Pointing Mac downloads to Sourceforge instead of Google Code

The downloads for the Mac installers moved to Sourceforge, so I've
updated the downloads.rake and the downloads controller and haml file
to point to the new location. Note that SF doesn't allow deep linking,
so the iframe trick doesn't work here (you'll always need to manually
download it, the browser won't force a download).

Author: ohwhen

app/controllers/downloads_controller.rb

@@ -30,7 +30,7 @@ def download
         @project_url  = "http://msysgit.github.com/"
         @source_url   = "https://github.com/msysgit/git/"
       else
-        @project_url = "http://code.google.com/p/git-osx-installer/"
+        @project_url = "http://sourceforge.net/projects/git-osx-installer/"
         @source_url   = "https://github.com/git/git/"
       end
 

app/views/downloads/installers/index.html.haml

@@ -33,7 +33,7 @@
             %td
               %strong Mac
             %td 
-              =link_to "Stable", "http://code.google.com/p/git-osx-installer/downloads/list?can=3"
+              =link_to "Stable", "http://sourceforge.net/projects/git-osx-installer/files/"
           %tr
             %td 
               %strong Solaris

lib/tasks/downloads.rake

@@ -1,29 +1,38 @@
 require 'octokit'
 require 'feedzirra'
 
-def gcode_downloads(project)
+# [OvD] note that Google uses Atom & Sourceforge uses RSS
+# however this isn't relevant when parsing the feeds for
+# name, version, url & date with Feedzirra
+GOOGLE_CODE_URL = "http://code.google.com/feeds/p/msysgit/downloads/basic"
+SOURCEFORGE_URL = "http://sourceforge.net/api/file/index/project-id/2063428/mtime/desc/limit/20/rss"
+
+def file_downloads(repository)
   downloads = []
-  atom_url = "http://code.google.com/feeds/p/#{project}/downloads/basic"
-  feed = Feedzirra::Feed.fetch_and_parse(atom_url)
+  feed = Feedzirra::Feed.fetch_and_parse(repository)
   feed.entries.each do |entry|
     downloads << [entry.entry_id, entry.published]
   end
   downloads
 end
 
-def file_url(project, filename)
+def googlecode_url(project, filename)
   "https://#{project}.googlecode.com/files/#{filename}"
 end
 
+def sourceforge_url(project, filename)
+  "http://sourceforge.net/projects/#{project}/files/#{filename}/download?use_mirror=autoselect"
+end
+
 # find newest mac and windows binary downloads
 task :downloads => :environment do
   # find latest windows version
   project = "msysgit"
-  win_downloads = gcode_downloads(project)
+  win_downloads = file_downloads(GOOGLE_CODE_URL)
   win_downloads.each do |url, date|
     name = url.split('/').last
     if m = /^Git-(.*?)-(.*?)(\d{4})(\d{2})(\d{2})\.exe/.match(name)
-      url = file_url(project, name)
+      url = googlecode_url(project, name)
       version = m[1]
       puts version = version
       puts name
@@ -43,11 +52,11 @@ task :downloads => :environment do
 
   # find latest mac version
   project = "git-osx-installer"
-  mac_downloads = gcode_downloads(project)
+  mac_downloads = file_downloads(SOURCEFORGE_URL)
   mac_downloads.each do |url, date|
-    name = url.split('/').last
+    name = url.split('/')[-2]
     if m = /git-(.*?)-/.match(name)
-      url = file_url(project, name)
+      url = sourceforge_url(project, name)
       version = m[1]
       puts version = version
       puts name