(PE-14271) Extract installer configuration methods

...from the existing code to generate answers and expand it to
generalize the installer settings and configuration file.  Passes
existing specs.  Will be further specialized to handle legacy/meep
cases.

lib/beaker-pe/install/pe_utils.rb

@@ -106,7 +106,7 @@ def installer_cmd(host, opts)
             host.install_from_file("puppet-enterprise-#{version}-#{host['platform']}.swix")
           else
             pe_debug = host[:pe_debug] || opts[:pe_debug]  ? ' -D' : ''
-            "cd #{host['working_dir']}/#{host['dist']} && ./#{host['pe_installer']}#{pe_debug} -a #{host['working_dir']}/answers"
+            "cd #{host['working_dir']}/#{host['dist']} && ./#{host['pe_installer']}#{pe_debug} #{host['pe_installer_conf_setting']}"
           end
         end
 
@@ -433,8 +433,8 @@ def do_install hosts, opts = {}
                 acceptable_codes = host['platform'] =~ /osx/ ? [1] : [0, 1]
                 setup_defaults_and_config_helper_on(host, master, acceptable_codes)
               else
-                answers = BeakerAnswers::Answers.create(opts[:pe_ver] || host['pe_ver'], hosts, opts)
-                create_remote_file host, "#{host['working_dir']}/answers", answers.answer_string(host)
+                prepare_host_installer_options(host)
+                generate_installer_conf_file_for(host, hosts, opts)
                 on host, installer_cmd(host, opts)
                 configure_type_defaults_on(host)
               end
@@ -497,6 +497,44 @@ def do_install hosts, opts = {}
           end
         end
 
+        # Set installer options on the passed *host* according to current
+        # version and external INSTALLER_TYPE setting.
+        #
+        # Sets:
+        #   * 'pe_installer_conf_file'
+        #   * 'pe_installer_conf_setting'
+        #   * 'pe_installer_type'
+        #
+        # @param [Beaker::Host] host The host object to configure
+        # @return [Beaker::Host] The same host object passed in
+        def prepare_host_installer_options(host)
+          conf_file = "#{host['working_dir']}/answers"
+          host['pe_installer_conf_file'] = conf_file
+          host['pe_installer_conf_setting'] = "-a #{conf_file}"
+          host['pe_installer_type'] = 'legacy'
+          host
+        end
+
+        # Generates a Beaker Answers object for the passed *host* and creates
+        # the answer or pe.conf configuration file on the *host* needed for
+        # installation.
+        #
+        # Expects the host['pe_installer_conf_file'] to have been set, which is
+        # where the configuration will be written to, and expects
+        # host['pe_installer_type'] to have been set to either 'legacy' or
+        # 'meep'.
+        #
+        # @param [Beaker::Host] host The host to create a configuration file on
+        # @param [Array<Beaker::Host]> hosts All of the hosts to be configured
+        # @param [Hash] opts The Beaker options hash
+        # @return [BeakerAnswers::Answers] the generated answers object
+        def generate_installer_conf_file_for(host, hosts, opts)
+           answers = BeakerAnswers::Answers.create(opts[:pe_ver] || host['pe_ver'], hosts, opts)
+           configuration = answers.answer_string(host)
+           create_remote_file(host, host['pe_installer_conf_file'], configuration)
+           answers
+        end
+
         # Builds the agent_only and not_agent_only arrays needed for installation.
         #
         # @param [Array<Host>]          hosts hosts to split up into the arrays

spec/beaker-pe/install/pe_utils_spec.rb

@@ -50,7 +50,7 @@ def logger
                                                 :working_dir => '/tmp' } ) }
   let(:unixhost)      { make_host( 'unixhost', { :platform => 'linux',
                                                  :pe_ver => '3.0',
-                                                :type => 'pe',
+                                                 :type => 'pe',
                                                  :working_dir => '/tmp',
                                                  :dist => 'puppet-enterprise-3.1.0-rc0-230-g36c9e5c-debian-7-i386' } ) }
   let(:eoshost)       { make_host( 'eoshost', { :platform => 'eos',
@@ -192,6 +192,7 @@ def logger
     it 'generates a unix PE install command for a unix host' do
       the_host = unixhost.dup
       the_host['pe_installer'] = 'puppet-enterprise-installer'
+      the_host['pe_installer_conf_setting'] = '-a /tmp/answers'
       expect( subject.installer_cmd( the_host, {} ) ).to be === "cd /tmp/puppet-enterprise-3.1.0-rc0-230-g36c9e5c-debian-7-i386 && ./puppet-enterprise-installer -a /tmp/answers"
     end
 
@@ -229,6 +230,7 @@ def logger
     it 'generates a unix PE install command in verbose for a unix host when pe_debug is enabled' do
       the_host = unixhost.dup
       the_host['pe_installer'] = 'puppet-enterprise-installer'
+      the_host['pe_installer_conf_setting'] = '-a /tmp/answers'
       the_host[:pe_debug] = true
       expect( subject.installer_cmd( the_host, {} ) ).to be === "cd /tmp/puppet-enterprise-3.1.0-rc0-230-g36c9e5c-debian-7-i386 && ./puppet-enterprise-installer -D -a /tmp/answers"
     end