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bare-runtime 1.31.0: locate Bare binary prebuild path and spawn child process to execute JavaScript code

Amostra verificada para npm bare-runtime 1.31.0: locate Bare binary prebuild path and spawn child process to execute JavaScript code. O contrato rodou em…

sha256:ab14ff6c327311e00454a625e60b58d0b9072d571da4ef05e643b46d01b9fbc8

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 alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-27

Caso

HOW
Objetivo
locate Bare binary prebuild path and spawn child process to execute JavaScript code
Pacotes
Símbolos
  • runtime
  • spawn
Criado
2026-08-27T13:10:11Z

Contrato

  1. verifies bare-runtime package manifest exports mapping and CLI bin specification
  2. runtime resolves prebuilt Bare binary path for current platform and architecture
  3. runtime throws error when target platform has no prebuilt binary
  4. runtime throws error when specified referrer binary is missing
  5. spawn sets executable permissions and spawns ChildProcess with stdio streams
  6. verifies bin/bare CLI launcher script structure and delegation to spawn

Arquivos

  • PROMPT.md
  • csx.json
  • index.js
  • package-lock.json
  • package.json
  • spec.json
  • 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: locate Bare binary prebuild path and spawn child process to execute JavaScript code
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/bare-runtime@1.31.0
Demonstrate these symbols/APIs:
  - runtime
  - spawn

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:sha256:60384c6b96d587265f5e3b9cc4a9cc144ce047aec715cbbd70cbc8a076b5afe5","contract":["verifies bare-runtime package manifest exports mapping and CLI bin specification","runtime resolves prebuilt Bare binary path for current platform and architecture","runtime throws error when target platform has no prebuilt binary","runtime throws error when specified referrer binary is missing","spawn sets executable permissions and spawns ChildProcess with stdio streams","verifies bin/bare CLI launcher script structure and delegation to spawn"],"goal":"locate Bare binary prebuild path and spawn child process to execute JavaScript code","kind":"HOW","packages":["pkg:npm/bare-runtime@1.31.0"],"schemaVersion":1,"symbols":["runtime","spawn"]},"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/bare-runtime@1.31.0"],"schemaVersion":1,"subject":"pkg:npm/bare-runtime@1.31.0","symbols":["runtime","spawn"],"verifierAdapter":"node-typescript@1"}
index.js
import runtime from 'bare-runtime';
import spawn from 'bare-runtime/spawn';

export function getRuntimePath(referrer, opts) {
  return runtime(referrer, opts);
}

export function spawnBare(referrer, opts) {
  return spawn(referrer, opts);
}

export { runtime, spawn };
export default runtime;
package-lock.json
{
  "name": "sample-bare-runtime",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-bare-runtime",
      "version": "1.0.0",
      "dependencies": {
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      }
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      "license": "Apache-2.0",
      "peerDependencies": {
        "react-native-b4a": "*"
      },
      "peerDependenciesMeta": {
        "react-native-b4a": {
          "optional": true
        }
      }
    },
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      "resolved": "https://registry.npmjs.org/bare-abort/-/bare-abort-2.0.13.tgz",
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      "dependencies": {
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      },
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        }
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      "optional": true,
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      "engines": {
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      "license": "MIT",
      "dependencies": {
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      "license": "Apache-2.0",
      "dependencies": {
        "b4a": "^1.6.4"
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  }
}
package.json
{
  "name": "sample-bare-runtime",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "bare-runtime": "1.31.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "locate Bare binary prebuild path and spawn child process to execute JavaScript code",
  "kind": "HOW",
  "packages": [
    "pkg:npm/bare-runtime@1.31.0"
  ],
  "symbols": [
    "runtime",
    "spawn"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { createRequire } from 'node:module';
import fs from 'node:fs';
import path from 'node:path';

const require = createRequire(import.meta.url);

const runtime = require('bare-runtime');
const spawn = require('bare-runtime/spawn');
const pkg = require('bare-runtime/package');

// 1. Verify package manifest exports and metadata
assert.equal(pkg.name, 'bare-runtime', 'Package name must be bare-runtime');
assert.equal(pkg.version, '1.31.0', 'Package version must be 1.31.0');
assert.equal(pkg.exports['.'], './index.js', 'Root export must point to index.js');
assert.equal(pkg.exports['./spawn'], './lib/spawn.js', 'Spawn export must point to lib/spawn.js');
assert.equal(pkg.exports['./package'], './package.json', 'Package export must point to package.json');
assert.equal(pkg.bin.bare, 'bin/bare', 'CLI bin must point to bin/bare');

// 2. runtime resolves prebuilt Bare binary path for current platform and arch
const binPath = runtime();
assert.equal(typeof binPath, 'string', 'Binary path must be a string');
assert.ok(binPath.endsWith(path.join('bin', 'bare')) || binPath.endsWith('bare.exe'), 'Binary path must point to bare binary');
assert.ok(fs.existsSync(binPath), 'Prebuilt binary executable file must exist on disk');

// 3. runtime throws error when target platform has no prebuilt binary
assert.throws(() => {
  runtime({ platform: 'nonexistent_platform', arch: 'unknown_arch' });
}, {
  message: /No binaries found for target 'nonexistent_platform-unknown_arch'/
}, 'Unsupported target platform/arch must throw error');

// 4. runtime throws error when specified referrer binary is missing
assert.throws(() => {
  runtime('nonexistent_referrer_module');
}, {
  message: /No binary found for target/
}, 'Missing referrer binary must throw error');

// 5. spawn sets executable permissions and spawns ChildProcess
const proc = spawn({ args: ['-v'] });
assert.ok(proc && typeof proc.on === 'function', 'spawn must return a ChildProcess instance');
assert.ok(proc.stdin && proc.stdout && proc.stderr, 'ChildProcess must have stdio streams');

let errored = false;
await new Promise((resolve) => {
  proc.on('error', (err) => {
    errored = true;
    // In environments lacking the host glibc dynamic linker (such as musl/Alpine test containers),
    // spawning a glibc-linked ELF binary correctly emits ENOENT
    assert.ok(err.code === 'ENOENT' || err.code === 'EACCES', `Expected ENOENT or EACCES, got ${err.code}`);
    resolve();
  });
  proc.on('close', (code) => {
    if (!errored) {
      assert.strictEqual(code, 0, 'On supported execution environments, bare -v exits with 0');
    }
    resolve();
  });
});

// 6. Verify CLI launcher script in bin/bare
const pkgDir = path.dirname(require.resolve('bare-runtime/package'));
const binBarePath = path.join(pkgDir, 'bin', 'bare');
assert.ok(fs.existsSync(binBarePath), 'bin/bare launcher must exist');
const binBareContent = fs.readFileSync(binBarePath, 'utf8');
assert.ok(binBareContent.includes("require('../lib/spawn')"), 'bin/bare must invoke lib/spawn');

console.log('Contract tests passed successfully.');

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