From 27159dff0fd0d3f8a6faececc35fffe55a5f3032 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Sun, 22 May 2011 15:10:53 -0500
Subject: Add debug_asset support

---
 .../lib/action_view/helpers/sprockets_helper.rb    | 62 ++++++++++++++++------
 1 file changed, 47 insertions(+), 15 deletions(-)

(limited to 'actionpack/lib/action_view')

diff --git a/actionpack/lib/action_view/helpers/sprockets_helper.rb b/actionpack/lib/action_view/helpers/sprockets_helper.rb
index ab98da9624..e5d780225b 100644
--- a/actionpack/lib/action_view/helpers/sprockets_helper.rb
+++ b/actionpack/lib/action_view/helpers/sprockets_helper.rb
@@ -4,28 +4,53 @@ require 'action_view/helpers/asset_paths'
 module ActionView
   module Helpers
     module SprocketsHelper
-      def asset_path(source, default_ext = nil)
-        sprockets_asset_paths.compute_public_path(source, 'assets', default_ext, true)
+      def debug_assets?
+        params[:debug_assets] == '1' ||
+          params[:debug_assets] == 'true'
+      end
+
+      def asset_path(source, default_ext = nil, body = false)
+        source = source.logical_path if source.respond_to?(:logical_path)
+        path = sprockets_asset_paths.compute_public_path(source, 'assets', default_ext, true)
+        body ? "#{path}?body=1" : path
       end
 
       def sprockets_javascript_include_tag(source, options = {})
-        options = {
-          'type' => "text/javascript",
-          'src'  => asset_path(source, 'js')
-        }.merge(options.stringify_keys)
+        debug = options.key?(:debug) ? options.delete(:debug) : debug_assets?
+        body  = options.key?(:body)  ? options.delete(:body)  : false
 
-        content_tag 'script', "", options
+        if debug && asset = sprockets_asset_paths.asset_for(source, 'js')
+          asset.to_a.map { |dep|
+            sprockets_javascript_include_tag(dep, :debug => false, :body => true)
+          }.join("\n").html_safe
+        else
+          options = {
+            'type' => "text/javascript",
+            'src'  => asset_path(source, 'js', body)
+          }.merge(options.stringify_keys)
+
+          content_tag 'script', "", options
+        end
       end
 
       def sprockets_stylesheet_link_tag(source, options = {})
-        options = {
-          'rel'   => "stylesheet",
-          'type'  => "text/css",
-          'media' => "screen",
-          'href'  => asset_path(source, 'css')
-        }.merge(options.stringify_keys)
+        debug = options.key?(:debug) ? options.delete(:debug) : debug_assets?
+        body  = options.key?(:body)  ? options.delete(:body)  : false
 
-        tag 'link', options
+        if debug && asset = sprockets_asset_paths.asset_for(source, 'css')
+          asset.to_a.map { |dep|
+            sprockets_stylesheet_link_tag(dep, :debug => false, :body => true)
+          }.join("\n").html_safe
+        else
+          options = {
+            'rel'   => "stylesheet",
+            'type'  => "text/css",
+            'media' => "screen",
+            'href'  => asset_path(source, 'css', body)
+          }.merge(options.stringify_keys)
+
+          tag 'link', options
+        end
       end
 
       private
@@ -39,6 +64,13 @@ module ActionView
       end
 
       class AssetPaths < ActionView::Helpers::AssetPaths #:nodoc:
+        def asset_for(source, ext)
+          source = source.to_s
+          return nil if is_uri?(source)
+          source = rewrite_extension(source, nil, ext)
+          assets[source]
+        end
+
         def rewrite_asset_path(source, dir)
           if source[0] == ?/
             source
@@ -66,4 +98,4 @@ module ActionView
       end
     end
   end
-end
\ No newline at end of file
+end
-- 
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