git-make

#!/usr/bin/env ruby

def sh(cmd)
  puts "[sh] #{cmd}"
  raise "git error" unless system(cmd)
end

if ARGV.size < 3 || ARGV[1] != "of"
  puts "Example usage: git make staging of dev feature/foo feature/bar"
else
  dpl = ARGV[0]
  base = ARGV[2]
  rest = ARGV.drop(3)

  print "Warning!! This will delete branch #{dpl} ! (Hit enter to continue or Ctrl-C to cancel)"
  STDIN.gets
  sh "git checkout #{base}"
  sh "git branch -D #{dpl}"
  sh "git checkout -b #{dpl}"
  rest.each {|r| sh "git merge #{r}" }
  sh "git push -f origin #{dpl}"
end

info.md

from http://d.pr/i/7Px4 to http://d.pr/i/5Vl2

Save as git-make, chmod +x, make it available in PATH, then

$ git make staging of dev feature/foo feature/bar