lib/awestruct/engine.rb in awestructx-0.4.0 vs lib/awestruct/engine.rb in awestructx-0.4.1.x1

@@ -8,10 +8,11 @@
 require 'awestruct/page_loader'
 
 require 'awestruct/extensions/pipeline'
 
 require 'fileutils'
+require 'set'
 
 class OpenStruct
   def inspect
     "OpenStruct{...}"
   end
@@ -36,29 +37,44 @@
       Engine.instance = self
       @site = Site.new( self, config)
       @pipeline = Pipeline.new
       @site_page_loader = PageLoader.new( @site )
       @layout_page_loader = PageLoader.new( @site, :layouts )
-      adjust_load_path
     end
 
     def config
       site.config
     end
 
     def run(profile, base_url, default_base_url, force=false)
+      adjust_load_path
       load_site_yaml(profile)
       set_base_url( base_url, default_base_url )
       load_yamls
       load_pipeline
       load_pages
       execute_pipeline
       configure_compass
       set_urls( site.pages )
+      build_page_index
       generate_output
     end
 
+    def build_page_index
+      site.pages_by_relative_source_path = {}
+      site.pages.each do |p|
+        if ( p.relative_source_path )
+          site.pages_by_relative_source_path[ p.relative_source_path ] = p
+        end
+      end
+      site.layouts.each do |p|
+        if ( p.relative_source_path )
+          site.pages_by_relative_source_path[ p.relative_source_path ] = p
+        end
+      end
+    end
+
     def set_base_url(base_url, default_base_url)
       if ( base_url )
         site.base_url = base_url
       end
 
@@ -189,30 +205,50 @@
     def generate_output
       @site.pages.each do |page|
         generated_path = File.join( site.config.output_dir, page.output_path )
         if ( page.stale_output?( generated_path ) )
           generate_page( page, generated_path )
+        else
+          generate_page( page, generated_path, false )
         end
       end
     end
 
-    def generate_page(page, generated_path)
-      puts "Generating: #{generated_path}"
-      FileUtils.mkdir_p( File.dirname( generated_path ) )
-      File.open( generated_path, 'w' ) do |file|
-        file << page.rendered_content
+    def generate_page(page, generated_path, produce_output=true)
+      if ( produce_output )
+        puts "Generating: #{generated_path}"
+        FileUtils.mkdir_p( File.dirname( generated_path ) )
+        File.open( generated_path, 'w' ) do |file|
+          file << page.rendered_content
+        end
+      elsif ( site.config.track_dependencies )
+        if page.dependencies.load!
+          puts "Cached:     #{generated_path}"
+        else
+          puts "Analyzing:  #{generated_path}"
+          page.rendered_content
+        end
       end
     end
 
     def generate_page_by_output_path(path)
       full_path = File.join( '', path )
-      #puts "regen path #{full_path}"
-      page = site.pages.find{|p| p.relative_source_path.to_s==full_path}
-      if ( page.nil? )
-        #puts "Unable to locate page for #{path}"
-      else
-        generated_path = File.join( site.config.output_dir, page.output_path )
-        generate_page(page, generated_path)
+      page = site.pages.find{|p| p.relative_source_path.to_s==full_path} || site.layouts.find{|p| p.relative_source_path.to_s==full_path}
+      return if page.nil?
+
+      #puts "regen page #{page.inspect}"
+      #puts "page.dependents #{page.dependencies.dependents.inspect}"
+
+      regen_pages = Set.new
+      regen_pages << page unless ( page.output_path.nil? )
+      regen_pages += page.dependencies.dependents
+
+      #puts regen_pages.collect{|e|e.output_path}.inspect
+      regen_pages.each do |p|
+        unless ( p.output_path.nil? || p.__is_layout )
+          generated_path = File.join( site.config.output_dir, p.output_path )
+          generate_page( p, generated_path )
+        end
       end
     end
 
     ####
     ##