Start work on renames

crates/rpc/proto/zed.proto

@@ -50,6 +50,10 @@ message Envelope {
         GetCodeActionsResponse get_code_actions_response = 42;
         ApplyCodeAction apply_code_action = 43;
         ApplyCodeActionResponse apply_code_action_response = 44;
+        PrepareRename prepare_rename = 58;
+        PrepareRenameResponse prepare_rename_response = 59;
+        PerformRename perform_rename = 60;
+        PerformRenameResponse perform_rename_response = 61;
 
         GetChannels get_channels = 45;
         GetChannelsResponse get_channels_response = 46;
@@ -274,6 +278,30 @@ message ApplyCodeActionResponse {
     ProjectTransaction transaction = 1;
 }
 
+message PrepareRename {
+    uint64 project_id = 1;
+    uint64 buffer_id = 2;
+    Anchor position = 3;
+}
+
+message PrepareRenameResponse {
+    bool can_rename = 1;
+    Anchor start = 2;
+    Anchor end = 3;
+    repeated VectorClockEntry version = 4;
+}
+
+message PerformRename {
+    uint64 project_id = 1;
+    uint64 buffer_id = 2;
+    Anchor position = 3;
+    string new_name = 4;
+}
+
+message PerformRenameResponse {
+    ProjectTransaction transaction = 2;
+}
+
 message CodeAction {
     Anchor start = 1;
     Anchor end = 2;

crates/rpc/src/proto.rs

@@ -167,6 +167,10 @@ messages!(
     (LeaveProject, Foreground),
     (OpenBuffer, Foreground),
     (OpenBufferResponse, Foreground),
+    (PerformRename, Background),
+    (PerformRenameResponse, Background),
+    (PrepareRename, Background),
+    (PrepareRenameResponse, Background),
     (RegisterProjectResponse, Foreground),
     (Ping, Foreground),
     (RegisterProject, Foreground),
@@ -205,6 +209,8 @@ request_messages!(
     (JoinProject, JoinProjectResponse),
     (OpenBuffer, OpenBufferResponse),
     (Ping, Ack),
+    (PerformRename, PerformRenameResponse),
+    (PrepareRename, PrepareRenameResponse),
     (RegisterProject, RegisterProjectResponse),
     (RegisterWorktree, Ack),
     (SaveBuffer, BufferSaved),
@@ -233,6 +239,7 @@ entity_messages!(
     JoinProject,
     LeaveProject,
     OpenBuffer,
+    PrepareRename,
     RemoveProjectCollaborator,
     SaveBuffer,
     ShareWorktree,