Rails Capistrano Deploy - REVISION: No such file or directory - ruby-on-rails

Question

I'm using the Capistrano gem and this tutorial to deploy my application to my remote server. Everything works fine until the end of the cap deploy command. I'm receiving this error:
** [ps123456.dreamhostps.com :: out] sh: myapp.git/releases/20130916201449/REVISION: No such file or directory
command finished in 2266ms
*** [deploy:update_code] rolling back
* executing "rm -rf myapp.git/releases/20130916201449; true"
servers: ["ps123456.dreamhostps.com"]
[ps123456.dreamhostps.com] executing command
command finished in 254ms
failed: "sh -c 'git clone --depth 1 ssh://username#ps123456.dreamhostps.com/~/myapp.git myapp.git/releases/20130916201449 && cd myapp.git/releases/20130916201449 && git checkout -b deploy 497af4d996358f8d1f42dc9658e276ee8d9fa64f && git submodule init && git submodule sync && export GIT_RECURSIVE=$([ ! \"`git --version`\" \\< \"git version 1.6.5\" ] && echo --recursive) && git submodule update --init $GIT_RECURSIVE && rm -Rf myapp.git/releases/20130916201449/.git && (echo 497af4d996358f8d1f42dc9658e276ee8d9fa64f > myapp.git/releases/20130916201449/REVISION)'" on ps123456.dreamhostps.com
Here is my deploy.rb:
require 'bundler/capistrano'
set :user, 'username'
set :domain, 'ps123456.dreamhostps.com'
set :applicationdir, "myapp.git"
default_run_options[:pty] = true
set :scm, 'git'
set :repository, "ssh://username#ps123456.dreamhostps.com/~/myapp.git"
set :git_enable_submodules, 1 # if you have vendored rails
set :branch, 'master'
set :git_shallow_clone, 1
set :scm_verbose, true
# roles (servers)
role :web, domain
role :app, domain
role :db, domain, :primary => true
# deploy config
set :deploy_to, applicationdir
set :deploy_via, :export
# additional settings
default_run_options[:pty] = true # Forgo errors when deploying from windows
# Passenger
namespace :deploy do
task :start do ; end
task :stop do ; end
task :restart, :roles => :app, :except => { :no_release => true } do
run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
end
end
What is going wrong?

Answer 1

It's hard to say exactly, but it's clear that your releases/#{revision} dir is missing by the time you try to push the git revision into the file REVISION.
One likely issue that should probably get fixed is your :deploy_to dir is the same directory on the same machine as the git repo you are cloning from. Try this instead:
In your deploy.rb
set :deploy_to, "/home/#{user}/app/#{application}"
Then make sure to run this the first time:
cap deploy:setup
Then feel free to:
cap deploy

Answer 2

After a lot of head scratching, oddly enough, it was cap deploy:setup that was my downfall. I am still unsure as to what was going on, but I have thoroughly tested and verified that deleting the deployment directory and redeploying the application without running cap deploy:setup will work.
For some reason, running cap deploy:setup, even after successful deploys, will cause permission errors and causes cap deploy to be unable to create and write to directories.