WIP - importing file and repo

app/services/projects/import_export/import_service.rb

@@ -2,17 +2,24 @@ module Projects
   module ImportExport
     class ExportService < BaseService
       def execute(options = {})
+
         @import_path = options[:import_path]
+        restore_project_tree
+        restore_repo(project_tree.project)
       end
 
       private
 
       def restore_project_tree
-        Gitlab::ImportExport::ProjectTreeRestorer.new(path: @import_path).restore
+        project_tree.restore
       end
 
-      def restore_repo
+      def project_tree
+        @project_tree ||= Gitlab::ImportExport::ProjectTreeRestorer.new(path: @import_path, user: @current_user)
+      end
 
+      def restore_repo(project)
+        Gitlab::ImportExport::RepoRestorer.new(path: @import_path, project: project).restore
       end
     end
   end

lib/gitlab/import_export/command_line_util.rb

@@ -5,6 +5,14 @@ module Gitlab
         tar_with_options(archive: archive, dir: dir, options: 'cf')
       end
 
+      def untar_czf(archive:, dir:)
+        untar_with_options(archive: archive, dir: dir, options: 'czf')
+      end
+
+      def untar_cf(archive:, dir:)
+        untar_with_options(archive: archive, dir: dir, options: 'cf')
+      end
+
       def tar_czf(archive:, dir:)
         tar_with_options(archive: archive, dir: dir, options: 'czf')
       end
@@ -20,6 +28,12 @@ module Gitlab
         _output, status = Gitlab::Popen.popen(cmd)
         status.zero?
       end
+
+      def untar_with_options(archive:, dir:, options:)
+        cmd = %W(tar -#{options} #{archive)} -C #{dir})
+        _output, status = Gitlab::Popen.popen(cmd)
+        status.zero?
+      end
     end
   end
 end

lib/gitlab/import_export/importer.rb

+module Gitlab
+  module ImportExport
+    class Importer
+      include Gitlab::ImportExport::CommandLineUtil
+
+      def self.import(*args)
+        new(*args).import
+      end
+
+      def initialize(archive_file:, storage_path:)
+        @archive_file = archive_file
+        @storage_path = storage_path
+      end
+
+      def import
+        decompress_export
+      end
+
+      private
+
+      def decompress
+        untar_czf(archive: archive_file, dir: @storage_path)
+      end
+    end
+  end
+end

lib/gitlab/import_export/repo_restorer.rb

+module Gitlab
+  module ImportExport
+    class RepoRestorer
+      include Gitlab::ImportExport::CommandLineUtil
+
+      def initialize(project: , path: )
+        @project = project
+        @path = path
+      end
+
+      def restore
+        return false unless File.exists?(@path)
+          # Move repos dir to 'repositories.old' dir
+
+        FileUtils.mkdir_p(repos_path)
+        FileUtils.mkdir_p(path_to_repo)
+        untar_cf(archive: @path, dir: path_to_repo)
+      end
+
+      private
+
+      def repos_path
+        Gitlab.config.gitlab_shell.repos_path
+      end
+
+      def path_to_repo
+        @project.repository.path_to_repo
+      end
+    end
+  end
+end