/// <summary>
/// Silently checks if an update for Zero Install is available.
/// </summary>
/// <returns>The version number of the newest available update; <c>null</c> if no update is available.</returns>
public static ImplementationVersion?SilentUpdateCheck()
{
if (!IsDeployed || !NetUtils.IsInternetConnected)
{
return(null);
}
using var handler = new SilentTaskHandler();
var services = new ServiceProvider(handler)
{
FeedManager = { Refresh = true }
};
if (services.Config is { NetworkUse : NetworkLevel.Offline } or {
SelfUpdateUri : null
})
/// <summary>
/// Silently checks if an update for Zero Install is available.
/// </summary>
/// <returns>The version number of the newest available update; <c>null</c> if no update is available.</returns>
public static ImplementationVersion?SilentUpdateCheck()
{
if (!IsDeployed || !NetUtils.IsInternetConnected)
{
return(null);
}
using var handler = new SilentTaskHandler();
var services = new ServiceProvider(handler)
{
FeedManager = { Refresh = true }
};
if (services.Config.NetworkUse == NetworkLevel.Offline || services.Config.SelfUpdateUri == null)
{
return(null);
}
try
{
var selections = services.Solver.Solve(services.Config.SelfUpdateUri);
var newVersion = selections.MainImplementation.Version;
return((newVersion > Version) ? newVersion : null);
}
#region Error handling
catch (OperationCanceledException)
{
return(null);
}
catch (WebException ex)
{
Log.Debug(ex);
return(null);
}
catch (Exception ex) when(ex is UriFormatException or IOException or UnauthorizedAccessException or SignatureException or SolverException or InvalidDataException)
{
Log.Warn("Problem with silent self-update check");
Log.Warn(ex);
return(null);
}
#endregion
}
}
protected virtual void Execute()
{
using (var handler = new SilentTaskHandler())
handler.RunTask(Target);
}
/// <summary>
/// Silently checks if an update for Zero Install is available.
/// </summary>
/// <returns>The version number of the newest available update; <c>null</c> if no update is available.</returns>
public static ImplementationVersion?SilentUpdateCheck()
{
if (IsRunningFromCache || !NetUtils.IsInternetConnected)
{
return(null);
}
using var handler = new SilentTaskHandler();
var services = new ServiceLocator(handler)
{
FeedManager = { Refresh = true }
};
if (services.Config.NetworkUse == NetworkLevel.Offline || services.Config.SelfUpdateUri == null)
{
return(null);
}
var requirements = new Requirements(services.Config.SelfUpdateUri);
try
{
var selections = services.Solver.Solve(requirements);
var newVersion = selections.MainImplementation.Version;
return((newVersion > ImplementationVersion.ZeroInstall) ? newVersion : null);
}
#region Error handling
catch (OperationCanceledException)
{
return(null);
}
catch (WebException ex)
{
Log.Debug(ex);
return(null);
}
catch (IOException ex)
{
Log.Warn("Problem with silent self-update check");
Log.Warn(ex);
return(null);
}
catch (UnauthorizedAccessException ex)
{
Log.Warn("Problem with silent self-update check");
Log.Warn(ex);
return(null);
}
catch (SignatureException ex)
{
Log.Warn("Problem with silent self-update check");
Log.Warn(ex);
return(null);
}
catch (UriFormatException ex)
{
Log.Warn("Problem with silent self-update check");
Log.Warn(ex);
return(null);
}
catch (SolverException ex)
{
Log.Warn("Problem with silent self-update check");
Log.Warn(ex);
return(null);
}
catch (InvalidDataException ex)
{
Log.Warn("Problem with silent self-update check");
Log.Warn(ex);
return(null);
}
#endregion
}
