CodeSampleX

サンプル

@npmcli/map-workspaces 4.0.2: mapWorkspaces, mapWorkspaces.virtual

検証済みサンプル — npm @npmcli/map-workspaces 4.0.2: mapWorkspaces, mapWorkspaces.virtual. node 22 · linux debian/x64 · docker で contract を実行し、成功しました.

sha256:7740fc4ce57c4bd28bcb32acf213c75a1f2a7e7343041636dae962e44ae9f029

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

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…		 2026-10-18

ケース

HOW
ゴール
verify pkg:npm/%40npmcli/map-workspaces@4.0.2
パッケージ
シンボル
  • mapWorkspaces
  • mapWorkspaces.virtual
環境
node 22.23
作成日
2026-10-18T08:53:07Z

コントラクト

  1. mapWorkspaces({ cwd, pkg }) resolves workspace glob patterns (both array and { packages: [...] } forms), respects negated patterns (!pattern), falls back to folder name when package.json omits name, and returns a Map<packageName, directoryPathname> in pattern declaration order
  2. mapWorkspaces rejects with Error code EDUPLICATEWORKSPACE when multiple workspace directories share the same package name
  3. mapWorkspaces rejects with TypeError code EMAPWORKSPACESPKG when opts.pkg is missing and TypeError code EWORKSPACESCONFIG when workspaces is not an Array
  4. mapWorkspaces.virtual({ cwd, lockfile }) synchronously maps workspace entries from a lockfile packages object into a Map<packageName, directoryPathname> and throws TypeError code EMAPWORKSPACESLOCKFILE when opts.lockfile is missing

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/map-workspaces@4.0.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40npmcli/map-workspaces@4.0.2

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:sha256:42f7bd5cd675a7a7d0c61d5ea414cb0000bd3a95aef8a016a207a78e1b62358d","contract":["mapWorkspaces({ cwd, pkg }) resolves workspace glob patterns (both array and { packages: [...] } forms), respects negated patterns (!pattern), falls back to folder name when package.json omits name, and returns a Map\u003cpackageName, directoryPathname\u003e in pattern declaration order","mapWorkspaces rejects with Error code EDUPLICATEWORKSPACE when multiple workspace directories share the same package name","mapWorkspaces rejects with TypeError code EMAPWORKSPACESPKG when opts.pkg is missing and TypeError code EWORKSPACESCONFIG when workspaces is not an Array","mapWorkspaces.virtual({ cwd, lockfile }) synchronously maps workspace entries from a lockfile packages object into a Map\u003cpackageName, directoryPathname\u003e and throws TypeError code EMAPWORKSPACESLOCKFILE when opts.lockfile is missing"],"goal":"verify pkg:npm/%40npmcli/map-workspaces@4.0.2","kind":"HOW","packages":["pkg:npm/%40npmcli/map-workspaces@4.0.2"],"schemaVersion":1,"symbols":["mapWorkspaces","mapWorkspaces.virtual"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9","runtime":"node","runtimeVersion":"22.23","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40npmcli/map-workspaces@4.0.2"],"schemaVersion":1,"subject":"pkg:npm/%40npmcli/map-workspaces@4.0.2","symbols":["mapWorkspaces","mapWorkspaces.virtual"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "verify-map-workspaces",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "@npmcli/map-workspaces": "4.0.2"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40npmcli/map-workspaces@4.0.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40npmcli/map-workspaces@4.0.2"
  ]
}
src/index.mjs
import mapWorkspaces from '@npmcli/map-workspaces';

export async function discoverWorkspaces(cwd, pkg, ignore = []) {
  return mapWorkspaces({ cwd, pkg, ignore });
}

export function discoverVirtualWorkspaces(cwd, lockfile) {
  return mapWorkspaces.virtual({ cwd, lockfile });
}

export { mapWorkspaces };
test/contract.mjs
import assert from 'node:assert/strict';
import fs from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import mapWorkspaces from '@npmcli/map-workspaces';
import { discoverWorkspaces, discoverVirtualWorkspaces } from '../src/index.mjs';

const tmpRoot = await fs.mkdtemp(path.join(os.tmpdir(), 'map-ws-test-'));

try {
  // 1. Setup workspace directories on disk
  const pkgADir = path.join(tmpRoot, 'packages', 'pkg-a');
  const pkgBDir = path.join(tmpRoot, 'packages', 'pkg-b');
  const pkgIgnoredDir = path.join(tmpRoot, 'packages', 'pkg-ignored');
  const unnamedDir = path.join(tmpRoot, 'plugins', 'my-plugin');

