public IUpdateCheckResult CheckForUpdates(string updateURI)
{
UpdateCheckResult result = new UpdateCheckResult(updateURI, Substring(updateURI, 0, updateURI.LastIndexOf("/") + 1));
List <IPackageInfo> allPackages = ReadUpdateFile(result);
for (int i = 0; i < allPackages.Count; i++)
{
for (int reqs = 0; reqs < allPackages[i].Prerequisites.Count; reqs++)
{
if (allPackages[i].Prerequisites[reqs].Version == -1)
{
IPackageInfo packageInfo = FindPackageByID(allPackages, allPackages[i].Prerequisites[reqs].FullID);
if (packageInfo != null)
{
allPackages[i].Prerequisites[reqs].Version = packageInfo.Version;
}
}
}
if (CanInstallPackage(allPackages[i]))
{
// We need to install this package. So, let's read the rest of the data
((PackageInfo)allPackages[i]).ReadFullFromXml(XmlReader.Create(result.UpdateDirectory + "Packages/" + allPackages[i].FullID + "/" + allPackages[i].FullID + ".xml"));
// And add it to the list of packages in the update
result.PackagesToUpdate.Add(allPackages[i]);
}
}
return(result);
}
private List <IPackageInfo> ReadUpdateFile(UpdateCheckResult updateResult)
{
List <IPackageInfo> packageInfoList = new List <IPackageInfo>();
using (XmlReader reader = XmlReader.Create(updateResult.UpdateURI)) {
while (reader.Read())
{
if (reader.IsStartElement())
{
switch (reader.Name)
{
case "Package": {
PackageInfo package = new PackageInfo();
package.ReadBasicFromXml(reader);
packageInfoList.Add(package);
}
break;
}
}
}
}
return(packageInfoList);
}