git-shelve-and-goto

   1 #!/usr/bin/env ruby
   2
   3 #this will shelve your current changes to a new branch
   4 require 'optparse'
   5
   6 class ShelveAndGoto
   7   attr_accessor :options
   8   attr_accessor :destination_branch
   9
  10   def initialize
  11     options = {}
  12     branch = OptionParser.new do |opts|
  13               opts.on("-v", "--[no-]verbose", "Verbose output (echo individual git commands)") do |v|
  14                 options[:verbose] = v
  15               end
  16     end.parse!
  17     self.options = {:verbose => false}.merge options
  18     self.destination_branch = branch.join('-')
  19   end
  20
  21   def run
  22     git("git add .") &&
  23     git("git ci -a -m 'SHELVE SHELVE SHELVE'") &&
  24     if branch_exists?(destination_branch)
  25       git("git checkout #{destination_branch}")
  26     else
  27       git("git checkout HEAD^")
  28       git("git checkout -b #{destination_branch}")
  29     end
  30   end
  31
  32
  33   private
  34   def current_branch
  35     output = get('git branch')
  36     output.match(/^\* (.+)$/)[1]
  37   end
  38
  39   def branch_exists?(branch)
  40     output = get('git branch')
  41     !output.match("^(\\*| ) #{branch}$").nil?
  42   end
  43
  44   def git(cmd)
  45     puts cmd if options[:verbose]
  46     system cmd
  47   end
  48
  49   def get(cmd)
  50     puts cmd if options[:verbose]
  51     `#{cmd}`
  52   end
  53 end
  54
  55 ShelveAndGoto.new.run