Rakefile

require 'rubygems'
require 'rake'
require 'yaml'
require 'time'

SOURCE = "."
CONFIG = {
  'layouts' => File.join(SOURCE, "_layouts"),
  'posts' => File.join(SOURCE, "_posts"),
  'post_ext' => "md",
}

# Usage: rake post title="A Title" [date="2012-02-09"]
desc "Begin a new post in #{CONFIG['posts']}"
task :post do
  abort("rake aborted: '#{CONFIG['posts']}' directory not found.") unless FileTest.directory?(CONFIG['posts'])
  title = ENV["title"] || "new-post"
  slug = title.downcase.strip.gsub(' ', '-').gsub(/[^\w-]/, '')
  begin
    date = (ENV['date'] ? Time.parse(ENV['date']) : Time.now).strftime('%Y-%m-%d')
  rescue => e
    puts "Error - date format must be YYYY-MM-DD, please check you typed it correctly!"
    exit -1
  end
  filename = File.join(CONFIG['posts'], "#{date}-#{slug}.#{CONFIG['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: post"
    post.puts "title: \"#{title.gsub(/-/,' ')}\""
    post.puts 'description: ""'
    post.puts "---"
    post.puts ""
  end
	exec("#{ENV['EDITOR']} #{filename}")
end # task :post

# Usage: rake page title="Foo bar"
desc "Create a new page."
task :page do
  title = ENV["title"] || "new-page"
  slug = title.downcase.strip.gsub(' ', '-').gsub(/[^\w-]/, '')
  filename = File.join(SOURCE, "#{slug}.#{CONFIG['post_ext']}")
  title = File.basename(filename, File.extname(filename)).gsub(/[\W\_]/, " ").gsub(/\b\w/){$&.upcase}
  if File.exist?(filename)
    abort("rake aborted!") if ask("#{filename} already exists. Do you want to overwrite?", ['y', 'n']) == 'n'
  end

  puts "Creating new page: #{filename}"
  open(filename, 'w') do |post|
    post.puts "---"
    post.puts "layout: page"
    post.puts "title: \"#{title}\""
    post.puts "permalink: \"/#{slug}/\""
    post.puts 'group: "navigation"'
    post.puts 'description: ""'
    post.puts "---"
    post.puts ""
  end
	exec("#{ENV['EDITOR']} #{filename}")
end # task :page


desc "Install"
task :install do
  system "bundle install --path vendor/bundle"
end # task :install

desc "Launch preview environment"
task :serve do
  system "bundle exec jekyll serve -w -H 0.0.0.0"
end # task :serve


def ask(message, valid_options)
  if valid_options
    answer = get_stdin("#{message} #{valid_options.to_s.gsub(/"/, '').gsub(/, /,'/')} ") while !valid_options.include?(answer)
  else
    answer = get_stdin(message)
  end
  answer
end

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

#Load custom rake scripts
Dir['_rake/*.rake'].each { |r| load r }