Add initial messages for setting up a worktree share

zed-rpc/proto/zed.proto

@@ -6,22 +6,52 @@ message FromClient {
 
     oneof variant {
         Auth auth = 2;
+        NewWorktree new_worktree = 3;
+        ShareWorktree share_worktree = 4;
+        UploadFile upload_file = 5;
     }
 
     message Auth {
         int32 user_id = 1;
         string access_token = 2;
     }
+
+    message NewWorktree {}
+
+    message ShareWorktree {
+        uint64 worktree_id = 1;
+        repeated PathAndDigest files = 2;
+    }
+
+    message PathAndDigest {
+        bytes path = 1;
+        bytes digest = 2;
+    }
+
+    message UploadFile {
+        bytes path = 1;
+        bytes content = 2;
+    }
 }
 
 message FromServer {
     optional int32 request_id = 1;
 
     oneof variant {
-        Ack ack = 2;
+        AuthResponse auth_response = 2;
+        NewWorktreeResponse new_worktree_response = 3;
+        ShareWorktreeResponse share_worktree_response = 4;
     }
 
-    message Ack {
-        optional string error_message = 1;
+    message AuthResponse {
+        bool credentials_valid = 1;
+    }
+
+    message NewWorktreeResponse {
+        uint64 worktree_id = 1;
+    }
+
+    message ShareWorktreeResponse {
+        repeated int32 needed_file_indices = 1;
     }
 }

zed-rpc/src/proto.rs

@@ -5,14 +5,25 @@ use std::io;
 
 include!(concat!(env!("OUT_DIR"), "/zed.messages.rs"));
 
+use from_client as client;
+use from_server as server;
+
 pub trait Request {
     type Response;
 }
 
-impl Request for from_client::Auth {
-    type Response = from_server::Ack;
+macro_rules! request_response {
+    ($req:path, $resp:path) => {
+        impl Request for $req {
+            type Response = $resp;
+        }
+    };
 }
 
+request_response!(client::Auth, server::AuthResponse);
+request_response!(client::NewWorktree, server::NewWorktreeResponse);
+request_response!(client::ShareWorktree, server::ShareWorktreeResponse);
+
 /// A stream of protobuf messages.
 pub struct MessageStream<T> {
     byte_stream: T,