added support for changing host name on up for Debian, Ubuntu and RedHat

lib/vagrant/action/builtin.rb

@@ -21,6 +21,7 @@ module Vagrant
         use VM::NFS
         use VM::ClearSharedFolders
         use VM::ShareFolders
+        use VM::HostName
         use VM::Network
         use VM::Boot
       end)

lib/vagrant/action/vm.rb

@@ -15,6 +15,7 @@ module Vagrant
       autoload :Export,              'vagrant/action/vm/export'
       autoload :ForwardPorts,        'vagrant/action/vm/forward_ports'
       autoload :Halt,                'vagrant/action/vm/halt'
+      autoload :HostName,            'vagrant/action/vm/host_name'
       autoload :Import,              'vagrant/action/vm/import'
       autoload :MatchMACAddress,     'vagrant/action/vm/match_mac_address'
       autoload :Network,             'vagrant/action/vm/network'

lib/vagrant/action/vm/host_name.rb

@@ -0,0 +1,21 @@
+module Vagrant
+  class Action
+    module VM
+      class HostName
+        def initialize(app, env, options=nil)
+          @app = app
+          env.merge!(options || {})
+        end
+
+        def call(env)
+          @app.call(env)
+          host_name = env["config"].vm.host_name
+          if !host_name.nil?
+            env.ui.info I18n.t("vagrant.actions.vm.host_name.setting")
+            env["vm"].system.change_host_name(host_name)
+          end
+        end
+      end
+    end
+  end
+end

lib/vagrant/config/vm.rb

@@ -14,6 +14,7 @@ module Vagrant
       attr_accessor :box_ovf
       attr_accessor :base_mac
       attr_accessor :boot_mode
+      attr_accessor :host_name
       attr_reader :forwarded_ports
       attr_reader :shared_folders
       attr_reader :network_options

lib/vagrant/systems/base.rb

@@ -78,6 +78,11 @@ module Vagrant
       #
       # @param [Hash] net_options The options for the network.
       def enable_host_only_network(net_options); end
+
+      def change_host_name(name)
+        raise BaseError, :_key => :unsupported_host_name
+      end
+
     end
   end
 end

lib/vagrant/systems/debian.rb

@@ -21,6 +21,15 @@ module Vagrant
           ssh.exec!("sudo /sbin/ifup eth#{net_options[:adapter]}")
         end
       end
+
+      def change_host_name(name)
+        vm.ssh.execute do |ssh|
+          host_name_already_set = ssh.test?("sudo hostname | grep '#{name}'")
+          ssh.exec!("sudo sed -i 's/.*$/#{name}/' /etc/hostname") unless host_name_already_set
+          ssh.exec!("sudo service hostname start") unless host_name_already_set
+        end
+      end
+
     end
   end
 end

lib/vagrant/systems/redhat.rb

@@ -23,6 +23,15 @@ module Vagrant
           ssh.exec!("sudo /sbin/ifup eth#{net_options[:adapter]}")
         end
       end
+
+      def change_host_name(name)
+        vm.ssh.execute do |ssh|
+          host_name_already_set = ssh.test?("sudo hostname | grep '#{name}'")
+          ssh.exec!("sudo sed -i 's/\\(HOSTNAME=\\).*/\\1#{name}/' /etc/sysconfig/network") unless host_name_already_set
+          ssh.exec!("sudo hostname #{name}") unless host_name_already_set
+        end
+      end
+
     end
   end
 end

templates/locales/en.yml

@@ -320,6 +320,8 @@ en:
             Skipping port forwarding '%{name}'.
         halt:
           force: Forcing shutdown of VM...
+        host_name:
+          setting: "Setting host name..."
         import:
           importing: Importing base box '%{name}'...
           failure: |-
@@ -499,7 +501,8 @@ en:
           Most of the time this is simply due to the fact that no one has contributed
           back the SSH commands necessary to set this up. Please report a bug and this
           will be fixed for your distro.
-
+        unsupported_host_name: |-
+          Setting host name is currently only supported on Debian, Ubuntu and RedHat
       linux:
         attempting_halt: "Attempting graceful shutdown of linux..."
         mount_fail: "Failed to mount shared folders. `vboxsf` was not available."