Simple sinatra solution for syncing github repo with external ftp server

sync.rb

load 'ftp_sync.rb' # use this library -> https://github.com/ashchan/ftpsync
require 'sinatra'

# Here you set global ip of your vps
set :bind, '0.0.0.0'
# Here you set port
set :port, '80'

# here you set FTP host
host = 'example.com' 
# here you set FTP user
login = 'admin@example.com'
# here you set FTP password
password = 'password' 
# here you set your repo path on server
local_path = 'www'
# here you set your ftp targer path
ftp_path  'www'

# Here you set /path which you provide in github webhooks.
post '/path' do 
  # You need ssh key generated by server. 
  # You set github deploy-key 
  # to your's server public key. 
  anwser = `cd #{local_path} && git pull`
  ftp = FtpSync.new(host,login,password)
  ftp.sync(local_path, server_path)
  anwser
end