From e6a1bd3ec2f0438507723ee6f9506a6788055d04 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=8Dtalo=20Johnny?= <italojohnnydosanjos@gmail.com>
Date: Thu, 7 Nov 2024 11:07:21 -0300
Subject: [PATCH] feat: add cli option to display version (#4444)

---
 src/backend/base/langflow/__main__.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/backend/base/langflow/__main__.py b/src/backend/base/langflow/__main__.py
index 330c1c671..53407b223 100644
--- a/src/backend/base/langflow/__main__.py
+++ b/src/backend/base/langflow/__main__.py
@@ -518,6 +518,30 @@ def api_key(
     api_key_banner(unmasked_api_key)
 
 
+def show_version(*, value: bool):
+    if value:
+        default = "DEV"
+        raw_info = get_version_info()
+        version = raw_info.get("version", default) if raw_info else default
+        typer.echo(f"langflow {version}")
+        raise typer.Exit
+
+
+@app.callback()
+def version_option(
+    *,
+    version: bool = typer.Option(
+        None,
+        "--version",
+        "-v",
+        callback=show_version,
+        is_eager=True,
+        help="Show the version and exit.",
+    ),
+):
+    pass
+
+
 def api_key_banner(unmasked_api_key) -> None:
     is_mac = platform.system() == "Darwin"
     import pyperclip