Starting work on CFEngine, installs on Debian

lib/vagrant/errors.rb

@@ -135,6 +135,14 @@ module Vagrant
       error_key(:failed, "vagrant.actions.box.verify")
     end
 
+    class CFEngineInstallFailed < VagrantError
+      error_key(:cfengine_install_failed)
+    end
+
+    class CFEngineNotInstalled < VagrantError
+      error_key(:cfengine_not_installed)
+    end
+
     class CLIInvalidUsage < VagrantError
       error_key(:cli_invalid_usage)
     end

plugins/provisioners/cfengine/cap/debian/cfengine_install.rb

@@ -0,0 +1,19 @@
+module VagrantPlugins
+  module CFEngine
+    module Cap
+      module Debian
+        module CFEngineInstall
+          def self.cfengine_install(machine, config)
+            machine.communicate.tap do |comm|
+              comm.sudo("mkdir -p #{File.dirname(config.deb_repo_file)} && /bin/echo #{config.deb_repo_line} > #{config.deb_repo_file}")
+              comm.sudo("GPGFILE=`tempfile`; wget -O $GPGFILE #{config.repo_gpg_key_url} && apt-key add $GPGFILE; rm -f $GPGFILE")
+
+              comm.sudo("apt-get update")
+              comm.sudo("apt-get install -y cfengine-community")
+            end
+          end
+        end
+      end
+    end
+  end
+end

plugins/provisioners/cfengine/cap/linux/cfengine_installed.rb

@@ -0,0 +1,14 @@
+module VagrantPlugins
+  module CFEngine
+    module Cap
+      module Linux
+        module CFEngineInstalled
+          def self.cfengine_installed(machine)
+            machine.communicate.test(
+              "test -d /var/cfengine && test -x /var/cfengine/bin/cf-agent", sudo: true)
+          end
+        end
+      end
+    end
+  end
+end

plugins/provisioners/cfengine/config.rb

@@ -0,0 +1,36 @@
+require "vagrant"
+
+module VagrantPlugins
+  module CFEngine
+    class Config < Vagrant.plugin("2", :config)
+      attr_accessor :install
+      attr_accessor :deb_repo_file
+      attr_accessor :deb_repo_line
+      attr_accessor :repo_gpg_key_url
+
+      def initialize
+        @deb_repo_file = UNSET_VALUE
+        @deb_repo_line = UNSET_VALUE
+        @install = UNSET_VALUE
+        @repo_gpg_key_url = UNSET_VALUE
+      end
+
+      def finalize!
+        if @deb_repo_file == UNSET_VALUE
+          @deb_repo_file = "/etc/apt/sources.list.d/cfengine-community.list"
+        end
+
+        if @deb_repo_line == UNSET_VALUE
+          @deb_repo_line = "deb http://cfengine.com/pub/apt $(lsb_release -cs) main"
+        end
+
+        @install = true if @install == UNSET_VALUE
+        @install = @install.to_sym if @install.respond_to?(:to_sym)
+
+        if @repo_gpg_key_url == UNSET_VALUE
+          @repo_gpg_key_url = "http://cfengine.com/pub/gpg.key"
+        end
+      end
+    end
+  end
+end

plugins/provisioners/cfengine/plugin.rb

@@ -0,0 +1,32 @@
+require "vagrant"
+
+module VagrantPlugins
+  module CFEngine
+    class Plugin < Vagrant.plugin("2")
+      name "CFEngine Provisioner"
+      description <<-DESC
+      Provisions machines with CFEngine.
+      DESC
+
+      config(:cfengine, :provisioner) do
+        require_relative "config"
+        Config
+      end
+
+      guest_capability("debian", "cfengine_install") do
+        require_relative "cap/debian/cfengine_install"
+        Cap::Debian::CFEngineInstall
+      end
+
+      guest_capability("linux", "cfengine_installed") do
+        require_relative "cap/linux/cfengine_installed"
+        Cap::Linux::CFEngineInstalled
+      end
+
+      provisioner(:cfengine) do
+        require_relative "provisioner"
+        Provisioner
+      end
+    end
+  end
+end

plugins/provisioners/cfengine/provisioner.rb

@@ -0,0 +1,35 @@
+require "vagrant"
+
+module VagrantPlugins
+  module CFEngine
+    class Provisioner < Vagrant.plugin("2", :provisioner)
+      def provision
+        handle_cfengine_installation
+      end
+
+      protected
+
+      # This handles verifying the CFEngine installation, installing it
+      # if it was requested, and so on. This method will raise exceptions
+      # if things are wrong.
+      def handle_cfengine_installation
+        if !@machine.guest.capability?(:cfengine_installed)
+          @machine.ui.warn(I18n.t("vagrant.cfengine_cant_detect"))
+          return
+        end
+
+        installed = @machine.guest.capability(:cfengine_installed)
+        if !installed || @config.install == :force
+          raise Vagrant::Errors::CFEngineNotInstalled if !@config.install
+
+          @machine.ui.info(I18n.t("vagrant.cfengine_installing"))
+          @machine.guest.capability(:cfengine_install, @config)
+
+          if !@machine.guest.capability(:cfengine_installed)
+            raise Vagrant::Errors::CFEngineInstallFailed
+          end
+        end
+      end
+    end
+  end
+end

templates/locales/en.yml

@@ -1,5 +1,12 @@
 en:
   vagrant:
+    cfengine_cant_detect: |-
+      Vagrant doesn't support detecting whether CFEngine is installed
+      for the guest OS running in the machine. Vagrant will assume it is
+      installed and attempt to continue.
+    cfengine_installing: |-
+      Installing CFEngine onto machine...
+
     general:
       batch_unexpected_error: |-
         An unexpected error ocurred when executing the action on the
@@ -99,6 +106,16 @@ en:
         The box '%{name}' is still stored on disk in the Vagrant 1.0.x
         format. This box must be upgraded in order to work properly with
         this version of Vagrant.
+      cfengine_install_failed: |-
+        After installing CFEngine, Vagrant still can't detect a proper
+        CFEngine installation. Please verify that CFEngine was properly
+        installed, as the installation may have failed.
+      cfengine_not_installed: |-
+        CFEngine appears to not be installed on the guest machine. Vagrant
+        can attempt to install CFEngine for you if you set the "install"
+        setting to "true", but this setting was not set. Please install
+        CFEngine on the guest machine or enable the "install" setting for
+        Vagrant to attempt to install it for you.
       cli_invalid_options: |-
         An invalid option was specified. The help for this command
         is available below.