check for backend sha env var and add to data if exists

Author: mooperd

chipflow_lib/steps/silicon.py

@@ -133,6 +133,12 @@ def submit(self, rtlil_path, *, dry_run=False):
             "name": submission_name,
         }
 
+        # Check if BACKEND_SHA exists in the environment and add it to the data dictionary
+        backend_sha = os.environ.get("BACKEND_SHA")
+        if backend_sha:
+            data["backendSha"] = backend_sha
+
+
         pads = {}
         for iface, port in self.platform._ports.items():
             width = len(port.pins)
@@ -166,6 +172,7 @@ def submit(self, rtlil_path, *, dry_run=False):
             print(f"files['config']=\n{json.dumps(config, indent=2)}")
             return
 
+
         logger.info(f"Submitting {submission_name} for project {self.project_name}")
         endpoint = os.environ.get("CHIPFLOW_API_ENDPOINT", "https://build.chipflow.org/api/builds")
         host = urlparse(endpoint).netloc