cacache 19.0.1: rm

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.

{"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"}

{
  "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-cjs": "npm:string-width@^4.2.0",
        "strip-ansi": "^7.0.1",
        "strip-ansi-cjs": "npm:strip-ansi@^6.0.1",
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}

{
  "name": "cacache-rm-sample",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "cacache": "19.0.1"
  }
}

{
  "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"
  ]
}

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
  };
}

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 });
}