1 files changed, 21 insertions, 0 deletions

diff --git a/editors/code/src/commands/server_version.ts b/editors/code/src/commands/server_version.ts
new file mode 100644
index 000000000..421301b42
--- /dev/null
+++ b/editors/code/src/commands/server_version.ts
@@ -0,0 +1,21 @@
+import * as vscode from 'vscode';
+import { ensureServerBinary } from '../installation/server';
+import { Ctx, Cmd } from '../ctx';
+import { spawnSync } from 'child_process';
+
+export function serverVersion(ctx: Ctx): Cmd {
+    return async () => {
+        const binaryPath = await ensureServerBinary(ctx.config.serverSource);
+
+        if (binaryPath == null) {
+            throw new Error(
+                "Rust Analyzer Language Server is not available. " +
+                "Please, ensure its [proper installation](https://rust-analyzer.github.io/manual.html#installation)."
+            );
+        }
+
+        const version = spawnSync(binaryPath, ["--version"], { encoding: "utf8" }).stdout;
+        vscode.window.showInformationMessage('rust-analyzer version : ' + version);
+    };
+}
+