  await fs.mkdir(pkgADir, { recursive: true });
  await fs.mkdir(pkgBDir, { recursive: true });
  await fs.mkdir(pkgIgnoredDir, { recursive: true });
  await fs.mkdir(unnamedDir, { recursive: true });

  await fs.writeFile(
    path.join(pkgADir, 'package.json'),
    JSON.stringify({ name: '@scope/pkg-a', version: '1.0.0' })
  );
  await fs.writeFile(
    path.join(pkgBDir, 'package.json'),
    JSON.stringify({ name: 'pkg-b', version: '1.0.0' })
  );
  await fs.writeFile(
    path.join(pkgIgnoredDir, 'package.json'),
    JSON.stringify({ name: 'pkg-ignored', version: '1.0.0' })
  );
  // Unnamed package derives its name from folder via @npmcli/name-from-folder
  await fs.writeFile(
    path.join(unnamedDir, 'package.json'),
    JSON.stringify({ version: '1.0.0' })
  );

  // 2. Basic workspace discovery with array config + negated pattern + unnamed package fallback
  const map1 = await discoverWorkspaces(tmpRoot, {
    workspaces: ['packages/*', '!packages/pkg-ignored', 'plugins/*']
  });
  assert.ok(map1 instanceof Map);
  assert.deepEqual(
    Array.from(map1.entries()),
    [
      ['@scope/pkg-a', pkgADir],
      ['pkg-b', pkgBDir],
      ['my-plugin', unnamedDir]
    ]
  );

  // 3. Object-style `{ packages: [...] }` workspaces declaration
  const map2 = await mapWorkspaces({
    cwd: tmpRoot,
    pkg: {
      workspaces: {
        packages: ['plugins/*', 'packages/pkg-a']
      }
    }
  });
  assert.deepEqual(
    Array.from(map2.keys()),
    ['my-plugin', '@scope/pkg-a']
  );

  // 4. Empty workspaces returns an empty Map
  const emptyMap = await mapWorkspaces({
    cwd: tmpRoot,
    pkg: {}
  });
  assert.equal(emptyMap.size, 0);

  // 5. Duplicate workspace package name throws EDUPLICATEWORKSPACE
  const dupDir = path.join(tmpRoot, 'dup', 'pkg-b-copy');
  await fs.mkdir(dupDir, { recursive: true });
  await fs.writeFile(
    path.join(dupDir, 'package.json'),
    JSON.stringify({ name: 'pkg-b', version: '2.0.0' })
  );
  await assert.rejects(
    () =>
      mapWorkspaces({
        cwd: tmpRoot,
        pkg: { workspaces: ['packages/pkg-b', 'dup/*'] }
      }),
    (err) => err instanceof Error && err.code === 'EDUPLICATEWORKSPACE'
  );

  // 6. Error codes for missing pkg or invalid workspaces config
  await assert.rejects(
    () => mapWorkspaces({ cwd: tmpRoot }),
    (err) => err instanceof TypeError && err.code === 'EMAPWORKSPACESPKG'
  );
  await assert.rejects(
    () => mapWorkspaces({ cwd: tmpRoot, pkg: { workspaces: 'invalid-string' } }),
    (err) => err instanceof TypeError && err.code === 'EWORKSPACESCONFIG'
  );

  // 7. Virtual workspace mapping from lockfile object without filesystem I/O
  const virtualMap = discoverVirtualWorkspaces(tmpRoot, {
    packages: {
      '': {
        name: 'root',
        workspaces: ['packages/*', '!packages/pkg-ignored']
      },
      'packages/pkg-a': {
        name: '@scope/pkg-a',
        version: '1.0.0'
      },
      'packages/pkg-b': {
        version: '1.0.0'
      },
      'packages/pkg-ignored': {
        name: 'pkg-ignored',
        version: '1.0.0'
      }
    }
  });
  assert.ok(virtualMap instanceof Map);
  assert.deepEqual(
    Array.from(virtualMap.entries()),
    [
      ['@scope/pkg-a', path.join(tmpRoot, 'packages/pkg-a')],
      ['pkg-b', path.join(tmpRoot, 'packages/pkg-b')]
    ]
  );

  // 8. Missing lockfile in mapWorkspaces.virtual throws EMAPWORKSPACESLOCKFILE
  assert.throws(
    () => mapWorkspaces.virtual({ cwd: tmpRoot }),
    (err) => err instanceof TypeError && err.code === 'EMAPWORKSPACESLOCKFILE'
  );
} finally {
  await fs.rm(tmpRoot, { recursive: true, force: true });
}

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