public override async Task <bool> InstallPackageAsync(
PackageIdentity packageIdentity,
DownloadResourceResult downloadResourceResult,
INuGetProjectContext nuGetProjectContext,
CancellationToken token)
{
if (packageIdentity == null)
{
throw new ArgumentNullException(nameof(packageIdentity));
}
if (downloadResourceResult == null)
{
throw new ArgumentNullException(nameof(downloadResourceResult));
}
if (nuGetProjectContext == null)
{
throw new ArgumentNullException(nameof(nuGetProjectContext));
}
if (!downloadResourceResult.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))
.FirstOrDefault(p => p.PackageIdentity.Equals(packageIdentity));
if (packageReference != null)
{
nuGetProjectContext.Log(MessageLevel.Warning, Strings.PackageAlreadyExistsInProject,
packageIdentity, MSBuildNuGetProjectSystem.ProjectName);
return(false);
}
// Step-2: Create PackageArchiveReader using the PackageStream and obtain the various item groups
downloadResourceResult.PackageStream.Seek(0, SeekOrigin.Begin);
var packageReader = downloadResourceResult.PackageReader ?? new PackageArchiveReader(downloadResourceResult.PackageStream, leaveStreamOpen: true);
var libItemGroups = packageReader.GetLibItems();
var referenceItemGroups = packageReader.GetReferenceItems();
var frameworkReferenceGroups = packageReader.GetFrameworkItems();
var contentFileGroups = packageReader.GetContentItems();
var buildFileGroups = packageReader.GetBuildItems();
var toolItemGroups = packageReader.GetToolItems();
// Step-3: Get the most compatible items groups for all items groups
var hasCompatibleProjectLevelContent = false;
var compatibleLibItemsGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, libItemGroups);
var compatibleReferenceItemsGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, referenceItemGroups);
var compatibleFrameworkReferencesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, frameworkReferenceGroups);
var compatibleContentFilesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, contentFileGroups);
var compatibleBuildFilesGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, buildFileGroups);
var compatibleToolItemsGroup =
MSBuildNuGetProjectSystemUtility.GetMostCompatibleGroup(MSBuildNuGetProjectSystem.TargetFramework, toolItemGroups);
compatibleLibItemsGroup
= MSBuildNuGetProjectSystemUtility.Normalize(compatibleLibItemsGroup);
compatibleReferenceItemsGroup
= MSBuildNuGetProjectSystemUtility.Normalize(compatibleReferenceItemsGroup);
compatibleFrameworkReferencesGroup
= MSBuildNuGetProjectSystemUtility.Normalize(compatibleFrameworkReferencesGroup);
compatibleContentFilesGroup
= MSBuildNuGetProjectSystemUtility.Normalize(compatibleContentFilesGroup);
compatibleBuildFilesGroup
= MSBuildNuGetProjectSystemUtility.Normalize(compatibleBuildFilesGroup);
compatibleToolItemsGroup
= MSBuildNuGetProjectSystemUtility.Normalize(compatibleToolItemsGroup);
hasCompatibleProjectLevelContent = MSBuildNuGetProjectSystemUtility.IsValid(compatibleLibItemsGroup) ||
MSBuildNuGetProjectSystemUtility.IsValid(compatibleFrameworkReferencesGroup) ||
MSBuildNuGetProjectSystemUtility.IsValid(compatibleContentFilesGroup) ||
MSBuildNuGetProjectSystemUtility.IsValid(compatibleBuildFilesGroup);
// Check if package has any content for project
var hasProjectLevelContent = libItemGroups.Any() || frameworkReferenceGroups.Any() ||
contentFileGroups.Any() || buildFileGroups.Any();
var onlyHasCompatibleTools = false;
var 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
{
var shortFramework = MSBuildNuGetProjectSystem.TargetFramework.GetShortFolderName();
nuGetProjectContext.Log(MessageLevel.Debug, Strings.Debug_TargetFrameworkInfoPrefix, packageIdentity,
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.Id + " " + packageIdentity.Version.ToNormalizedString(), MSBuildNuGetProjectSystem.TargetFramework));
}
if (hasCompatibleProjectLevelContent)
{
var shortFramework = MSBuildNuGetProjectSystem.TargetFramework.GetShortFolderName();
nuGetProjectContext.Log(MessageLevel.Debug, Strings.Debug_TargetFrameworkInfoPrefix, packageIdentity,
GetMetadata <string>(NuGetProjectMetadataKeys.Name), shortFramework);
}
else if (onlyHasCompatibleTools)
