breakout feature into parts

lib/feature/start.rb

@@ -0,0 +1,23 @@
+require_relative './base'
+
+module Feature
+
+  class Start < Feature::Base
+    def execute
+      error "USAGE: feature start feature_name" unless argv.size == 2
+
+      feature = argv[1]
+      feature_branch = "#{ENV['USER']}-#{current_branch}-#{feature}"
+
+      error "invalid base branch: #{current_branch}" unless standard_branches.include? current_branch
+      error "invalid feature branch: #{featureh}"    if     standard_branches.include? feature
+
+      run_cmd "git pull origin #{current_branch}"
+
+      run_cmd "git checkout -b #{feature_branch}"
+
+      run_cmd "git push origin #{feature_branch}"
+    end
+  end
+
+end