lib/url_helper.rb spec/url_helper_spec.rb tasks/db.rake web/blues_hero/css/application.css web/blues_hero/helpers/blues_hero_helper.rb web/blues_hero/images/batjeremy.jpg web/blues_hero/images/black_header.png web/blues_hero/images/black_header_with_slogan.png web/blues_hero/images/chris.jpg web/blues_hero/images/hawk-karissa.png web/blues_hero/images/header.png web/blues_hero/images/jeremy.jpg web/blues_hero/images/jocelyn.jpg web/blues_hero/images/karen.jpg web/blues_hero/images/karissa.jpg web/blues_hero/images/kevin.jpg web/blues_hero/images/lessa.jpg web/blues_hero/images/lucy.jpg web/blues_hero/images/menu_bar.png web/blues_hero/images/simple_header.png web/blues_hero/images/solomon.jpg web/blues_hero/images/supertopher.jpg web/blues_hero/images/supertopher_and_batjeremy.jpg web/blues_hero/images/teacher_contact_sheet.jpg web/blues_hero/images/topher.jpg web/blues_hero/index.html.erb web/blues_hero/layouts/application.html.erb web/blues_hero/register.html.erb web/blues_hero/schedule.html.erb web/blues_hero/teachers.html.erb @@ -11,7 +11,11 @@ end desc "generate the site" task :generate do Dir.chdir(File.dirname(__FILE__)) do - SiteGenerator.new("web/facilitation_patterns", "public/facilitation_patterns").generate - SiteGenerator.new("web/challenge", "public/challenge").generate + sites = %w(blues_hero challenge facilitation_patterns) + sites = [ENV["SITE"]] if ENV["SITE"] + + sites.each do |site| + SiteGenerator.new("web/#{site}", "public/#{site}").generate + end end end \ No newline at end of file Rakefile @@ -12,7 +12,8 @@ require 'yaml' $LOAD_PATH << File.expand_path(File.dirname(__FILE__)) require 'extensions/string' +require 'url_helper' require 'site_generator' require 'html_generator' require 'pattern' -require 'pattern_links_extension' \ No newline at end of file +require 'pattern_links_extension' lib/blog.rb @@ -3,78 +3,134 @@ require 'pattern' class HtmlGenerator def initialize(template_directory) @template_directory = template_directory - @context = Context.new - @layout_directory = File.join(template_directory, "layouts") + @global_context = GlobalContext.new load_patterns end - def process(file_name, content, apply_layout = true) + def write_page(in_file, out_file) + File.open(out_file, "w") do |f| + f << process_file(in_file) + end + end + + def process_file(file, context = new_context, apply_layout = true) + process(File.basename(file), File.read(file), context, apply_layout) + rescue + $stderr.puts "error processing #{file}" + raise + end + + def process(file_name, content, context = new_context, apply_layout = true) file_name, extension = file_name.split_filename case extension when 'erb' - content = ERB.new(content, 0, "%<>").result(@context.get_binding) + content = ERB.new(content, 0, "%<>").result(context.get_binding) when 'red' redcloth = RedCloth.new(content) - redcloth.patterns = @context.patterns + redcloth.patterns = context.patterns content = redcloth.to_html(:html, :textile, :refs_patterns) when 'yml' content = YAML::load(content) rescue raise("error reading #{file_name}: #{$!.message}") when 'pattern' - @context.pattern = Pattern.new(file_name.to_sym, content) - content = use_layout("pattern") + context.pattern = Pattern.new(file_name.to_sym, content) + context.layout :pattern + content = process_file(context.layout_template, context, false) + context.layout :application - when 'bald' - return content - when nil - if apply_layout - @context.content = content - return use_layout("application") + if apply_layout && context.layout_template + context.content = content + return process_file(context.layout_template, context, false) else return content end end - return process(file_name, content, apply_layout) + return process(file_name, content, context, apply_layout) end - def use_layout(name) - files = Dir["#{@layout_directory}/#{name}.*"] - raise "couldn't find layout #{name}" if files.empty? - process_file(files.first, false) - end + private def load_patterns - unless @context.patterns - @context.patterns = Patterns.load(@template_directory) - @context.patterns_by_category = {} - @context.patterns.each do |pattern| - (@context.patterns_by_category[pattern.category] ||= []) << pattern + unless @global_context.patterns + @global_context.patterns = Patterns.load(@template_directory) + @global_context.patterns_by_category = {} + @global_context.patterns.each do |pattern| + (@global_context.patterns_by_category[pattern.category] ||= []) << pattern end end end - - def process_file(file, apply_layout = true) - process(File.basename(file), File.read(file), apply_layout) + + def new_context + PageContext.new(@template_directory, @global_context) end - def write_page(in_file, out_file) - File.open(out_file, "w") do |f| - f << process_file(in_file) + class PageContext + include UrlHelper + attr_accessor :global_context, :layout_template, :pattern, :content + + def initialize(template_directory, global_context) + @template_directory, @global_context = template_directory, global_context + layout(:application) rescue nil end - end - class Context - attr_accessor :pattern, :patterns, :patterns_by_category, :content + def layout(name) + if name + files = Dir[File.join(@template_directory, 'layouts', "#{name}.