donloads: show the installer/package release date

app/models/download.rb

@@ -2,11 +2,12 @@
 # t.string :filename
 # t.string :platform
 # t.references :version
+# t.timestamp :release_date
 # t.timestamps
 class Download < ActiveRecord::Base
   belongs_to :version
 
   def self.latest_for(platform)
-    includes(:version).where('platform=?', platform).order('versions.vorder DESC').order('downloads.filename DESC').first
+    includes(:version).where('platform=?', platform).order('versions.vorder DESC').order('downloads.release_date DESC').first
   end
 end

app/views/downloads/downloading.html.haml

@@ -11,7 +11,7 @@
   %div.callout.downloading
     %h3 Your download is starting...
 
-    %p=raw "You are downloading version <strong>#{@download.version.name}</strong> of Git for the <strong>#{@platform.capitalize}</strong> platform. This is the most recent <a href='#{@project_url}'>maintained build</a> for this platform. It was released <strong>#{time_ago_in_words @download.version.committed} ago</strong>, on #{@download.version.committed.strftime("%Y-%m-%d")}."
+    %p=raw "You are downloading version <strong>#{@download.version.name}</strong> of Git for the <strong>#{@platform.capitalize}</strong> platform. This is the most recent <a href='#{@project_url}'>maintained build</a> for this platform. It was released <strong>#{time_ago_in_words @download.release_date} ago</strong>, on #{@download.release_date.strftime("%Y-%m-%d")}."
 
     %p=raw "<strong>If your download hasn't started, <a href=\"#{@download.url}\">click here to download manually</a>.</strong>"
 

db/migrate/20120925124736_add_release_date_to_downloads.rb

@@ -0,0 +1,17 @@
+class AddReleaseDateToDownloads < ActiveRecord::Migration
+  def change
+    add_column :downloads, :release_date, :timestamp
+
+    Download.all.each do |d|
+      time = d.version.committed # best guess
+
+      if d.platform == 'windows' # for Windows, take it from the filename
+        d.filename =~ /Git-(.*?)-(.*?)(\d{4})(\d{2})(\d{2})\.exe/
+        time = Time.utc($3, $4, $5)
+      end
+
+      d.release_date = time
+      d.save
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120423150252) do
+ActiveRecord::Schema.define(:version => 20120925124736) do
 
   create_table "books", :force => true do |t|
     t.string   "code"
@@ -64,6 +64,7 @@
     t.integer  "version_id"
     t.datetime "created_at", :null => false
     t.datetime "updated_at", :null => false
+    t.datetime "release_date"
   end
 
   create_table "related_items", :force => true do |t|

lib/tasks/downloads.rake

@@ -5,7 +5,7 @@ task :downloads => :environment do
   # find latest windows version
   win_downloads = Octokit.downloads("msysgit/git")
   win_downloads.each do |down|
-    if m = /^Git-(.*?)-(.*).exe/.match(down.name)
+    if m = /^Git-(.*?)-(.*?)(\d{4})(\d{2})(\d{2})\.exe/.match(down.name)
       version = m[1]
       puts version = version
       puts url = down.html_url
@@ -14,6 +14,7 @@ task :downloads => :environment do
         d = v.downloads.where(:url => url).first_or_create
         d.filename = down.name
         d.platform = 'windows'
+        d.release_date = Time.utc(m[3], m[4], m[5])
         d.save
       end
     end
@@ -31,6 +32,7 @@ task :downloads => :environment do
         d = v.downloads.where(:url => url).first_or_create
         d.filename = down.name
         d.platform = 'mac'
+        d.release_date = down.created_at
         d.save
       end
     end