WIP - Start work on updating project diagnostics view

crates/project/src/project.rs

@@ -56,9 +56,11 @@ pub struct Collaborator {
     pub replica_id: ReplicaId,
 }
 
+#[derive(Debug)]
 pub enum Event {
     ActiveEntryChanged(Option<ProjectEntry>),
     WorktreeRemoved(usize),
+    DiagnosticsUpdated(ProjectPath),
 }
 
 #[derive(Clone, Debug, Eq, PartialEq, Hash)]
@@ -473,6 +475,15 @@ impl Project {
 
     fn add_worktree(&mut self, worktree: ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
         cx.observe(&worktree, |_, _, cx| cx.notify()).detach();
+        cx.subscribe(&worktree, |_, worktree, event, cx| match event {
+            worktree::Event::DiagnosticsUpdated(path) => {
+                cx.emit(Event::DiagnosticsUpdated(ProjectPath {
+                    worktree_id: worktree.id(),
+                    path: path.clone(),
+                }));
+            }
+        })
+        .detach();
         self.worktrees.push(worktree);
         cx.notify();
     }