/// <summary>
/// Analyzes the transforms included in the patch package to find the ones that
/// are applicable to an install package.
/// </summary>
/// <param name="installPackage">The install package to validate the transforms against</param>
/// <returns>Array of valid transform names</returns>
/// <remarks>
/// The returned list does not include the "patch special transforms" that
/// are prefixed with "#" If a transform is valid, then its corresponding
/// special transform is assumed to be valid as well.
/// </remarks>
public string[] GetValidTransforms(InstallPackage installPackage)
{
ArrayList transformArray = new ArrayList();
string transformList = this.SummaryInfo.LastSavedBy;
foreach (string transform in transformList.Split(';', ':'))
{
if (transform.Length != 0 && !transform.StartsWith("#", StringComparison.Ordinal))
{
this.LogMessage("Checking validity of transform {0}", transform);
string tempTransformFile = null;
try
{
tempTransformFile = Path.GetTempFileName();
this.ExtractTransform(transform, tempTransformFile);
if (installPackage.IsTransformValid(tempTransformFile))
{
this.LogMessage("Found valid transform: {0}", transform);
transformArray.Add(transform);
}
}
finally
{
if (tempTransformFile != null && File.Exists(tempTransformFile))
{
try { File.Delete(tempTransformFile); }
catch (IOException) { }
}
}
}
}
return((string[])transformArray.ToArray(typeof(string)));
}