59 lines
1.8 KiB
Ruby
59 lines
1.8 KiB
Ruby
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# Title: Include Array Tag for Jekyll
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# Author: Jason Woodward http://www.woodwardjd.com
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# Description: Import files on your filesystem as specified in a configuration variable in _config.yml. Mostly cribbed from Jekyll's include tag.
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# Syntax: {% include_array variable_name_from_config.yml %}
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#
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# Example 1:
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# {% include_array asides %}
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#
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# _config.yml snippet:
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# asides: [asides/twitter.html, asides/custom/my_picture.html]
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#
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module Jekyll
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class IncludeArrayTag < Liquid::Tag
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Syntax = /(#{Liquid::QuotedFragment}+)/
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def initialize(tag_name, markup, tokens)
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if markup =~ Syntax
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@array_name = $1
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else
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raise SyntaxError.new("Error in tag 'include_array' - Valid syntax: include_array [array from _config.yml]")
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end
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super
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end
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def render(context)
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includes_dir = File.join(context.registers[:site].source, '_includes')
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if File.symlink?(includes_dir)
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return "Includes directory '#{includes_dir}' cannot be a symlink"
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end
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rtn = ''
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(context.environments.first['site'][@array_name] || []).each do |file|
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if file !~ /^[a-zA-Z0-9_\/\.-]+$/ || file =~ /\.\// || file =~ /\/\./
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rtn = rtn + "Include file '#{file}' contains invalid characters or sequences"
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end
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Dir.chdir(includes_dir) do
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choices = Dir['**/*'].reject { |x| File.symlink?(x) }
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if choices.include?(file)
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source = File.read(file)
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partial = Liquid::Template.parse(source)
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context.stack do
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rtn = rtn + partial.render(context)
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end
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else
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rtn = rtn + "Included file '#{file}' not found in _includes directory"
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end
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end
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end
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rtn
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end
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end
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end
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Liquid::Template.register_tag('include_array', Jekyll::IncludeArrayTag)
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