RuntimeAddin[] GetDepAddins()
{
if (depAddins != null)
{
return(depAddins);
}
var plugList = new List <RuntimeAddin> ();
string ns = ainfo.Description.Namespace;
// Collect dependent ids
foreach (Dependency dep in module.Dependencies)
{
AddinDependency pdep = dep as AddinDependency;
if (pdep != null)
{
RuntimeAddin adn = addinEngine.GetAddin(Addin.GetFullId(ns, pdep.AddinId, pdep.Version));
if (adn != null)
{
plugList.Add(adn);
}
else
{
addinEngine.ReportError("Add-in dependency not loaded: " + pdep.FullAddinId, module.ParentAddinDescription.AddinId, null, false);
}
}
}
return(depAddins = plugList.ToArray());
}
bool ResolveLoadDependencies(List <Addin> addins, Stack depCheck, string id, bool optional)
{
if (IsAddinLoaded(id))
{
return(true);
}
if (depCheck.Contains(id))
{
throw new InvalidOperationException("A cyclic addin dependency has been detected.");
}
Addin iad = Registry.GetAddin(id);
if (iad == null || !iad.Enabled)
{
if (optional)
{
return(false);
}
else if (iad != null && !iad.Enabled)
{
throw new MissingDependencyException(GettextCatalog.GetString("The required addin '{0}' is disabled.", id));
}
else
{
throw new MissingDependencyException(GettextCatalog.GetString("The required addin '{0}' is not installed.", id));
}
}
// If this addin has already been requested, bring it to the head
// of the list, so it is loaded earlier than before.
addins.Remove(iad);
addins.Add(iad);
depCheck.Push(id);
try {
foreach (Dependency dep in iad.AddinInfo.Dependencies)
{
AddinDependency adep = dep as AddinDependency;
if (adep != null)
{
try {
string adepid = Addin.GetFullId(iad.AddinInfo.Namespace, adep.AddinId, adep.Version);
ResolveLoadDependencies(addins, depCheck, adepid, false);
} catch (MissingDependencyException) {
if (optional)
{
return(false);
}
else
{
throw;
}
}
}
}
if (iad.AddinInfo.OptionalDependencies != null)
{
foreach (Dependency dep in iad.AddinInfo.OptionalDependencies)
{
AddinDependency adep = dep as AddinDependency;
if (adep != null)
{
string adepid = Addin.GetFullId(iad.Namespace, adep.AddinId, adep.Version);
if (!ResolveLoadDependencies(addins, depCheck, adepid, true))
{
return(false);
}
}
}
}
} finally {
depCheck.Pop();
}
return(true);
}
