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132 lines
3.6 KiB
132 lines
3.6 KiB
# Jekyll sitemap page generator.
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# http://recursive-design.com/projects/jekyll-plugins/
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#
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# Version: 0.1.3 (201101061053)
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#
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# Copyright (c) 2010 Dave Perrett, http://recursive-design.com/
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# Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php)
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#
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# A generator that creates a sitemap.xml page for jekyll sites, suitable for submission to
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# google etc.
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#
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# To use it, simply drop this script into the _plugins directory of your Jekyll site.
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#
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# When you compile your jekyll site, this plugin will loop through the list of pages in your
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# site, and generate an entry in sitemap.xml for each one.
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require 'pathname'
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module Jekyll
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# Monkey-patch an accessor for a page's containing folder, since
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# we need it to generate the sitemap.
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class Page
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def subfolder
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@dir
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end
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end
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# Sub-class Jekyll::StaticFile to allow recovery from unimportant exception
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# when writing the sitemap file.
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class StaticSitemapFile < StaticFile
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def write(dest)
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super(dest) rescue ArgumentError
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true
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end
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end
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# Generates a sitemap.xml file containing URLs of all pages and posts.
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class SitemapGenerator < Generator
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safe true
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priority :low
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# Domain that you are generating the sitemap for - update this to match your site.
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BASE_URL = 'http://recursive-design.com'
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# Generates the sitemap.xml file.
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#
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# +site+ is the global Site object.
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def generate(site)
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# Create the destination folder if necessary.
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site_folder = site.config['destination']
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unless File.directory?(site_folder)
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p = Pathname.new(site_folder)
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p.mkdir
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end
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# Write the contents of sitemap.xml.
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File.open(File.join(site_folder, 'sitemap.xml'), 'w') do |f|
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f.write(generate_header())
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f.write(generate_content(site))
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f.write(generate_footer())
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f.close
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end
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# Add a static file entry for the zip file, otherwise Site::cleanup will remove it.
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site.static_files << Jekyll::StaticSitemapFile.new(site, site.dest, '/', 'sitemap.xml')
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end
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private
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# Returns the XML header.
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def generate_header
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"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">"
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end
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# Returns a string containing the the XML entries.
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#
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# +site+ is the global Site object.
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def generate_content(site)
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result = ''
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# First, try to find any stand-alone pages.
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site.pages.each{ |page|
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path = page.subfolder + '/' + page.name
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mod_date = File.mtime(site.source + path)
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# Remove the trailing 'index.html' if there is one, and just output the folder name.
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if path=~/index.html$/
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path = path[0..-11]
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end
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unless path =~/error/
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result += entry(path, mod_date)
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end
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}
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# Next, find all the posts.
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posts = site.site_payload['site']['posts']
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for post in posts do
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result += entry(post.id, post.date)
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end
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result
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end
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# Returns the XML footer.
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def generate_footer
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"\n</urlset>"
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end
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# Creates an XML entry from the given path and date.
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#
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# +path+ is the URL path to the page.
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# +date+ is the date the file was modified (in the case of regular pages), or published (for blog posts).
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def entry(path, date)
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# Force extensions to .html from markdown, textile.
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path = path.gsub(/\.(markdown|textile)$/i, '.html')
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"
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<url>
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<loc>#{BASE_URL}#{path}</loc>
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<lastmod>#{date.strftime("%Y-%m-%d")}</lastmod>
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</url>"
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end
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end
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end
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