reorganize rakefile

Namely standardized some logic and put config variables in hash

Rakefile

@@ -1,61 +1,48 @@
 require "rubygems"
 require 'rake'
 
-## -- Misc Configs --##
-jekyll_dir    = "."
-posts_dir      = "_posts"
-new_post_ext   = "md"
+SOURCE = "."
+CONFIG = {
+  'themes' => File.join(SOURCE, "_includes", "themes"),
+  'layouts' => File.join(SOURCE, "_layouts"),
+  'posts' => File.join(SOURCE, "_posts"),
+  'post_ext' => "md"
+}
 
 # usage rake new_post[my-new-post] or rake new_post['my new post'] or rake new_post (defaults to "new-post")
-desc "Begin a new post in #{jekyll_dir}/#{posts_dir}"
+desc "Begin a new post in #{CONFIG['posts']}"
 task :new_post, :title do |t, args|
-  raise "### Cannot locate the #{posts_dir}." unless File.directory?(posts_dir)
-  mkdir_p "#{jekyll_dir}/#{posts_dir}"
+  abort("rake aborted: '#{CONFIG['posts']}' directory not found.") unless FileTest.directory?(CONFIG['posts'])
   args.with_defaults(:title => 'new-post')
   slug = args.title.downcase.strip.gsub(' ', '-').gsub(/[^\w-]/, '')
-  title = args.title.gsub(/-/,' ')
-  filename = "#{jekyll_dir}/#{posts_dir}/#{Time.now.strftime('%Y-%m-%d')}-#{slug}.#{new_post_ext}"
+  filename = File.join(CONFIG['posts'], "#{Time.now.strftime('%Y-%m-%d')}-#{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}\""
+    post.puts "title: \"#{args.title.gsub(/-/,' ')}\""
     post.puts "comments: true"
     post.puts "category: "
     post.puts "tags: []"
     post.puts "---"
   end
-end
-
-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
+end # task :new_post
 
 desc "Switch between Jekyll-bootstrap themes."
 task :switch_theme, :theme do |t, args|
-  theme_path = File.join(File.dirname(__FILE__), "_includes", "themes", args.theme)
-  layouts_path = File.join(File.dirname(__FILE__), "_layouts")
+  theme_path = File.join(CONFIG['themes'], args.theme)
 
-  abort("rake aborted: './_includes/themes/#{args.theme}' directory not found.") unless FileTest.directory?(theme_path)
-  abort("rake aborted: './_layouts' directory not found.") unless FileTest.directory?(layouts_path)
+  abort("rake aborted: '#{CONFIG['themes']}/#{args.theme}' directory not found.") unless FileTest.directory?(theme_path)
+  abort("rake aborted: '#{CONFIG['layouts']}' directory not found.") unless FileTest.directory?(CONFIG['layouts'])
 
   Dir.glob("#{theme_path}/*") do |filename|
     puts "Generating '#{args.theme}' layout: #{File.basename(filename)}"
 
-    open("#{layouts_path}/#{File.basename(filename)}", 'w') do |page|
+    open(File.join(CONFIG['layouts'], File.basename(filename)), 'w') do |page|
       if File.basename(filename, ".html").downcase == "default"
         page.puts "---"
         page.puts "---"
@@ -73,4 +60,18 @@ end # task :switch_theme
 desc "Launch preview environment"
 task :preview do
   system "jekyll --auto --server"
+end # task :preview
+
+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