CodeSampleX

示例

@puppeteer/browsers 2.8.0: resolve build id and compute executable path with @puppeteer/browsers

已验证示例 — npm @puppeteer/browsers 2.8.0: resolve build id and compute executable path with @puppeteer/browsers. contract 在 node 22 · linux alpine/x64 · docker…

sha256:883049150ded59e8319c796e262d3736814949bd5e64d5a6dd25babd06e05db5

本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。 提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。 MIT-0

执行证据

声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。

证据依据
签名契约通过
验证回执
1
构建过它的签名密钥
1
声明的环境 linux 24 · ubuntu · glibc 2.39 x64 npm

验证运行环境

环境 契约 阶段 运行日期
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-23

案例

HOW
目标
resolve build id and compute executable path with @puppeteer/browsers
包
符号
  • Browser
  • BrowserPlatform
  • computeExecutablePath
  • detectBrowserPlatform
  • resolveBuildId
创建时间
2026-08-23T15:50:59Z

契约

  1. assert Browser and BrowserPlatform define valid identifiers for browsers and platforms
  2. assert detectBrowserPlatform identifies the current execution platform
  3. assert computeExecutablePath calculates correct relative executable paths for Chrome, Firefox, and ChromeDriver across platforms
  4. assert resolveBuildId resolves build and version identifiers offline without network requests

文件

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

下载源代码构件 (tar.gz)

源代码

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: resolve build id and compute executable path with @puppeteer/browsers
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40puppeteer/browsers@2.8.0
Demonstrate these symbols/APIs:
  - Browser
  - BrowserPlatform
  - computeExecutablePath
  - detectBrowserPlatform
  - resolveBuildId

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:sha256:3e582f8807dbca5bc7469050ecef64310cefc78708ddac8c62ead6c971348719","contract":["assert Browser and BrowserPlatform define valid identifiers for browsers and platforms","assert detectBrowserPlatform identifies the current execution platform","assert computeExecutablePath calculates correct relative executable paths for Chrome, Firefox, and ChromeDriver across platforms","assert resolveBuildId resolves build and version identifiers offline without network requests"],"goal":"resolve build id and compute executable path with @puppeteer/browsers","kind":"HOW","packages":["pkg:npm/%40puppeteer/browsers@2.8.0"],"schemaVersion":1,"symbols":["Browser","BrowserPlatform","computeExecutablePath","detectBrowserPlatform","resolveBuildId"]},"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/%40puppeteer/browsers@2.8.0"],"schemaVersion":1,"subject":"pkg:npm/%40puppeteer/browsers@2.8.0","symbols":["Browser","BrowserPlatform","computeExecutablePath","detectBrowserPlatform","resolveBuildId"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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  "name": "sample-puppeteer-browsers",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-puppeteer-browsers",
      "version": "1.0.0",
      "license": "ISC",
      "dependencies": {
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      }
    },
    "node_modules/@puppeteer/browsers": {
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      "resolved": "https://registry.npmjs.org/@puppeteer/browsers/-/browsers-2.8.0.tgz",
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        "semver": "^7.7.1",
        "tar-fs": "^3.0.8",
        "yargs": "^17.7.2"
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      },
      "engines": {
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    },
    "node_modules/@tootallnate/quickjs-emscripten": {
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package.json
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spec.json
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  "goal": "resolve build id and compute executable path with @puppeteer/browsers",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40puppeteer/browsers@2.8.0"
  ],
  "symbols": [
    "Browser",
    "BrowserPlatform",
    "computeExecutablePath",
    "detectBrowserPlatform",
    "resolveBuildId"
  ]
}
test/contract.mjs
import assert from "node:assert/strict";
import {
  Browser,
  BrowserPlatform,
  computeExecutablePath,
  detectBrowserPlatform,
  resolveBuildId,
} from "@puppeteer/browsers";

// Contract 1: Browser and BrowserPlatform define valid identifiers for browsers and platforms
assert.equal(Browser.CHROME, "chrome");
assert.equal(Browser.FIREFOX, "firefox");
assert.equal(Browser.CHROMIUM, "chromium");
assert.equal(Browser.CHROMEDRIVER, "chromedriver");
assert.equal(Browser.CHROMEHEADLESSSHELL, "chrome-headless-shell");

assert.equal(BrowserPlatform.LINUX, "linux");
assert.equal(BrowserPlatform.LINUX_ARM, "linux_arm");
assert.equal(BrowserPlatform.MAC, "mac");
assert.equal(BrowserPlatform.MAC_ARM, "mac_arm");
assert.equal(BrowserPlatform.WIN32, "win32");
assert.equal(BrowserPlatform.WIN64, "win64");

// Contract 2: detectBrowserPlatform identifies the current execution platform
const currentPlatform = detectBrowserPlatform();
assert.ok(typeof currentPlatform === "string");
assert.ok(Object.values(BrowserPlatform).includes(currentPlatform));

// Contract 3: computeExecutablePath calculates correct relative executable paths for Chrome, Firefox, and ChromeDriver across platforms
const chromeLinuxPath = computeExecutablePath({
  browser: Browser.CHROME,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  chromeLinuxPath,
  "local-cache/chrome/linux-123.0.6312.86/chrome-linux64/chrome"
);

const chromeWinPath = computeExecutablePath({
  browser: Browser.CHROME,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.WIN64,
});
assert.equal(
  chromeWinPath,
  "local-cache/chrome/win64-123.0.6312.86/chrome-win64/chrome.exe"
);

const firefoxLinuxPath = computeExecutablePath({
  browser: Browser.FIREFOX,
  buildId: "125.0",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  firefoxLinuxPath,
  "local-cache/firefox/linux-125.0/firefox/firefox"
);

const driverLinuxPath = computeExecutablePath({
  browser: Browser.CHROMEDRIVER,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  driverLinuxPath,
  "local-cache/chromedriver/linux-123.0.6312.86/chromedriver-linux64/chromedriver"
);

const headlessShellLinuxPath = computeExecutablePath({
  browser: Browser.CHROMEHEADLESSSHELL,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  headlessShellLinuxPath,
  "local-cache/chrome-headless-shell/linux-123.0.6312.86/chrome-headless-shell-linux64/chrome-headless-shell"
);

// Contract 4: resolveBuildId resolves build and version identifiers offline without network requests
const resolvedFirefox = await resolveBuildId(
  Browser.FIREFOX,
  BrowserPlatform.LINUX,
  "125.0"
);
assert.equal(resolvedFirefox, "125.0");

const resolvedChromium = await resolveBuildId(
  Browser.CHROMIUM,
  BrowserPlatform.LINUX,
  "1234567"
);
assert.equal(resolvedChromium, "1234567");

const resolvedChrome = await resolveBuildId(
  Browser.CHROME,
  BrowserPlatform.LINUX,
  "123.0.6312.86"
);
assert.equal(resolvedChrome, "123.0.6312.86");

console.log("Contract verified: all assertions passed.");

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