batch delete remote branches

delete_remotes

#!/usr/bin/env ruby

abort 'please specify the remote to delete branches from' if ARGV.empty?
remote = ARGV.shift

puts "gathering list of branches for remote '#{remote}'"
branches = `git branch -r | grep #{remote}`.lines
branches.map! { |s| s.strip! }
branches.reject! { |b| b =~ /.*\/master/ }
branches.join("\n")
puts branches

printf '> proceed? '
ans = gets.chomp!
exit unless ans.upcase! == 'Y'

puts "ok, deleting #{branches.length} branches.."
branches.each do |b|
  branch = b.gsub(/#{remote}\//, '')
  cmd = "git push #{remote} :#{branch}"
  puts cmd
  system cmd
end

puts 'done.'