simple replacement for Rails capistrano

remote.rb

#!/usr/bin/ruby

require 'open3'
require 'colorize'

# CODE
@actions = {}

def action(id, name, &block)
 @actions[id] = { name:name, func:block }
end

# use this if you do not have to enter passwords and interact with output
def run(what)
  puts what.green
  stdin, stdout, stderr, wait_thread = Open3.popen3(what)
  stdout.each_line { |line| print line }
end

# use ths if you have to ennter password or interact with output
def input(what)
  puts what.green
  `#{what}`
end

def remote(what)
  run %[ssh #{@server} -t "cd #{@remote_path}; #{what}"]
end

def exec(name)
  act = @actions[name.to_sym]  
  puts ">>> #{act[:name]} <<<".yellow
  act[:func].call
end

def run!
  opt = ARGV.shift || 'nil'
  if @actions[opt.to_sym]
    exec opt
  else
    print "@server remote by @dux for #{@server.green}\nUsage: ./remote [option]\n"
    print "Options:".rjust(12)
    print "\n"
    for k,v in @actions
      print " #{k.to_s.rjust(10).yellow}: #{v[:name]}\n"
    end
  end
end

# OPTS
@server      = '[email protected]'
@sudo_pass   = 'server_pass'
@remote_path = '/home/deployer/apps/stashbuckets.com'
@db_name     = 'stash_bucket'
@db_user     = 'db_user'
@db_pass     = 'db_pass'
@db_local    = 'stash-bucket'

# ACTIONS
action :log, 'Get remote log' do
  remote 'tail -n 300 -f log/production.log'
end

action :deploy, 'Deploy pushed code' do
  remote "git stash; git pull origin master"
  remote "bundle install; rake db:migrate RAILS_ENV=production"
  remote "rake assets:clean RAILS_ENV=production; rake assets:precompile RAILS_ENV=production"
  remote "echo #{@sudo_pass} | sudo -S service nginx restart"
end

action :db, 'Get and import remote database' do
  run  %[echo "#{@db_pass}" | pbcopy]
  print 'Just PASTE CMD+V pass -> '
  input  %[ssh #{@server} "pg_dump --host localhost --port 5432 --username #{@db_user} --password #{@db_name}" > prod_database.sql]
  run   "dropdb #{@db_local}"
  run   "createdb -T template1 #{@db_local}"
  run   "psql -d #{@db_local} -f prod_database.sql"
  run   "rm -rf prod_database.sql"
end

action :push, 'Commit and push to production in one step (./remote push added some shit)' do
  print "Commit msg: "
  msg = gets.chomp
  unless msg =~/\w/
    print "No push message!\n".red
    exit
  end
  run  'git add .'
  run  'git add -A'
  run %[git commit -m "#{msg}"]
  run  'git push origin master'
  exec :deploy
end

run!