Exemplo

vite 5.4.14

Amostra verificada para npm vite 5.4.14. O contrato rodou em node 22 · linux debian/x64 · docker e passou: loadEnv is exported as a named function from vite

sha256:d9293fa7bd3c8937c74247c7e368766c6e2ace624c3232f25c58d009c1ad8de5

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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…	2026-09-07

Caso

HOW

Objetivo: verify pkg:npm/vite@5.4.14
Pacotes: vite 5.4.14
Ambiente: node 22.23.2
Criado: 2026-09-07T02:05:35Z

Contrato

loadEnv is exported as a named function from vite
loadEnv loads mode-specific environment variables with default VITE_ prefix from .env files
loadEnv overrides base .env values with mode-specific .env.[mode] configurations
loadEnv prioritizes .env.[mode].local overrides over un-suffixed mode environment files
loadEnv filters environment variables using single custom prefix or array of prefixes
loadEnv loads all variables without filtering when prefix is configured as empty string
loadEnv returns an empty object when target directory contains no env files

Arquivos

PROMPT.md
csx.json
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: verify pkg:npm/vite@5.4.14
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/vite@5.4.14

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:bcd62d39575132b4fcea274fd168352ad6e6a1efeaa95f761607061053bb283b","contract":["loadEnv is exported as a named function from vite","loadEnv loads mode-specific environment variables with default VITE_ prefix from .env files","loadEnv overrides base .env values with mode-specific .env.[mode] configurations","loadEnv prioritizes .env.[mode].local overrides over un-suffixed mode environment files","loadEnv filters environment variables using single custom prefix or array of prefixes","loadEnv loads all variables without filtering when prefix is configured as empty string","loadEnv returns an empty object when target directory contains no env files"],"goal":"verify pkg:npm/vite@5.4.14","kind":"HOW","packages":["pkg:npm/vite@5.4.14"],"schemaVersion":1},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/vite@5.4.14"],"schemaVersion":1,"subject":"pkg:npm/vite@5.4.14","verifierAdapter":"node-typescript@1"}

package-lock.json

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}

package.json

{
  "name": "sample-vite",
  "version": "1.0.0",
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "vite": "5.4.14"
  }
}

spec.json

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/vite@5.4.14",
  "kind": "HOW",
  "packages": [
    "pkg:npm/vite@5.4.14"
  ]
}

test/contract.mjs

import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { loadEnv } from 'vite';

const __dirname = path.dirname(fileURLToPath(import.meta.url));
const fixtureDir = path.resolve(__dirname, 'fixtures');

function setupFixtures() {
  fs.rmSync(fixtureDir, { recursive: true, force: true });
  fs.mkdirSync(fixtureDir, { recursive: true });

  // Base .env
  fs.writeFileSync(
    path.join(fixtureDir, '.env'),
    [
      'VITE_APP_NAME=SampleVite',
      'VITE_API_URL=https://example.com/api',
      'CUSTOM_API_KEY=custom-key-xyz',
      'UNPREFIXED_SECRET=secret-value'
    ].join('\n')
  );

  // Mode-specific .env.staging
  fs.writeFileSync(
    path.join(fixtureDir, '.env.staging'),
    [
      'VITE_API_URL=https://staging.example.com/api',
      'VITE_STAGING_MODE=true'
    ].join('\n')
  );

  // Local override .env.staging.local
  fs.writeFileSync(
    path.join(fixtureDir, '.env.staging.local'),
    [
      'VITE_API_URL=https://staging-local.example.com/api'
    ].join('\n')
  );
}

function cleanupFixtures() {
  if (fs.existsSync(fixtureDir)) {
    fs.rmSync(fixtureDir, { recursive: true, force: true });
  }
}

async function testContract() {
  setupFixtures();
  try {
    // 1. loadEnv is exported as a named function from vite
    assert.equal(typeof loadEnv, 'function');
    assert.equal(loadEnv.name, 'loadEnv');

    // 2. loadEnv loads mode-specific environment variables with default VITE_ prefix from .env files
    const defaultEnv = loadEnv('development', fixtureDir);
    assert.equal(defaultEnv.VITE_APP_NAME, 'SampleVite');
    assert.equal(defaultEnv.VITE_API_URL, 'https://example.com/api');
    assert.equal(defaultEnv.CUSTOM_API_KEY, undefined);
    assert.equal(defaultEnv.UNPREFIXED_SECRET, undefined);

    // 3. loadEnv overrides base .env values with mode-specific .env.[mode] configurations
    const stagingEnv = loadEnv('staging', fixtureDir);
    assert.equal(stagingEnv.VITE_APP_NAME, 'SampleVite');
    assert.equal(stagingEnv.VITE_STAGING_MODE, 'true');

    // 4. loadEnv prioritizes .env.[mode].local overrides over un-suffixed mode environment files
    assert.equal(stagingEnv.VITE_API_URL, 'https://staging-local.example.com/api');

    // 5. loadEnv filters environment variables using single custom prefix or array of prefixes
    const customSinglePrefix = loadEnv('development', fixtureDir, 'CUSTOM_');
    assert.equal(customSinglePrefix.CUSTOM_API_KEY, 'custom-key-xyz');
    assert.equal(customSinglePrefix.VITE_APP_NAME, undefined);

    const multiplePrefixes = loadEnv('development', fixtureDir, ['VITE_', 'CUSTOM_']);
    assert.equal(multiplePrefixes.VITE_APP_NAME, 'SampleVite');
    assert.equal(multiplePrefixes.CUSTOM_API_KEY, 'custom-key-xyz');
    assert.equal(multiplePrefixes.UNPREFIXED_SECRET, undefined);

    // 6. loadEnv loads all variables without filtering when prefix is configured as empty string
    const allEnv = loadEnv('development', fixtureDir, '');
    assert.equal(allEnv.VITE_APP_NAME, 'SampleVite');
    assert.equal(allEnv.CUSTOM_API_KEY, 'custom-key-xyz');
    assert.equal(allEnv.UNPREFIXED_SECRET, 'secret-value');

    // 7. loadEnv returns an empty object when target directory contains no env files
    const emptyDir = path.resolve(__dirname, 'empty-test-dir');
    fs.mkdirSync(emptyDir, { recursive: true });
    try {
      const emptyResult = loadEnv('development', emptyDir);
      assert.deepEqual(emptyResult, {});
    } finally {
      fs.rmdirSync(emptyDir);
    }
  } finally {
    cleanupFixtures();
  }
}

testContract().catch((err) => {
  console.error('Contract test failed:', err);
  process.exit(1);
});

Seeder de origem

anônimo