{
nuGetProjectContext.Log(MessageLevel.Info, Strings.AddingPackageWithOnlyToolsGroup, packageIdentity,
GetMetadata <string>(NuGetProjectMetadataKeys.Name));
}
else if (onlyHasDependencies)
{
nuGetProjectContext.Log(MessageLevel.Info, Strings.AddingPackageWithOnlyDependencies, packageIdentity,
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, installPath: string.Empty);
if (PackageInstalling != null)
{
PackageInstalling(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyInstalling(packageEventArgs);
// Step-6: Install package to FolderNuGetProject
await FolderNuGetProject.InstallPackageAsync(packageIdentity, downloadResourceResult, nuGetProjectContext, token);
// Step-7: Raise PackageInstalled event
// Call GetInstalledPath to get the package installed path
var packageInstallPath = FolderNuGetProject.GetInstalledPath(packageIdentity);
packageEventArgs = new PackageEventArgs(FolderNuGetProject, packageIdentity, packageInstallPath);
if (PackageInstalled != null)
{
PackageInstalled(this, packageEventArgs);
}
PackageEventsProvider.Instance.NotifyInstalled(packageEventArgs);
// Step-8: MSBuildNuGetProjectSystem operations
// Step-8.1: Add references to project
if (!IsSkipAssemblyReferences(nuGetProjectContext) &&
MSBuildNuGetProjectSystemUtility.IsValid(compatibleReferenceItemsGroup))
{
foreach (var referenceItem in compatibleReferenceItemsGroup.Items)
{
if (IsAssemblyReference(referenceItem))
{
var referenceItemFullPath = Path.Combine(packageInstallPath, referenceItem);
var referenceName = Path.GetFileName(referenceItem);
if (MSBuildNuGetProjectSystem.ReferenceExists(referenceName))
{
MSBuildNuGetProjectSystem.RemoveReference(referenceName);
}
MSBuildNuGetProjectSystem.AddReference(referenceItemFullPath);
}
}
}
// Step-8.2: Add Frameworkreferences to project
if (!IsSkipAssemblyReferences(nuGetProjectContext) &&
MSBuildNuGetProjectSystemUtility.IsValid(compatibleFrameworkReferencesGroup))
{
foreach (var frameworkReference in compatibleFrameworkReferencesGroup.Items)
{
if (!MSBuildNuGetProjectSystem.ReferenceExists(frameworkReference))
{
MSBuildNuGetProjectSystem.AddFrameworkReference(frameworkReference, packageIdentity.Id);
}
}
}
// Step-8.3: Add Content Files
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleContentFilesGroup))
{
MSBuildNuGetProjectSystemUtility.AddFiles(MSBuildNuGetProjectSystem,
packageReader, compatibleContentFilesGroup, FileTransformers);
}
// Step-8.4: Add Build imports
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleBuildFilesGroup))
{
foreach (var buildImportFile in compatibleBuildFilesGroup.Items)
{
var fullImportFilePath = Path.Combine(packageInstallPath, buildImportFile);
MSBuildNuGetProjectSystem.AddImport(fullImportFilePath,
fullImportFilePath.EndsWith(".props", StringComparison.OrdinalIgnoreCase) ? ImportLocation.Top : ImportLocation.Bottom);
}
}
// Step-9: Install package to PackagesConfigNuGetProject
await PackagesConfigNuGetProject.InstallPackageAsync(packageIdentity, downloadResourceResult, nuGetProjectContext, token);
// Step-10: Add packages.config to MSBuildNuGetProject
MSBuildNuGetProjectSystem.AddExistingFile(Path.GetFileName(PackagesConfigNuGetProject.FullPath));
// Step 11: Raise PackageReferenceAdded event
PackageReferenceAdded?.Invoke(this, packageEventArgs);
PackageEventsProvider.Instance.NotifyReferenceAdded(packageEventArgs);
// Step-12: Execute powershell script - install.ps1
var anyFrameworkToolsGroup = toolItemGroups.FirstOrDefault(g => g.TargetFramework.Equals(NuGetFramework.AnyFramework));
if (anyFrameworkToolsGroup != null)
{
var initPS1RelativePath = anyFrameworkToolsGroup.Items.Where(p =>
p.StartsWith(PowerShellScripts.InitPS1RelativePath, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
if (!string.IsNullOrEmpty(initPS1RelativePath))
{
initPS1RelativePath = PathUtility.ReplaceAltDirSeparatorWithDirSeparator(initPS1RelativePath);
await MSBuildNuGetProjectSystem.ExecuteScriptAsync(packageIdentity, packageInstallPath, initPS1RelativePath, this, throwOnFailure : true);
}
}
if (MSBuildNuGetProjectSystemUtility.IsValid(compatibleToolItemsGroup))
{
var installPS1RelativePath = compatibleToolItemsGroup.Items.FirstOrDefault(
