Class: Jekyll::Podcast::FileExistsTag

Inherits:
Liquid::Tag
  • Object
show all
Defined in:
lib/jekyll/podcast/file_exists.rb

Overview

Liquid tag to determine the existence of a file Path name should be the root of the directory, without an initial slash

Instance Method Summary collapse

Constructor Details

#initialize(tag_name, path, tokens) ⇒ FileExistsTag

Returns a new instance of FileExistsTag.



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# File 'lib/jekyll/podcast/file_exists.rb', line 8

def initialize(tag_name, path, tokens)
  super
  @path = path
end

Instance Method Details

#render(context) ⇒ Object 



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# File 'lib/jekyll/podcast/file_exists.rb', line 13

def render(context)
  # Pipe parameter through Liquid to make additional replacements possible
  url = Liquid::Template.parse(@path).render context

  # Add the site source, so that it also works with a custom one
  site_source = context.registers[:site].config['source']
  file_path = "#{site_source}/#{url}"

  # Check if file exists (returns true or false)
  File.exist?(file_path.strip!).to_s
end