copy_to

# File lib/bundler/source/git/git_proxy.rb, line 112
        def copy_to(destination, submodules = false)
          # method 1
          unless File.exist?(destination.join(".git"))
            begin
              SharedHelpers.filesystem_access(destination.dirname) do |p|
                FileUtils.mkdir_p(p)
              end
              SharedHelpers.filesystem_access(destination) do |p|
                FileUtils.rm_rf(p)
              end
              git_retry %(clone --no-checkout --quiet "#{path}" "#{destination}")
              File.chmod(((File.stat(destination).mode | 0o777) & ~File.umask), destination)
            rescue Errno::EEXIST => e
              file_path = e.message[%{.*?(/.*)}, 1]
              raise GitError, "Bundler could not install a gem because it needs to "                  "create a directory, but a file exists - #{file_path}. Please delete "                  "this file and try again."
            end
          end
          # method 2
          SharedHelpers.chdir(destination) do
            git_retry %(fetch --force --quiet --tags "#{path}")

            begin
              git "reset --hard #{@revision}"
            rescue GitCommandError
              raise MissingGitRevisionError.new(@revision, URICredentialsFilter.credential_filtered_uri(uri))
            end

            if submodules
              git_retry "submodule update --init --recursive"
            elsif Gem::Version.create(version) >= Gem::Version.create("2.9.0")
              git_retry "submodule deinit --all --force"
            end
          end
        end