p => p.EndsWith(Path.DirectorySeparatorChar + PowerShellScripts.Install, StringComparison.OrdinalIgnoreCase));
if (!string.IsNullOrEmpty(installPS1RelativePath))
{
await MSBuildNuGetProjectSystem.ExecuteScriptAsync(packageIdentity, packageInstallPath, installPS1RelativePath, this, throwOnFailure : true);
}
}
return(true);
}
internal static void AddFiles(IMSBuildNuGetProjectSystem msBuildNuGetProjectSystem,
ZipArchive zipArchive,
FrameworkSpecificGroup frameworkSpecificGroup,
IDictionary <FileTransformExtensions, IPackageFileTransformer> fileTransformers)
{
var packageTargetFramework = frameworkSpecificGroup.TargetFramework;
// Content files are maintained with AltDirectorySeparatorChar
List <string> packageItemListAsArchiveEntryNames = frameworkSpecificGroup.Items.Select(i => PathUtility.ReplaceDirSeparatorWithAltDirSeparator(i)).ToList();
packageItemListAsArchiveEntryNames.Sort(new PackageItemComparer());
try
{
var zipArchiveEntryList = packageItemListAsArchiveEntryNames.Select(i => zipArchive.GetEntry(i)).Where(i => i != null).ToList();
try
{
var paths = zipArchiveEntryList.Select(file => ResolvePath(fileTransformers, fte => fte.InstallExtension,
GetEffectivePathForContentFile(packageTargetFramework, file.FullName)));
paths = paths.Where(p => !String.IsNullOrEmpty(p));
msBuildNuGetProjectSystem.BeginProcessing(paths);
}
catch (Exception)
{
// Ignore all exceptions for now
}
foreach (ZipArchiveEntry zipArchiveEntry in zipArchiveEntryList)
{
if (zipArchiveEntry == null)
{
throw new ArgumentNullException("zipArchiveEntry");
}
if (IsEmptyFolder(zipArchiveEntry.FullName))
{
continue;
}
var effectivePathForContentFile = GetEffectivePathForContentFile(packageTargetFramework, zipArchiveEntry.FullName);
// Resolve the target path
IPackageFileTransformer installTransformer;
string path = ResolveTargetPath(msBuildNuGetProjectSystem,
fileTransformers,
fte => fte.InstallExtension, effectivePathForContentFile, out installTransformer);
if (msBuildNuGetProjectSystem.IsSupportedFile(path))
{
if (installTransformer != null)
{
installTransformer.TransformFile(zipArchiveEntry, path, msBuildNuGetProjectSystem);
}
else
{
// Ignore uninstall transform file during installation
string truncatedPath;
IPackageFileTransformer uninstallTransformer =
FindFileTransformer(fileTransformers, fte => fte.UninstallExtension, effectivePathForContentFile, out truncatedPath);
if (uninstallTransformer != null)
{
continue;
}
TryAddFile(msBuildNuGetProjectSystem, path, zipArchiveEntry.Open);
}
}
}
}
finally
{
msBuildNuGetProjectSystem.EndProcessing();
}
}
internal static void DeleteFiles(IMSBuildNuGetProjectSystem projectSystem,
ZipArchive zipArchive,
IEnumerable <string> otherPackagesPath,
FrameworkSpecificGroup frameworkSpecificGroup,
IDictionary <FileTransformExtensions, IPackageFileTransformer> fileTransformers)
{
var packageTargetFramework = frameworkSpecificGroup.TargetFramework;
IPackageFileTransformer transformer;
var directoryLookup = frameworkSpecificGroup.Items.ToLookup(
p => Path.GetDirectoryName(ResolveTargetPath(projectSystem,
fileTransformers,
fte => fte.UninstallExtension,
GetEffectivePathForContentFile(packageTargetFramework, p),
out transformer)));
// Get all directories that this package may have added
var directories = from grouping in directoryLookup
from directory in FileSystemUtility.GetDirectories(grouping.Key, altDirectorySeparator: false)
orderby directory.Length descending
select directory;
string projectFullPath = projectSystem.ProjectFullPath;
// Remove files from every directory
foreach (var directory in directories)
{
var directoryFiles = directoryLookup.Contains(directory)
? directoryLookup[directory]
: Enumerable.Empty <string>();
if (!Directory.Exists(Path.Combine(projectFullPath, directory)))
{
continue;
}
foreach (var file in directoryFiles)
{
if (IsEmptyFolder(file))
{
continue;
}
// Resolve the path
var path = ResolveTargetPath(projectSystem,
fileTransformers,
fte => fte.UninstallExtension,
GetEffectivePathForContentFile(packageTargetFramework, file),
out transformer);
if (projectSystem.IsSupportedFile(path))
{
// Register the file being uninstalled (used by web site project system).
