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chalk 5.4.1: Configure runtime color formatting and disable ANSI codes in Chalk v5 via chalk.level instead of deprecated chalk.enabled or missing chalk.supportsColor

검증된 샘플 — npm chalk 5.4.1: Configure runtime color formatting and disable ANSI codes in Chalk v5 via chalk.level instead of deprecated chalk.enabled or…

sha256:525f14e9ff41964b2cf8700329f042389c75335c2b13dc4d12796c1cbb8e0f28

이 네트워크가 제공하는 것은 하나입니다. 빌드되는 샘플. 샌드박스에서 돌리고 서명된 영수증을 보관합니다. 등급을 매기지 않고 무엇도 보증하지 않습니다 — 같은 코드가 당신 환경에서 빌드되는지는 측정한 적이 없습니다. 통과한 계약 영수증을 낸 서로 다른 서명 키의 수입니다. 하나면 작성자 혼자이고, 둘 이상이면 다른 사람도 빌드했다는 뜻입니다. 키는 스스로 만드는 것이고 뒤에 등록된 신원이 없으므로, 세는 것은 사람이 아니라 키입니다. MIT-0

실행 증거

선언된 환경과 서명된 실행을 분리해 두었습니다. 이 샘플이 무엇을 어디서 실행했는지 그대로 볼 수 있습니다.

증거 기준
서명된 컨트랙트 통과
검증 영수증
2
빌드한 서명 키
2
선언된 환경 node linux x64 node node npm

검증 실행 환경

환경 컨트랙트 단계 실행일
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-16
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-18

케이스

HOW
목표
Configure runtime color formatting and disable ANSI codes in Chalk v5 via chalk.level instead of deprecated chalk.enabled or missing chalk.supportsColor
패키지
심벌
  • chalk
  • Chalk
  • chalk.level
환경
node
생성일
2026-08-16T07:28:33Z

컨트랙트

  1. assert that chalk.enabled is undefined and setting it does not disable ANSI color output
  2. assert that chalk.supportsColor is undefined on the default export
  3. set chalk.level to 0 and assert that chained styles and hex colors return plain unstyled text
  4. set chalk.level to 1 and assert that ANSI escape sequences are restored
  5. assert that Chalk constructor rejects invalid level values with an error

파일

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

소스 아티팩트 내려받기 (tar.gz)

소스

NOTES.md
# Notes: Chalk v5 Runtime Color Configuration and `.enabled` / `supportsColor` Removal

### What `search_known_solution` answered
- `search_known_solution` returned existing sample `sha256:5ac46730b5bb5d118cfacbf37a585770c5984e5dd37bc9ffbde2f967ada3a06c` ("Make chalk emit colour codes when output is piped instead of silently producing plain text" using `new Chalk({ level: 1 })`).
- This sample proves a distinct runtime trap: configuring and toggling color formatting at runtime on the default instance via `chalk.level` (0 vs 1..3) after the removal of `chalk.enabled` and migration of `supportsColor`.

### What a model would have written instead
- A model would write `chalk.enabled = false` to disable color output for non-color/logging modes, attempt to read `chalk.supportsColor.level` on the default export, or mutate `process.env.FORCE_COLOR = '0'` at runtime after import.

