erlang install recipe

lib/deprec/recipes/erlang.rb

@@ -0,0 +1,47 @@
+Capistrano::Configuration.instance(:must_exist).load do
+  namespace :deprec do
+    namespace :erlang do
+
+      #you can find md5 sums at: http://www.erlang.org/download/MD5
+      SRC_PACKAGES[:erlang] = {
+        :md5sum => "7979e662d11476b97c462feb7c132fb7  otp_src_R14B03.tar.gz",
+        :url => "http://www.erlang.org/download/otp_src_R14B03.tar.gz"
+      }
+
+      #checking if specific Erlang version is already installed
+      #versin is ok if erl -version returns string which ends with "emulator version 5.8.4"
+      VERSION_CHECK = {
+        :command => "erl -version; true",
+        :should_return => /emulator version 5.8.4/
+      }
+
+      desc "Install Erlang"
+      task :install do
+        if version_ok?
+          logger.debug "Erlang version ok, nothing to do."
+        else
+          install_deps
+          deprec2.download_src(SRC_PACKAGES[:erlang], src_dir)
+          deprec2.install_from_src(SRC_PACKAGES[:erlang], src_dir)
+        end
+      end
+
+      desc "Prints currently installed Erlang version"
+      task :version do
+        ok = version_ok?
+        logger.debug "Erlang version '#{@version}' #{ok ? "Ok" : "NOT ok"}."
+      end
+
+      desc "Install Erlang dependencies"
+      task :install_deps do
+        apt.install( {:base => %w(build-essential m4 libncurses5-dev libssh-dev unixodbc-dev libgmp3-dev libwxgtk2.8-dev libglu1-mesa-dev fop xsltproc default-jdk)}, :stable )
+      end
+
+      def version_ok?
+        @version =  capture(VERSION_CHECK[:command]).gsub(/[\r\n]/,'')
+        (@version =~ VERSION_CHECK[:should_return])
+      end
+
+    end
+  end
+end

lib/deprec/recipes_minus_rails.rb

@@ -53,6 +53,9 @@
 require "#{File.dirname(__FILE__)}/recipes/vnstat"
 require "#{File.dirname(__FILE__)}/recipes/utils"
 
+
+require "#{File.dirname(__FILE__)}/recipes/erlang"
+
 # Retired recipes
 #
 # require "#{File.dirname(__FILE__)}/recipes/integrity"