Script for creating a matching topic branch in each of repos in the current directory

create_branch.rb

#!/usr/bin/env ruby

# create_branch.rb

base_branch="development"

ARGV.each do|a|
  puts "Argument: #{a}"
end

# Script requires at least 1 argument
if ARGV.length < 1
  puts "Usage: create_branch.sh new-branch-name [base-branch]"
  puts "If not provided, 'base-branch' is assumed to be '#{base_branch}'."
  exit 1
end

# 1st argument: new-branch-name
new_branch_name = ARGV[0]

# 2nd argument: base-branch (optional)
if ARGV.length == 2
  base_branch = ARGV[1]
end

def branch_exists(branch_name)
  puts "Checking whether #{branch_name} exists in local repo"
  success = system("git rev-parse --verify #{branch_name} > /dev/null")
  puts "Branch exists" if success
  return success
end

root_dir = File.dirname(__FILE__)
Dir.foreach(root_dir) do |item|
  next if item == '.' or item == '..' or item == '_old' or File.file?(item)
  # do work on real items
  puts item
  Dir.chdir(root_dir + '/' + item)

  `git checkout master`
  `git pull`
  `git checkout #{base_branch} || git checkout -t origin/#{base_branch}`
  `git pull`

  if !branch_exists(new_branch_name)
    # Only create if branch doesn't already exist
    `git checkout -b #{new_branch_name}`
  end

  Dir.chdir("..") # pop
end