CodeSampleX

Sample

vite 5.4.14: mergeConfig

Verified sample for npm vite 5.4.14: mergeConfig. The contract ran on node 22 · linux debian/x64 · docker and passed: mergeConfig is exported as a named…

sha256:38c6af8dc1256ce7711f292f895240ca1112eb565047c6d24fb861baef6c6dbb

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
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

Case

HOW
Goal
verify pkg:npm/vite@5.4.14
Packages
Symbols
  • vite.mergeConfig
Environment
node 22.23.2
Created
2026-09-07T02:10:21Z

Contract

  1. mergeConfig is exported as a named function from vite
  2. mergeConfig deeply merges nested configuration objects without mutating input configurations
  3. mergeConfig overrides primitive configuration values with values from overrides
  4. mergeConfig concatenates plugin array configurations preserving order from both defaults and overrides
  5. mergeConfig merges object alias configurations with overrides taking precedence over defaults
  6. mergeConfig merges array alias configurations by prepending override entries before default entries
  7. mergeConfig merges define replacement configurations overriding common keys while preserving distinct keys

Files

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

Download the source artifact (tar.gz)

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 pkg:npm/vite@5.4.14
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/vite@5.4.14
Demonstrate these symbols/APIs:
  - vite.mergeConfig

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:sha256:55196b3de9e582508e3f59454186a8b2f1e14054b102522e70fec17776dee095","contract":["mergeConfig is exported as a named function from vite","mergeConfig deeply merges nested configuration objects without mutating input configurations","mergeConfig overrides primitive configuration values with values from overrides","mergeConfig concatenates plugin array configurations preserving order from both defaults and overrides","mergeConfig merges object alias configurations with overrides taking precedence over defaults","mergeConfig merges array alias configurations by prepending override entries before default entries","mergeConfig merges define replacement configurations overriding common keys while preserving distinct keys"],"goal":"verify pkg:npm/vite@5.4.14","kind":"HOW","packages":["pkg:npm/vite@5.4.14"],"schemaVersion":1,"symbols":["vite.mergeConfig"]},"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","symbols":["vite.mergeConfig"],"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"
  ],
  "symbols": [
    "vite.mergeConfig"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { mergeConfig } from 'vite';

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

  // 2. mergeConfig deeply merges nested configuration objects without mutating input configurations
  const defaultServer = { server: { port: 3000, host: 'localhost' } };
  const overrideServer = { server: { port: 8080, open: true } };
  const mergedServer = mergeConfig(defaultServer, overrideServer);
  assert.deepEqual(mergedServer.server, { port: 8080, host: 'localhost', open: true });
  assert.equal(defaultServer.server.port, 3000);
  assert.equal(defaultServer.server.open, undefined);
  assert.equal(overrideServer.server.host, undefined);

  // 3. mergeConfig overrides primitive configuration values with values from overrides
  const defaultPrimitives = { base: './', mode: 'development', root: '/app' };
  const overridePrimitives = { base: '/dist/' };
  const mergedPrimitives = mergeConfig(defaultPrimitives, overridePrimitives);
  assert.equal(mergedPrimitives.base, '/dist/');
  assert.equal(mergedPrimitives.mode, 'development');
  assert.equal(mergedPrimitives.root, '/app');

  // 4. mergeConfig concatenates plugin array configurations preserving order from both defaults and overrides
  const pluginA = { name: 'plugin-a' };
  const pluginB = { name: 'plugin-b' };
  const defaultPlugins = { plugins: [pluginA] };
  const overridePlugins = { plugins: [pluginB] };
  const mergedPlugins = mergeConfig(defaultPlugins, overridePlugins);
  assert.equal(Array.isArray(mergedPlugins.plugins), true);
  assert.equal(mergedPlugins.plugins.length, 2);
  assert.equal(mergedPlugins.plugins[0], pluginA);
  assert.equal(mergedPlugins.plugins[1], pluginB);

  // 5. mergeConfig merges object alias configurations with overrides taking precedence over defaults
  const defaultObjAlias = { resolve: { alias: { '@': '/src', utils: '/src/utils' } } };
  const overrideObjAlias = { resolve: { alias: { '@components': '/src/components', '@': '/src/override' } } };
  const mergedObjAlias = mergeConfig(defaultObjAlias, overrideObjAlias);
  assert.deepEqual(mergedObjAlias.resolve.alias, {
    '@': '/src/override',
    utils: '/src/utils',
    '@components': '/src/components'
  });

  // 6. mergeConfig merges array alias configurations by prepending override entries before default entries
  const defaultArrAlias = { resolve: { alias: [{ find: '@', replacement: '/src' }] } };
  const overrideArrAlias = { resolve: { alias: [{ find: 'utils', replacement: '/src/utils' }] } };
  const mergedArrAlias = mergeConfig(defaultArrAlias, overrideArrAlias);
  assert.deepEqual(mergedArrAlias.resolve.alias, [
    { find: 'utils', replacement: '/src/utils' },
    { find: '@', replacement: '/src' }
  ]);

  // 7. mergeConfig merges define replacement configurations overriding common keys while preserving distinct keys
  const defaultDefine = { define: { __APP_VERSION__: '"1.0.0"', __FEATURE_X__: 'true' } };
  const overrideDefine = { define: { __FEATURE_X__: 'false', __BUILD_TIME__: '"2026-09-07"' } };
  const mergedDefine = mergeConfig(defaultDefine, overrideDefine);
  assert.deepEqual(mergedDefine.define, {
    __APP_VERSION__: '"1.0.0"',
    __FEATURE_X__: 'false',
    __BUILD_TIME__: '"2026-09-07"'
  });
}

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

Origin Seeder

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