*")] + raise "couldn't find layout #{name}" if files.empty? + @layout_template = files.first + else + @layout_template = nil + end + end + + def helper(name) + file_name = "#{name}_helper" + class_name = file_name.classify + helper = begin + class_name.constantize + rescue NameError # this constant hasn't been loaded yet + require File.join(@template_directory, "helpers", file_name) + class_name.constantize + end + + metaclass.send(:include, helper) + end + + def content_for(name) + metaclass.send(:attr_accessor, "content_for_#{name}".to_sym) + send("content_for_#{name}=".to_sym, yield) + end def get_binding binding end + def method_missing(sym, *args) + return @global_context.send(sym, *args) if @global_context.respond_to?(sym) + + name = sym.to_s + if name.starts_with?("content_for_") && name.ends_with?("?") + return !!instance_variable_get("@#{name[0..-2]}") + end + + super + end + + private + + def metaclass + class << self; self; end # according to why... + end + end + + class GlobalContext + attr_accessor :patterns, :patterns_by_category + def link_to(name, url = nil) url ||= name + ".html" "<a href='#{url}'>#{name}</a>" lib/html_generator.rb @@ -33,7 +33,7 @@ class SiteGenerator end def excluded?(file) - File.basename(file) == "layouts" + File.directory?(file) && %w(layouts helpers).include?(File.basename(file)) end def resource?(file) lib/site_generator.rb @@ -1,2 +1,3 @@ facilitation_patterns -challenge \ No newline at end of file +challenge +blues_hero public/.gitignore @@ -1,7 +1,82 @@ require File.dirname(__FILE__) + '/spec_helper' describe HtmlGenerator do + include FileSandbox + attr_reader :generator + before do - @gen = HtmlGenerator.new(nil) + @generator = HtmlGenerator.new(sandbox.root) + end + + describe "layouts" do + it "should show html w/ default layout" do + sandbox.new :file => 'layouts/application.html.erb', + :with_contents => "<html><body><%= content %></body></html>" + + process("*.html", "foobar").should == "<html><body>foobar</body></html>" + end + + it "should be able to specify a layout" do + sandbox.new :file => 'layouts/my_layout.html.erb', + :with_contents => "<html><%= content %></html>" + + process("*.html.erb", "% layout 'my_layout'\nfoobar").should == + "<html>foobar</html>" + process("*.html.erb", "% layout :my_layout\nfoobar").should == + "<html>foobar</html>" + end + + it "should forget about layout after layout is specified" do + sandbox.new :file => 'layouts/application.html.erb', :with_contents => "app" + sandbox.new :file => 'layouts/foo.html.erb', :with_contents => "foo" + + process("*.html", "").should == "app" + process("*.html.erb", "% layout 'foo'").should == "foo" + process("*.html", "").should == "app" + end + + it "should allow a nil layout" do + process("*.html.erb", "% layout nil\nsomething").should == "something" + process("*.html.erb", "% layout false\nsomething").should == "something" + end + end + + describe "helpers" do + before do + sandbox.new :file => 'helpers/test_helper.rb', :with_contents => " + module TestHelper + def some_test_method + 'hello world' + end + end" + sandbox.new :file => "layouts/application.html.erb", + :with_contents => "<%= content %>" + end + + it "should be able to use a helper" do + process("*.html.erb", "% helper 'test'\n<%= some_test_method %>"). + should == "hello world" + end + end + + describe "content_for" do + it "should remember a string value" do + sandbox.new :file => "layouts/application.html.erb", + :with_contents => "head:<%= content_for_head %>" + process("*.html.erb", "% content_for(:head) { 'bob' }").should == "head:bob" + end + + it "should know if there is content for a given key" do + sandbox.new :file => "layouts/application.html.erb", + :with_contents => "head:<%= content_for_head? %>, tail:<%= content_for_tail? %>" + + process("*.html.erb", "").should == "head:false, tail:false" + process("*.html.erb", "% content_for(:tail) { 'a' }").should == "head:false, tail:true" + process("*.html.erb", "% content_for(:head) { 'bob' }\n% content_for(:tail) {'a'}").should == "head:true, tail:true" + end + end + + def process(extensions, content) + generator.process(extensions, content) end end \ No newline at end of file spec/html_generator_spec.rb @@ -2,3 +2,6 @@ require File.dirname(__FILE__) + "/../lib/blog" gem 'rspec' require 'spec' + +gem 'file_sandbox', '>= 0.4' +require 'file_sandbox_behavior' spec/spec_helper.rb @@ -18,7 +18,7 @@ <%= link_to "the concept", "concept.html" %> <%= link_to "the schedule", "schedule.html" %> <%= link_to "the teachers", "teachers.html" %> - <%= link_to "register" %> + <%= link_to "register", "register.html" %> </div> <div class="left_side"> <%= content %> web/challenge/layouts/application.html.erb lib/tasks/db.rake dabfc23c51035776bbe0c1b16bcfea123031e035 jeremylightsmith jeremy.lightsmith@gmail.com http://github.com/jeremylightsmith/blog/commit/cdab3b93433df4f8a1569c3ca83b589a3a65fcb9 cdab3b93433df4f8a1569c3ca83b589a3a65fcb9 2008-11-03T00:25:29-08:00 2008-11-03T00:25:29-08:00 generalized stuff dcbd978395b285c5b4a78502fe848137cc711c27 jeremylightsmith jeremy.lightsmith@gmail.com