Add custom bottle URL support.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Library/Homebrew/bottles.rb

@@ -70,6 +70,11 @@ def bottle_regex
   Pathname::BOTTLE_EXTNAME_RX
 end
 
-def bottle_base_url
-  "https://downloads.sf.net/project/machomebrew/Bottles/"
+def bottle_root_url f
+  root_url = f.bottle.root_url
+  root_url ||= 'https://downloads.sf.net/project/machomebrew/Bottles'
+end
+
+def bottle_url f
+  "#{bottle_root_url(f)}/#{bottle_filename(f)}"
 end

Library/Homebrew/formula.rb

@@ -39,7 +39,7 @@ class Formula
     # Ensure the bottle URL is set. If it does not have a checksum,
     # then a bottle is not available for the current platform.
     if @bottle and not (@bottle.checksum.nil? or @bottle.checksum.empty?)
-      @bottle.url ||= bottle_base_url + bottle_filename(self)
+      @bottle.url ||= bottle_url(self)
       if @bottle.cat_without_underscores
         @bottle.url.gsub!(MacOS.cat.to_s, MacOS.cat_without_underscores.to_s)
       end

Library/Homebrew/formula_support.rb

@@ -79,7 +79,7 @@ end
 
 class Bottle < SoftwareSpec
   attr_writer :url
-  attr_reader :revision
+  attr_reader :revision, :root_url
   # TODO: Can be removed when all bottles migrated to underscored cat symbols.
   attr_reader :cat_without_underscores
 
@@ -113,6 +113,10 @@ class Bottle < SoftwareSpec
     }
   end
 
+  def root_url val=nil
+    val.nil? ? @root_url : @root_url = val
+  end
+
   def revision val=nil
     val.nil? ? @revision : @revision = val
   end