fix: add version command to Specify CLI #811

Author: lshgdut

src/specify_cli/__init__.py

@@ -37,6 +37,7 @@
 
 import typer
 import httpx
+import importlib.metadata
 from rich.console import Console
 from rich.panel import Panel
 from rich.progress import Progress, SpinnerColumn, TextColumn
@@ -52,6 +53,7 @@
 import ssl
 import truststore
 
+__version__ = importlib.metadata.version(__package__)
 ssl_context = truststore.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
 client = httpx.Client(verify=ssl_context)
 
@@ -373,9 +375,22 @@ def show_banner():
     console.print(Align.center(Text(TAGLINE, style="italic bright_yellow")))
     console.print()
 
+def show_version():
+    """Show the application version."""
+    typer.echo(f"{__package__} {__version__}")
+
 @app.callback()
-def callback(ctx: typer.Context):
+def callback(
+        ctx: typer.Context, 
+        version: bool = typer.Option(
+            None, "--version", help="Show version and exit.", is_eager=True
+        ),
+    ):
     """Show banner when no subcommand is provided."""
+    if version:
+        show_version()
+        raise typer.Exit()
+
     if ctx.invoked_subcommand is None and "--help" not in sys.argv and "-h" not in sys.argv:
         show_banner()
         console.print(Align.center("[dim]Run 'specify --help' for usage information[/dim]"))
@@ -1118,6 +1133,11 @@ def check():
     if not any(agent_results.values()):
         console.print("[dim]Tip: Install an AI assistant for the best experience[/dim]")
 
+@app.command()
+def version():
+    """Show the application version."""
+    show_version()
+
 def main():
     app()