public void UninstallPackage(Package package, bool checkDependencies = true)
{
if (checkDependencies)
{
OnStatusChanged(new StatusEventArgs(package, StatusType.CheckingDependencies, 0));
Console.WriteLine("Checking for depending packages: {0}", package.Name);
// Check depending packages before uninstall
foreach (string xml in Cache.GetAllCachedPackageXml())
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
if (doc.SelectNodes("//dependencies/package[@id=\"" + package.Name + "\"]").OfType<XmlNode>().Any())
throw new DependencyException(string.Format("Package {0} is depending on package {1} which was marked for uninstallation.", doc.SelectSingleNode("//package/name").InnerText, package.Name));
}
}
OnStatusChanged(new StatusEventArgs(package, StatusType.Uninstalling, 0));
package.Uninstall(TargetDirectory);
OnStatusChanged(new StatusEventArgs(package, StatusType.Finalizing, 1));
Cache.DeleteCache(package.ID);
OnStatusChanged(new StatusEventArgs(package, StatusType.Finished, 1));
}
private void InstallDependenciesOfPackage(Package package)
{
//Console.WriteLine("Checking dependencies of package: {0}", package.Name);
// TODO: Soft dependencies? See Package.cs and Dependency.cs for suggestions.
var packages = from pkg in package.Dependencies select GetRemotePackage(pkg);
int i = 0;
int j = packages.Count();
foreach (var currentPackage in packages)
{
OnStatusChanged(new StatusEventArgs(package, StatusType.CheckingDependencies, (float)(i / j)));
// This expects all packages to be hard requirements ("needed to have this package working")
if (!Cache.IsCached(currentPackage.ID)) // not installed?
{
Log.DebugFormat("Dependency needs to be installed for {1}: {0}", currentPackage.ID, package.ID);
OnStatusChanged(new StatusEventArgs(package, StatusType.InstallingDependencies, (float)(i / j)));
InstallPackage(currentPackage);
}
i++;
}
}
private void InstallPackage(Package package)
{
InstallDependenciesOfPackage(package);
OnStatusChanged(new StatusEventArgs(package, StatusType.Installing, 0));
package.Install(TargetDirectory);
OnStatusChanged(new StatusEventArgs(package, StatusType.Finalizing, 1));
Cache.CachePackage(package.ID, package.Version, package._packageXmlNode.OwnerDocument.OuterXml);
OnStatusChanged(new StatusEventArgs(package, StatusType.Finished, 1));
}
public StatusEventArgs(Package package, StatusType status, float progress)
{
Package = package;
Status = status;
Progress = progress;
}
