private IReadOnlyList <RestoreSummaryRequest> GetRequestsFromItems(RestoreArgs restoreContext, DependencyGraphSpec dgFile)
{
if (restoreContext == null)
{
throw new ArgumentNullException(nameof(restoreContext));
}
if (dgFile == null)
{
throw new ArgumentNullException(nameof(dgFile));
}
// Write the dg file to disk of the NUGET_PERSIST_DG is set.
MSBuildRestoreUtility.PersistDGFileIfDebugging(dgFile, restoreContext.Log);
// Validate the dg file input, this throws if errors are found.
SpecValidationUtility.ValidateDependencySpec(dgFile);
// Create requests
var requests = new List <RestoreSummaryRequest>();
var toolRequests = new List <RestoreSummaryRequest>();
foreach (var projectNameToRestore in dgFile.Restore)
{
var closure = dgFile.GetClosure(projectNameToRestore);
var projectDependencyGraphSpec = dgFile.WithProjectClosure(projectNameToRestore);
var externalClosure = new HashSet <ExternalProjectReference>(closure.Select(GetExternalProject));
var rootProject = externalClosure.Single(p =>
StringComparer.Ordinal.Equals(projectNameToRestore, p.UniqueName));
var request = Create(projectNameToRestore, rootProject, externalClosure, restoreContext, projectDgSpec: projectDependencyGraphSpec);
if (request.Request.ProjectStyle == ProjectStyle.DotnetCliTool)
{
// Store tool requests to be filtered later
toolRequests.Add(request);
}
else
{
requests.Add(request);
}
}
// Filter out duplicate tool restore requests
requests.AddRange(ToolRestoreUtility.GetSubSetRequests(toolRequests));
return(requests);
}
private IReadOnlyList <RestoreSummaryRequest> GetRequestsFromItems(RestoreArgs restoreContext, DependencyGraphSpec dgFile)
{
if (restoreContext == null)
{
throw new ArgumentNullException(nameof(restoreContext));
}
if (dgFile == null)
{
throw new ArgumentNullException(nameof(dgFile));
}
// Validate the dg file input, this throws if errors are found.
SpecValidationUtility.ValidateDependencySpec(dgFile);
// Create requests
var requests = new ConcurrentBag <RestoreSummaryRequest>();
var toolRequests = new ConcurrentBag <RestoreSummaryRequest>();
var parallelOptions = new ParallelOptions
{
// By default, max degree of parallelism is -1 which means no upper bound.
// Limiting to processor count reduces task context switching which is better
MaxDegreeOfParallelism = Environment.ProcessorCount
};
using (var settingsLoadingContext = new SettingsLoadingContext())
{
// Parallel.Foreach has an optimization for Arrays, so calling .ToArray() is better and adds almost no overhead
Parallel.ForEach(dgFile.Restore.ToArray(), parallelOptions, projectNameToRestore =>
{
var closure = dgFile.GetClosure(projectNameToRestore);
var projectDependencyGraphSpec = dgFile.WithProjectClosure(projectNameToRestore);
var externalClosure = new HashSet <ExternalProjectReference>(closure.Select(GetExternalProject));
var rootProject = externalClosure.Single(p =>
StringComparer.Ordinal.Equals(projectNameToRestore, p.UniqueName));
var request = Create(projectNameToRestore, rootProject, externalClosure, restoreContext, projectDgSpec: projectDependencyGraphSpec, settingsLoadingContext: settingsLoadingContext);
if (request.Request.ProjectStyle == ProjectStyle.DotnetCliTool)
{
// Store tool requests to be filtered later
toolRequests.Add(request);
}
else
{
requests.Add(request);
}
});
}
// Filter out duplicate tool restore requests
foreach (var subSetRequest in ToolRestoreUtility.GetSubSetRequests(toolRequests))
{
requests.Add(subSetRequest);
}
return(requests.ToArray());
}