/inline-css.rb
Last active Jan 17, 2018
Script to scan a directory for HTML files, inlining stylesheets into <head>. Useful for Middleman sites.
| require "pathname" | |
| require "nokogiri" | |
| def inline_css(html_file, root) | |
| doc = File.open(html_file) { |f| Nokogiri::HTML(f) } | |
| stylesheet_tags = doc.css("link[rel=stylesheet]") | |
| puts "Inlining css in #{html_file}" if stylesheet_tags.any? | |
| stylesheet_tags.each do |stylesheet_tag| | |
| href = stylesheet_tag["href"] | |
| href = href[1..-1] if Pathname.new(href).absolute? | |
| css_file_path = File.expand_path(href, root) | |
| css = File.read(css_file_path) | |
| style_tag = Nokogiri::XML::Node.new "style", doc | |
| style_tag.content = css | |
| stylesheet_tag.add_previous_sibling style_tag | |
| stylesheet_tag.remove | |
| end | |
| File.write(html_file, doc.to_s) | |
| end | |
| root = "build/" | |
| Dir.glob(File.join(root, "**", "*.html")).each do |html_file| | |
| inline_css(html_file, root) | |
| end |
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