/// <summary>
/// Deletes %ProgramData%\Package Cache\guid and all of it's contents if it exists. (where guid = what is in parameterinfo.xml for Registration Id="{4C9C8A65-1159-414A-96D0-1815992D0A7F}") i.e.: C:\ProgramData\{4C9C8A65-1159-414A-96D0-1815992D0A7F}\setup.exe
/// </summary>
public void DeleteEngineCache()
{
if (!String.IsNullOrEmpty(this.RegistrationId))
{
// Delete the per-machine cached engine folder if it exists
// per-machine installs need to be deleted from %ProgramData%\\Package Cache\\RegistrationId
string cacheFolder = System.Environment.ExpandEnvironmentVariables("%ProgramData%\\Package Cache\\" + RegistrationId);
WixTest.Burn.LayoutManager.LayoutManager.RemoveDirectory(cacheFolder);
// Delete the per-user cached engine folder(s) if they exist (for all users)
// per-user installs need to be deleted from %LOCALAPPDATA%\\Package Cache\\RegistrationId
foreach (string directory in UserUtilities.GetAllUserLocalAppDataPaths())
{
// delete the cache for all the other users non-admin user (normal user)
cacheFolder = Path.Combine(directory, "Package Cache\\" + RegistrationId);
WixTest.Burn.LayoutManager.LayoutManager.RemoveDirectory(cacheFolder);
}
}
}
/// <summary>
/// Removes the payload cache for all items in the layout. Be sure to uninstall all the payload before removing the payload cache as it might be needed during uninstall.
/// </summary>
public void DeletePayloadCache()
{
// Files are cached in:
// EXE: // %ProgramData%\Package Cache\filehash\filename.exe
// MSI: // %ProgramData%\Package Cache\productCode_version\filename.msi
// MSP: // %ProgramData%\Package Cache\packageCode\filename.msp
List <string> cacheRootFolders = new List <string>();
// delete payload cache for each item from both per-machine and per-user caches
string cacheRootFolderPerMachine = Path.Combine("%ProgramData%", "Package Cache");
cacheRootFolders.Add(System.Environment.ExpandEnvironmentVariables(cacheRootFolderPerMachine));
foreach (string directory in UserUtilities.GetAllUserLocalAppDataPaths())
{
// delete the cache for all the other users non-admin user (normal user)
string cacheRootFolderPerUser = Path.Combine(directory, "Package Cache");
cacheRootFolders.Add(cacheRootFolderPerUser);
}
foreach (OM.WixAuthoringOM.Bundle.Chain.Package package in m_Layout.Wix.Bundle.Chain.Packages)
{
string packageCacheFoldername = null;
if (!String.IsNullOrEmpty(package.CacheId))
{
packageCacheFoldername = package.CacheId;
foreach (string cacheRootFolder in cacheRootFolders)
{
string fullPackageCachePath = Path.Combine(cacheRootFolder, packageCacheFoldername);
WixTest.Burn.LayoutManager.LayoutManager.RemoveDirectory(fullPackageCachePath);
}
}
else
{
// TODO handle cases where CacheId is not defined. Currently all tests are setting this.
}
}
}