Rakefile

require 'rake/clean'
require 'rake/task'

desc 'run install bower'
task :npm_install_bower do
 system('npm install bower')
end

desc 'run bower install'
task :bower_install do
  system('bower install')
end

desc 'run app'
task :run_app do
  Rake::Task['build_app'].execute
  Dir.chdir('public') do
    system('jekyll serve -w')
  end
end

desc 'build app'
task :build_app => [
  :npm_install_bower,
  :bower_install,
]