Module: Jekyll::Imgwh::Helpers

Included in:
Jekyll::Imgwh, Tag
Defined in:
lib/jekyll/imgwh/helpers.rb

Instance Method Summary collapse

Instance Method Details

#debug(*messages) ⇒ Object 



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# File 'lib/jekyll/imgwh/helpers.rb', line 15

def debug(*messages)
  messages.each { |message| Jekyll.logger.debug "#{name}:", message }
end

#image_size(src, context) ⇒ Object 



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# File 'lib/jekyll/imgwh/helpers.rb', line 19

def image_size(src, context)
  uri = URI(src)

  if uri.scheme.nil?
    src = resolve_path(CGI.unescape(uri.path), context)
  else
    allowed_schemes = context.registers[:site].config.dig(name, "allowed_schemes") || []
    unless allowed_schemes.include?(uri.scheme)
      raise ArgumentError, "#{name}: URIs with '#{uri.scheme}' scheme are not allowed"
    end
  end

  FastImage.size(src) or raise LoadError, "#{name}: could not get size of image '#{src}'"
end

#name ⇒ Object 



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# File 'lib/jekyll/imgwh/helpers.rb', line 11

def name
  "imgwh"
end

#resolve_path(path, context) ⇒ Object

Raises:

  • (LoadError) 


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# File 'lib/jekyll/imgwh/helpers.rb', line 34

def resolve_path(path, context)
  local_path = path.start_with?("/") ? path : File.join(context.registers[:page]["dir"], path)
  local_path = context.registers[:site].in_source_dir(local_path)
  debug "image path: '#{local_path}'"
  return local_path if File.file?(local_path)

  themed_path = context.registers[:site].in_theme_dir(path) if path.start_with?("/")
  raise LoadError, "#{name}: '#{local_path}' could not be found" unless themed_path

  debug "themed image path: '#{themed_path}'"
  return themed_path if File.file?(themed_path)

  raise LoadError, "#{name}: none of '#{local_path}', '#{themed_path}' could be found"
end