public override string EvaluateFunction(string prefix, string function, string[] args)
{
switch (function)
{
case "VarNullOrEmpty":
if (args.Length != 1 || string.IsNullOrEmpty(args[0]))
{
throw new WixException(WixErrors.InvalidPreprocessorFunction(null, function));
}
string val = Core.GetVariableValue(null, args[0], true);
return(string.IsNullOrEmpty(val) ? "1" : "0");
case "AutoGuid":
if (args.Length == 0)
{
throw new WixException(WixErrors.InvalidPreprocessorFunction(null, function));
}
string key = args.Aggregate((a, c) => $"{a}\\{c}");
string guid = CompilerCore.NewGuid(new Guid("{F026BBCE-4776-402C-BF36-352781805165}"), key);
return(guid);
case "FileExists":
if (args.Length != 1 || string.IsNullOrEmpty(args[0]))
{
throw new WixException(WixErrors.InvalidPreprocessorFunction(null, function));
}
return(File.Exists(args[0]) ? "1" : "0");
case "DirExists":
if (args.Length != 1 || string.IsNullOrEmpty(args[0]))
{
throw new WixException(WixErrors.InvalidPreprocessorFunction(null, function));
}
return(Directory.Exists(args[0]) ? "1" : "0");
case "DirEmpty":
if (args.Length != 1 || string.IsNullOrEmpty(args[0]))
{
throw new WixException(WixErrors.InvalidPreprocessorFunction(null, function));
}
return((Directory.Exists(args[0]) && (Directory.GetFiles(args[0], "*", SearchOption.AllDirectories).Length > 0)) ? "0" : "1");
default:
return(null);
}
}
/// <summary>
/// Parses a CfgException element.
/// </summary>
/// <param name="node">The element to parse.</param>
private void ParseCfgProductElement(XElement node)
{
SourceLineNumber sourceLineNumbers = Preprocessor.GetSourceLineNumbers(node);
string name = null;
string version = null;
string publickey = null;
string feature = null;
foreach (XAttribute attrib in node.Attributes())
{
if (String.IsNullOrEmpty(attrib.Name.NamespaceName) || this.Namespace == attrib.Name.Namespace)
{
switch (attrib.Name.LocalName)
{
case "Name":
name = this.Core.GetAttributeValue(sourceLineNumbers, attrib);
break;
case "Version":
version = this.Core.GetAttributeValue(sourceLineNumbers, attrib);
break;
case "PublicKey":
publickey = this.Core.GetAttributeValue(sourceLineNumbers, attrib);
break;
case "Feature":
feature = this.Core.GetAttributeValue(sourceLineNumbers, attrib);
break;
default:
this.Core.UnexpectedAttribute(sourceLineNumbers, attrib);
break;
}
}
else
{
this.Core.ParseExtensionAttribute(node, attrib);
}
}
// Id and Name are required
if (null == name)
{
this.Core.OnMessage(WixErrors.ExpectedAttribute(sourceLineNumbers, node.Name.LocalName, "Name"));
}
if (null == version)
{
this.Core.OnMessage(WixErrors.ExpectedAttribute(sourceLineNumbers, node.Name.LocalName, "Version"));
}
if (null == publickey)
{
this.Core.OnMessage(WixErrors.ExpectedAttribute(sourceLineNumbers, node.Name.LocalName, "PublicKey"));
}
if (null == feature)
{
this.Core.OnMessage(WixErrors.ExpectedAttribute(sourceLineNumbers, node.Name.LocalName, "Feature"));
}
this.Core.ParseForExtensionElements(node);
if (!this.Core.EncounteredError)
{
string componentGuid = CompilerCore.NewGuid(CfgConstants.wixCfgGuidNamespace, name + "_" + version + "_" + publickey);
string componentId = "Cfg_" + componentGuid.Substring(1, componentGuid.Length - 2).Replace("-", "_"); // Cutoff the curly braces and switch dashes to underscrores to get the componentID
string regId = "Reg_" + componentId;
Row componentRow = this.Core.CreateRow(sourceLineNumbers, "Component");
componentRow[0] = componentId;
componentRow[1] = componentGuid;
componentRow[2] = "TARGETDIR";
componentRow[3] = MsidbComponentAttributesRegistryKeyPath;
componentRow[4] = "";
componentRow[5] = regId;
Row featureComponentRow = this.Core.CreateRow(sourceLineNumbers, "FeatureComponents");
featureComponentRow[0] = feature;
featureComponentRow[1] = componentId;
Row cfgRow = this.Core.CreateRow(sourceLineNumbers, "WixCfgProducts");
cfgRow[0] = name;
cfgRow[1] = version;
cfgRow[2] = publickey;
cfgRow[3] = componentId;
Row regRow = this.Core.CreateRow(sourceLineNumbers, "Registry");
regRow[0] = regId;
regRow[1] = MsidbRegistryRootLocalMachine;
regRow[2] = "SOFTWARE\\Wix\\SettingsStore\\Products";
regRow[3] = name + ", " + version + ", " + publickey;
regRow[4] = "#1";
regRow[5] = componentId;
this.Core.CreateWixSimpleReferenceRow(sourceLineNumbers, "Feature", feature);
this.Core.CreateWixSimpleReferenceRow(sourceLineNumbers, "CustomAction", "SchedCfgProductsInstall");
this.Core.CreateWixSimpleReferenceRow(sourceLineNumbers, "CustomAction", "SchedCfgProductsUninstall");
}
}