[xcl-lens] Add --version

projects/xcl-lens/src/xcl_lens/main.py

@@ -5,6 +5,7 @@ from typing import Annotated
 
 import typer
 
+from . import __version__
 from .runner import run_with_input
 from .utils import get_mpi_rank
 
@@ -20,6 +21,12 @@ app = typer.Typer(
 )
 
 
+def _version_callback(value: bool):
+    if value:
+        typer.echo(f"xcl-lens {__version__}")
+        raise typer.Exit()
+
+
 @app.command(
     context_settings={
         "allow_extra_args": True,
@@ -29,7 +36,20 @@ app = typer.Typer(
 )
 def main(
     ctx: typer.Context,
-    summary: Annotated[bool, typer.Option(help="Print summary report only")] = False,
+    version: Annotated[
+        bool,
+        typer.Option(
+            "--version",
+            help="Show version and exit",
+            is_flag=True,
+            is_eager=True,
+            callback=_version_callback,
+        ),
+    ] = False,
+    summary: Annotated[
+        bool,
+        typer.Option("-s", "--summary", help="Print summary report only"),
+    ] = False,
     verbose: Annotated[bool, typer.Option("-v", "--verbose", help="Print verbose reports")] = False,
     hosts: Annotated[str | None, typer.Option(help="Filter by hosts (comma-separated)")] = None,
     ranks: Annotated[str | None, typer.Option(help="Filter by ranks (comma-separated)")] = None,