[model-gateway] include smg version command in py binding (#14274)

sgl-router/bindings/python/sglang_router/cli.py

@@ -15,6 +15,8 @@ import os
 import sys
 from typing import List, Optional
 
+from sglang_router.sglang_router_rs import get_short_version_string, get_version_string
+
 
 def create_parser() -> argparse.ArgumentParser:
     """Create the main CLI parser with subcommands."""
@@ -51,6 +53,14 @@ def main(argv: Optional[List[str]] = None) -> None:
     if argv is None:
         argv = sys.argv[1:]
 
+    # Handle version flags before parsing
+    if argv and argv[0] in ["--version", "-V"]:
+        if argv[0] == "--version":
+            print(get_version_string())
+        else:
+            print(get_short_version_string())
+        sys.exit(0)
+
     # Handle empty command - show help
     if not argv or argv[0] not in ["launch", "server", "-h", "--help"]:
         parser = create_parser()

sgl-router/bindings/python/src/lib.rs

@@ -704,6 +704,18 @@ impl Router {
     }
 }
 
+/// Get formatted version information string with full build details
+#[pyfunction]
+fn get_version_string() -> String {
+    version::get_version_string()
+}
+
+/// Get short version information string
+#[pyfunction]
+fn get_short_version_string() -> String {
+    version::get_short_version_string()
+}
+
 #[pymodule]
 fn sglang_router_rs(m: &Bound<'_, PyModule>) -> PyResult<()> {
     m.add_class::<PolicyType>()?;
@@ -712,5 +724,7 @@ fn sglang_router_rs(m: &Bound<'_, PyModule>) -> PyResult<()> {
     m.add_class::<PyOracleConfig>()?;
     m.add_class::<PyPostgresConfig>()?;
     m.add_class::<Router>()?;
+    m.add_function(wrap_pyfunction!(get_version_string, m)?)?;
+    m.add_function(wrap_pyfunction!(get_short_version_string, m)?)?;
     Ok(())
 }