public override int GetHashCode()
{
unchecked
{
var hashCode = (PackageNode != null ? PackageNode.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (VersionSpec != null ? VersionSpec.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (Name != null ? StringComparer.InvariantCultureIgnoreCase.GetHashCode(Name) : 0);
return(hashCode);
}
}
private void AddOrUpdateRequiredPackage(MsbuildProject msbuildProject, string packageId, Referer referer)
{
var packageOfHighestVersion = GetPackageOfHighestVersion(packageId);
var package = packageOfHighestVersion != null && referer.VersionSpec.IsSatisfiedBy(packageOfHighestVersion.Version)
? packageOfHighestVersion
: _nugetServices.GetPackage(
packageId: packageId,
versionSpec: referer.VersionSpec,
allowPrereleaseVersions: _allowPreReleaseVersions);
var packageNode = msbuildProject.PackageNodes
.SingleOrDefault(x => x.RequiredPackage.Id.Equals(packageId, StringComparison.InvariantCultureIgnoreCase));
if (packageNode == null)
{
packageNode = PackageNode.Create(package);
msbuildProject.PackageNodes.Add(packageNode);
}
packageNode.AddReferer(referer);
if (packageOfHighestVersion != null)
{
packageNode.AddReferer(Referer.CreateFromSolutionHighestVersion(packageOfHighestVersion));
}
if (referer.VersionSpec.RequiresLowerThan(packageNode.RequiredPackage.Version))
{
throw new Exception("Installing package would require a downgrade.");
}
if (packageNode.RequiredPackage.Version < package.Version)
{
packageNode.UpdateRequiredPackage(package);
}
if (!packageNode.Referers.All(x => x.VersionSpec.IsSatisfiedBy(packageNode.RequiredPackage.Version)))
{
throw new Exception("Could not resolve dependencies.");
}
foreach (var dependency in packageNode.RequiredPackage.GetDependencies(_nugetServices.GetTargetFrameworkName(msbuildProject.Path)))
{
AddOrUpdateRequiredPackage(msbuildProject, dependency.Id, Referer.Create(packageNode, dependency.VersionSpec));
}
}
private Referer(string name, PackageNode packageNode, IVersionSpec versionSpec)
{
PackageNode = packageNode;
VersionSpec = versionSpec ?? Utility.GetEmptyVersionSpec();
Name = name ?? $"Package: {packageNode.RequiredPackage.Id}";
}
public static Referer Create(PackageNode packageNode, IVersionSpec versionSpec) => new Referer(name: null, packageNode: packageNode, versionSpec: versionSpec);
