WixVersionFileUpdater.cs

using System;
using System.IO;
using System.Text;
using System.Xml;
using GitVersion.Logging;
using GitVersion.OutputVariables;

namespace GitVersion.VersionConverters.WixUpdater
{
    public interface IWixVersionFileUpdater : IVersionConverter<WixVersionContext>
    {
    }
    public class WixVersionFileUpdater : IWixVersionFileUpdater
    {
        private readonly IFileSystem fileSystem;
        private readonly ILog log;
        private string wixVersionFile;
        public const string WixVersionFileName = "GitVersion_WixVersion.wxi";

        public WixVersionFileUpdater(IFileSystem fileSystem, ILog log)
        {
            this.fileSystem = fileSystem ?? throw new ArgumentNullException(nameof(fileSystem));
            this.log = log ?? throw new ArgumentNullException(nameof(log));
        }

        public void Execute(VersionVariables variables, WixVersionContext context)
        {
            wixVersionFile = Path.Combine(context.WorkingDirectory, WixVersionFileName);
            log.Info("Updating GitVersion_WixVersion.wxi");

            var doc = new XmlDocument();
            doc.LoadXml(GetWixFormatFromVersionVariables(variables));

            var xmlDecl = doc.CreateXmlDeclaration("1.0", "utf-8", null);
            var root = doc.DocumentElement;
            doc.InsertBefore(xmlDecl, root);

            using var fs = fileSystem.OpenWrite(wixVersionFile);
            doc.Save(fs);
        }

        private static string GetWixFormatFromVersionVariables(VersionVariables variables)
        {
            var builder = new StringBuilder();
            builder.Append("<Include xmlns=\"http://schemas.microsoft.com/wix/2006/wi\">\n");
            var availableVariables = VersionVariables.AvailableVariables;
            foreach (var variable in availableVariables)
            {
                variables.TryGetValue(variable, out var value);
                builder.Append($"\t<?define {variable}=\"{value}\"?>\n");
            }
            builder.Append("</Include>\n");
            return builder.ToString();
        }

        public void Dispose()
        {
            log.Info($"Done writing {wixVersionFile}");
        }
    }
}