/// <summary>
/// Adds an external project dependency to the project.
/// </summary>
/// <param name="path">The path to the external Xcode project (the .xcodeproj file).</param>
/// <param name="projectPath">The project path to the new project.</param>
/// <param name="sourceTree">The source tree the path is relative to. The [[PBXSourceTree.Group]] tree is not supported.</param>
internal static void AddExternalProjectDependency(this PBXProject proj, string path, string projectPath, PBXSourceTree sourceTree)
{
if (sourceTree == PBXSourceTree.Group)
{
throw new Exception("sourceTree must not be PBXSourceTree.Group");
}
path = PBXPath.FixSlashes(path);
projectPath = PBXPath.FixSlashes(projectPath);
// note: we are duplicating products group for the project reference. Otherwise Xcode crashes.
PBXGroupData productGroup = PBXGroupData.CreateRelative("Products");
proj.GroupsAddDuplicate(productGroup); // don't use GroupsAdd here
PBXFileReferenceData fileRef = PBXFileReferenceData.CreateFromFile(path, Path.GetFileName(projectPath),
sourceTree);
proj.FileRefsAdd(path, projectPath, null, fileRef);
proj.CreateSourceGroup(PBXPath.GetDirectory(projectPath)).children.AddGUID(fileRef.guid);
proj.project.project.AddReference(productGroup.guid, fileRef.guid);
}