public LocalPackageSourceInfo(NuGetv3LocalRepository repository, LocalPackageInfo package)
{
if (repository == null)
{
throw new ArgumentNullException(nameof(repository));
}
if (package == null)
{
throw new ArgumentNullException(nameof(package));
}
Repository = repository;
Package = package;
}
public NuGetDependencyResolver(string packagesPath)
{
_repository = new NuGetv3LocalRepository(packagesPath, checkPackageIdCase: false);
}
public NuGetDependencyResolver(NuGetv3LocalRepository repository)
{
_repository = repository;
}
private Task<RestoreTargetGraph[]> WalkRuntimeDependencies(LibraryRange projectRange, RestoreTargetGraph graph, RuntimeGraph projectRuntimeGraph, RemoteDependencyWalker walker, RemoteWalkContext context, NuGetv3LocalRepository localRepository)
{
// Load runtime specs
_log.LogVerbose("Scanning packages for runtime.json files...");
var runtimeGraph = projectRuntimeGraph;
graph.Graph.ForEach(node =>
{
var match = node?.Item?.Data?.Match;
if (match == null)
{
return;
}
// Locate the package in the local repository
var package = localRepository.FindPackagesById(match.Library.Name).FirstOrDefault(p => p.Version == match.Library.Version);
if (package != null)
{
var nextGraph = LoadRuntimeGraph(package);
if (nextGraph != null)
{
_log.LogVerbose($"Merging in runtimes defined in {match.Library}");
runtimeGraph = RuntimeGraph.Merge(runtimeGraph, nextGraph);
}
}
});
var resultGraphs = new List<Task<RestoreTargetGraph>>();
foreach (var runtimeName in projectRuntimeGraph.Runtimes.Keys)
{
_log.LogInformation($"Restoring packages for {graph.Framework} on {runtimeName}");
resultGraphs.Add(WalkDependencies(projectRange, graph.Framework, runtimeName, runtimeGraph, walker, context));
}
return Task.WhenAll(resultGraphs);
}
public async Task<RestoreResult> ExecuteAsync(RestoreRequest request)
{
if (request.Project.TargetFrameworks.Count == 0)
{
_log.LogError("The project does not specify any target frameworks!");
return new RestoreResult(success: false, restoreGraphs: Enumerable.Empty<RestoreTargetGraph>());
}
var projectLockFilePath = string.IsNullOrEmpty(request.LockFilePath) ?
Path.Combine(request.Project.BaseDirectory, LockFileFormat.LockFileName) :
request.LockFilePath;
_log.LogInformation($"Restoring packages for '{request.Project.FilePath}'");
_log.LogWarning("TODO: Read and use lock file");
// Load repositories
var projectResolver = new PackageSpecResolver(request.Project);
var nugetRepository = Repository.Factory.GetCoreV3(request.PackagesDirectory);
var context = new RemoteWalkContext();
ExternalProjectReference exterenalProjectReference = null;
if (request.ExternalProjects.Any())
{
exterenalProjectReference = new ExternalProjectReference(
request.Project.Name,
request.Project.FilePath,
request.ExternalProjects.Select(p => p.Name));
}
context.ProjectLibraryProviders.Add(
new LocalDependencyProvider(
new PackageSpecReferenceDependencyProvider(projectResolver, exterenalProjectReference)));
if (request.ExternalProjects != null)
{
context.ProjectLibraryProviders.Add(
new LocalDependencyProvider(
new ExternalProjectReferenceDependencyProvider(request.ExternalProjects)));
}
context.LocalLibraryProviders.Add(
new SourceRepositoryDependencyProvider(nugetRepository, _log));
foreach (var provider in request.Sources.Select(s => CreateProviderFromSource(s, request.NoCache)))
{
context.RemoteLibraryProviders.Add(provider);
}
var remoteWalker = new RemoteDependencyWalker(context);
var projectRange = new LibraryRange()
{
Name = request.Project.Name,
VersionRange = new VersionRange(request.Project.Version),
TypeConstraint = LibraryTypes.Project
};
// Resolve dependency graphs
var frameworks = request.Project.TargetFrameworks.Select(f => f.FrameworkName).ToList();
var graphs = new List<RestoreTargetGraph>();
