seveibar/nema17-stepper-motor-driver-tmc2209-usb-pd

scripts/repair-routes.py

"""Apply reviewed local route edits only to their exact original circuit input."""
import json, hashlib
from pathlib import Path
p=Path('routing/route-plan.json');plan=json.loads(p.read_text())
patch=json.loads(Path('routing/trace-overrides.json').read_text())
fingerprint=hashlib.sha256(json.dumps(plan['expectedInput'],sort_keys=True,separators=(',',':')).encode()).hexdigest()
if fingerprint!=patch['expected_input_sha256']:
 raise ValueError('Circuit input changed: review/reroute these local edits instead of replaying them')
found=set()
for t in plan['traces']:
 id=t['pcb_trace_id']
 if id in patch['routes']:
  route=patch['routes'][id]
  def endpoints(r):return sorted((round(p['x'],6),round(p['y'],6)) for p in [r[0],r[-1]])
  if endpoints(t['route'])!=endpoints(route):raise ValueError('Trace endpoints changed: '+id)
  t['route']=route;found.add(id)
assert found==set(patch['routes']), 'Missing route IDs'
p.write_text(json.dumps(plan,indent=2)+'\n')
print(f'Applied {len(found)} guarded route overrides; run the full build and DRC.')