git merge master into all local branches

merge_master.rb

#!/usr/bin/env ruby

BRANCHES = []
`git branch`.each_line do |line|
  branch = line.gsub(/[^\w]/, '')
  if line[0]==42
    STARTED_ON_BRANCH = branch
  end
  BRANCHES << branch
end

def backtick(command)
  puts "\n--- $ #{command} ".ljust(80,'-')
  puts `#{command}`
end

def confirm(prompt)
  print "\n***** #{prompt} ? [Y/n] "
  gets.strip.downcase != 'n'
end

backtick "git checkout master"
backtick "git pull"

BRANCHES.each do |branch|
  unless branch=='master'
    backtick "git checkout #{branch}"
    if confirm "merge master into #{branch}"
      backtick "git merge master"
      if confirm "push #{branch} to origin"
        backtick "git push"
      end
    end
  end
end

backtick "git checkout #{STARTED_ON_BRANCH}"
puts "all done!\n\n"