Module: Jekyll::Compressor

Included in:
Document, Page, StaticFile
Defined in:
lib/jekyll-minifier.rb

Instance Method Summary collapse

Instance Method Details

#output_compressed(path, context) ⇒ Object 



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# File 'lib/jekyll-minifier.rb', line 15

def output_compressed(path, context)
  case File.extname(path)
    when '.js'
      if path.end_with?('.min.js')
        output_file(path, context)
      else
        output_js(path, context)
      end
    when '.json'
      output_json(path, context)
    when '.css'
      if path.end_with?('.min.css')
        output_file(path, context)
      else
        output_css(path, context)
      end
    else
      output_html(path, context)
  end
end

#output_css(path, content) ⇒ Object 



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# File 'lib/jekyll-minifier.rb', line 140

def output_css(path, content)
  if ( ENV['JEKYLL_ENV'] == "production" )
    opts       = @site.config['jekyll-minifier']
    compress = true
    if ( !opts.nil? )
      compress    = opts['compress_css']               if opts.has_key?('compress_css')
    end
    if ( compress )
      compressor = CSSminify2.new()
      # Pass nil to disable line breaks completely for performance (PR #61)
      output_file(path, compressor.compress(content, nil))
    else
      output_file(path, content)
    end
  else
    output_file(path, content)
  end

end

#output_file(dest, content) ⇒ Object 



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# File 'lib/jekyll-minifier.rb', line 8

def output_file(dest, content)
  FileUtils.mkdir_p(File.dirname(dest))
  File.open(dest, 'w') do |f|
    f.write(content)
  end
end

#output_html(path, content) ⇒ Object 



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# File 'lib/jekyll-minifier.rb', line 36

def output_html(path, content)
  if ( ENV['JEKYLL_ENV'] == "production" )
    html_args = { remove_comments: true, compress_css: true, compress_javascript: true, preserve_patterns: [] }
    js_args = {}

    opts = @site.config['jekyll-minifier']
    if ( !opts.nil? )
      # Javascript Arguments (support both terser_args and uglifier_args for backward compatibility)
      terser_options = opts['terser_args'] || opts['uglifier_args']
      if terser_options && terser_options.respond_to?(:map)
        # Filter out Uglifier-specific options that don't have Terser equivalents
        filtered_options = terser_options.reject { |k, v| k.to_s == 'harmony' }
        js_args[:terser_args] = Hash[filtered_options.map{|(k,v)| [k.to_sym,v]}] unless filtered_options.empty?
      end

      # HTML Arguments
      html_args[:remove_spaces_inside_tags]   = opts['remove_spaces_inside_tags']  if opts.has_key?('remove_spaces_inside_tags')
      html_args[:remove_multi_spaces]         = opts['remove_multi_spaces']        if opts.has_key?('remove_multi_spaces')
      html_args[:remove_comments]             = opts['remove_comments']            if opts.has_key?('remove_comments')
      html_args[:remove_intertag_spaces]      = opts['remove_intertag_spaces']     if opts.has_key?('remove_intertag_spaces')
      html_args[:remove_quotes]               = opts['remove_quotes']              if opts.has_key?('remove_quotes')
      html_args[:compress_css]                = opts['compress_css']               if opts.has_key?('compress_css')
      html_args[:compress_javascript]         = opts['compress_javascript']        if opts.has_key?('compress_javascript')
      html_args[:simple_doctype]              = opts['simple_doctype']             if opts.has_key?('simple_doctype')
      html_args[:remove_script_attributes]    = opts['remove_script_attributes']   if opts.has_key?('remove_script_attributes')
      html_args[:remove_style_attributes]     = opts['remove_style_attributes']    if opts.has_key?('remove_style_attributes')
      html_args[:remove_link_attributes]      = opts['remove_link_attributes']     if opts.has_key?('remove_link_attributes')
      html_args[:remove_form_attributes]      = opts['remove_form_attributes']     if opts.has_key?('remove_form_attributes')
      html_args[:remove_input_attributes]     = opts['remove_input_attributes']    if opts.has_key?('remove_input_attributes')
      html_args[:remove_javascript_protocol]  = opts['remove_javascript_protocol'] if opts.has_key?('remove_javascript_protocol')
      html_args[:remove_http_protocol]        = opts['remove_http_protocol']       if opts.has_key?('remove_http_protocol')
      html_args[:remove_https_protocol]       = opts['remove_https_protocol']      if opts.has_key?('remove_https_protocol')
      html_args[:preserve_line_breaks]        = opts['preserve_line_breaks']       if opts.has_key?('preserve_line_breaks')
      html_args[:simple_boolean_attributes]   = opts['simple_boolean_attributes']  if opts.has_key?('simple_boolean_attributes')
      html_args[:compress_js_templates]       = opts['compress_js_templates']      if opts.has_key?('compress_js_templates')
      html_args[:preserve_patterns]          += [/<\?php.*?\?>/im]                 if opts['preserve_php'] == true
      html_args[:preserve_patterns]          += opts['preserve_patterns'].map { |pattern| Regexp.new(pattern)} if opts.has_key?('preserve_patterns') && opts['preserve_patterns'] && opts['preserve_patterns'].respond_to?(:map)
    end

    html_args[:css_compressor]              = CSSminify2.new()

    if ( !js_args[:terser_args].nil? )
      html_args[:javascript_compressor]       = ::Terser.new(js_args[:terser_args])
    else
      html_args[:javascript_compressor]       = ::Terser.new()
    end

    compressor = HtmlCompressor::Compressor.new(html_args)
    output_file(path, compressor.compress(content))
  else
    output_file(path, content)
  end
end

#output_js(path, content) ⇒ Object 



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# File 'lib/jekyll-minifier.rb', line 90

def output_js(path, content)
  if ( ENV['JEKYLL_ENV'] == "production" )
    js_args  = {}
    opts     = @site.config['jekyll-minifier']
    compress = true
    if ( !opts.nil? )
      compress                = opts['compress_javascript']                           if opts.has_key?('compress_javascript')
      # Support both terser_args and uglifier_args for backward compatibility
      terser_options = opts['terser_args'] || opts['uglifier_args']
      if terser_options && terser_options.respond_to?(:map)
        # Filter out Uglifier-specific options that don't have Terser equivalents
        filtered_options = terser_options.reject { |k, v| k.to_s == 'harmony' }
        js_args[:terser_args] = Hash[filtered_options.map{|(k,v)| [k.to_sym,v]}] unless filtered_options.empty?
      end
    end

    if ( compress )
      if ( !js_args[:terser_args].nil? )
        compressor = ::Terser.new(js_args[:terser_args])
      else
        compressor = ::Terser.new()
      end

      output_file(path, compressor.compile(content))
    else
      output_file(path, content)
    end
  else
    output_file(path, content)
  end
end

#output_json(path, content) ⇒ Object 



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# File 'lib/jekyll-minifier.rb', line 122

def output_json(path, content)
  if ( ENV['JEKYLL_ENV'] == "production" )
    opts       = @site.config['jekyll-minifier']
    compress = true
    if ( !opts.nil? )
      compress    = opts['compress_json']               if opts.has_key?('compress_json')
    end

    if ( compress )
      output_file(path, JSON.minify(content))
    else
      output_file(path, content)
    end
  else
    output_file(path, content)
  end
end