This program can fix Octopress issue #1088 In fact, it is not a bug in Octopress. It is introducted by 3rd party migration tool. However, I have forgotten which tool causes this issue. So I write this program to help others who meet the same issue

issue_1088_fix.rb

# encoding: utf-8

#  description: This program can fix Octopress issue #1088
#               In fact, it is not a bug in Octopress.
#               It is introducted by 3rd party migration tool.
#               However, I have forgotten which tool causes this issue.
#               So I write this program to help others who meet the same issue
#  usage: in your Terminal.app, type the following line:
#         ruby issue_1088_fix.rb [/your/octopress/path/]
#         e.g: ruby issue_1088_fix.rb ~/octopress/source/_posts/
#  Please feel free to contact me, if you find some bugs in this program.
#
#  author: jnozsc
#  email: jnozsc@gmail.com
#

require 'yaml'

if ARGV.size() != 1
  abort "error\nplease provide the path\ne.g: ruby issue_1088_fix.rb ~/octopress/source/_posts/"
end

file_path = ARGV[0].to_s
date_array = Array.new
i = 0

Dir[file_path + '/*.markdown'].each do |file|
  rawfile = File.read(file)
  data = YAML.load rawfile.match(/(^-{3}\n)(.+?)(\n-{3})/m)[2]
  if data.has_key?('date') == false
    i += 1
    date_from_title = /\d{4}-\d{2}-\d{2}/.match(file.to_s)
    hour = 12 # can be changed to any hour you like
    second = 0
    new_string = 'date: ' + date_from_title.to_s + ' ' + hour.to_s + ':' + second.to_s.rjust(2, '0')
    while date_array.include?(new_string)
      second += 1
      if second >= 60
        second -= 60
        hour += 1
      end
      new_string = 'date: ' + date_from_title.to_s + ' ' + hour.to_s + ':' + second.to_s.rjust(2, '0')
    end
    date_array.push(new_string)
    File.open(file) do |f|
      old_file_name = File.basename(f, File.extname(f))
      File.rename(f, file_path + '/' + old_file_name + '.bak')
      f.each_line do |line|
        File.open(file_path + '/' + old_file_name + '.markdown' , 'a+') do |out|
          out.write line
          out.write new_string + "\n" if /#{'title: '}/.match(line)
        end
      end
    end
  end
end

puts 'successfully handle ' + i.to_s + ' file(s)' + "\n" + 'remember to delete .bak file(s)' if i > 0
puts 'nothing need to do' if i == 0