CodeSampleX

サンプル

@npmcli/config 9.0.0

検証済みサンプル — npm @npmcli/config 9.0.0. node 22 · linux debian/x64 · docker で contract を実行し、成功しました: Calling config.get() before await config.load() throws…

sha256:7a848581a968b865c0b259867bd9c81b7c5c2d51d202bb6180775bc6dd675176

このネットワークが提供するのは一つだけです。ビルドされるサンプル。サンドボックスで実行し、署名済みの受領証を保管します。等級はつけず、何も保証しません — 同じコードがあなたの環境でビルドされるかは測定していません。 合格した契約受領証を提出した異なる署名鍵の数です。1 なら作者だけ、2 以上なら他の誰かもビルドしています。鍵は自己生成で背後に登録された身元がないため、数えているのは人ではなく鍵です。 MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

証拠の基準
署名済みコントラクト合格
検証レシート
1
ビルドした署名鍵
1
宣言された環境 linux 24 · ubuntu · glibc 2.39 x64 npm

検証実行環境

環境 コントラクト ステージ 実行日
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…		 2026-10-21

ケース

HOW
ゴール
verify pkg:npm/%40npmcli/config@9.0.0
パッケージ
作成日
2026-10-21T01:54:20Z

コントラクト

  1. Calling config.get() before await config.load() throws Error('call config.load() before reading values').
  2. After await config.load(), config.loaded is true and CLI shorthands (-s -> loglevel='silent'), CLI flags (--save-exact -> true), and npm_config_* environment variables (npm_config_tag -> tag='next') resolve according to layer precedence (cli > env > default).
  3. config.find(key) returns the active layer name ('cli', 'env', or 'default') and config.isDefault(key) returns true only when no higher-priority layer overrides the default definition.
  4. config.set('tag', 'beta', 'cli') overrides the env layer, invalidates cached config.flat so config.flat.defaultTag becomes 'beta', and config.delete('tag', 'cli') restores fallback to the env layer.

ファイル

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

ソースアーティファクトをダウンロード (tar.gz)

ソース

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/%40npmcli/config@9.0.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40npmcli/config@9.0.0

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:f0d04b325318d24c7f8adf1b04eba089f6589473697869d09f6a29be7b66c6d2","contract":["Calling config.get() before await config.load() throws Error('call config.load() before reading values').","After await config.load(), config.loaded is true and CLI shorthands (-s -\u003e loglevel='silent'), CLI flags (--save-exact -\u003e true), and npm_config_* environment variables (npm_config_tag -\u003e tag='next') resolve according to layer precedence (cli \u003e env \u003e default).","config.find(key) returns the active layer name ('cli', 'env', or 'default') and config.isDefault(key) returns true only when no higher-priority layer overrides the default definition.","config.set('tag', 'beta', 'cli') overrides the env layer, invalidates cached config.flat so config.flat.defaultTag becomes 'beta', and config.delete('tag', 'cli') restores fallback to the env layer."],"goal":"verify pkg:npm/%40npmcli/config@9.0.0","kind":"HOW","packages":["pkg:npm/%40npmcli/config@9.0.0"],"schemaVersion":1},"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/%40npmcli/config@9.0.0"],"schemaVersion":1,"subject":"pkg:npm/%40npmcli/config@9.0.0","verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "sample",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample",
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      "license": "ISC",
      "dependencies": {
        "string-width": "^5.1.2",
        "string-width-cjs": "npm:string-width@^4.2.0",
        "strip-ansi": "^7.0.1",
        "strip-ansi-cjs": "npm:strip-ansi@^6.0.1",
        "wrap-ansi": "^8.1.0",
        "wrap-ansi-cjs": "npm:wrap-ansi@^7.0.0"
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      "engines": {
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    "node_modules/@npmcli/config": {
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      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
      "license": "MIT"
    },
    "node_modules/wrap-ansi-cjs/node_modules/string-width": {
      "version": "4.2.3",
      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
      "license": "MIT",
      "dependencies": {
        "emoji-regex": "^8.0.0",
        "is-fullwidth-code-point": "^3.0.0",
        "strip-ansi": "^6.0.1"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/wrap-ansi-cjs/node_modules/strip-ansi": {
      "version": "6.0.1",
      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
      "license": "MIT",
      "dependencies": {
        "ansi-regex": "^5.0.1"
      },
      "engines": {
        "node": ">=8"
      }
    }
  }
}
package.json
{
  "name": "sample",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "@npmcli/config": "9.0.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40npmcli/config@9.0.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40npmcli/config@9.0.0"
  ]
}
src/index.mjs
import Config from '@npmcli/config'
import definitionsModule from '@npmcli/config/lib/definitions/index.js'

