private void UninstallPackage(IPackageInfo packageInfo, string uninstallPackagePath)
{
PackageFileList fileList = null;
string tempFolder = uninstallPackagePath + ".extracted/";
if (Directory.Exists(tempFolder))
{
Directory.Delete(tempFolder, true);
}
using (ZipFile zip = new ZipFile(uninstallPackagePath)) {
foreach (ZipEntry entry in zip)
{
entry.Extract(tempFolder, ExtractExistingFileAction.OverwriteSilently);
}
}
using (FileStream stream = new FileStream(tempFolder + "FileList.xml", FileMode.Open, FileAccess.Read, FileShare.None)) {
fileList = LoadPackageFileList(stream);
}
ExecuteUninstallation(tempFolder + packageInfo.FullID + ".dll", packageInfo, fileList);
if (Directory.Exists(tempFolder))
{
Directory.Delete(tempFolder, true);
}
}
private PackageFileList LoadPackageFileList(Stream fileListStream)
{
PackageFileList fileList = new PackageFileList();
using (XmlReader reader = XmlReader.Create(fileListStream)) {
while (reader.Read())
{
if (reader.IsStartElement())
{
switch (reader.Name)
{
case "File": {
PackageFileListItem item = new PackageFileListItem(this.packageListDirectory, reader.ReadString().TrimStart('\\'));
fileList.Add(item);
}
break;
}
}
}
}
return(fileList);
}
private void ExecuteUninstallation(string packagePath, IPackageInfo packageInfo, PackageFileList fileList)
{
PackageLoader loader = new PackageLoader();
loader.LoadPackage(packagePath);
loader.Package.Initialize(this);
PackageUninstaller uninstaller = new PackageUninstaller(packageInfo, fileList);
// Start installing the package
loader.Package.Uninstall(uninstaller);
// Uninstallation complete! Add this package to the installed packages list
int removalCount = MarkPackageUninstalled(uninstaller.Package.FullID);
if (removalCount > 0)
{
SaveInstalledPackageList();
}
loader.Unload();
}
private PackageFileList LoadPackageFileList(Stream fileListStream)
{
PackageFileList fileList = new PackageFileList();
using (XmlReader reader = XmlReader.Create(fileListStream)) {
while (reader.Read()) {
if (reader.IsStartElement()) {
switch (reader.Name) {
case "File": {
PackageFileListItem item = new PackageFileListItem(this.packageListDirectory, reader.ReadString().TrimStart('\\'));
fileList.Add(item);
}
break;
}
}
}
}
return fileList;
}
private void ExecuteUninstallation(string packagePath, IPackageInfo packageInfo, PackageFileList fileList)
{
PackageLoader loader = new PackageLoader();
loader.LoadPackage(packagePath);
loader.Package.Initialize(this);
PackageUninstaller uninstaller = new PackageUninstaller(packageInfo, fileList);
// Start installing the package
loader.Package.Uninstall(uninstaller);
// Uninstallation complete! Add this package to the installed packages list
int removalCount = MarkPackageUninstalled(uninstaller.Package.FullID);
if (removalCount > 0) {
SaveInstalledPackageList();
}
loader.Unload();
}