89 lines
2.7 KiB
Ruby
89 lines
2.7 KiB
Ruby
module Jekyll
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class TagIndex < Page
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def initialize(site, base, dir, tag)
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@site = site
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@base = base
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@dir = dir
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@name = 'index.html'
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process(@name)
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read_yaml(File.join(base, '_layouts'), 'tag_index.html')
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data['tag'] = tag
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tag_title_prefix = site.config['tag_title_prefix'] || 'Posts Tagged “'
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tag_title_suffix = site.config['tag_title_suffix'] || '”'
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data['title'] = "#{tag_title_prefix}#{tag}#{tag_title_suffix}"
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end
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end
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class TagFeed < Page
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def initialize(site, base, tag_dir, tag)
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@site = site
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@base = base
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@dir = tag_dir
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@name = 'atom.xml'
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process(@name)
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# Read the YAML data from the layout page.
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read_yaml(File.join(base, '_layouts'), 'tag_feed.xml')
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data['tag'] = tag
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# Set the title for this page.
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tag_title_prefix = site.config['tag_title_prefix'] || 'Posts Tagged “'
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tag_title_suffix = site.config['tag_title_suffix'] || '”'
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data['title'] = "#{tag_title_prefix}#{tag}#{tag_title_suffix}"
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# Set the meta-description for this page.
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# Set the correct feed URL.
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data['feed_url'] = "#{tag_dir}/#{name}"
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end
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end
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class TagGenerator < Generator
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safe true
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def generate(site)
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return unless site.layouts.key? 'tag_index'
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dir = site.config['tag_dir'] || 'tag'
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site.tags.keys.each do |tag|
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dest_dir = File.join(dir, tag.tr(' ', '-'))
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write_tag_index(site, dest_dir, tag)
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write_tag_feed(site, dest_dir, tag)
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end
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end
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def write_tag_index(site, dir, tag)
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index = TagIndex.new(site, site.source, dir, tag)
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index.render(site.layouts, site.site_payload)
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index.write(site.dest)
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site.pages << index
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end
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def write_tag_feed(site, dir, tag)
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feed = TagFeed.new(site, site.source, dir, tag)
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feed.render(site.layouts, site.site_payload)
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feed.write(site.dest)
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site.pages << feed
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end
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end
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# Adds some extra filters used during the category creation process.
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module TagFilter
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# Outputs a list of categories as comma-separated <a> links. This is used
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# to output the category list for each post on a category page.
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#
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# +categories+ is the list of categories to format.
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#
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# Returns string
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#
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def tag_links(tags)
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tags = tags.sort!.map do |item|
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page_url = @context.registers[:page]['url']
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item.tr!(' ', '-')
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tag_path = "/tag/#{item}"
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"<a class='p-category' href='#{Pathname(tag_path).relative_path_from(Pathname(page_url))}'>#{item}</a>"
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end
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tags.join(', ')
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end
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end
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end
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Liquid::Template.register_filter(Jekyll::TagFilter)
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