/// <summary>
/// Adds a project to an existing Roslyn workspace.
/// </summary>
/// <param name="analyzer">The Buildalyzer project analyzer.</param>
/// <param name="workspace">A Roslyn workspace.</param>
/// <param name="addProjectReferences">
/// <c>true</c> to add projects to the workspace for project references that exist in the same
/// <see cref="AnalyzerManager" />.
/// </param>
/// <returns>The newly added Roslyn project.</returns>
public static Project AddToWorkspace(this ProjectAnalyzer analyzer, AdhocWorkspace workspace, bool addProjectReferences = false)
{
if (analyzer == null)
{
throw new ArgumentNullException(nameof(analyzer));
}
if (workspace == null)
{
throw new ArgumentNullException(nameof(workspace));
}
// Get or create an ID for this project
var projectGuid = analyzer.CompiledProject?.GetPropertyValue("ProjectGuid");
var projectId = !string.IsNullOrEmpty(projectGuid) &&
Guid.TryParse(analyzer.CompiledProject?.GetPropertyValue("ProjectGuid"), out var projectIdGuid)
? ProjectId.CreateFromSerialized(projectIdGuid)
: ProjectId.CreateNewId();
// Create and add the project
var projectInfo = GetProjectInfo(analyzer, workspace, projectId);
var solution = workspace.CurrentSolution.AddProject(projectInfo);
// Check if this project is referenced by any other projects in the workspace
foreach (var existingProject in solution.Projects.ToArray())
{
if (!existingProject.Id.Equals(projectId) &&
analyzer.Manager.Projects.TryGetValue(existingProject.FilePath, out var existingAnalyzer) &&
(existingAnalyzer.GetProjectReferences()?.Contains(analyzer.ProjectFilePath) ?? false))
{
// Add the reference to the existing project
var projectReference = new ProjectReference(projectId);
solution = solution.AddProjectReference(existingProject.Id, projectReference);
}
}
// Apply solution changes
if (!workspace.TryApplyChanges(solution))
{
throw new InvalidOperationException("Could not apply workspace solution changes");
}
// Add any project references not already added
if (addProjectReferences)
{
foreach (var referencedAnalyzer in GetReferencedAnalyzerProjects(analyzer))
{
// Check if the workspace contains the project inside the loop since adding one might also add this one due to transitive references
if (!workspace.CurrentSolution.Projects.Any(x => x.FilePath == referencedAnalyzer.ProjectFilePath))
{
AddToWorkspace(referencedAnalyzer, workspace, addProjectReferences);
}
}
}
// Find and return this project
return(workspace.CurrentSolution.GetProject(projectId));
}
/// <summary>
/// Gets a Roslyn workspace for the analyzed project.
/// </summary>
/// <param name="analyzer">The Buildalyzer project analyzer.</param>
/// <param name="addProjectReferences"><c>true</c> to add projects to the workspace for project references that exist in the same <see cref="AnalyzerManager"/>.</param>
/// <returns>A Roslyn workspace.</returns>
public static AdhocWorkspace GetWorkspace(this ProjectAnalyzer analyzer, bool addProjectReferences = false)
{
if (analyzer == null)
{
throw new ArgumentNullException(nameof(analyzer));
}
AdhocWorkspace workspace = new AdhocWorkspace();
AddToWorkspace(analyzer, workspace, addProjectReferences);
return(workspace);
}
public ProjectAnalyzer GetProject(string projectFilePath)
{
if (projectFilePath == null)
{
throw new ArgumentNullException(nameof(projectFilePath));
}
// Normalize as .sln uses backslash regardless of OS the sln is created on
projectFilePath = projectFilePath.Replace('\\', Path.DirectorySeparatorChar);
projectFilePath = ValidatePath(projectFilePath, true);
if (_projects.TryGetValue(projectFilePath, out ProjectAnalyzer project))
{
return(project);
}
project = new ProjectAnalyzer(this, projectFilePath);
_projects.Add(projectFilePath, project);
return(project);
}
private static ProjectInfo GetProjectInfo(ProjectAnalyzer analyzer, AdhocWorkspace workspace, ProjectId projectId)
{
string projectName = Path.GetFileNameWithoutExtension(analyzer.ProjectFilePath);
string languageName = GetLanguageName(analyzer.ProjectFilePath);
ProjectInfo projectInfo = ProjectInfo.Create(
projectId,
VersionStamp.Create(),
projectName,
projectName,
languageName,
filePath: analyzer.ProjectFilePath,
outputFilePath: analyzer.CompiledProject?.GetPropertyValue("TargetPath"),
documents: GetDocuments(analyzer, projectId),
projectReferences: GetExistingProjectReferences(analyzer, workspace),
metadataReferences: GetMetadataReferences(analyzer),
compilationOptions: CreateCompilationOptions(analyzer.Project, languageName));
return(projectInfo);
}
private static IEnumerable <ProjectAnalyzer> GetReferencedAnalyzerProjects(ProjectAnalyzer analyzer) => analyzer.GetProjectReferences() ?.Select(x => analyzer.Manager.Projects.TryGetValue(x, out ProjectAnalyzer a) ? a : null)
private static IEnumerable <ProjectReference> GetExistingProjectReferences(ProjectAnalyzer analyzer, AdhocWorkspace workspace) => analyzer.GetProjectReferences() ?.Select(x => workspace.CurrentSolution.Projects.FirstOrDefault(y => y.FilePath == x)) .Where(x => x != null) .Select(x => new ProjectReference(x.Id)) ?? Array.Empty <ProjectReference>();