Send configuration for mesonbuild.$SERVER to the server

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## next
 
+- Add configuration options specific for Swift-MesonLSP.
+
 ## 1.13.0
 
 - Add support for CodeLLDB extension

src/extension.ts

@@ -246,8 +246,16 @@ export async function activate(ctx: vscode.ExtensionContext) {
 
   let client = await createLanguageServerClient(server, await shouldDownload(downloadLanguageServer), ctx);
   if (client !== null && server == "Swift-MesonLSP") {
+    ctx.subscriptions.push(
+      vscode.workspace.onDidChangeConfiguration((e) => {
+        if (e.affectsConfiguration(`mesonbuild.${server}`)) {
+          client?.reloadConfig();
+        }
+      }),
+    );
     ctx.subscriptions.push(client);
     client.start();
+    await client.reloadConfig();
 
     getOutputChannel().appendLine("Not enabling the muon linter/formatter because Swift-MesonLSP is active.");
   } else {
@@ -262,10 +270,12 @@ export async function activate(ctx: vscode.ExtensionContext) {
         if (client !== null) {
           ctx.subscriptions.push(client);
           client.start();
+          await client.reloadConfig();
           // TODO: The output line from above about not enabling muon would be good to have here.
         }
       } else {
         client.restart();
+        await client.reloadConfig();
       }
     }),
   );

src/lsp/index.ts

@@ -7,6 +7,8 @@ import * as os from "os";
 import * as path from "path";
 import * as vscode from "vscode";
 import {
+  DidChangeConfigurationNotification,
+  DidChangeConfigurationParams,
   Executable,
   LanguageClient,
   LanguageClientOptions,
@@ -15,6 +17,7 @@ import {
 } from "vscode-languageclient/node";
 import * as storage from "../storage";
 import { LanguageServer } from "../types";
+import { getOutputChannel } from "../utils";
 
 export abstract class LanguageServerClient {
   private static readonly clientOptions: LanguageClientOptions = {
@@ -183,7 +186,8 @@ export abstract class LanguageServerClient {
       debug: this.debugExe,
       transport: TransportKind.stdio,
     };
-
+    const options = LanguageServerClient.clientOptions;
+    options.initializationOptions = vscode.workspace.getConfiguration(`mesonbuild.${this.server}`);
     this.ls = new LanguageClient(
       this.server!,
       `Meson Language Server (${this.server})`,
@@ -193,4 +197,12 @@ export abstract class LanguageServerClient {
     );
     this.ls.start();
   }
+
+  async reloadConfig(): Promise<void> {
+    const config = vscode.workspace.getConfiguration(`mesonbuild.${this.server}`);
+    const params: DidChangeConfigurationParams = {
+      settings: config,
+    };
+    await this.ls!.sendNotification(DidChangeConfigurationNotification.type, params);
+  }
 }