From a6509d31126d3533689480a5290f518671d5d8c9 Mon Sep 17 00:00:00 2001
From: Kasper Timm Hansen <kaspth@gmail.com>
Date: Wed, 15 Jul 2015 23:32:45 +0200
Subject: Add wildcard template dependencies.

---
 actionview/lib/action_view/dependency_tracker.rb | 38 ++++++++++++++++++------
 1 file changed, 29 insertions(+), 9 deletions(-)

(limited to 'actionview/lib/action_view/dependency_tracker.rb')

diff --git a/actionview/lib/action_view/dependency_tracker.rb b/actionview/lib/action_view/dependency_tracker.rb
index 7a7e116dbb..6e8c7f8203 100644
--- a/actionview/lib/action_view/dependency_tracker.rb
+++ b/actionview/lib/action_view/dependency_tracker.rb
@@ -1,16 +1,18 @@
 require 'thread_safe'
+require 'action_view/path_set'
 
 module ActionView
   class DependencyTracker # :nodoc:
     @trackers = ThreadSafe::Cache.new
 
-    def self.find_dependencies(name, template)
+    def self.find_dependencies(name, template, view_paths = nil)
       tracker = @trackers[template.handler]
+      return [] unless tracker.present?
 
-      if tracker.present?
-        tracker.call(name, template)
+      if tracker.respond_to?(:supports_view_paths?) && tracker.supports_view_paths?
+        tracker.call(name, template, view_paths)
       else
-        []
+        tracker.call(name, template)
       end
     end
 
@@ -82,12 +84,16 @@ module ActionView
         (?:#{STRING}|#{VARIABLE_OR_METHOD_CHAIN})      # finally, the dependency name of interest
       /xm
 
-      def self.call(name, template)
-        new(name, template).dependencies
+      def self.supports_view_paths? # :nodoc:
+        true
+      end
+
+      def self.call(name, template, view_paths = nil)
+        new(name, template, view_paths).dependencies
       end
 
-      def initialize(name, template)
-        @name, @template = name, template
+      def initialize(name, template, view_paths = nil)
+        @name, @template, @view_paths = name, template, view_paths
       end
 
       def dependencies
@@ -142,8 +148,22 @@ module ActionView
           end
         end
 
+        def resolve_directories(wildcard_dependencies)
+          return [] unless @view_paths
+
+          wildcard_dependencies.each_with_object([]) do |query, templates|
+            @view_paths.find_all_with_query(query).each do |template|
+              templates << "#{File.dirname(query)}/#{File.basename(template).split('.').first}"
+            end
+          end
+        end
+
         def explicit_dependencies
-          source.scan(EXPLICIT_DEPENDENCY).flatten.uniq
+          dependencies = source.scan(EXPLICIT_DEPENDENCY).flatten.uniq
+
+          wildcards, explicits = dependencies.partition { |dependency| dependency[-1] == '*' }
+
+          (explicits + resolve_directories(wildcards)).uniq
         end
     end
 
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