Add SCM specific capabilities to get release log

lib/capistrano/send.rb

@@ -1,3 +1 @@
-require 'capistrano/send/mail'
-require 'capistrano/send/libnotify'
-require 'capistrano/send/notify-send'
+load File.expand_path('../tasks/send.cap', __FILE__)

lib/capistrano/send/all.rb

@@ -0,0 +1,3 @@
+require 'capistrano/send/mail'
+require 'capistrano/send/libnotify'
+require 'capistrano/send/notify-send'

lib/capistrano/send/git.rb

@@ -0,0 +1,13 @@
+load File.expand_path('../../tasks/git.cap', __FILE__)
+
+module Capistrano
+  module Send
+    module Git
+      def log
+        context.capture(:git, "--no-pager log --pretty=format:'* %s (%cn)' #{fetch(:previous_revision)}..#{fetch(:current_revision)}")
+      end
+    end
+  end
+end
+
+Capistrano::Git.include Capistrano::Send::Git

lib/capistrano/send/hg.rb

@@ -0,0 +1,13 @@
+load File.expand_path('../../tasks/hg.cap', __FILE__)
+
+module Capistrano
+  module Send
+    module Hg
+      def log
+        context.capture(:hg, "log --template '{desc} ({author})\n' --rev #{fetch(:previous_revision)}..#{fetch(:current_revision)}")
+      end
+    end
+  end
+end
+
+Capistrano::Hg.include Capistrano::Send::Hg

lib/capistrano/tasks/git.cap

@@ -0,0 +1,13 @@
+namespace :send do
+  namespace :git do
+    task :set_release_log do
+      on release_roles :all do
+        within repo_path do
+          with fetch(:git_environmental_variables) do
+            set :release_log, strategy.log
+          end
+        end
+      end
+    end
+  end
+end

lib/capistrano/tasks/hg.cap

@@ -0,0 +1,11 @@
+namespace :send do
+  namespace :hg do
+    task :set_release_log do
+      on release_roles :all do
+        within repo_path do
+          set :release_log, strategy.log
+        end
+      end
+    end
+  end
+end

lib/capistrano/tasks/send.cap

@@ -0,0 +1,13 @@
+namespace :send do
+  task :set_release_log do
+    invoke "send:#{scm}:set_release_log"
+  end
+
+  task :load_scm do
+    load "capistrano/send/#{fetch(:scm)}.rb"
+  end
+end
+
+Capistrano::DSL.stages.each do |stage|
+  after stage, 'send:load_scm'
+end