0hmX/am3352

scripts/prepare-ddr-dq4-after-dq2.ts

/** Exact DQ2 replacement replay, then retire only DQ4 for isolated co-design. */
import{readFileSync,writeFileSync,mkdirSync}from'node:fs'
import{resolve}from'node:path'
import{createHash}from'node:crypto'
import{auditCompositeHostTopology}from'./ddr-composite-routing-context'
const [dir,out]=process.argv.slice(2),read=(p:string)=>JSON.parse(readFileSync(p,'utf8')),hash=(x:any)=>createHash('sha256').update(JSON.stringify(x)).digest('hex'),key=(e:any)=>`${e.type}:${e[`${e.type}_id`]}`
const m=read(resolve(dir,'original-copper-replacements.json')),parent=read(resolve(m.parentDirectory,'candidate.circuit.json')),candidate=read(resolve(dir,'candidate.circuit.json')),host=read(resolve(dir,'host-bundle.json')),input=read(resolve(m.parentDirectory,'routing-input.json')),report=read(resolve(m.parentDirectory,'report.json'))
if(hash(parent)!==m.parentCircuitSha256||hash(candidate)!==m.candidateCircuitSha256||m.captureHash!==host.captureHash||host.traces.length!==12)throw Error('DQ2 parent/candidate provenance differs')
const replay=new Map(parent.map((e:any)=>[key(e),e])),touched=new Set<string>()
for(const w of m.replacements){const k=key(w.before),afterKey=key(w.after);if(touched.has(k)||hash(replay.get(k))!==hash(w.before)||hash(w.before)!==w.beforeSha256||hash(w.after)!==w.afterSha256||(k!==afterKey&&replay.has(afterKey)))throw Error('Invalid exact DQ2 replacement');touched.add(k);replay.delete(k);replay.set(afterKey,w.after)}
if(replay.size!==candidate.length||candidate.some((e:any)=>hash(replay.get(key(e)))!==hash(e)))throw Error('Candidate has undeclared changes')
for(const t of host.traces)if(hash(candidate.find((e:any)=>e.type==='pcb_trace'&&e.pcb_trace_id===t.pcb_trace_id))!==hash(t))throw Error('Host differs')
const old=host.traces.find((t:any)=>t.connection_name==='source_trace_579');if(!old)throw Error('Missing DQ4 host')
const circuit=candidate.filter((e:any)=>e.pcb_trace_id!==old.pcb_trace_id),traces=host.traces.filter((t:any)=>t!==old),topology=auditCompositeHostTopology(circuit,traces,input.connections)
if(!topology.valid||topology.physical.connectivity.filter(c=>c.connected).length!==11)throw Error('Retained11 baseline failed')
mkdirSync(out,{recursive:true});for(const[n,v]of Object.entries({'candidate.circuit.json':circuit,'host-bundle.json':{...host,traces},'routing-input.json':input,'report.json':{...report,candidateCircuitSha256:hash(circuit),hostTracesSha256:hash(traces),physical:topology.physical},'invalidation.json':{parentDirectory:resolve(dir),parentSha256:hash(candidate),dq2ManifestSha256:hash(m),removed:old,allOtherElementsExact:true,topology}}))writeFileSync(resolve(out,n),JSON.stringify(v,null,2))