private void ProcessPatchXml(WixBundlePayloadSymbol packagePayload, WixBundleMspPackageSymbol mspPackage, string sourcePath)
{
var uniqueTargetCodes = new HashSet <string>();
var patchXml = Dtf.Installer.ExtractPatchXmlData(sourcePath);
var doc = new XmlDocument();
doc.LoadXml(patchXml);
var nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("p", "http://www.microsoft.com/msi/patch_applicability.xsd");
// Determine target ProductCodes and/or UpgradeCodes.
foreach (XmlNode node in doc.SelectNodes("/p:MsiPatch/p:TargetProduct", nsmgr))
{
// If this patch targets a product code, this is the best case.
var targetCodeElement = node.SelectSingleNode("p:TargetProductCode", nsmgr);
var attributes = WixBundlePatchTargetCodeAttributes.None;
if (ProcessMspPackageCommand.TargetsCode(targetCodeElement))
{
attributes = WixBundlePatchTargetCodeAttributes.TargetsProductCode;
}
else // maybe targets an upgrade code?
{
targetCodeElement = node.SelectSingleNode("p:UpgradeCode", nsmgr);
if (ProcessMspPackageCommand.TargetsCode(targetCodeElement))
{
attributes = WixBundlePatchTargetCodeAttributes.TargetsUpgradeCode;
}
else // this patch targets an unknown number of products
{
mspPackage.Attributes |= WixBundleMspPackageAttributes.TargetUnspecified;
}
}
var targetCode = targetCodeElement.InnerText;
if (uniqueTargetCodes.Add(targetCode))
{
this.Section.AddSymbol(new WixBundlePatchTargetCodeSymbol(packagePayload.SourceLineNumbers)
{
PackageRef = packagePayload.Id.Id,
TargetCode = targetCode,
Attributes = attributes
});
}
}
// Suppress patch sequence data for improved performance.
var root = doc.DocumentElement;
foreach (XmlNode node in root.SelectNodes("p:SequenceData", nsmgr))
{
root.RemoveChild(node);
}
// Save the XML as compact as possible.
using (var writer = new StringWriter())
{
var settings = new XmlWriterSettings()
{
Encoding = ProcessMspPackageCommand.XmlOutputEncoding,
Indent = false,
NewLineChars = String.Empty,
NewLineHandling = NewLineHandling.Replace,
};
using (var xmlWriter = XmlWriter.Create(writer, settings))
{
doc.WriteTo(xmlWriter);
}
mspPackage.PatchXml = writer.ToString();
}
}
