CodeSampleX

Exemple

cacache 19.0.1: rm

Échantillon vérifié pour npm cacache 19.0.1: rm. Le contrat s'est exécuté sur node 22 · linux debian/x64 · docker et a réussi.

sha256:4b7a2167a5b34883242762902a3c10ab817f596221f3b7d5ec2bcb3c96f589f9

Ce réseau offre une seule chose : un échantillon qui compile. Il l'a exécuté dans un bac à sable et conservé le reçu signé. Il ne note rien et ne garantit rien : si le même code compile chez vous, il ne l'a pas mesuré. Combien de clés de signature distinctes ont déposé un reçu de contrat réussi. Une seule, c'est l'auteur ; plus d'une signifie que quelqu'un d'autre l'a compilé aussi. Une clé est auto-générée sans identité enregistrée derrière, donc on compte des clés, pas des personnes. MIT-0

Preuves d'exécution

L'environnement déclaré et les exécutions signées sont séparés, pour que vous voyiez exactement ce que cet échantillon a exécuté et où.

Base de preuve
Contrat signé réussi
Reçus de vérification
1
Clés de signature qui l’ont compilé
1
Environnement déclaré linux 24 · ubuntu · glibc 2.39 x64 npm

Environnements des exécutions de vérification

Environnement Contrat Étapes Exécution
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

Cas

HOW
Objectif
verify cacache.rm in pkg:npm/cacache@19.0.1
Paquets
Symboles
  • cacache.rm
Créé
2026-10-17T13:17:04Z

Contrat

  1. cacache.rm and cacache.rm.entry remove a key from the index while leaving its content blob intact until removed
  2. cacache.rm.content deletes the stored content blob identified by its sha512 integrity digest
  3. cacache.rm.all clears all index and content directories from the cache

Fichiers

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

Télécharger l’artefact source (tar.gz)

Code source

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 cacache.rm in pkg:npm/cacache@19.0.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/cacache@19.0.1
Demonstrate these symbols/APIs:
  - cacache.rm

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:sha256:901c454bbbb1b05f91392e8835c55ade86eddaf2caf992c8e6c2718907b54398","contract":["cacache.rm and cacache.rm.entry remove a key from the index while leaving its content blob intact until removed","cacache.rm.content deletes the stored content blob identified by its sha512 integrity digest","cacache.rm.all clears all index and content directories from the cache"],"goal":"verify cacache.rm in pkg:npm/cacache@19.0.1","kind":"HOW","packages":["pkg:npm/cacache@19.0.1"],"schemaVersion":1,"symbols":["cacache.rm"]},"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","symbols":["cacache.rm"],"verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "cacache-rm-sample",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "cacache-rm-sample",
      "version": "1.0.0",
      "dependencies": {
        "cacache": "19.0.1"
      }
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      "license": "ISC",
      "dependencies": {
        "string-width": "^5.1.2",
        "string-width-cjs": "npm:string-width@^4.2.0",
        "strip-ansi": "^7.0.1",
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package.json
{
  "name": "cacache-rm-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 cacache.rm in pkg:npm/cacache@19.0.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/cacache@19.0.1"
  ],
  "symbols": [
    "cacache.rm"
  ]
}
src/index.mjs
import cacache from 'cacache';

export async function verifyCacacheRemoval(cacheDir) {
  const keyAlpha = 'item-alpha';
  const keyBeta = 'item-beta';
  const keyGamma = 'item-gamma';

  const integrityAlpha = await cacache.put(cacheDir, keyAlpha, Buffer.from('alpha-payload', 'utf8'));
  const integrityBeta = await cacache.put(cacheDir, keyBeta, Buffer.from('beta-payload', 'utf8'));
  const integrityGamma = await cacache.put(cacheDir, keyGamma, Buffer.from('gamma-payload', 'utf8'));

  // Remove index entry via cacache.rm(cache, key) directly (alias of cacache.rm.entry)
  await cacache.rm(cacheDir, keyAlpha);
  const alphaInfoAfterRm = await cacache.get.info(cacheDir, keyAlpha);
  const alphaContentStillPresent = await cacache.get.hasContent(cacheDir, integrityAlpha);

  // Remove content blob via cacache.rm.content(cache, integrity)
  await cacache.rm.content(cacheDir, integrityAlpha);
  const alphaContentAfterRmContent = await cacache.get.hasContent(cacheDir, integrityAlpha);

  // Remove index entry via cacache.rm.entry(cache, key)
  await cacache.rm.entry(cacheDir, keyBeta);
  const betaInfoAfterEntryRm = await cacache.get.info(cacheDir, keyBeta);

  // Remove all remaining index and content directories via cacache.rm.all(cache)
  await cacache.rm.all(cacheDir);
  const listingAfterRmAll = await cacache.ls(cacheDir);
  const gammaContentAfterRmAll = await cacache.get.hasContent(cacheDir, integrityGamma);

  return {
    alphaInfoAfterRm,
    alphaContentStillPresent: Boolean(alphaContentStillPresent),
    alphaContentAfterRmContent,
    betaInfoAfterEntryRm,
    remainingKeysAfterRmAll: Object.keys(listingAfterRmAll),
    gammaContentAfterRmAll
  };
}
test/contract.mjs
import assert from 'node:assert/strict';
import { rm } from 'node:fs/promises';
import { verifyCacacheRemoval } from '../src/index.mjs';

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

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

  assert.equal(result.alphaInfoAfterRm, null);
  assert.equal(result.alphaContentStillPresent, true);
  assert.equal(result.alphaContentAfterRmContent, false);
  assert.equal(result.betaInfoAfterEntryRm, null);
  assert.deepEqual(result.remainingKeysAfterRmAll, []);
  assert.equal(result.gammaContentAfterRmAll, false);
} finally {
  await rm(cacheDir, { recursive: true, force: true });
}

Seeder d'origine

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