task :clear_carrierwave_temp_uploads do
+    filename = File.join( APP_ROOT, 'tmp', 'uploads', '*')
+    today_string = Time.now.strftime( '%Y%m%d' )
+    Dir.glob( filename ) do |file|
+      unless file.include?( today_string )
+        FileUtils.rm_rf( file )
+      end
+    end
+  end
+
+  desc "Rotate Diaspora logs"
+  task :install_logrotate_config do
+    logrotate_conf = <<-RUBY
+#{APP_ROOT}/logs/production.log {
+  daily
+  missingok
+  rotate 8
+  compress
+  delaycompress
+  notifempty
+  copytruncate
+}
+RUBY
+    begin
+      File.open('/etc/logrotate.d/diaspora') do |fin|
+        fin.write logrotate_conf
+      end
+    rescue
+      puts "Could not install logrotate configs. Perhaps you should try running this task as root and ensuring logrotate is installed:\n#{logrotate_conf}"
+    end
+  end
+end