Check for CHIPFLOW_BACKEND_VERSION env var and add to data if exists

Author: mooperd

chipflow_lib/steps/silicon.py

@@ -128,11 +128,18 @@ def submit(self, rtlil_path, *, dry_run=False):
                 dep_versions[package] = importlib.metadata.version(package)
             except importlib.metadata.PackageNotFoundError:
                 dep_versions[package] = None
+
         data = {
             "projectId": self.project_name,
             "name": submission_name,
         }
 
+        # Dev only var to select specifc backend version
+        # Check if CHIPFLOW_BACKEND_VERSION exists in the environment and add it to the data dictionary
+        chipflow_backend_version = os.environ.get("CHIPFLOW_BACKEND_VERSION")
+        if chipflow_backend_version:
+            data["chipflow_backend_version"] = chipflow_backend_version
+
         pads = {}
         for iface, port in self.platform._ports.items():
             width = len(port.pins)