var frameworkTasks = new List<Task<RestoreTargetGraph>>();
foreach (var framework in frameworks)
{
frameworkTasks.Add(WalkDependencies(projectRange, framework, remoteWalker, context));
}
graphs.AddRange(await Task.WhenAll(frameworkTasks));
if (graphs.Any(g => g.InConflict))
{
_log.LogError("Failed to resolve conflicts");
return new RestoreResult(success: false, restoreGraphs: graphs);
}
// Install the runtime-agnostic packages
var allInstalledPackages = new HashSet<LibraryIdentity>();
var localRepository = new NuGetv3LocalRepository(request.PackagesDirectory, checkPackageIdCase: false);
await InstallPackages(graphs, request.PackagesDirectory, allInstalledPackages, request.MaxDegreeOfConcurrency);
// Resolve runtime dependencies
var runtimeGraphs = new List<RestoreTargetGraph>();
if (request.Project.RuntimeGraph.Runtimes.Count > 0)
{
var runtimeTasks = new List<Task<RestoreTargetGraph[]>>();
foreach (var graph in graphs)
{
runtimeTasks.Add(WalkRuntimeDependencies(projectRange, graph, request.Project.RuntimeGraph, remoteWalker, context, localRepository));
}
foreach (var runtimeSpecificGraphs in await Task.WhenAll(runtimeTasks))
{
runtimeGraphs.AddRange(runtimeSpecificGraphs);
}
graphs.AddRange(runtimeGraphs);
if (runtimeGraphs.Any(g => g.InConflict))
{
_log.LogError("Failed to resolve conflicts");
return new RestoreResult(success: false, restoreGraphs: graphs);
}
// Install runtime-specific packages
await InstallPackages(runtimeGraphs, request.PackagesDirectory, allInstalledPackages, request.MaxDegreeOfConcurrency);
}
else
{
_log.LogVerbose("Skipping runtime dependency walk, no runtimes defined in project.json");
}
// Build the lock file
var repository = new NuGetv3LocalRepository(request.PackagesDirectory, checkPackageIdCase: false);
var lockFile = CreateLockFile(request.Project, graphs, repository);
var lockFileFormat = new LockFileFormat();
lockFileFormat.Write(projectLockFilePath, lockFile);
// Generate Targets/Props files
WriteTargetsAndProps(request.Project, graphs, repository);
return new RestoreResult(true, graphs, lockFile);
}
private LockFile CreateLockFile(PackageSpec project, List<RestoreTargetGraph> targetGraphs, NuGetv3LocalRepository repository)
{
var lockFile = new LockFile();
using (var sha512 = SHA512.Create())
{
foreach (var item in targetGraphs.SelectMany(g => g.Flattened).Distinct().OrderBy(x => x.Data.Match.Library))
{
var library = item.Data.Match.Library;
var packageInfo = repository.FindPackagesById(library.Name)
.FirstOrDefault(p => p.Version == library.Version);
if (packageInfo == null)
{
continue;
}
var lockFileLib = CreateLockFileLibrary(
packageInfo,
sha512,
correctedPackageName: library.Name);
lockFile.Libraries.Add(lockFileLib);
}
}
// Use empty string as the key of dependencies shared by all frameworks
lockFile.ProjectFileDependencyGroups.Add(new ProjectFileDependencyGroup(
string.Empty,
project.Dependencies.Select(x => x.LibraryRange.ToString())));
foreach (var frameworkInfo in project.TargetFrameworks)
{
lockFile.ProjectFileDependencyGroups.Add(new ProjectFileDependencyGroup(
frameworkInfo.FrameworkName.ToString(),
frameworkInfo.Dependencies.Select(x => x.LibraryRange.ToString())));
}
// Add the targets
foreach (var targetGraph in targetGraphs)
{
var target = new LockFileTarget();
target.TargetFramework = targetGraph.Framework;
target.RuntimeIdentifier = targetGraph.RuntimeIdentifier;
foreach (var library in targetGraph.Flattened.Select(g => g.Key).OrderBy(x => x))
{
var packageInfo = repository.FindPackagesById(library.Name)
.FirstOrDefault(p => p.Version == library.Version);
if (packageInfo == null)
{
continue;
}
var targetLibrary = CreateLockFileTargetLibrary(
packageInfo,
targetGraph,
new DefaultPackagePathResolver(repository.RepositoryRoot),
correctedPackageName: library.Name);
target.Libraries.Add(targetLibrary);
