Octopress - :mass_edit rake task

Rakefile

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editor = "iA Writer" # Editor to open markdown posts with
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# usage rake mass_edit["category-name"]
desc "Edit all posts with the given category"
task :mass_edit, :category do |t, args|
  args.with_defaults(:category => nil)
  posts = Dir.glob("#{source_dir}/#{posts_dir}/*.*")
  if :category.nil?
    puts "No posts found with that category"
  else
    posts.each do |post|
      puts "Iterating through #{post}..."
      post_data = %x( cat #{post} )
          if post_data.match(/categories: #{args.category}/)
              system "open -a '#{editor}' #{post} &"
          end
    end
  end
end