ThemeBuilder: do not create example site & Rakefile

They're unnecessary -- the theme _is_ a Jekyll site. Just use jekyll build.

lib/jekyll/theme_builder.rb

@@ -16,7 +16,6 @@ class Jekyll::ThemeBuilder
     create_starter_files
     create_gemspec
     create_accessories
-    create_example_site
     initialize_git_repo
   end
 
@@ -57,7 +56,6 @@ class Jekyll::ThemeBuilder
 
   def create_directories
     mkdir_p(SCAFFOLD_DIRECTORIES)
-    mkdir_p(%w(example example/_posts))
   end
 
   def create_starter_files
@@ -72,23 +70,13 @@ class Jekyll::ThemeBuilder
   end
 
   def create_accessories
-    accessories = %w(README.md Rakefile LICENSE.txt)
+    accessories = %w(README.md LICENSE.txt)
     accessories << "CODE_OF_CONDUCT.md" if code_of_conduct
     accessories.each do |filename|
       write_file(filename, template(filename))
     end
   end
 
-  def create_example_site
-    %w(example/_config.yml example/index.html example/style.scss).each do |filename|
-      write_file(filename, template(filename))
-    end
-    write_file(
-      "example/_posts/#{Time.now.strftime("%Y-%m-%d")}-my-example-post.md",
-      template("example/_post.md")
-    )
-  end
-
   def initialize_git_repo
     Jekyll.logger.info "initialize", path.join(".git").to_s
     Dir.chdir(path.to_s) { `git init` }

lib/theme_template/Rakefile.erb

@@ -1,74 +0,0 @@
-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"         => <%= theme_name.inspect %>
-  }
-
-  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