Class: Jekyll::IncludeTag

Inherits:
Liquid::Tag
  • Object
show all
Defined in:
lib/jekyll/tags/include.rb

Constant Summary collapse

Syntax = 
/from\s+(#{Liquid::VariableSignature}+)/

Instance Method Summary collapse

Constructor Details

#initialize(tag_name, markup, tokens) ⇒ IncludeTag

Returns a new instance of IncludeTag.



6
7
8
9
10
11
12
13
14
15
 
# File 'lib/jekyll/tags/include.rb', line 6

def initialize(tag_name, markup, tokens)
  super
  if markup =~ Syntax
    @variable = $1
    @use_context = 1
  else
    @file = markup.strip
    @use_context = 0
  end
end

Instance Method Details

#render(context) ⇒ Object 



17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/jekyll/tags/include.rb', line 17

def render(context)
  if @use_context == 1
    @file = context[@variable]
  end

  if @file !~ /^[a-zA-Z0-9_\/\.-]+$/ || @file =~ /\.\// || @file =~ /\/\./
    return "Include file '#{@file}' contains invalid characters or sequences"
  end

  path = File.join(Jekyll.source, '_includes')

  # this doesn't ever seem to work right. seems to be a variable scoping issue
  if Jekyll.site && Jekyll.site.options && Jekyll.site.options['include_path']
     puts "Using options"
     path = Jekyll.site.options['include_path']
  end

  Dir.chdir(path) do
    choices = Dir['**/*'].reject { |x| File.symlink?(x) }
    if choices.include?(@file)
      source = File.read(@file)
      partial = Liquid::Template.parse(source)
      context.stack do
        partial.render(context, [Jekyll::Filters])
      end
    else
      "Included file '#{@file}' not found in _includes directory"
    end
  end
end