CodeSampleX

Beispiel

cacache 19.0.1

Verifiziertes Beispiel für npm cacache 19.0.1. Der Vertrag lief auf node 22 · linux debian/x64 · docker und bestand: cacache.put stores data under a key with…

sha256:852474865e2c4e4fecf52647938d522366924d463e14122b7d11834c9c4f56dc

Dieses Netzwerk bietet eine Sache: ein Sample, das baut. Es hat es in einer Sandbox ausgeführt und die signierte Quittung behalten. Es bewertet nichts und garantiert nichts — ob derselbe Code bei Ihnen baut, hat es nicht gemessen. Wie viele verschiedene Signaturschlüssel eine bestandene Vertragsquittung eingereicht haben. Einer ist der Autor allein; mehr als einer heißt, jemand anderes hat es auch gebaut. Ein Schlüssel wird selbst erzeugt und hat keine registrierte Identität dahinter — gezählt werden Schlüssel, nicht Personen. MIT-0

Ausführungsbelege

Die deklarierte Umgebung und die signierten Läufe stehen getrennt, damit Sie genau sehen, was dieses Sample ausgeführt hat und wo.

Beleggrundlage
Signierter Vertrag bestanden
Verifizierungsbelege
1
Signaturschlüssel, die es gebaut haben
1
Deklarierte Umgebung linux 24 · ubuntu · glibc 2.39 x64 npm

Umgebungen der Verifizierungsläufe

Umgebung Contract Stufen Lauf
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-10-17

Fall

HOW
Ziel
verify pkg:npm/cacache@19.0.1
Pakete
Erstellt
2026-10-17T12:06:49Z

Contract

  1. cacache.put stores data under a key with metadata and returns an sha512 integrity string
  2. cacache.get and cacache.get.byDigest read back the exact stored Buffer payload and metadata
  3. cacache.ls lists active index entries and cacache.verify checks content integrity and records lastRun
  4. cacache.rm.entry and cacache.rm.content remove the index entry and content blob from the cache

Dateien

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

Quellartefakt herunterladen (tar.gz)

Quelltext

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify pkg:npm/cacache@19.0.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/cacache@19.0.1

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:0013abca24b5c55a3ea87d128dcdab6c4fa7dc8e6a726f8aa5548a5d6c92ecd4","contract":["cacache.put stores data under a key with metadata and returns an sha512 integrity string","cacache.get and cacache.get.byDigest read back the exact stored Buffer payload and metadata","cacache.ls lists active index entries and cacache.verify checks content integrity and records lastRun","cacache.rm.entry and cacache.rm.content remove the index entry and content blob from the cache"],"goal":"verify pkg:npm/cacache@19.0.1","kind":"HOW","packages":["pkg:npm/cacache@19.0.1"],"schemaVersion":1},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/cacache@19.0.1"],"schemaVersion":1,"subject":"pkg:npm/cacache@19.0.1","verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "cacache-sample",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "cacache-sample",
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      }
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      "license": "ISC",
      "dependencies": {
        "string-width": "^5.1.2",
        "string-width-cjs": "npm:string-width@^4.2.0",
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}
package.json
{
  "name": "cacache-sample",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "cacache": "19.0.1"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/cacache@19.0.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/cacache@19.0.1"
  ]
}
src/index.mjs
import cacache from 'cacache';

export async function runCacheLifecycle(cacheDir) {
  const key = 'greeting-entry';
  const payload = Buffer.from('hello content-addressable cache', 'utf8');
  const metadata = { contentType: 'text/plain', tag: 'v1' };

  const integrity = await cacache.put(cacheDir, key, payload, { metadata });

  const retrieved = await cacache.get(cacheDir, key);
  const byDigest = await cacache.get.byDigest(cacheDir, integrity);
  const info = await cacache.get.info(cacheDir, key);
  const listing = await cacache.ls(cacheDir);

  const verifyStats = await cacache.verify(cacheDir);
  const lastVerified = await cacache.verify.lastRun(cacheDir);

  await cacache.rm.entry(cacheDir, key);
  const infoAfterEntryRm = await cacache.get.info(cacheDir, key);

  await cacache.rm.content(cacheDir, integrity);
  const hasContentAfterRm = await cacache.get.hasContent(cacheDir, integrity);

  return {
    integrity: String(integrity),
    retrievedText: retrieved.data.toString('utf8'),
    retrievedSize: retrieved.size,
    retrievedMetadata: retrieved.metadata,
    byDigestText: byDigest.toString('utf8'),
    infoKey: info.key,
    listedKeys: Object.keys(listing),
    verifiedContent: verifyStats.verifiedContent,
    totalEntries: verifyStats.totalEntries,
    lastVerifiedIsDate: lastVerified instanceof Date && !Number.isNaN(lastVerified.getTime()),
    infoAfterEntryRm,
    hasContentAfterRm
  };
}
test/contract.mjs
import assert from 'node:assert/strict';
import { rm } from 'node:fs/promises';
import { runCacheLifecycle } from '../src/index.mjs';

const cacheDir = './.cache-test-store';

await rm(cacheDir, { recursive: true, force: true });
try {
  const result = await runCacheLifecycle(cacheDir);

  assert.equal( result.integrity.startsWith('sha512-'), true );
  assert.equal( result.retrievedText, 'hello content-addressable cache' );
  assert.equal( result.retrievedSize, 31 );
  assert.deepEqual( result.retrievedMetadata, { contentType: 'text/plain', tag: 'v1' } );
  assert.equal( result.byDigestText, 'hello content-addressable cache' );
  assert.equal( result.infoKey, 'greeting-entry' );
  assert.deepEqual( result.listedKeys, ['greeting-entry'] );
  assert.equal( result.verifiedContent, 1 );
  assert.equal( result.totalEntries, 1 );
  assert.equal( result.lastVerifiedIsDate, true );
  assert.equal( result.infoAfterEntryRm, null );
  assert.equal( result.hasContentAfterRm, false );
} finally {
  await rm(cacheDir, { recursive: true, force: true });
}

Ursprungs-Seeder

anonym