const { definitions, shorthands, flatten } = definitionsModule

export async function createLoadedConfig({
  npmPath = process.cwd(),
  cwd = process.cwd(),
  argv = ['node', 'npm'],
  env = {},
} = {}) {
  const config = new Config({
    npmPath,
    definitions,
    shorthands,
    flatten,
    argv,
    env,
    cwd,
    excludeNpmCwd: true,
  })
  await config.load()
  return config
}

export { Config, definitions, shorthands, flatten }
test/contract.mjs
import assert from 'node:assert/strict'
import { mkdtempSync, rmSync } from 'node:fs'
import { tmpdir } from 'node:os'
import { join } from 'node:path'
import { Config, createLoadedConfig, definitions, shorthands, flatten } from '../src/index.mjs'

const tempDir = mkdtempSync(join(tmpdir(), 'npmcli-config-'))

try {
  // 1. Reading before load() throws an error
  const unloaded = new Config({
    npmPath: tempDir,
    definitions,
    shorthands,
    flatten,
    argv: ['node', 'npm'],
    env: { HOME: tempDir },
    cwd: tempDir,
  })
  assert.equal(unloaded.loaded, false)
  assert.throws(
    () => unloaded.get('tag'),
    /call config\.load\(\) before reading values/
  )

  // 2. Load configuration with CLI shorthand/flags and environment variables
  const config = await createLoadedConfig({
    npmPath: tempDir,
    cwd: tempDir,
    argv: ['node', 'npm', '-s', '--save-exact'],
    env: {
      HOME: tempDir,
      npm_config_tag: 'next',
    },
  })

  assert.equal(config.loaded, true)

  // CLI shorthand -s maps to --loglevel silent
  assert.equal(config.get('loglevel'), 'silent')
  assert.equal(config.find('loglevel'), 'cli')
  assert.equal(config.isDefault('loglevel'), false)

  // CLI boolean flag --save-exact
  assert.equal(config.get('save-exact'), true)
  assert.equal(config.find('save-exact'), 'cli')

  // Environment variable npm_config_tag maps to 'tag' in 'env' layer
  assert.equal(config.get('tag'), 'next')
  assert.equal(config.get('tag', 'env'), 'next')
  assert.equal(config.get('tag', 'default'), 'latest')
  assert.equal(config.find('tag'), 'env')
  assert.equal(config.isDefault('tag'), false)

  // Default layer value remains untouched for unset options
  assert.equal(config.isDefault('init-version'), true)
  assert.equal(config.get('init-version'), '1.0.0')
  assert.equal(config.find('init-version'), 'default')

  // 3. Mutating via set() and delete(), and inspecting flattened options
  config.set('tag', 'beta', 'cli')
  assert.equal(config.get('tag'), 'beta')
  assert.equal(config.find('tag'), 'cli')
  assert.equal(config.flat.defaultTag, 'beta')
  assert.equal(config.flat.savePrefix, '')

  config.delete('tag', 'cli')
  assert.equal(config.get('tag'), 'next')
  assert.equal(config.find('tag'), 'env')

  // 4. Validating configuration state
  assert.equal(config.validate(), true)
  assert.equal(config.valid, true)
} finally {
  rmSync(tempDir, { recursive: true, force: true })
}

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