Rakefile

#rake
#task :default do
#  puts 'Hello World!'
#end

#rake ring
desc 'Ring the bell'
task :ring do
  puts "Bell is ringing."
end

#rake enter
#зависемость
desc 'Enter home'
task :enter => :ring do
  puts "Entering home!"
end

#rake -T

file 'products.sql' => 'products.xml' do
# build SQL INSERT clause and save it in products.sql file,
# basing on products.xml datafile
end

#manipulate_files
task :manipulate_files do
  mkdir 'new_dir'
  mv 'new_dir', 'lukasz'
  chmod 0777, 'lukasz'
  touch 'lukasz/wrobel.txt'
  #rm_rf 'lukasz'
end

task :rubyrake do 
  ruby 'rubyrake.rb'
end

#rake article:create_article
namespace :article do
  desc 'create a article'
  task :create_article do
    puts 'create A article'
  end

  desc 'edit a article'
  task :edit_article do
    puts 'edit A article'
  end
end

task :today do
  Rake::Task['article:create_article'].invoke
  Rake::Task['article:edit_article'].invoke
end

=begin
desc 'create file foo.txt'
file 'foo.txt' do
  touch 'foo.txt'
end

desc 'foo.txt => bar.txt'
file 'foo.txt' => 'bar.txt' do
  cp 'foo.txt', 'bar.txt'
end
=end


task :name_1 do
  puts 'name_1'
end

task :name_2 do
  puts 'name_2'
end

task :name_3 => ['name_1', 'name_2'] do
end