public override Task <bool> InstallPackageAsync(PackageIdentity packageIdentity, Stream packageStream,
INuGetProjectContext nuGetProjectContext, CancellationToken token)
{
if (packageIdentity == null)
{
throw new ArgumentNullException("packageIdentity");
}
if (nuGetProjectContext == null)
{
throw new ArgumentNullException("nuGetProjectContext");
}
var newPackageReference = new PackageReference(packageIdentity, TargetFramework);
List <PackageReference> installedPackagesList = GetInstalledPackagesList();
var packageReferenceWithSameId = installedPackagesList.Where(p => p.PackageIdentity.Id.Equals(packageIdentity.Id, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
if (packageReferenceWithSameId != null)
{
if (packageReferenceWithSameId.PackageIdentity.Equals(packageIdentity))
{
nuGetProjectContext.Log(MessageLevel.Warning, Strings.PackageAlreadyExistsInPackagesConfig, packageIdentity, Path.GetFileName(FullPath));
return(Task.FromResult(false));
}
else
{
// Higher version of an installed package is being installed. Remove old and add new
installedPackagesList.Remove(packageReferenceWithSameId);
installedPackagesList.Add(newPackageReference);
}
}
else
{
installedPackagesList.Add(newPackageReference);
}
// Create new file or overwrite existing file
using (var stream = FileSystemUtility.CreateFile(FullPath, nuGetProjectContext))
{
var writer = new PackagesConfigWriter(stream);
foreach (var pr in installedPackagesList)
{
writer.WritePackageEntry(pr);
}
writer.Close();
}
nuGetProjectContext.Log(MessageLevel.Info, Strings.AddedPackageToPackagesConfig, packageIdentity, Path.GetFileName(FullPath));
return(Task.FromResult(true));
}
public override Task <bool> UninstallPackageAsync(PackageIdentity packageIdentity, INuGetProjectContext nuGetProjectContext, CancellationToken token)
{
if (packageIdentity == null)
{
throw new ArgumentNullException("packageIdentity");
}
if (nuGetProjectContext == null)
{
throw new ArgumentNullException("nuGetProjectContext");
}
List <PackageReference> installedPackagesList = GetInstalledPackagesList();
var packageReference = installedPackagesList.Where(p => p.PackageIdentity.Equals(packageIdentity)).FirstOrDefault();
if (packageReference == null)
{
nuGetProjectContext.Log(MessageLevel.Warning, Strings.PackageDoesNotExisttInPackagesConfig, packageIdentity, Path.GetFileName(FullPath));
return(Task.FromResult(false));
}
installedPackagesList.Remove(packageReference);
if (installedPackagesList.Count > 0)
{
// Create new file or overwrite existing file
using (var stream = FileSystemUtility.CreateFile(FullPath, nuGetProjectContext))
{
var writer = new PackagesConfigWriter(stream);
foreach (var pr in installedPackagesList)
{
writer.WritePackageEntry(pr);
}
writer.Close();
}
}
else
{
FileSystemUtility.DeleteFile(FullPath, nuGetProjectContext);
}
nuGetProjectContext.Log(MessageLevel.Info, Strings.RemovedPackageFromPackagesConfig, packageIdentity, Path.GetFileName(FullPath));
return(Task.FromResult(true));
}
private void UpdatePackagesConfig(Project project, string packageName, string packageVersion)
{
var packagesFilePath = Path.Combine(project.DirectoryPath, "packages.config");
IEnumerable <PackageReference> entries = new List <PackageReference>();
if (File.Exists(packagesFilePath))
{
using (var stream = new FileStream(packagesFilePath, FileMode.OpenOrCreate, FileAccess.Read))
{
var reader = new PackagesConfigReader(stream, true);
entries = reader.GetPackages();
stream.Close();
}
}
File.Delete(packagesFilePath);
using (var stream = new FileStream(packagesFilePath, FileMode.Create, FileAccess.Write))
{
using (var writer = new PackagesConfigWriter(stream))
{
entries.ToList().ForEach(writer.WritePackageEntry);
try
{
writer.WritePackageEntry(packageName, NuGetVersion.Parse(packageVersion), NuGetFramework.AnyFramework);
}
catch (PackagingException)
{
_traceWriter.Output("packages.config already contains references");
}
writer.Close();
}
stream.Close();
}
}
