# Sitemap.xml Generator is a Jekyll plugin that generates a sitemap.xml file by

# traversing all of the available posts and pages.

# 

# How To Use:

#   1) Copy source file into your _plugins folder within your Jekyll project.

#   2) Change modify the url variable in _config.yml to reflect your domain name.

#   3) Run Jekyll: jekyll --server to re-generate your site.

#

# Variables:

#   * Change SITEMAP_FILE_NAME if you want your sitemap to be called something

#     other than sitemap.xml.

#   * Change the PAGES_INCLUDE_POSTS list to include any pages that are looping

#     through your posts (e.g. "index.html", "archive.html", etc.). This will

#     ensure that right after you make a new post, the last modified date will

#     be updated to reflect the new post.

#   * A sitemap.xml should be included in your _site folder.

#   * If there are any files you don't want included in the sitemap, add them

#     to the EXCLUDED_FILES list. The name should match the name of the source

#     file.

#   * If you want to include the optional changefreq and priority attributes,

#     simply include custom variables in the YAML Front Matter of that file.

#     The names of these custom variables are defined below in the

#     CHANGE_FREQUENCY_CUSTOM_VARIABLE_NAME and PRIORITY_CUSTOM_VARIABLE_NAME

#     constants.

#

# Notes:

#   * The last modified date is determined by the latest from the following:

#     system modified date of the page or post, system modified date of

#     included layout, system modified date of included layout within that

#     layout, ...

# 

# Author: Michael Levin

# Site: http://www.kinnetica.com

# Distributed Under A Creative Commons License

#   - http://creativecommons.org/licenses/by/3.0/

# 

# Modified for Octopress by John W. Long

#

require 'rexml/document'

require 'fileutils'

module Jekyll

  # Change SITEMAP_FILE_NAME if you would like your sitemap file

  # to be called something else

  SITEMAP_FILE_NAME = "sitemap.xml"

  # Any files to exclude from being included in the sitemap.xml

  EXCLUDED_FILES = ["atom.xml"]

  # Any files that include posts, so that when a new post is added, the last

  # modified date of these pages should take that into account

  PAGES_INCLUDE_POSTS = ["index.html"]

  # Custom variable names for changefreq and priority elements

  # These names are used within the YAML Front Matter of pages or posts

  # for which you want to include these properties

  CHANGE_FREQUENCY_CUSTOM_VARIABLE_NAME = "change_frequency"

  PRIORITY_CUSTOM_VARIABLE_NAME = "priority"

  class Post

    attr_accessor :name

    def full_path_to_source

      File.join(@base, @name)

    end

    def location_on_server

      "#{site.config['url']}#{url}"

    end

  end

  class Page

    attr_accessor :name

    def full_path_to_source

      File.join(@base, @dir, @name)

    end

    def location_on_server

      location = "#{site.config['url']}#{@dir}#{url}"

      location.gsub(/index.html$/, "")

    end

  end

  class Layout

    def full_path_to_source

      File.join(@base, @name)

    end

  end

  # Recover from strange exception when starting server without --auto

  class SitemapFile < StaticFile

    def write(dest)

      begin

        super(dest)

      rescue

      end

      true

    end

  end