Add app revision and link to the footer

.version

@@ -1 +1 @@
-1.0.1
+1.0.2

app/views/layouts/application.html.haml

@@ -48,12 +48,11 @@
             Crafted with ♡ in San Francisco — © CFAEA 2010-#{Date.current.strftime('%Y')}
             All rights reserved.
             %br
-            App Version #{TicketBooth::Application::VERSION},
-            Rails
-            = Rails.version
-            , Ruby
-            = RUBY_VERSION
-            , In
-            = Rails.env
-            mode
+            App Version #{TicketBooth::Application::VERSION}
+            | Revision
+            %a{href: "https://github.com/fnf-org/TicketBooth/commit/#{TicketBooth::Application::REVISION}", target: "_blank" }
+              = TicketBooth::Application::REVISION
+            | Rails #{Rails.version}
+            | Ruby #{RUBY_VERSION}
+            | #{Rails.env.to_s.capitalize} Env
 

config/application.rb

@@ -35,7 +35,16 @@ def xmlschema; end
 module TicketBooth
   class Application < Rails::Application
     # Application Version
-    VERSION = File.read('.version').freeze
+    VERSION  = File.read('.version').freeze
+
+    # Read the latest revision
+    REVISION = if File.exist?('REVISION')
+                 File.read('REVISION').strip
+               elsif Dir.exist?('.git')
+                 `git rev-parse --short HEAD`.strip
+               else
+                 VERSION
+               end
 
     # Initialize configuration defaults for originally generated Rails version.
     config.load_defaults 7.1
@@ -76,6 +85,6 @@ class Application < Rails::Application
     config.active_job.queue_adapter = ActiveJob::QueueAdapters::AsyncAdapter.new \
       min_threads: 1,
       max_threads: 3,
-      idletime: 30.seconds
+      idletime:    30.seconds
   end
 end