feat: enhance editing capabilities by adding 'replaceAll' mode and registering empty prompts

Author: bigcodegen

src/index.ts

@@ -133,7 +133,7 @@ server.tool(
   "vim_edit",
   { 
     startLine: z.number().describe("The line number where editing should begin (1-indexed)"),
-    mode: z.enum(["insert", "replace"]).describe("Whether to insert new content or replace existing content"),
+    mode: z.enum(["insert", "replace", "replaceAll"]).describe("Whether to insert new content, replace existing content, or replace entire buffer"),
     lines: z.string().describe("The text content to insert or use as replacement")
   },
   async ({ startLine, mode, lines }) => {
@@ -219,6 +219,11 @@ server.tool(
   }
 );
 
+// Register an empty prompts list since we don't support any prompts. Clients still ask.
+server.prompt("empty", {}, () => ({
+  messages: []
+}));
+
 /**
  * Start the server using stdio transport.
  * This allows the server to communicate via standard input/output streams.

src/neovim.ts

@@ -186,13 +186,20 @@ export class NeovimManager {
     }
   }
 
-  public async editLines(startLine: number, mode: 'replace' | 'insert', newText: string): Promise<string> {
+  public async editLines(startLine: number, mode: 'replace' | 'insert' | 'replaceAll', newText: string): Promise<string> {
     try {
       const nvim = await this.connect();
       const splitByLines = newText.split('\n');
       const buffer = await nvim.buffer;
 
-      if (mode === 'replace') {
+      if (mode === 'replaceAll') {
+        // Handle full buffer replacement
+        const lineCount = await buffer.length;
+        // Delete all lines and then append new content
+        await buffer.remove(0, lineCount, true);
+        await buffer.insert(splitByLines, 0);
+        return 'Buffer completely replaced';
+      } else if (mode === 'replace') {
         await buffer.replace(splitByLines, startLine - 1);
         return 'Lines replaced successfully';
       } else if (mode === 'insert') {