public async override Task <bool> UninstallPackageAsync(PackageIdentity packageIdentity, INuGetProjectContext nuGetProjectContext, CancellationToken token)
{
if (packageIdentity == null)
{
throw new ArgumentNullException("packageIdentity");
}
if (nuGetProjectContext == null)
{
throw new ArgumentNullException("nuGetProjectContext");
}
// Step-1: Check if the package already exists after setting the nuGetProjectContext
MSBuildNuGetProjectSystem.SetNuGetProjectContext(nuGetProjectContext);
var packageReference = (await GetInstalledPackagesAsync(token)).Where(
p => p.PackageIdentity.Equals(packageIdentity)).FirstOrDefault();
if (packageReference == null)
{
nuGetProjectContext.Log(MessageLevel.Warning, Strings.PackageDoesNotExistInProject,
packageIdentity, MSBuildNuGetProjectSystem.ProjectName);
return(false);
}
var packageTargetFramework = packageReference.TargetFramework ?? NuGetFramework.UnsupportedFramework;
var packageEventArgs = new PackageEventArgs(FolderNuGetProject, packageIdentity, FolderNuGetProject.GetInstalledPath(packageIdentity));
using (var packageStream = File.OpenRead(FolderNuGetProject.GetInstalledPackageFilePath(packageIdentity)))
{
// Step-2: Create PackageReader using the PackageStream and obtain the various item groups
// Get the package target framework instead of using project targetframework
var zipArchive = new ZipArchive(packageStream);
var packageReader = new PackageReader(zipArchive);
IEnumerable <FrameworkSpecificGroup> referenceItemGroups = packageReader.GetReferenceItems();
IEnumerable <FrameworkSpecificGroup> frameworkReferenceGroups = packageReader.GetFrameworkItems();
IEnumerable <FrameworkSpecificGroup> contentFileGroups = packageReader.GetContentItems();
IEnumerable <FrameworkSpecificGroup> buildFileGroups = packageReader.GetBuildItems();
// Step-3: Get the most compatible items groups for all items groups
FrameworkSpecificGroup compatibleReferenceItemsGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(packageTargetFramework, referenceItemGroups);
FrameworkSpecificGroup compatibleFrameworkReferencesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(packageTargetFramework, frameworkReferenceGroups);
FrameworkSpecificGroup compatibleContentFilesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(packageTargetFramework, contentFileGroups);
FrameworkSpecificGroup compatibleBuildFilesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(packageTargetFramework, buildFileGroups);
// TODO: Need to handle References element??
// Step-4: Raise PackageUninstalling event
if (PackageUninstalling != null)
{
PackageUninstalling(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyUninstalling(packageEventArgs);
// Step-5: Uninstall package from packages.config
await PackagesConfigNuGetProject.UninstallPackageAsync(packageIdentity, nuGetProjectContext, token);
// Step-6: Remove packages.config from MSBuildNuGetProject if there are no packages
// OR Add it again (to ensure that Source Control works), when there are some packages
if (!(await PackagesConfigNuGetProject.GetInstalledPackagesAsync(token)).Any())
{
MSBuildNuGetProjectSystem.RemoveFile(Path.GetFileName(PackagesConfigNuGetProject.FullPath));
}
else
{
MSBuildNuGetProjectSystem.AddExistingFile(Path.GetFileName(PackagesConfigNuGetProject.FullPath));
}
// Step-7: Uninstall package from the msbuild project
// Step-7.1: Remove references
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleReferenceItemsGroup))
{
foreach (var item in compatibleReferenceItemsGroup.Items)
{
if (IsAssemblyReference(item))
{
MSBuildNuGetProjectSystem.RemoveReference(Path.GetFileName(item));
}
}
}
// Step-7.2: Framework references are never removed. This is a no-op
// Step-7.3: Remove content files
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleContentFilesGroup))
{
MSBuildNuGetProjectSystemUtility.DeleteFiles(MSBuildNuGetProjectSystem,
zipArchive,
