0hmX/am3352

scripts/export-ddr-codesign-replacements.ts

import{readFileSync,writeFileSync}from'node:fs'
import{resolve}from'node:path'
import{createHash}from'node:crypto'
const[parentDir,childDir]=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`]}`,parent=read(resolve(parentDir,'candidate.circuit.json')),child=read(resolve(childDir,'candidate.circuit.json')),host=read(resolve(childDir,'host-bundle.json')),a=new Map(parent.map((e:any)=>[key(e),e])),b=new Map(child.map((e:any)=>[key(e),e]))
if(a.size!==parent.length||b.size!==child.length)throw Error('Duplicate object IDs')
const replacements=child.filter((e:any)=>a.has(key(e))&&hash(a.get(key(e)))!==hash(e)).map((e:any)=>({id:key(e),before:a.get(key(e)),after:e,beforeSha256:hash(a.get(key(e))),afterSha256:hash(e)})),removals=parent.filter((e:any)=>!b.has(key(e))),additions=child.filter((e:any)=>!a.has(key(e))),replay=new Map(a)
for(const w of replacements)replay.set(w.id,w.after);for(const e of removals)replay.delete(key(e));for(const e of additions)replay.set(key(e),e)
if(replay.size!==child.length||child.some((e:any)=>hash(replay.get(key(e)))!==hash(e)))throw Error('Replay mismatch')
writeFileSync(resolve(childDir,'original-copper-replacements.json'),JSON.stringify({captureHash:host.captureHash,parentDirectory:resolve(parentDir),parentCircuitSha256:hash(parent),candidateCircuitSha256:hash(child),replacements,removals,additions,allOtherElementsExact:true,scope:'Exact geometry co-design diff; no claim of full byte matching or complete DDR qualification.'},null,2))
console.log(JSON.stringify({replacements:replacements.length,removals:removals.length,additions:additions.length}))