private void ConsolidateVersions(MsbuildProject project)
{
bool hadWork;
do
{
hadWork = false;
foreach (var node in project.PackageNodes.ToArray())
{
var packageOfHighestVersion = GetPackageOfHighestVersion(node.RequiredPackage.Id);
if (!node.Referers.All(x => x.VersionSpec.IsSatisfiedBy(packageOfHighestVersion.Version)))
{
throw new Exception("Using solution highest package version would not satisfy all version requirements.");
}
if (node.RequiredPackage.Version != packageOfHighestVersion.Version)
{
AddOrUpdateRequiredPackage(project, node.RequiredPackage.Id, Referer.CreateFromSolutionHighestVersion(packageOfHighestVersion));
hadWork = true;
}
}
} while (hadWork);
}
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));
}
}