Init

lib/blogging.rb

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+module Nanoc3::Helpers::Blogging
+  # Patch to add analytics param to feed urls
+  alias url_for_without_analytics url_for
+  def url_for(item)
+    url = url_for_without_analytics(item)
+    url.sub(/(\.html|\/)$/, '') + '?utm_source=feed'
+  end
+end

lib/default.rb

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+require 'nanoc/cachebuster'
+require 'slim'
+require 'redcarpet'
+
+include Nanoc3::Helpers::Rendering
+include Nanoc3::Helpers::XMLSitemap
+include Nanoc3::Helpers::Blogging
+include Nanoc3::Helpers::Filtering
+include Nanoc3::Helpers::LinkTo
+include Nanoc3::Helpers::CacheBusting
+
+Slim::Engine.set_default_options pretty: true

lib/markdown_html.rb

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+require 'pygments.rb'
+
+RubyPython.start python_exe: 'python2.6' if ENV['RACK_ENV'] == 'production'
+
+class MarkdownHTML < Redcarpet::Render::HTML
+  def block_code(code, language)
+    Pygments.highlight(code, lexer: language)
+  end
+end

lib/meta.rb

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+# Source: https://github.com/avdgaag/nanoc-template/blob/master/lib/preprocessors.rb
+
+
+# Generate a sitemap.xml file using Nanoc's own xml_sitemap helper method by
+# dynamically adding a new item.
+#
+# Make items that should not appear in the sitemap hidden. This by default
+# works on all image files and typical assets, as well as error pages and
+# htaccess. The is_hidden attribute is only explicitly set if it is absent,
+# allowing per-file overriding.
+#
+# @todo extract hidden file types into configuration file?
+def create_sitemap
+  return unless @site.config[:output_generated_assets]
+
+  @items.each do |item|
+    if %w{png gif jpg jpeg coffee scss sass less css xml js txt ico}.include?(item[:extension]) ||
+        item.identifier =~ /404|500|htaccess/
+      item[:is_hidden] = true unless item.attributes.has_key?(:is_hidden)
+    end
+  end
+  @items << Nanoc3::Item.new(
+    "<%= xml_sitemap %>",
+    { :extension => 'xml', :is_hidden => true },
+    '/sitemap/'
+  )
+end
+
+# Use special settings from the site configuration to generate the files
+# necessary for various webmaster tools authentications, such as the services
+# from Google, Yahoo and Bing.
+#
+# This loops through all the items in the `webmaster_tools` setting, using
+# its properties to generate a new item.
+#
+# See config.yaml for more documentation on the input format.
+def create_webmaster_tools_authentications
+  return unless @site.config[:output_generated_assets]
+
+  @site.config[:webmaster_tools].each do |file|
+    next if file[:identifier].nil?
+    content    = file.delete(:content)
+    identifier = file.delete(:identifier)
+    file.merge!(:is_hidden => true)
+    @items << Nanoc3::Item.new(
+      content,
+      file,
+      identifier
+    )
+  end
+end
+
+# Generate a robots.txt file in the root of the site by dynamically creating
+# a new item.
+#
+# This will either output a default robots.txt file, that disallows all
+# assets except images, and points to the sitemap file.
+#
+# You can override the contents of the output of this method using the site
+# configuration, specifying Allow and Disallow directives. See the config.yaml
+# file for more information on the expected input format.
+def create_robots_txt
+  return unless @site.config[:output_generated_assets]
+
+  if @site.config[:robots]
+    content = if @site.config[:robots][:default]
+      <<-EOS
+User-agent: *
+Allow: *
+Sitemap: #{@site.config[:base_url]}/sitemap.xml
+      EOS
+    else
+      [
+        'User-Agent: *',
+        @site.config[:robots][:disallow].map { |l| "Disallow: #{l}" },
+        (@site.config[:robots][:allow] || []).map { |l| "Allow: #{l}" },
+        "Sitemap: #{@site.config[:robots][:sitemap]}"
+      ].flatten.compact.join("\n")
+    end
+    @items << Nanoc3::Item.new(
+      content,
+      { :extension => 'txt', :is_hidden => true },
+      '/robots/'
+    )
+  end
+end

