Custom MSBuild Task to return ProjectItems in a Visual Studio Solution

GetProjects.cs

   public class GetProjects : Task
    {
        [Required]
        public string SolutionPath { get; set; }

        [Output]
        public ITaskItem[] Projects { get; set; }

        public override bool Execute()
        {
            var solution = new SolutionRepository(SolutionPath);

            var projects = solution.All();

            var results = new List<TaskItem>(projects.Count);

            foreach (var project in projects)
            {
                var taskItem = new TaskItem("Project");

                taskItem.SetMetadata("Name", project.Name);
                taskItem.SetMetadata("RelativePath", project.RelativePath);
                taskItem.SetMetadata("ProjectId", project.ProjectId.ToString());

                results.Add(taskItem);
            }

            Projects = results.ToArray();

            return true;
        }
    }

I was looking to automate calling /t:Package for every Visual Studio Project in a Solution from MSBuild - to do that I needed a way to get all the projects in a solution and then I'd compare the results against known Project Type GUIDs looking for Web projects.