fix(cli): reject duplicate --side names with a clear error

2026-09-20 17:29:10 +02:00
parent 130087a556
commit de9309ca43
2 changed files with 36 additions and 0 deletions
@@ -108,6 +108,18 @@ def _build_spec(args: argparse.Namespace) -> EncounterSpec:
    map_spec = load_map(args.map)
    provided = [tuple(raw) for raw in args.side]
    provided_names = {raw[0] for raw in provided}
+    seen_names: set[str] = set()
+    duplicates: set[str] = set()
+    for raw in provided:
+        if raw[0] in seen_names:
+            duplicates.add(raw[0])
+        seen_names.add(raw[0])
+    if duplicates:
+        msg = (
+            "duplicate --side names (each camp must be provided exactly "
+            f"once): {', '.join(sorted(duplicates))}"
+        )
+        raise CliError(msg)
    missing = sorted(set(map_spec.deployment) - provided_names)
    if missing:
        msg = f"sides in map deployment without --side: {', '.join(missing)}"