private async Task RefreshPackagesAsync()
{
IEnumerable <DBPackageView> views;
try {
views = DBPackageView.FromModuleList(
await _provider.EnumerateAllModules(),
await _provider.EnumerateStdLibModules(),
_provider.Factory
).ToList();
} catch (InvalidOperationException) {
// Configuration is invalid, so don't display any packages
return;
}
if (_packages == null)
{
lock (_packagesLock) {
_packages = _packages ?? new ObservableCollection <DBPackageView>();
}
}
await Dispatcher.InvokeAsync(() => {
lock (_packagesLock) {
_packages.Merge(
views,
DBPackageViewComparer.Instance,
DBPackageViewComparer.Instance
);
}
});
}
public static IEnumerable <DBPackageView> FromModuleList(
IList <string> modules,
IList <string> stdLibModules,
IPythonInterpreterFactoryWithDatabase factory
)
{
var stdLib = new HashSet <string>(stdLibModules, StringComparer.Ordinal);
var stdLibPackage = new DBPackageView(Resources.StandardLibraryModuleListItem);
yield return(stdLibPackage);
#if DEBUG
var seenPackages = new HashSet <string>(StringComparer.Ordinal);
#endif
HashSet <string> knownModules = null;
bool areKnownModulesUpToDate = false;
if (!factory.IsCurrent)
{
knownModules = new HashSet <string>(factory.GetUpToDateModules(), StringComparer.Ordinal);
areKnownModulesUpToDate = true;
}
for (int i = 0; i < modules.Count;)
{
if (stdLib.Contains(modules[i]))
{
stdLibPackage._isUpToDate = knownModules == null ||
knownModules.Contains(modules[i]) == areKnownModulesUpToDate;
stdLibPackage._moduleCount += 1;
i += 1;
continue;
}
#if DEBUG
Debug.Assert(seenPackages.Add(modules[i]));
#endif
var package = new DBPackageView(modules[i]);
package._isUpToDate = knownModules == null ||
knownModules.Contains(modules[i]) == areKnownModulesUpToDate;
package._moduleCount = 1;
var dotName = package._fullname + ".";
for (++i; i < modules.Count && modules[i].StartsWith(dotName, StringComparison.Ordinal); ++i)
{
package._isUpToDate &= knownModules == null ||
knownModules.Contains(modules[i]) == areKnownModulesUpToDate;
package._moduleCount += 1;
}
yield return(package);
}
}
public static IEnumerable <DBPackageView> FromModuleList(
IList <string> modules,
IList <string> stdLibModules,
IPythonInterpreterFactoryWithDatabase factory
)
{
var stdLib = new HashSet <string>(stdLibModules, StringComparer.Ordinal);
var stdLibPackage = new DBPackageView("(Standard Library)");
yield return(stdLibPackage);
#if DEBUG
var seenPackages = new HashSet <string>(StringComparer.Ordinal);
#endif
HashSet <string> knownModules = null;
bool areKnownModulesUpToDate = false;
if (!factory.IsCurrent)
{
var factory2 = factory as IPythonInterpreterFactoryWithDatabase2;
if (factory2 == null)
{
knownModules = new HashSet <string>(Regex.Matches(
factory.GetIsCurrentReason(CultureInfo.InvariantCulture),
@"\b[\w\d\.]+\b"
).Cast <Match>().Select(m => m.Value),
StringComparer.Ordinal
);
areKnownModulesUpToDate = false;
}
else
{
knownModules = new HashSet <string>(factory2.GetUpToDateModules(), StringComparer.Ordinal);
areKnownModulesUpToDate = true;
}
}
for (int i = 0; i < modules.Count;)
{
if (stdLib.Contains(modules[i]))
{
stdLibPackage._isUpToDate = knownModules == null ||
knownModules.Contains(modules[i]) == areKnownModulesUpToDate;;
stdLibPackage._moduleCount += 1;
i += 1;
continue;
}
#if DEBUG
Debug.Assert(seenPackages.Add(modules[i]));
#endif
var package = new DBPackageView(modules[i]);
package._isUpToDate = knownModules == null ||
knownModules.Contains(modules[i]) == areKnownModulesUpToDate;
package._moduleCount = 1;
var dotName = package._fullname + ".";
for (++i; i < modules.Count && modules[i].StartsWith(dotName, StringComparison.Ordinal); ++i)
{
package._isUpToDate &= knownModules == null ||
knownModules.Contains(modules[i]) == areKnownModulesUpToDate;
package._moduleCount += 1;
}
yield return(package);
}
}