add thor commands to release cookbook

Thorfile

@@ -5,3 +5,81 @@ require 'bundler/setup'
 require 'thor/foodcritic'
 require 'thor/scmversion'
 require 'berkshelf/thor'
+require 'chef/cookbook/metadata'
+
+class Default < Thor
+  class_option :verbose, 
+    :type => :boolean, 
+    :aliases => "-v", 
+    :default => false
+
+  method_option :knife_config, 
+    :type => :string, 
+    :aliases => "-c", 
+    :desc => "Path to your knife configuration file", 
+    :default => "~/.chef/knife.rb"
+  desc "release", "Create a tag from the version specific in the metadata.rb and push to the community site"
+  def release
+    unless clean?
+      say "There are files that need to be committed first.", :red
+      exit 1
+    end
+
+    tag_version {
+      publish_cookbook(options)
+    }
+  end
+
+  private
+
+    def clean?
+      sh_with_excode("git diff --exit-code")[1] == 0
+    end
+
+    def current_version
+      metadata = Chef::Cookbook::Metadata.new
+      metadata.from_file(source_root.join("metadata.rb").to_s)
+      metadata.version
+    end
+
+    def publish_cookbook(options)
+      cmd = "knife cookbook site share nexus \"Utilities\" -o #{source_root.join("..")} -c #{options[:knife_config]}"
+      cmd << " -V" if options[:verbose]
+      system cmd
+    end
+
+    def tag_version
+      sh "git tag -a -m \"Version #{current_version}\" #{current_version}"
+      say "Tagged: #{current_version}", :green
+      yield if block_given?
+      sh "git push --tags"
+    rescue => e
+      say "Untagging: #{current_version} due to error", :red
+      sh_with_excode "git tag -d #{current_version}"
+      say e, :red
+      exit 1
+    end
+
+    def source_root
+      Pathname.new File.dirname(File.expand_path(__FILE__))
+    end
+
+    def sh(cmd, dir = source_root, &block)
+      out, code = sh_with_excode(cmd, dir, &block)
+      code == 0 ? out : raise(out.empty? ? "Running `#{cmd}` failed. Run this command directly for more detailed output." : out)
+    end
+
+    def sh_with_excode(cmd, dir = source_root, &block)
+      cmd << " 2>&1"
+      outbuf = ''
+
+      Dir.chdir(dir) {
+        outbuf = `#{cmd}`
+        if $? == 0
+          block.call(outbuf) if block
+        end
+      }
+
+      [ outbuf, $? ]
+    end
+end