Support external vault roots across tooling

scripts/generate-graph.py

@@ -18,6 +18,8 @@ from datetime import datetime, timezone
 from pathlib import Path
 from typing import Dict, List, Tuple
 
+from vault_root import parse_vault_args
+
 
 # Obsidian-style wiki link: [[target#anchor|alias]]
 WIKI_LINK_RE = re.compile(r"\[\[([^\]|#]+)(?:#[^\]|]+)?(?:\|([^\]]+))?\]\]")
@@ -438,7 +440,7 @@ def parse_args() -> argparse.Namespace:
         action="store_true",
         help="write index/graph.json (default unless --validate is used alone)",
     )
-    return parser.parse_args()
+    return parse_vault_args(parser)
 
 
 def print_unresolved(unresolved: List[UnresolvedLink]) -> None:
@@ -502,7 +504,7 @@ def print_invalid_node_types(invalid: List[Dict[str, object]]) -> None:
 
 def main() -> None:
     args = parse_args()
-    root = Path(__file__).resolve().parents[1]
+    root = args.vault_root
     output = root / "index" / "graph.json"
     should_write = args.write or not args.validate