require "bundler/gem_tasks" require "jekyll" require "listen" def listen_ignore_paths(base, options) [ /_config\.ya?ml/, /_site/, /\.jekyll-metadata/ ] end def listen_handler(base, options) site = Jekyll::Site.new(options) Jekyll::Command.process_site(site) proc do |modified, added, removed| t = Time.now c = modified + added + removed n = c.length relative_paths = c.map{ |p| Pathname.new(p).relative_path_from(base).to_s } print Jekyll.logger.message("Regenerating:", "#{relative_paths.join(", ")} changed... ") begin Jekyll::Command.process_site(site) puts "regenerated in #{Time.now - t} seconds." rescue => e puts "error:" Jekyll.logger.warn "Error:", e.message Jekyll.logger.warn "Error:", "Run jekyll build --trace for more information." end end end task :preview do base = Pathname.new('.').expand_path options = { "source" => base.join('example').to_s, "destination" => base.join('example/_site').to_s, "force_polling" => false, "serving" => true, "theme" => "minima" } options = Jekyll.configuration(options) ENV["LISTEN_GEM_DEBUGGING"] = "1" listener = Listen.to( base.join("_includes"), base.join("_layouts"), base.join("_sass"), options["source"], :ignore => listen_ignore_paths(base, options), :force_polling => options['force_polling'], &(listen_handler(base, options)) ) begin listener.start Jekyll.logger.info "Auto-regeneration:", "enabled for '#{options["source"]}'" unless options['serving'] trap("INT") do listener.stop puts " Halting auto-regeneration." exit 0 end loop { sleep 1000 } end rescue ThreadError # You pressed Ctrl-C, oh my! end Jekyll::Commands::Serve.process(options) end