1 files changed, 72 insertions, 0 deletions
diff --git a/lib/ci/migrate/manager.rb b/lib/ci/migrate/manager.rb
new file mode 100644
index 00000000000..9405397031c
--- /dev/null
+++ b/lib/ci/migrate/manager.rb
@@ -0,0 +1,72 @@
+module Ci
+  module Migrate
+    class Manager
+      VERSION = '8.0.0.pre'
+
+      def cleanup
+        $progress.print "Deleting tmp directories ... "
+
+        backup_contents.each do |dir|
+          next unless File.exist?(File.join(Gitlab.config.backup.path, dir))
+
+          if FileUtils.rm_rf(File.join(Gitlab.config.backup.path, dir))
+            $progress.puts "done".green
+          else
+            puts "deleting tmp directory '#{dir}' failed".red
+            abort 'Backup failed'
+          end
+        end
+      end
+
+      def unpack
+        Dir.chdir(Gitlab.config.backup.path)
+
+        # check for existing backups in the backup dir
+        file_list = Dir.glob("*_gitlab_ci_backup.tar").each.map { |f| f.split(/_/).first.to_i }
+        puts "no backups found" if file_list.count == 0
+
+        if file_list.count > 1 && ENV["BACKUP"].nil?
+          puts "Found more than one backup, please specify which one you want to restore:"
+          puts "rake gitlab:backup:restore BACKUP=timestamp_of_backup"
+          exit 1
+        end
+
+        tar_file = ENV["BACKUP"].nil? ? File.join("#{file_list.first}_gitlab_ci_backup.tar") : File.join(ENV["BACKUP"] + "_gitlab_ci_backup.tar")
+
+        unless File.exists?(tar_file)
+          puts "The specified CI backup doesn't exist!"
+          exit 1
+        end
+
+        $progress.print "Unpacking backup ... "
+
+        unless Kernel.system(*%W(tar -xf #{tar_file}))
+          puts "unpacking backup failed".red
+          exit 1
+        else
+          $progress.puts "done".green
+        end
+
+        ENV["VERSION"] = "#{settings[:db_version]}" if settings[:db_version].to_i > 0
+
+        # restoring mismatching backups can lead to unexpected problems
+        if settings[:gitlab_version] != VERSION
+          puts "GitLab CI version mismatch:".red
+          puts "  Your current GitLab CI version (#{VERSION}) differs from the GitLab CI (#{settings[:gitlab_version]}) version in the backup!".red
+          exit 1
+        end
+      end
+
+      private
+
+      def backup_contents
+        ["db", "builds", "backup_information.yml"]
+      end
+
+      def settings
+        @settings ||= YAML.load_file("backup_information.yml")
+      end
+    end
+  end
+end
+