adding the new_post task, with bugs fixed which were pointed out by @swanson

pradeep1288 · pradeep1288 · commit 6ee3125c179e · 2012-01-16T21:17:25.000+05:30
diff --git a/Rakefile b/Rakefile
@@ -1,6 +1,49 @@
 require "rubygems"
 require 'rake'
 
+## -- Misc Configs --##
+jekyll_dir    = "."
+posts_dir      = "_posts"
+new_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}"
+task :new_post, :title do |t, args|
+  raise "### Cannot locate the #{posts_dir}." unless File.directory?(posts_dir)
+  mkdir_p "#{jekyll_dir}/#{posts_dir}"
+  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}"
+  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 "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
+
 desc "Switch between Jekyll-bootstrap themes."
 task :switch_theme, :theme do |t, args|
   theme_path = File.join(File.dirname(__FILE__), "_includes", "themes", args.theme)