(await GetInstalledPackagesAsync(token)).Select(pr => FolderNuGetProject.GetInstalledPackageFilePath(pr.PackageIdentity)),
compatibleContentFilesGroup,
FileTransformers);
}
// Step-7.4: Remove build imports
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleBuildFilesGroup))
{
foreach (var buildImportFile in compatibleBuildFilesGroup.Items)
{
string fullImportFilePath = Path.Combine(FolderNuGetProject.GetInstalledPath(packageIdentity), buildImportFile);
MSBuildNuGetProjectSystem.RemoveImport(fullImportFilePath);
}
}
// Step-7.5: Remove binding redirects. This is a no-op
// Step-8: Raise PackageReferenceRemoved event
if (PackageReferenceRemoved != null)
{
PackageReferenceRemoved(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyReferenceRemoved(packageEventArgs);
// Step-9: Execute powershell script - uninstall.ps1
IEnumerable <FrameworkSpecificGroup> toolItemGroups = packageReader.GetToolItems();
FrameworkSpecificGroup compatibleToolItemsGroup = MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework,
toolItemGroups);
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleToolItemsGroup))
{
string uninstallPS1RelativePath = compatibleToolItemsGroup.Items.Where(p =>
p.EndsWith(Path.DirectorySeparatorChar + PowerShellScripts.Uninstall)).FirstOrDefault();
if (!String.IsNullOrEmpty(uninstallPS1RelativePath))
{
string packageInstallPath = FolderNuGetProject.GetInstalledPath(packageIdentity);
await MSBuildNuGetProjectSystem.ExecuteScriptAsync(packageInstallPath, uninstallPS1RelativePath, zipArchive, this);
}
}
}
// Step-10: Uninstall package from the folderNuGetProject
await FolderNuGetProject.UninstallPackageAsync(packageIdentity, nuGetProjectContext, token);
// Step-11: Raise PackageUninstalled event
if (PackageUninstalled != null)
{
PackageUninstalled(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyUninstalled(packageEventArgs);
return(true);
}
public async override Task <bool> InstallPackageAsync(PackageIdentity packageIdentity, Stream packageStream,
INuGetProjectContext nuGetProjectContext, CancellationToken token)
{
if (packageIdentity == null)
{
throw new ArgumentNullException("packageIdentity");
}
if (packageStream == null)
{
throw new ArgumentNullException("packageStream");
}
if (nuGetProjectContext == null)
{
throw new ArgumentNullException("nuGetProjectContext");
}
if (!packageStream.CanSeek)
{
throw new ArgumentException(Strings.PackageStreamShouldBeSeekable);
}
// Step-1: Check if the package already exists after setting the nuGetProjectContext
MSBuildNuGetProjectSystem.SetNuGetProjectContext(nuGetProjectContext);
var packageReference = (await GetInstalledPackagesAsync(token)).Where(
p => p.PackageIdentity.Equals(packageIdentity)).FirstOrDefault();
if (packageReference != null)
{
nuGetProjectContext.Log(MessageLevel.Warning, Strings.PackageAlreadyExistsInProject,
packageIdentity, MSBuildNuGetProjectSystem.ProjectName);
return(false);
}
// Step-2: Create PackageReader using the PackageStream and obtain the various item groups
packageStream.Seek(0, SeekOrigin.Begin);
var zipArchive = new ZipArchive(packageStream);
PackageReader packageReader = new PackageReader(zipArchive);
IEnumerable <FrameworkSpecificGroup> referenceItemGroups = packageReader.GetReferenceItems();
IEnumerable <FrameworkSpecificGroup> frameworkReferenceGroups = packageReader.GetFrameworkItems();
IEnumerable <FrameworkSpecificGroup> contentFileGroups = packageReader.GetContentItems();
IEnumerable <FrameworkSpecificGroup> buildFileGroups = packageReader.GetBuildItems();
IEnumerable <FrameworkSpecificGroup> toolItemGroups = packageReader.GetToolItems();
// Step-3: Get the most compatible items groups for all items groups
bool hasCompatibleProjectLevelContent = false;
FrameworkSpecificGroup compatibleReferenceItemsGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, referenceItemGroups);
