Updated

backend/technology_manifest.py

@@ -0,0 +1,28 @@
+import os
+
+import yaml
+
+
+class TechnologyManifestError(Exception):
+    pass
+
+
+def technology_manifest_path(pdks_root: str, foundry: str, technology: str) -> str:
+    base = os.path.abspath(pdks_root)
+    path = os.path.abspath(os.path.join(base, foundry, technology, "technology.yml"))
+    if not path.startswith(base + os.sep):
+        raise TechnologyManifestError("Invalid technology path")
+    return path
+
+
+def read_technology_manifest(pdks_root: str, foundry: str, technology: str) -> dict:
+    path = technology_manifest_path(pdks_root, foundry, technology)
+    if not os.path.exists(path):
+        raise TechnologyManifestError("technology manifest not generated; run mxpic_forge technology export workflow")
+    with open(path, "r", encoding="utf-8") as file:
+        manifest = yaml.safe_load(file) or {}
+    if not isinstance(manifest.get("xsections"), dict):
+        raise TechnologyManifestError("technology manifest is missing xsections")
+    if not isinstance(manifest.get("defaults"), dict):
+        raise TechnologyManifestError("technology manifest is missing defaults")
+    return manifest