CarthageのライブラリをアップデートしてPullRequestを作成するFastlaneのlane

update_carthage_libraries.rb

lane :update_carthage_libraries do |options|
  outdateds = ""

  Dir.chdir ".." do
    outdateds += sh("carthage", "outdated")
  end

  current_branch = git_branch
    
  outdateds.each_line do |line|
    if outdated = line.match(/^(.+?) "(.+?)\.(.+?)\.(.+?)" -> "(.+?)\.(.+?)\.(.+?)"/) then

      lib = outdated[1]
      old_major = outdated[2]
      old_minor = outdated[3]
      old_patch = outdated[4]
      new_major = outdated[5]
      new_minor = outdated[6]
      new_patch = outdated[7]

      if old_major != new_major || old_minor != new_minor || old_patch != new_patch then
        BRANCH_NAME = "update-library-#{lib}-" + Time.now.strftime("%Y%m%d%H%M")

        sh("git", "checkout", "-b", BRANCH_NAME)
        carthage(
          command: "update",
          dependencies: [lib],
          platform: "ios"
        )

        git_add(path: ".")
        git_commit(path: ".", message: "Update Library #{lib}.")

        version = line.match(/"(.*?)" -> "(.*?)"/)
        old_version = version[1]
        new_version = version[2]
        diff = sh("git", "diff", "--", "../Cartfile.resolved")
        repo = diff.match(/-github "(.+?)"/)[1]
       
        body = "## #{repo}\n"
        body += "#{old_version} -> [#{new_version}](https://github.com/#{repo}/releases/tag/#{new_version})\n"
        body += "[compare](https://github.com/#{repo}/compare/#{old_version}...#{new_version})\n"
        
        sh("git", "push", "origin", BRANCH_NAME)
        create_pull_request(
          api_token: ENV["GITHUB_API_TOKEN"],
          repo: "YOUR_REPOSITORY_NAME",
          title: "[Auto generated] Update library #{lib}",
          body: body
        )

        sh("git", "checkout", current_branch)
      end
    end
  end
end