projectSystem.RegisterProcessedFiles(new[] { path });
if (transformer != null)
{
// TODO: use the framework from packages.config instead of the current framework
// which may have changed during re-targeting
var projectFramework = projectSystem.TargetFramework;
var matchingFiles = new List <InternalZipFileInfo>();
foreach (var otherPackagePath in otherPackagesPath)
{
using (var otherPackageZipReader = new PackageArchiveReader(otherPackagePath))
{
// use the project framework to find the group that would have been installed
var mostCompatibleContentFilesGroup = GetMostCompatibleGroup(
projectFramework,
otherPackageZipReader.GetContentItems());
if (IsValid(mostCompatibleContentFilesGroup))
{
// Should not normalize content files group.
// It should be like a ZipFileEntry with a forward slash.
foreach (var otherPackageItem in mostCompatibleContentFilesGroup.Items)
{
if (GetEffectivePathForContentFile(packageTargetFramework,
otherPackageItem)
.Equals(
GetEffectivePathForContentFile(packageTargetFramework, file),
StringComparison.OrdinalIgnoreCase))
{
matchingFiles.Add(new InternalZipFileInfo(otherPackagePath,
otherPackageItem));
}
}
}
}
}
try
{
var zipArchiveFileEntry = PathUtility.GetEntry(zipArchive, file);
if (zipArchiveFileEntry != null)
{
transformer.RevertFile(zipArchiveFileEntry.Open, path, matchingFiles,
projectSystem);
}
}
catch (Exception e)
{
projectSystem.NuGetProjectContext.Log(MessageLevel.Warning, e.Message);
}
}
else
{
try
{
var zipArchiveFileEntry = PathUtility.GetEntry(zipArchive, file);
if (zipArchiveFileEntry != null)
{
DeleteFileSafe(path, zipArchiveFileEntry.Open, projectSystem);
}
}
catch (Exception e)
{
projectSystem.NuGetProjectContext.Log(MessageLevel.Warning, e.Message);
}
}
}
}
// If the directory is empty then delete it
if (!GetFilesSafe(projectSystem, directory).Any() &&
!GetDirectoriesSafe(projectSystem, directory).Any())
{
DeleteDirectorySafe(projectSystem, directory);
}
}
}
internal static FrameworkSpecificGroup GetMostCompatibleGroup(NuGetFramework projectTargetFramework, IEnumerable <FrameworkSpecificGroup> itemGroups,
bool altDirSeparator = false)
{
FrameworkReducer reducer = new FrameworkReducer();
NuGetFramework mostCompatibleFramework = reducer.GetNearest(projectTargetFramework, itemGroups.Select(i => i.TargetFramework));
if (mostCompatibleFramework != null)
{
IEnumerable <FrameworkSpecificGroup> mostCompatibleGroups = itemGroups.Where(i => i.TargetFramework.Equals(mostCompatibleFramework));
var mostCompatibleGroup = mostCompatibleGroups.SingleOrDefault();
if (IsValid(mostCompatibleGroup))
{
mostCompatibleGroup = new FrameworkSpecificGroup(mostCompatibleGroup.TargetFramework,
GetValidPackageItems(mostCompatibleGroup.Items).Select(item => altDirSeparator ? PathUtility.ReplaceDirSeparatorWithAltDirSeparator(item)
: PathUtility.ReplaceAltDirSeparatorWithDirSeparator(item)));
}
return(mostCompatibleGroup);
}
return(null);
}