lib/shellcmd.rb

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+require 'open3'
+
+# This nanoc filter is a general purpose filter that simply pipes
+# the contents of an item into a given shell command, and sets
+# the items output to the output of it.
+#
+# It is NOT safe to use on large inputs, which will cause I/O
+# deadlocks. Any safer implementation is encouraged.
+#
+# Usage:
+#
+# compile '/static/js/*/' do
+# # minify JS :)
+# filter :shellcmd, "java -jar js-compiler.jar"
+# end
+#
+# Written by Vincent Driessen (http://twitter.com/nvie) and
+# released to the public domain.
+#
+# http://nvie.com
+class ShellCmdFilter < Nanoc3::Filter
+  identifier :shellcmd
+
+  def run(content, params)
+    Open3.popen3(params[:cmd]) do |stdin, stdout, stderr|
+      stdin.write(content)
+      stdin.close
+      stdout.read
+    end
+  end
+end

lib/xml_sitemap.rb

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+# Source: https://github.com/ddfreyne/nanoc/blob/master/lib/nanoc/helpers/xml_sitemap.rb
+# hacked to remove trailing slash
+module Nanoc::Helpers
+
+  # Contains functionality for building XML sitemaps that will be crawled by
+  # search engines. See the [Sitemaps protocol site](http://www.sitemaps.org)
+  # for details.
+  module XMLSitemap
+
+    # Builds an XML sitemap and returns it.
+    #
+    # The following attributes can optionally be set on items to change the
+    # behaviour of the sitemap:
+    #
+    # * `changefreq` — The estimated change frequency as defined by the
+    #   Sitemaps protocol
+    #
+    # * `priority` — The item's priority, ranging from 0.0 to 1.0, as defined
+    #   by the Sitemaps protocol
+    #
+    # The sitemap will also include dates on which the items were updated.
+    # These are generated automatically; the way this happens depends on the
+    # used data source (the filesystem data source checks the file mtimes, for
+    # instance).
+    #
+    # The site configuration will need to have the following attributes:
+    #
+    # * `base_url` — The URL to the site, without trailing slash. For example,
+    #   if the site is at "http://example.com/", the `base_url` would be
+    #   "http://example.com".
+    #
+    # @example Excluding binary items from the sitemap
+    #
+    #   <%= xml_sitemap :items => @items.reject{ |i| i[:is_hidden] || i.binary? } %>
+    #
+    # @option params [Array] :items A list of items to include in the sitemap
+    #
+    # @return [String] The XML sitemap
+    def xml_sitemap(params={})
+      require 'builder'
+
+      # Extract parameters
+      items = params[:items] || @items.reject { |i| i[:is_hidden] }
+
+      # Create builder
+      buffer = ''
+      xml = Builder::XmlMarkup.new(:target => buffer, :indent => 2)
+
+      # Check for required attributes
+      if @site.config[:base_url].nil?
+        raise RuntimeError.new("The Nanoc::Helpers::XMLSitemap helper requires the site configuration to specify the base URL for the site.")
+      end
+
+      # Build sitemap
+      xml.instruct!
+      xml.urlset(:xmlns => 'http://www.sitemaps.org/schemas/sitemap/0.9') do
+        # Add item
+        items.each do |item|
+          item.reps.reject { |r| r.raw_path.nil? }.each do |rep|
+            xml.url do
+              xml.loc         @site.config[:base_url] + rep.path.sub(/(\.html|\/)$/, '')
+              xml.lastmod     item.mtime.to_iso8601_date unless item.mtime.nil?
+              xml.changefreq  item[:changefreq] unless item[:changefreq].nil?
+              xml.priority    item[:priority] unless item[:priority].nil?
+            end
+          end
+        end
+      end
+
+      # Return sitemap
+      buffer
+    end
+
+  end
+
+end