Rakefile

require 'rb-inotify'

BUILD='bundle exec mdpress --latex -s plexus presentation.md'

class WatchTask
  def initialize(name, opts = {})
    Rake::Task.define_task name do
      Array(opts[:watch]).each do |pattern|
        notifier.watch(pattern, :modify, :create) do |event|
          system(opts[:exec])
          puts "OK"
        end
        at_exit {
          notifier.run
        }
      end
    end
  end

  def notifier
    @notifier ||= INotify::Notifier.new
  end
end

namespace :mdpress do
  desc 'watch the presentation and theme for changes and rebuild'
  WatchTask.new(
    :watch,
    :watch => [
      'presentation.md',
      'themes/plexus.css',
      'themes/plexus.html'
    ],
    :exec => BUILD
  )

  desc 'build the impress.js presentation'
  task :build do
    sh BUILD
  end
end


desc 'push a preview version to a unique URI'
task :preview => 'mdpress:build' do
  require 'securerandom'
  secret = SecureRandom.hex(8)
  sh "scp -r presentation arnebrasseur@arnebrasseur.net:subdomains/www/rulu-#{secret}"
  url = "http://arnebrasseur.net/rulu-#{secret}/index.html"
  sh "chromium-browser #{url}"
end

desc 'Publish the final result after the talk'
task :publish => 'mdpress:build' do
  require 'rainbow'
  puts '='*80
  puts 'Publising slides...'.center(80)
  sh "scp -r presentation arnebrasseur@arnebrasseur.net:subdomains/www/talks/rulu2013 > /dev/null"
  puts 'DONE!'.center(80).foreground(:green)
  puts '='*80
  puts
  [
    "Slides are available at".center(80),
    'http://arnebrasseur.net/talks/rulu2013'.center(80).foreground(:red),
    "Thank you! <3".center(80).foreground(:green)
  ].each do |str|
    puts str
    puts
  end
  puts '='*80
end