tweaks to template roots, add testing

lib/foreman/export/base.rb

@@ -4,7 +4,6 @@ require "foreman/utils"
 class Foreman::Export::Base
 
   attr_reader :engine
-  attr_accessor :template
 
   def initialize(engine)
     @engine = engine
@@ -24,11 +23,11 @@ private ######################################################################
     puts "[foreman export] %s" % message
   end
 
-  def export_template(path, file)
-    if template and File.exist?(file_path = File.join(template, file))
+  def export_template(exporter, file, template_root)
+    if template_root && File.exist?(file_path = File.join(template_root, file))
       File.read(file_path)
     else
-      File.read(File.expand_path("../../../../data/export/#{path}/#{file}", __FILE__))
+      File.read(File.expand_path("../../../../data/export/#{exporter}/#{file}", __FILE__))
     end
   end
 

lib/foreman/export/upstart.rb

@@ -11,7 +11,7 @@ class Foreman::Export::Upstart < Foreman::Export::Base
     app = options[:app] || File.basename(engine.directory)
     user = options[:user] || app
     log_root = options[:log] || "/var/log/#{app}"
-    self.template = options[:template]
+    template_root = options[:template]
 
     Dir["#{location}/#{app}*.conf"].each do |file|
       say "cleaning up: #{file}"
@@ -20,14 +20,14 @@ class Foreman::Export::Upstart < Foreman::Export::Base
 
     concurrency = Foreman::Utils.parse_concurrency(options[:concurrency])
 
-    master_template = export_template("upstart", "master.conf.erb")
+    master_template = export_template("upstart", "master.conf.erb", template_root)
     master_config   = ERB.new(master_template).result(binding)
     write_file "#{location}/#{app}.conf", master_config
 
-    process_template = export_template("upstart", "process.conf.erb")
+    process_template = export_template("upstart", "process.conf.erb", template_root)
 
     engine.processes.values.each do |process|
-      process_master_template = export_template("upstart", "process_master.conf.erb")
+      process_master_template = export_template("upstart", "process_master.conf.erb", template_root)
       process_master_config   = ERB.new(process_master_template).result(binding)
       write_file "#{location}/#{app}-#{process.name}.conf", process_master_config
 

spec/foreman/export/upstart_spec.rb

@@ -21,4 +21,19 @@ describe Foreman::Export::Upstart do
     File.read("/tmp/init/app-bravo.conf").should   == example_export_file("upstart/app-bravo.conf")
     File.read("/tmp/init/app-bravo-1.conf").should == example_export_file("upstart/app-bravo-1.conf")
   end
+
+  context "with alternate templates" do
+    let(:template_root) { "/tmp/alternate" }
+
+    before do
+      FileUtils.mkdir_p template_root
+      File.open("#{template_root}/master.conf.erb", "w") { |f| f.puts "alternate_template" }
+    end
+
+    it "can export with alternate template files" do
+      upstart.export("/tmp/init", :template => template_root)
+
+      File.read("/tmp/init/app.conf").should == "alternate_template\n"
+    end
+  end
 end