FrameworkSpecificGroup compatibleFrameworkReferencesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, frameworkReferenceGroups);
FrameworkSpecificGroup compatibleContentFilesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, contentFileGroups);
FrameworkSpecificGroup compatibleBuildFilesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, buildFileGroups);
FrameworkSpecificGroup compatibleToolItemsGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, toolItemGroups);
hasCompatibleProjectLevelContent = MSBuildNuGetProjectSystemUtility.IsValid(compatibleReferenceItemsGroup) ||
MSBuildNuGetProjectSystemUtility.IsValid(compatibleFrameworkReferencesGroup) ||
MSBuildNuGetProjectSystemUtility.IsValid(compatibleContentFilesGroup) ||
MSBuildNuGetProjectSystemUtility.IsValid(compatibleBuildFilesGroup);
// Check if package has any content for project
bool hasProjectLevelContent = referenceItemGroups.Any() || frameworkReferenceGroups.Any() ||
contentFileGroups.Any() || buildFileGroups.Any();
bool onlyHasCompatibleTools = false;
bool onlyHasDependencies = false;
if (!hasProjectLevelContent)
{
// Since it does not have project-level content, check if it has dependencies or compatible tools
// Note that we are not checking if it has compatible project level content, but, just that it has project level content
// If the package has project-level content, but nothing compatible, we still need to throw
// If a package does not have any project-level content, it can be a
// Legacy solution level packages which only has compatible tools group
onlyHasCompatibleTools = MSBuildNuGetProjectSystemUtility.IsValid(compatibleToolItemsGroup) && compatibleToolItemsGroup.Items.Any();
if (!onlyHasCompatibleTools)
{
// If it does not have compatible tool items either, check if it at least has dependencies
onlyHasDependencies = packageReader.GetPackageDependencies().Any();
}
}
else
{
string shortFramework = MSBuildNuGetProjectSystem.TargetFramework.GetShortFolderName();
nuGetProjectContext.Log(MessageLevel.Debug, Strings.Debug_TargetFrameworkInfoPrefix, packageIdentity,
this.GetMetadata <string>(NuGetProjectMetadataKeys.Name), shortFramework);
}
// Step-4: Check if there are any compatible items in the package or that this is not a package with only tools group. If not, throw
if (!hasCompatibleProjectLevelContent && !onlyHasCompatibleTools && !onlyHasDependencies)
{
throw new InvalidOperationException(
String.Format(CultureInfo.CurrentCulture,
Strings.UnableToFindCompatibleItems, packageIdentity, MSBuildNuGetProjectSystem.TargetFramework));
}
if (hasCompatibleProjectLevelContent)
{
string shortFramework = MSBuildNuGetProjectSystem.TargetFramework.GetShortFolderName();
nuGetProjectContext.Log(MessageLevel.Debug, Strings.Debug_TargetFrameworkInfoPrefix, packageIdentity,
this.GetMetadata <string>(NuGetProjectMetadataKeys.Name), shortFramework);
}
else if (onlyHasCompatibleTools)
{
nuGetProjectContext.Log(MessageLevel.Info, Strings.AddingPackageWithOnlyToolsGroup, packageIdentity,
this.GetMetadata <string>(NuGetProjectMetadataKeys.Name));
}
else if (onlyHasDependencies)
{
nuGetProjectContext.Log(MessageLevel.Info, Strings.AddingPackageWithOnlyDependencies, packageIdentity,
this.GetMetadata <string>(NuGetProjectMetadataKeys.Name));
}
// Step-5: Raise PackageInstalling event
// At this point, GetInstalledPath is pointless since the package is, likely, not already installed. It will be empty
// Using PackagePathResolver.GetInstallPath would be wrong, since, package version from the nuspec is always used
var packageEventArgs = new PackageEventArgs(FolderNuGetProject, packageIdentity, FolderNuGetProject.GetInstalledPath(packageIdentity));
if (PackageInstalling != null)
{
PackageInstalling(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyInstalling(packageEventArgs);
// Step-6: Install package to FolderNuGetProject
await FolderNuGetProject.InstallPackageAsync(packageIdentity, packageStream, nuGetProjectContext, token);
