Script to manage modification time stamps of blog files

modtime.rb

=begin

Author: eric-cc-su

This is a Ruby script to add a custom variable for modification time to each post's front matter.
Currently not set up as a plugin, so this will need to be executed manually.
As long as the file modification time of the file matches up with the date of the post, the script
can add or change the mtime variable.

This code is licensed under the MIT License (end of file) and copyrighted by Eric Su
=end

Dir.chdir("../_posts")
Dir.foreach(Dir.pwd){
    |file|
    if not ['.','..'].include?(file)
        filetime = File.ctime(file).to_s
        filedate = /(\d+-\d+-\d+)/.match(filetime)[0]
        writtendate = /(\d+-\d+-\d+)/.match(file)[0]

        if filedate == writtendate
            filehours = /\d+:\d+/.match(filetime)[0]
            mstring = "mtime: " + filehours
            charlength = 0
            fopen = false
            fmat = ""
            text = ""

            File.open(File.expand_path(file), 'r+') do |file|
                file.each_line do |line|
                    if line.include?('---') and fopen == false
                        fopen = true
                    elsif line.include?('---') and fopen == true
                        text = IO.read(file,File.size(file),charlength)
                        break
                    end

                    if line.include?("mtime: ")
                        fmat = IO.read(file, charlength)
                    end

                    charlength += line.length
                end
                if fmat == ""
                    fmat = IO.read(file, charlength)
                end

            end

            File.open(File.expand_path(file), 'w') do |file|
                file.puts(fmat)
                file.puts(mstring)
                file.puts(text)
            end
        end
    end
}

=begin
The MIT License (MIT)

Copyright (c) 2015 Eric Su

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
=end