Fastlane lanes to update project version number

UpdateProjectVersion.rb

desc "Increment Patch version"
lane :patch do 
  version_number = update_version_number_and_commit(bump_type:"patch")
  version_number
end

desc "Increment minor version"
lane :minor do 
  version_number = update_version_number_and_commit(bump_type:"minor")
  version_number
end  

desc "Increment major version"
lane :major do 
  version_number = update_version_number_and_commit(bump_type:"major")
  version_number
end

private_lane :update_version_number_and_commit do |options|
  ensure_git_status_clean
  new_version_number = options[:number]
  bump_type = options[:bump_type]
  if (proj[:xcodeproj] == nil)
    raise "Your fastlane File is missing a xcodeproj variable: proj[:xcodeproj] = './PATH_TO_PROJECT.xcodeproj/' ".red
  end
  if proj[:xcodeproj]
    if new_version_number
      increment_version_number(version_number: new_version_number,
        xcodeproj: proj[:xcodeproj])
    elsif bump_type
      increment_version_number(bump_type: bump_type,xcodeproj: proj[:xcodeproj])
    else
      increment_version_number(xcodeproj: proj[:xcodeproj])
    end
    version_number = get_version_short_string
    sh "git commit -am \"Change version number: #{version_number} \" "
    version_number
  end
end