breaking up distribution tasks; moving version to a template to have a simpler concat function

tasks/build_dist.rb

@@ -1,20 +1,20 @@
 desc "Build core jasmine.js"
-task :build_dist => :lint do
+task :build_dist => [:lint, :write_version_file] do
   puts 'Building Jasmine distribution from source'
 
-  concat_into('lib/jasmine.js') { [core_sources, version_source] }
+  require 'pp'
+  concat_into('lib/jasmine.js') { core_sources + version_source_file }
   concat_into('lib/jasmine-html.js') { html_sources }
 
   FileUtils.cp('src/html/jasmine.css', 'lib/jasmine.css')
 end
 
 def concat_into(output_file, &block)
-  files, extra = yield
+  files = yield
   File.open(output_file, 'w') do |out|
     files.each do |f|
       out << File.read(f)
     end
-    out << extra if extra
   end
 end
 
@@ -25,3 +25,20 @@ task :lint do
 end
 
 task :hint => :lint
+
+task :write_version_file do
+  template = Tilt.new('src/templates/version.erb')
+  scope = OpenStruct.new(:major => version_hash["major"],
+                         :minor => version_hash["minor"],
+                         :build => version_hash["build"],
+                         :revision => Time.now.to_i)
+
+  File.open('src/version.js', 'w+') do |f|
+    f << template.render(scope)
+  end
+
+end
+
+def version_source_file
+  Dir.glob('src/version.js')
+end