// Step-7: Raise PackageInstalled event
// Call GetInstalledPath again, to get the package installed path
packageEventArgs = new PackageEventArgs(FolderNuGetProject, packageIdentity, FolderNuGetProject.GetInstalledPath(packageIdentity));
if (PackageInstalled != null)
{
PackageInstalled(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyInstalled(packageEventArgs);
// Step-8: MSBuildNuGetProjectSystem operations
// Step-8.1: Add references to project
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleReferenceItemsGroup) && !IsSkipAssemblyReferences(nuGetProjectContext))
{
foreach (var referenceItem in compatibleReferenceItemsGroup.Items)
{
if (IsAssemblyReference(referenceItem))
{
var referenceItemFullPath = Path.Combine(FolderNuGetProject.GetInstalledPath(packageIdentity), referenceItem);
var referenceName = Path.GetFileName(referenceItem);
if (MSBuildNuGetProjectSystem.ReferenceExists(referenceName))
{
MSBuildNuGetProjectSystem.RemoveReference(referenceName);
}
MSBuildNuGetProjectSystem.AddReference(referenceItemFullPath);
}
}
}
// Step-8.2: Add Frameworkreferences to project
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleFrameworkReferencesGroup))
{
foreach (var frameworkReference in compatibleFrameworkReferencesGroup.Items)
{
var frameworkReferenceName = Path.GetFileName(frameworkReference);
if (!MSBuildNuGetProjectSystem.ReferenceExists(frameworkReference))
{
MSBuildNuGetProjectSystem.AddFrameworkReference(frameworkReference);
}
}
}
// Step-8.3: Add Content Files
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleContentFilesGroup))
{
MSBuildNuGetProjectSystemUtility.AddFiles(MSBuildNuGetProjectSystem,
zipArchive, compatibleContentFilesGroup, FileTransformers);
}
// Step-8.4: Add Build imports
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleBuildFilesGroup))
{
foreach (var buildImportFile in compatibleBuildFilesGroup.Items)
{
string fullImportFilePath = Path.Combine(FolderNuGetProject.GetInstalledPath(packageIdentity), buildImportFile);
MSBuildNuGetProjectSystem.AddImport(fullImportFilePath,
fullImportFilePath.EndsWith(".props", StringComparison.OrdinalIgnoreCase) ? ImportLocation.Top : ImportLocation.Bottom);
}
}
// Step-9: Install package to PackagesConfigNuGetProject
await PackagesConfigNuGetProject.InstallPackageAsync(packageIdentity, packageStream, nuGetProjectContext, token);
// Step-10: Add packages.config to MSBuildNuGetProject
MSBuildNuGetProjectSystem.AddExistingFile(Path.GetFileName(PackagesConfigNuGetProject.FullPath));
// Step 11: Raise PackageReferenceAdded event
if (PackageReferenceAdded != null)
{
PackageReferenceAdded(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyReferenceAdded(packageEventArgs);
// Step-12: Execute powershell script - install.ps1
string packageInstallPath = FolderNuGetProject.GetInstalledPath(packageIdentity);
FrameworkSpecificGroup anyFrameworkToolsGroup = toolItemGroups.Where(g => g.TargetFramework.Equals(NuGetFramework.AnyFramework)).FirstOrDefault();
if (anyFrameworkToolsGroup != null)
{
string initPS1RelativePath = anyFrameworkToolsGroup.Items.Where(p =>
p.StartsWith(PowerShellScripts.InitPS1RelativePath)).FirstOrDefault();
if (!String.IsNullOrEmpty(initPS1RelativePath))
{
initPS1RelativePath = PathUtility.ReplaceAltDirSeparatorWithDirSeparator(initPS1RelativePath);
await MSBuildNuGetProjectSystem.ExecuteScriptAsync(packageInstallPath, initPS1RelativePath, zipArchive, this);
}
}
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleToolItemsGroup))
{
string installPS1RelativePath = compatibleToolItemsGroup.Items.Where(p =>
p.EndsWith(Path.DirectorySeparatorChar + PowerShellScripts.Install)).FirstOrDefault();
if (!String.IsNullOrEmpty(installPS1RelativePath))
{
await MSBuildNuGetProjectSystem.ExecuteScriptAsync(packageInstallPath, installPS1RelativePath, zipArchive, this);
}
}
return(true);
}