fixes

config/deploy.rb

@@ -1,5 +1,6 @@
 $:.unshift(File.expand_path("./lib", ENV["rvm_path"]))
 set :rvm_ruby_string, "ruby-1.9.2"
+set :rvm_bin_path, "/usr/local/rvm/bin"
 require 'rvm/capistrano'
 
 set :stages, %w(production staging)
@@ -15,8 +16,30 @@ require 'whenever/capistrano'
 set :application, "danbooru"
 set :repository,  "git://github.com/r888888888/danbooru.git"
 set :scm, :git
+set :user, "danbooru"
 set :deploy_to, "/var/www/#{application}"
 
+default_run_options[:pty] = true
+
+desc "Change ownership of common directory to user"
+task :reset_ownership_of_common_directory do
+  sudo "chown -R #{user}:#{user} /var/www/danbooru"
+end
+
+namespace :deploy do
+  namespace :web do
+    desc "Present a maintenance page to visitors."
+    task :disable do
+      run "mv #{current_path}/public/maintenance2.html #{current_path}/public/maintenance.html"
+    end
+    
+    desc "Makes the application web-accessible again."
+    task :enable do
+      run "mv #{current_path}/public/maintenance.html #{current_path}/public/maintenance2.html"
+    end
+  end
+end
+
 namespace :delayed_job do
   desc "Start delayed_job process"
   task :start, :roles => :app do
@@ -34,6 +57,8 @@ namespace :delayed_job do
   end
 end
 
+after "deploy:setup", "reset_ownership_of_common_directory"
 after "deploy:start", "delayed_job:start"
 after "deploy:stop", "delayed_job:stop"
 after "deploy:restart", "delayed_job:restart"
+