init

tools/vscode-gotlin/src/extension.ts

@@ -0,0 +1,86 @@
+import * as fs from "node:fs";
+import * as path from "node:path";
+import * as vscode from "vscode";
+import {
+  LanguageClient,
+  LanguageClientOptions,
+  ServerOptions
+} from "vscode-languageclient/node";
+
+let client: LanguageClient | undefined;
+
+export async function activate(context: vscode.ExtensionContext): Promise<void> {
+  const serverPath = resolveServerPath();
+  if (!serverPath) {
+    void vscode.window.showErrorMessage(
+      "Gotlin LSP binary was not found. Build ./bin/gotlin-lsp or set gotlin.serverPath."
+    );
+    return;
+  }
+
+  const serverOptions: ServerOptions = {
+    command: serverPath,
+    args: [],
+    options: {
+      env: {
+        ...process.env,
+        GOTLIN_GOPLS_PATH: resolveGoplsPath()
+      }
+    }
+  };
+
+  const clientOptions: LanguageClientOptions = {
+    documentSelector: [{ scheme: "file", language: "gotlin" }],
+    outputChannelName: "Gotlin Language Server"
+  };
+
+  client = new LanguageClient(
+    "gotlin-lsp",
+    "Gotlin Language Server",
+    serverOptions,
+    clientOptions
+  );
+
+  await client.start();
+}
+
+export async function deactivate(): Promise<void> {
+  if (client) {
+    await client.stop();
+    client = undefined;
+  }
+}
+
+function resolveServerPath(): string | undefined {
+  const configured = vscode.workspace
+    .getConfiguration("gotlin")
+    .get<string>("serverPath", "")
+    .trim();
+
+  if (configured) {
+    return configured;
+  }
+
+  const workspaceFolder = vscode.workspace.workspaceFolders?.[0];
+  if (workspaceFolder) {
+    const candidate = path.join(workspaceFolder.uri.fsPath, "bin", platformBinaryName("gotlin-lsp"));
+    if (fs.existsSync(candidate)) {
+      return candidate;
+    }
+  }
+
+  return "gotlin-lsp";
+}
+
+function platformBinaryName(base: string): string {
+  return process.platform === "win32" ? `${base}.exe` : base;
+}
+
+function resolveGoplsPath(): string {
+  const configured = vscode.workspace
+    .getConfiguration("gotlin")
+    .get<string>("goplsPath", "")
+    .trim();
+
+  return configured;
+}