public void TestUninstallResolverDependenciesDict()
{
IDictionary <PackageIdentity, HashSet <PackageIdentity> > dependenciesDict;
var dependentsDict = UninstallResolver.GetPackageDependents(PackageDependencyInfo1,
InstalledPackages1,
out dependenciesDict);
var keysList = dependenciesDict.Keys.ToList();
var valuesList = dependenciesDict.Values.ToList();
Assert.Equal(2, dependenciesDict.Count);
Assert.Equal(A1, keysList[0]);
Assert.True(valuesList[0].Contains(B1));
Assert.True(valuesList[0].Contains(C1));
Assert.Equal(C1, keysList[1]);
Assert.True(valuesList[1].Contains(D1));
Assert.True(valuesList[1].Contains(E1));
}
private async Task <ICollection <PackageIdentity> > GetPackagesCanBeUninstalledAsync(
IEnumerable <SourcePackageDependencyInfo> markedForUninstall,
IEnumerable <PackageIdentity> installedPackages)
{
IDictionary <PackageIdentity, HashSet <PackageIdentity> > dependenciesDictionary;
var dependentsDictionary = UninstallResolver.GetPackageDependents(markedForUninstall, installedPackages, out dependenciesDictionary);
//exclude packages which should not be removed, because of dependent packages
HashSet <PackageIdentity> shouldBeExcludedSet = new HashSet <PackageIdentity>();
foreach (var identity in dependenciesDictionary)
{
var markedOnUninstallDependency = identity.Key;
HashSet <PackageIdentity> dependents;
if (dependentsDictionary.TryGetValue(markedOnUninstallDependency, out dependents) && dependents is not null)
{
var externalDependants = dependents.Where(x => !dependenciesDictionary.ContainsKey(x)).ToList();
if (externalDependants.Count > 0)
{
_nugetLogger.LogInformation($"{identity} package skipped, because one or more installed packages depends on it");
}
externalDependants.ForEach(d => shouldBeExcludedSet.Add(d));
}
}
var markedForUninstallList = markedForUninstall.OfType <PackageIdentity>().ToList();
foreach (var excludedDependency in shouldBeExcludedSet)
{
markedForUninstallList.Remove(excludedDependency);
}
return(markedForUninstallList);
}