public void PackagesConfigWriter_UpdateError()
{
// Arrange
var stream = new MemoryStream();
// Act
using (var writer = new PackagesConfigWriter(stream, true))
{
var packageIdentityA = new PackageIdentity("packageA", NuGetVersion.Parse("1.0.1"));
var packageReferenceA = new PackageReference(packageIdentityA, NuGetFramework.Parse("net45"));
writer.AddPackageEntry(packageReferenceA);
var packageIdentityB = new PackageIdentity("packageB", NuGetVersion.Parse("2.0.0"));
var packageReferenceB = new PackageReference(packageIdentityB, NuGetFramework.Parse("portable-net45+win8"));
var packageIdentityC = new PackageIdentity("packageC", NuGetVersion.Parse("1.0.1"));
var packageReferenceC = new PackageReference(packageIdentityC, NuGetFramework.Parse("net45"));
// Assert
Assert.Throws <PackagesConfigWriterException>(() => writer.UpdatePackageEntry(packageReferenceB, packageReferenceC));
}
}
public override async Task <bool> InstallPackageAsync(
PackageIdentity packageIdentity,
DownloadResourceResult downloadResourceResult,
INuGetProjectContext nuGetProjectContext,
CancellationToken token)
{
if (packageIdentity == null)
{
throw new ArgumentNullException("packageIdentity");
}
if (nuGetProjectContext == null)
{
throw new ArgumentNullException("nuGetProjectContext");
}
var isDevelopmentDependency = await CheckDevelopmentDependencyAsync(downloadResourceResult, token);
var newPackageReference = new PackageReference(
packageIdentity,
TargetFramework,
userInstalled: true,
developmentDependency: isDevelopmentDependency,
requireReinstallation: false);
var installedPackagesList = GetInstalledPackagesList();
try
{
// Avoid modifying the packages.config file while it is being read
// This can happen when VS API calls are made to get the list of
// all installed packages.
lock (_configLock)
{
// Packages.config exist at full path
if (installedPackagesList.Any())
{
var packageReferenceWithSameId = installedPackagesList.FirstOrDefault(
p => p.PackageIdentity.Id.Equals(packageIdentity.Id, StringComparison.OrdinalIgnoreCase));
if (packageReferenceWithSameId != null)
{
if (packageReferenceWithSameId.PackageIdentity.Equals(packageIdentity))
{
nuGetProjectContext.Log(MessageLevel.Warning, Strings.PackageAlreadyExistsInPackagesConfig, packageIdentity, Path.GetFileName(FullPath));
return(false);
}
// Higher version of an installed package is being installed. Remove old and add new
using (var writer = new PackagesConfigWriter(FullPath, createNew: false))
{
writer.UpdatePackageEntry(packageReferenceWithSameId, newPackageReference);
}
}
else
{
using (var writer = new PackagesConfigWriter(FullPath, createNew: false))
{
if (nuGetProjectContext.OriginalPackagesConfig == null)
{
// Write a new entry
writer.AddPackageEntry(newPackageReference);
}
else
{
// Update the entry based on the original entry if it exists
writer.UpdateOrAddPackageEntry(nuGetProjectContext.OriginalPackagesConfig, newPackageReference);
}
}
}
}
// Create new packages.config file and add the package entry
else
{
using (var writer = new PackagesConfigWriter(FullPath, createNew: true))
{
if (nuGetProjectContext.OriginalPackagesConfig == null)
{
// Write a new entry
writer.AddPackageEntry(newPackageReference);
}
else
{
// Update the entry based on the original entry if it exists
writer.UpdateOrAddPackageEntry(nuGetProjectContext.OriginalPackagesConfig, newPackageReference);
}
}
}
}
}
catch (PackagesConfigWriterException ex)
{
throw new InvalidOperationException(string.Format(
CultureInfo.CurrentCulture,
Strings.ErrorWritingPackagesConfig,
FullPath,
ex.Message));
}
nuGetProjectContext.Log(MessageLevel.Info, Strings.AddedPackageToPackagesConfig, packageIdentity, Path.GetFileName(FullPath));
return(true);
}
