static LauncherApp()
{
var assembly = typeof(Program).Assembly;
var assemblyInformationalVersion = CustomAttributeProviderExtensions.GetCustomAttribute <AssemblyInformationalVersionAttribute>(assembly);
Version = assemblyInformationalVersion.InformationalVersion;
}
private void SelfUpdate()
{
var version = new SemanticVersion(Version);
var productAttribute = CustomAttributeProviderExtensions.GetCustomAttribute <AssemblyProductAttribute>(typeof(LauncherApp).Assembly);
var packageId = productAttribute.Product;
var package = store.Manager.SourceRepository.GetUpdates(new[] { new PackageName(packageId, version) }, true, false).FirstOrDefault();
// Check to see if an update is needed
if (package != null && version < package.Version)
{
var movedFiles = new List <string>();
// Copy files from tools\ to the current directory
var inputFiles = package.GetFiles();
const string directoryRoot = "tools\\"; // Important!: this is matching where files are store in the nuspec
foreach (var file in inputFiles.Where(file => file.Path.StartsWith(directoryRoot)))
{
var fileName = Path.Combine(store.RootDirectory, file.Path.Substring(directoryRoot.Length));
// Move previous files to .old
string renamedPath = fileName + ".old";
try
{
if (File.Exists(fileName))
{
Move(fileName, renamedPath);
movedFiles.Add(fileName);
}
// Update the file
UpdateFile(fileName, file);
}
catch (Exception)
{
// Revert all olds files if a file didn't work well
foreach (var oldFile in movedFiles)
{
renamedPath = oldFile + ".old";
Move(renamedPath, oldFile);
}
return;
}
}
// Remove .old files
foreach (var oldFile in movedFiles)
{
try
{
var renamedPath = oldFile + ".old";
if (File.Exists(renamedPath))
{
File.Delete(renamedPath);
}
}
catch (Exception)
{
}
}
IsSelfUpdated = true;
}
}