}
lockFile.Targets.Add(target);
}
return lockFile;
}
private void GenerateImportsFile(NuGetv3LocalRepository repository, string path, List<string> imports)
{
var ns = XNamespace.Get("http://schemas.microsoft.com/developer/msbuild/2003");
var doc = new XDocument(
new XDeclaration("1.0", "utf-8", "no"),
new XElement(ns + "Project",
new XAttribute("ToolsVersion", "14.0"),
new XElement(ns + "PropertyGroup",
new XAttribute("Condition", "'$(NuGetPackageRoot)' == ''"),
new XElement(ns + "NuGetPackageRoot", repository.RepositoryRoot)),
new XElement(ns + "ImportGroup", imports.Select(i =>
new XElement(ns + "Import",
new XAttribute("Project", Path.Combine("$(NuGetPackageRoot)", i)),
new XAttribute("Condition", $"Exists('{Path.Combine("$(NuGetPackageRoot)", i)}')"))))));
using (var output = new FileStream(path, FileMode.Create, FileAccess.ReadWrite, FileShare.None))
{
doc.Save(output);
}
}
private void WriteTargetsAndProps(PackageSpec project, List<RestoreTargetGraph> targetGraphs, NuGetv3LocalRepository repository)
{
// Get the runtime-independent graphs
var tfmGraphs = targetGraphs.Where(g => string.IsNullOrEmpty(g.RuntimeIdentifier)).ToList();
if (tfmGraphs.Count > 1)
{
var name = $"{project.Name}.nuget.targets";
var path = Path.Combine(project.BaseDirectory, name);
_log.LogInformation($"Generating MSBuild file {name}");
GenerateMSBuildErrorFile(path);
return;
}
var graph = tfmGraphs[0];
var pathResolver = new DefaultPackagePathResolver(repository.RepositoryRoot);
var targets = new List<string>();
var props = new List<string>();
foreach (var library in graph.Flattened.Distinct().OrderBy(g => g.Data.Match.Library))
{
var package = repository.FindPackagesById(library.Key.Name).FirstOrDefault(p => p.Version == library.Key.Version);
if (package != null)
{
var criteria = graph.Conventions.Criteria.ForFramework(graph.Framework);
var contentItemCollection = new ContentItemCollection();
using (var nupkgStream = File.OpenRead(package.ZipPath))
{
var reader = new PackageReader(nupkgStream);
contentItemCollection.Load(reader.GetFiles());
}
// Find MSBuild thingies
var buildItems = contentItemCollection.FindBestItemGroup(criteria, graph.Conventions.Patterns.MSBuildFiles);
if (buildItems != null)
{
// We need to additionally filter to items that are named "{packageId}.targets" and "{packageId}.props"
// Filter by file name here and we'll filter by extension when we add things to the lists.
var items = buildItems.Items
.Where(item => Path.GetFileNameWithoutExtension(item.Path).Equals(package.Id, StringComparison.OrdinalIgnoreCase))
.ToList();
targets.AddRange(items
.Select(c => c.Path)
.Where(path => Path.GetExtension(path).Equals(".targets", StringComparison.OrdinalIgnoreCase))
.Select(path => Path.Combine(pathResolver.GetPackageDirectory(package.Id, package.Version), path.Replace('/', Path.DirectorySeparatorChar))));
props.AddRange(items
.Select(c => c.Path)
.Where(path => Path.GetExtension(path).Equals(".props", StringComparison.OrdinalIgnoreCase))
.Select(path => Path.Combine(pathResolver.GetPackageDirectory(package.Id, package.Version), path.Replace('/', Path.DirectorySeparatorChar))));
}
}
}
// Generate the files as needed
var targetsName = $"{project.Name}.nuget.targets";
var propsName = $"{project.Name}.nuget.props";
var targetsPath = Path.Combine(project.BaseDirectory, targetsName);
var propsPath = Path.Combine(project.BaseDirectory, propsName);
if (targets.Any())
{
_log.LogInformation($"Generating MSBuild file {targetsName}");
GenerateImportsFile(repository, targetsPath, targets);
}
else if (File.Exists(targetsPath))
{
File.Delete(targetsPath);
}
if (props.Any())
{
_log.LogInformation($"Generating MSBuild file {propsName}");
GenerateImportsFile(repository, propsPath, props);
}
else if (File.Exists(propsPath))
{
File.Delete(propsPath);
}
}
