/// <summary>
/// Attempt to find references to the C++ project in the C# project. First by id, then by name/path. Matching by id looks like it will always
/// fail due to <see cref="MSBuildProjectLoader.Worker.ResolvedReferenceBuilder.ResolveReferencesAsync"/> which will create a dummy id for
/// unrecognised projects, rather than reading the real id out of the solution file.
/// </summary>
private static bool ProjectReferencesProject(Project project, CppProject cppProject)
{
var referencedProjectIds = project.AllProjectReferences.Select(p => p.ProjectId);
// Roslyn doesn't set ids for unrecognised projects so this probably won't match.
bool anyIdsMatch = referencedProjectIds.Any(p => p.Id == cppProject.Id);
if (anyIdsMatch)
{
return(true);
}
// Match on (debug) name since id is expected to fail.
var debugNameExpression = new Regex($@"#{Constants.GuidExpression} - (?<DebugName>.*)\)");
var debugNames = referencedProjectIds.Select(p => debugNameExpression.Match(p.ToString()).Groups["DebugName"].Value);
// Debug names contain relative paths to the referenced project. Turn them into absolute paths so they can be matched to the C++ projects.
string root = new FileInfo(project.FilePath).DirectoryName;
foreach (var projectId in referencedProjectIds)
{
string debugName = debugNameExpression.Match(projectId.ToString()).Groups["DebugName"].Value;
string referencePath = Path.Combine(root, debugName);
string canonicalPath = Path.GetFullPath(referencePath);
if (canonicalPath.Equals(cppProject.FilePath, StringComparison.OrdinalIgnoreCase))
{
return(true);
}
}
return(false);
}
private void LoadSolution_WorkspaceFailed(object sender, WorkspaceDiagnosticEventArgs e)
{
if (e.Diagnostic.Kind == WorkspaceDiagnosticKind.Failure && _cppProjectExpression.IsMatch(e.Diagnostic.Message))
{
string path = _cppProjectExpression.Match(e.Diagnostic.Message).Groups["path"].Value;
var project = new CppProject();
project.Load(path);
var solutionProject = _solutionProjects.SingleOrDefault(p => p.FilePath.Equals(project.FilePath, StringComparison.OrdinalIgnoreCase));
if (solutionProject == null)
{
_log.Warning($"Failed to locate C++ project ${project.FilePath} in solution. Project id will be invalid for this project.");
project.SetId(Guid.NewGuid());
}
else
{
project.SetId(solutionProject.Id);
}
// Add the project via the private property since the solution is not yet loaded.
_cppProjects.Add(project);
_log.Warning($"C++ project found at {path}. Analysis results may be unreliable due to lack of Roslyn support for vcxproj analysis. Custom analysis will be performed for C++ changes");
++_loadWarningCount;
return;
}
switch (e.Diagnostic.Kind)
{
case WorkspaceDiagnosticKind.Failure:
_log.Warning(e.Diagnostic.Message);
++_loadErrorCount;
break;
case WorkspaceDiagnosticKind.Warning:
_log.Information(e.Diagnostic.Message);
++_loadWarningCount;
break;
}
}
private static AnalysisResult CreateAnalysisResult(CppProject cppProject, int distance) => new AnalysisResult(cppProject.Name, cppProject.FilePath, distance, $"{cppProject.AssemblyName}.dll");