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