From f158e20713cce2a9b167e31887d074843092d648 Mon Sep 17 00:00:00 2001
From: Simon Karan <simon.karan@check24.de>
Date: Mon, 11 Aug 2025 13:12:33 +0200
Subject: [PATCH] Add --version flag to CLI

Add support for --version (-V) flag to display the current version.
The version is now available on-demand via CLI flag in addition to
being displayed during server startup.

Updates:
- Add version attribute to CLI struct using clap's built-in version support
- Update README.md to document the new --version flag and usage

Resolves the common CLI expectation of having a version flag.
---
 README.md  | 3 ++-
 src/cli.rs | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index fcfe3b8..d851948 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,8 @@ Commands:
   help   Print this message or the help of the given subcommand(s)
 
 Options:
-  -h, --help  Print help
+  -h, --help     Print help
+  -V, --version  Print version
 ```
 
 ### Using the stdio protocol
diff --git a/src/cli.rs b/src/cli.rs
index fee28a3..02219ea 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -24,6 +24,7 @@ use std::path::PathBuf;
 
 /// Elastic MCP server
 #[derive(Debug, Parser)]
+#[command(version)]
 pub struct Cli {
     /// Container mode: change default http address, rewrite localhost to the host's address
     #[clap(global=true, long, env = "CONTAINER_MODE")]