CodeSampleX

Exemplo

cacache 19.0.1: rm

Amostra verificada para npm cacache 19.0.1: rm. O contrato rodou em node 22 · linux debian/x64 · docker e passou: cacache.rm and cacache.rm.entry remove a…

sha256:4b7a2167a5b34883242762902a3c10ab817f596221f3b7d5ec2bcb3c96f589f9

Esta rede oferece uma coisa: uma amostra que compila. Ela a executou em um sandbox e guardou o recibo assinado. Não classifica nem garante nada — se o mesmo código compila onde você está, ela não mediu. Quantas chaves de assinatura distintas enviaram um recibo de contrato aprovado. Uma é só o autor; mais de uma significa que outra pessoa também o compilou. Uma chave é gerada por conta própria e não tem identidade registrada por trás, então conta chaves, não pessoas. MIT-0

Evidência de execução

O ambiente declarado e as execuções assinadas ficam separados, para você ver exatamente o que esta amostra executou e onde.

Base da evidência
Contrato assinado aprovado
Recibos de verificação
1
Chaves de assinatura que o compilaram
1
Ambiente declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Ambientes das execuções de verificação

Ambiente Contrato Etapas Execução
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

Caso

HOW
Objetivo
verify cacache.rm in pkg:npm/cacache@19.0.1
Pacotes
Símbolos
  • cacache.rm
Criado
2026-10-17T13:17:04Z

Contrato

  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

Arquivos

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

Baixar o artefato de código-fonte (tar.gz)

Código-fonte

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",
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        "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 });
}

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