Rakefile

require "rubygems"
require "bundler/setup"
require "stringex"

# Variables
posts_dir       = "_posts"
new_post_ext    = "md"

#######################
# Working with Jekyll #
#######################

namespace :site do
  # rake build
  desc "Build the site with Jekyll"
  task :build do
    puts "## Generating Site with Jekyll"
    system "jekyll build"
  end

  # rake watch
  desc "Start this site's Jekyll server"
  task :watch do
    system "jekyll serve -w"
  end

  # rake preview
  desc "Preview the site in your default browser"
  task :preview do
      port = 4000
    Thread.new do
      puts "Launching browser for preview..."
      sleep 5
      system("#{open_command} http://localhost:#{port}/")
    end
    Rake::Task["site:watch"].invoke
  end
end

namespace :theme do
  # usage rake new_post[my-new-post] or rake new_post['my new post']
  desc "Create a new theme in #{posts_dir}"
  task :new, :title do |t, args|
    if args.title
      title = args.title
    else
      title = get_stdin("Enter a title for your post: ")
    end
    filename = "#{posts_dir}/#{Time.now.strftime('%Y-%m-%d')}-#{title.to_url}.#{new_post_ext}"
    if File.exist?(filename)
      abort("rake aborted!") if ask("#{filename} already exists. Do you want to overwrite?", ['y', 'n']) == 'n'
    end
    puts "Creating new post: #{filename}"
    open(filename, 'w') do |post|
      post.puts "---"
      post.puts "layout: theme"
      post.puts "thumbnail: /public/thumbnails/"
      post.puts "title: #{title.gsub(/&/,'&')}"
      post.puts "tags: "
      post.puts "author: "
      post.puts "author_url: "
      post.puts "package_url: "
      post.puts "package_name: "
      post.puts "date: #{Time.now.strftime('%Y-%m-%d %H:%M:%S %z')}"
      post.puts "---"
    end
  end
end

# Get the "open" command for rake preview
def open_command
  if RbConfig::CONFIG["host_os"] =~ /mswin|mingw/
    "start"
  elsif RbConfig::CONFIG["host_os"] =~ /darwin/
    "open"
  else
    "xdg-open"
  end
end

def get_stdin(message)
  print message
  STDIN.gets.chomp
end