use git bundle in import and add wiki repo to import

lib/gitlab/import_export/command_line_util.rb

@@ -23,6 +23,12 @@ module Gitlab
         status.zero?
       end
 
+      def git_unbundle(git_bin_path: Gitlab.config.git.bin_path, repo_path:, bundle_path:)
+        cmd = %W(#{git_bin_path} clone --bare #{bundle_path} #{repo_path})
+        _output, status = Gitlab::Popen.popen(cmd)
+        status.zero?
+      end
+
       def tar_with_options(archive:, dir:, options:)
         cmd = %W(tar -#{options} #{archive} -C #{dir} .)
         _output, status = Gitlab::Popen.popen(cmd)

lib/gitlab/import_export/import_service.rb

@@ -15,7 +15,7 @@ module Gitlab
 
       def execute
         Gitlab::ImportExport::Importer.import(archive_file: @archive_file, storage_path: storage_path)
-        project_tree.project if [restore_project_tree, restore_repo].all?
+        project_tree.project if [restore_project_tree, restore_repo, restore_wiki_repo].all?
       end
 
       private
@@ -29,7 +29,11 @@ module Gitlab
       end
 
       def restore_repo
-        Gitlab::ImportExport::RepoRestorer.new(path: storage_path, project: project_tree.project).restore
+        Gitlab::ImportExport::RepoRestorer.new(path: repo_path, project: project_tree.project).restore
+      end
+
+      def restore_wiki_repo
+        Gitlab::ImportExport::RepoRestorer.new(path: wiki_repo_path, project: project_tree.project).restore
       end
 
       def storage_path
@@ -39,6 +43,14 @@ module Gitlab
       def path_with_namespace
         File.join(@namespace.path, @project_path)
       end
+
+      def repo_path
+        File.join('storage_path', 'project.bundle')
+      end
+
+      def wiki_repo_path
+        File.join('storage_path', 'project.wiki.bundle')
+      end
     end
   end
 end

lib/gitlab/import_export/repo_restorer.rb

@@ -3,19 +3,18 @@ module Gitlab
     class RepoRestorer
       include Gitlab::ImportExport::CommandLineUtil
 
-      def initialize(project:, path:)
+      def initialize(project:, path_to_bundle: )
         @project = project
-        # TODO remove magic keyword and move it to a shared config
-        @path = File.join(path, 'project.bundle')
+        @path_to_bundle = path_to_bundle
       end
 
       def restore
-        return false unless File.exists?(@path)
-        # Move repos dir to 'repositories.old' dir
+        return true unless File.exists?(@path)
 
         FileUtils.mkdir_p(repos_path)
         FileUtils.mkdir_p(path_to_repo)
-        untar_xf(archive: @path, dir: path_to_repo)
+
+        git_unbundle(git_bin_path: Gitlab.config.git.bin_path, repo_path: path_to_repo, bundle_path: @path_to_bundle)
       end
 
       private