cli: added version info in help

Author: DebaA17

cve_search_cli.py

@@ -2,6 +2,9 @@
 import requests
 import argparse
 import sys
+import os
+import subprocess
+from pathlib import Path
 from datetime import datetime
 try:
     from rich import print
@@ -25,6 +28,33 @@
     }
 )
 
+
+def get_version() -> str:
+    version = os.environ.get("SNAP_VERSION")
+    if version:
+        return version
+
+    version = os.environ.get("CVECLI_VERSION")
+    if version:
+        return version
+
+    try:
+        script_dir = Path(__file__).resolve().parent
+        result = subprocess.run(
+            ["git", "-C", str(script_dir), "describe", "--tags", "--always"],
+            capture_output=True,
+            text=True,
+            check=False,
+            timeout=1,
+        )
+        described = (result.stdout or "").strip()
+        if described:
+            return described
+    except Exception:
+        pass
+
+    return "unknown"
+
 def format_date(date_str):
     if not date_str:
         return "N/A"
@@ -150,9 +180,11 @@ def interactive_menu():
             console.print("[bold red]Invalid choice. Please try again.")
 
 def main():
-    parser = argparse.ArgumentParser(description="CVE Search CLI Tool")
+    version = get_version()
+    parser = argparse.ArgumentParser(description=f"CVE Search CLI Tool (version {version})")
     parser.add_argument("--id", help="Search CVE by ID, e.g., CVE-2024-12345")
     parser.add_argument("--keyword", help="Search CVEs by keyword in description")
+    parser.add_argument("--version", action="version", version=f"cvecli {version}")
     args = parser.parse_args()
 
     if args.id: