Allow restricting the version to build

Author: tiennou

bin/cm

@@ -13,6 +13,7 @@ version Docurium::Version
 desc 'Generate HTML documentation'
 long_desc 'Generate HTML docs from a Docurium config file'
 command :doc do |c|
+  c.flag :for, :desc => "The version to generate", :multiple => true
   c.action do |global_options,options,args|
     file = args.first
     Docurium::CLI.doc(file, options)

lib/docurium.rb

@@ -119,12 +119,13 @@ def generate_doc_for(version)
     data
   end
 
-  def generate_docs
+  def generate_docs(options)
     output_index = Rugged::Index.new
     write_site(output_index)
     @tf = File.expand_path(File.join(File.dirname(__FILE__), 'docurium', 'layout.mustache'))
     versions = get_versions
     versions << 'HEAD'
+    versions = versions & options[:for] unless options[:for].empty?
     nversions = versions.size
     output = Queue.new
     pipes = {}

lib/docurium/cli.rb

@@ -3,7 +3,7 @@ class CLI
 
     def self.doc(idir, options)
       doc = Docurium.new(idir)
-      doc.generate_docs
+      doc.generate_docs(options)
     end
 
     def self.gen(file)