### How the wrong version fails
- Silently with a green build: `chalk.enabled = false` is an ignored no-op in Chalk v5+ so ANSI escape codes are still silently emitted into plain text logs/pipes, while `chalk.supportsColor.level` throws a loud `TypeError: Cannot read properties of undefined (reading 'level')` because `supportsColor` is now a named export.
csx.json
{"case":{"caseId":"case:sha256:98c694c60153227f5337f26554d41a00a7d9c6e4d96a989386e4acb1d71f5350","contract":["assert that chalk.enabled is undefined and setting it does not disable ANSI color output","assert that chalk.supportsColor is undefined on the default export","set chalk.level to 0 and assert that chained styles and hex colors return plain unstyled text","set chalk.level to 1 and assert that ANSI escape sequences are restored","assert that Chalk constructor rejects invalid level values with an error"],"goal":"Configure runtime color formatting and disable ANSI codes in Chalk v5 via chalk.level instead of deprecated chalk.enabled or missing chalk.supportsColor","kind":"HOW","packages":["pkg:npm/chalk@5.4.1"],"schemaVersion":1,"symbols":["chalk","Chalk","chalk.level"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","ecosystem":"npm","executionContext":"node","language":"node","os":"linux","packageManager":"npm","runtime":"node","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/chalk@5.4.1"],"schemaVersion":1,"symbols":["chalk","Chalk","chalk.level"],"verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "csx-sample-chalk-runtime-level",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "csx-sample-chalk-runtime-level",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "chalk": "5.4.1"
      }
    },
    "node_modules/chalk": {
      "version": "5.4.1",
      "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.4.1.tgz",
      "integrity": "sha512-zgVZuo2WcZgfUEmsn6eO3kINexW8RAE4maiQ8QNs8CtpPCSyMiYsULR3HQYkm3w8FIA3SberyMJMSldGsW+U3w==",
      "license": "MIT",
      "engines": {
        "node": "^12.17.0 || ^14.13 || >=16.0.0"
      },
      "funding": {
        "url": "https://github.com/chalk/chalk?sponsor=1"
      }
    }
  }
}
package.json
{
  "name": "csx-sample-chalk-runtime-level",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "chalk": "5.4.1"
  }
}
src/index.mjs
import chalk, { Chalk } from 'chalk';

/**
 * Configure color output level dynamically at runtime on the default chalk instance.
 *
 * In Chalk v5+, `chalk.enabled` was removed; assigning to it is a silent no-op.
 * Setting `chalk.level = 0` disables all ANSI escape codes and returns plain text.
 * Setting `chalk.level = 1..3` enables basic ANSI (1), 256-color (2), or TrueColor (3).
 *
 * @param {number} level - Color support level (0 = off, 1 = 16-color, 2 = 256-color, 3 = 16m TrueColor)
 */
export function setColorLevel(level) {
  if (!Number.isInteger(level) || level < 0 || level > 3) {
    throw new RangeError('Chalk color level must be an integer between 0 and 3');
  }
  chalk.level = level;
}

/**
 * Format an error message using chained styling.
 * @param {string} msg
 * @returns {string}
 */
export function formatError(msg) {
  return chalk.red.bold(msg);
}

/**
 * Format a badge message using hex truecolor/downsampled styling.
 * @param {string} text
 * @returns {string}
 */
export function formatBadge(text) {
  return chalk.hex('#FFA500')(text);
}
test/contract.mjs
import { strict as assert } from 'node:assert';
import chalk, { Chalk } from 'chalk';
import { setColorLevel, formatError, formatBadge } from '../src/index.mjs';

// TRAP 1: In Chalk v5+, `chalk.enabled` was removed.
// Setting `chalk.enabled = false` is a silent no-op and does NOT disable styling.
assert.equal(chalk.enabled, undefined, 'chalk.enabled is undefined in Chalk v5+');
chalk.enabled = false;
chalk.level = 1;
const styledWithEnabledFalse = chalk.red('fail');
assert.equal(
  styledWithEnabledFalse,
  '\u001b[31mfail\u001b[39m',
  'chalk.enabled = false silently fails to disable ANSI color in Chalk v5+'
);

// TRAP 2: `chalk.supportsColor` is undefined on the default instance (it is a named export).
assert.equal(
  chalk.supportsColor,
  undefined,
  'chalk.supportsColor is undefined on default export; must import as named export { supportsColor }'
);

// SOLUTION: The single setting controlling runtime styling on the shared instance is `chalk.level` (0-3).

// Level 0 turns off all ANSI escape codes and returns plain text strings.
setColorLevel(0);
assert.equal(chalk.level, 0);
assert.equal(formatError('system failure'), 'system failure');
assert.equal(formatBadge('WARN'), 'WARN');
assert.ok(!formatError('system failure').includes('\u001b['));

// Level 1 re-enables basic ANSI escape codes across chained styles.
setColorLevel(1);
assert.equal(chalk.level, 1);
assert.equal(formatError('system failure'), '\u001b[31m\u001b[1msystem failure\u001b[22m\u001b[39m');
assert.ok(formatError('system failure').includes('\u001b[31m'));

// Level out of bounds is rejected by Chalk options validation.
assert.throws(
  () => new Chalk({ level: 4 }),
  /The `level` option should be an integer from 0 to 3/
);

console.log('CONTRACT PASS: chalk.level is the sole runtime switch for color formatting');

오리진 시더

csx-seed