public override async Task <bool> UninstallPackageAsync(
PackageIdentity packageIdentity,
INuGetProjectContext nuGetProjectContext,
CancellationToken token)
{
return(await Runtime.RunInMainThread(() => {
PackageReference packageReference = project.FindPackageReference(packageIdentity);
if (packageReference != null)
{
project.PackageReferences.Remove(packageReference);
SaveProject();
}
return true;
}));
}
public override async Task <bool> InstallPackageAsync(
PackageIdentity packageIdentity,
DownloadResourceResult downloadResourceResult,
INuGetProjectContext nuGetProjectContext,
CancellationToken token)
{
return(await Runtime.RunInMainThread(async() => {
// Check if this NuGet package is already installed and should be removed.
PackageReference existingPackageReference = project.FindPackageReference(packageIdentity);
if (existingPackageReference != null)
{
if (ShouldRemoveExistingPackageReference(existingPackageReference, packageIdentity))
{
project.PackageReferences.Remove(existingPackageReference);
}
else
{
nuGetProjectContext.Log(
MessageLevel.Info,
GettextCatalog.GetString("Package '{0}' already installed.", packageIdentity));
return true;
}
}
bool developmentDependency = false;
if (IsNuGetBuildPackagingPackage(packageIdentity))
{
await GlobalPackagesExtractor.Extract(project.ParentSolution, packageIdentity, downloadResourceResult, token);
developmentDependency = true;
GenerateNuGetBuildPackagingTargets(packageIdentity);
}
var packageReference = new PackageReference(packageIdentity);
if (developmentDependency)
{
packageReference.PrivateAssets = "All";
}
project.PackageReferences.Add(packageReference);
await SaveProject();
return true;
}));
}
bool IsNuGetBuildPackagingReference (PackageReference packageReference)
{
return StringComparer.OrdinalIgnoreCase.Equals (packageReference.Include, "NuGet.Build.Packaging");
}
bool IsMatch (PackageReference packageReference, PackageIdentity packageIdentity)
{
return String.Equals (packageReference.Include, packageIdentity.Id, StringComparison.OrdinalIgnoreCase);
}
bool IsNuGetBuildPackagingReference(PackageReference packageReference)
{
return(StringComparer.OrdinalIgnoreCase.Equals(packageReference.Include, "NuGet.Build.Packaging"));
}
bool IsMatch(PackageReference packageReference, PackageIdentity packageIdentity)
{
return(String.Equals(packageReference.Include, packageIdentity.Id, StringComparison.OrdinalIgnoreCase));
}
/// <summary>
/// If the package version is already installed then there is no need to install the
/// NuGet package.
/// </summary>
bool ShouldRemoveExistingPackageReference(PackageReference packageReference, PackageIdentity packageIdentity)
{
var existingPackageReference = packageReference.ToNuGetPackageReference();
return(!VersionComparer.Default.Equals(existingPackageReference.PackageIdentity.Version, packageIdentity.Version));
}
