1 files changed, 15 insertions, 13 deletions
diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 7d6aca1bc..6132f08a7 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -46,19 +46,6 @@ class VCSDownloadStrategy < AbstractDownloadStrategy
     @clone = HOMEBREW_CACHE.join(cache_filename)
   end
 
-  def extract_ref(specs)
-    key = REF_TYPES.find { |type| specs.key?(type) }
-    return key, specs[key]
-  end
-
-  def cache_filename
-    "#{name}--#{cache_tag}"
-  end
-
-  def cache_tag
-    "__UNKNOWN__"
-  end
-
   def cached_location
     @clone
   end
@@ -70,6 +57,21 @@ class VCSDownloadStrategy < AbstractDownloadStrategy
   def head?
     resource.version.head?
   end
+
+  private
+
+  def cache_tag
+    "__UNKNOWN__"
+  end
+
+  def cache_filename
+    "#{name}--#{cache_tag}"
+  end
+
+  def extract_ref(specs)
+    key = REF_TYPES.find { |type| specs.key?(type) }
+    return key, specs[key]
+  end
 end
 
 class CurlDownloadStrategy < AbstractDownloadStrategy