fix(js): stabilize unresolved local import target ids (#2457)

graphify/extract.py

@@ -413,6 +413,12 @@ def _import_js(node, source: bytes, file_nid: str, stem: str, edges: list, str_p
         resolved = _resolve_js_import_target(raw, str_path)
         if resolved is not None:
             tgt_nid, resolved_path = resolved
+            # `_resolve_js_import_path` returns the attempted path when no
+            # local file exists. Static ES imports must treat that as unresolved
+            # rather than minting a checkout-specific target ID (#2457).
+            if resolved_path is not None and not resolved_path.is_file():
+                tgt_nid = _make_id("ref", raw)
+                resolved_path = None
             edge = {
                 "source": file_nid,
                 "target": tgt_nid,

tests/test_js_import_resolution.py

@@ -1017,6 +1017,29 @@ def test_tsconfig_alias_none_exist_creates_no_false_edge(tmp_path: Path):
     assert not _has_edge(result, "src/routes/page.ts", "src/lib/utils.ts")
 
 
+def test_unresolved_relative_import_uses_stable_ref_target(tmp_path: Path):
+    """A missing local module must not leak the checkout path into graph IDs (#2457)."""
+    importer = _write(
+        tmp_path / "src/consumer.ts",
+        "import { getFoo } from './generated/api'\n"
+        "export function run(): number { return getFoo() }\n",
+    )
+
+    result = _extract_for([importer], tmp_path)
+    source = _file_node_id(Path("src/consumer.ts"))
+    imports_from = [
+        edge["target"]
+        for edge in result["edges"]
+        if edge["source"] == source and edge["relation"] == "imports_from"
+    ]
+
+    assert imports_from == [_make_id("ref", "./generated/api")]
+    assert not any(
+        edge["source"] == source and edge["relation"] == "imports"
+        for edge in result["edges"]
+    )
+
+
 # ── #927: wildcard tsconfig path patterns ────────────────────────────────────