#Simple FTP Deploy Script
#Pushes all file changes by a specific git commit
#Defaults to last commit

require 'rubygems'
require 'net/ssh'
require 'net/sftp'

path   = "/"
ftp_host = 'ftp.example.com'
ftp_user = 'username'
ftp_password = 'secret'

def upload(options={})

  Net::SSH.start(options[:ftp_host],options[:ftp_user],:password =>options[:ftp_password] ) do |ssh|
    ssh.sftp.connect do |sftp|
		 total = files.size

		 options[:files].each_with_index do |file,index|
		   from = file
			 to   = "#{options[:path]}/#{file}"

		   begin
         remote_dir = File.dirname(to)
				 sftp.upload!(from,to)
       rescue Net::SFTP::StatusException => e
         raise unless e.code == 2
				 mkdir(sftp,remote_dir)
				 sftp.upload!(from,to)
		   else
		     puts "#{index+1} of #{total} Uploading #{to}"
       end

		 end

    end
  end
end

def mkdir(sftp,remote_dir)
  begin
	  sftp.mkdir!(remote_dir, :permissions => 0755)
  rescue Net::SFTP::StatusException => e
	  raise unless e.code == 2
	  mkdir(sftp,File.dirname("#{remote_dir}.dir"))
		sftp.mkdir!(remote_dir, :permissions => 0755)
  end
end

commit = ''

ARGV.each do |var|
  if var =~ /^([\w]{5,40})/
	  commit = $1.strip
		break
	end
end

updated_file_names = `git show #{commit} --name-only`
files = updated_file_names.split(/\n/)
files = lines[5..-1].reject {|v| v.strip.empty? }

puts "Ready to upload the following..."
puts
files.each {|file| puts file }
puts
puts "#{lines.size} files waiting to be pushed..."
print "Proceed? "
y_or_no = STDIN.gets

if y_or_no.match(/^y/i)
  puts "Uploading..."
	upload(:path => path,:files => files,:ftp_host => ftp_host,:ftp_user=>ftp_user,:ftp_password=>ftp_password)
else
  puts "Quiting"
end