BlogEngine.Core.Providers.XmlBlogProvider.SavePackage C# (CSharp) Method

        public override void SavePackage(InstalledPackage package)
        {
            var fileName = Path.Combine(dataFolder, Constants.InstalledPackagesXml);

            var packages = FillPackages() ?? new List<InstalledPackage>();
            int pkgIndex = -1;

            for (int index = 0; index < packages.Count; index++)
            {
                var p = packages[index];
                if (p.PackageId == package.PackageId)
                {
                    pkgIndex = index;
                    break;
                }
            }

            if(pkgIndex >= 0)
                packages.RemoveAt(pkgIndex);

            packages.Add(package);

            using (var writer = new XmlTextWriter(fileName, Encoding.UTF8))
            {
                writer.Formatting = Formatting.Indented;
                writer.Indentation = 4;
                writer.WriteStartDocument(true);
                writer.WriteStartElement("InstalledPackages");

                foreach (var p in packages)
                {
                    writer.WriteStartElement("item");
                    writer.WriteAttributeString("id", p.PackageId);
                    writer.WriteAttributeString("version", p.Version);
                    writer.WriteEndElement();
                }

                writer.WriteEndElement();
            }
        }