electron-publish 25.1.7: Publisher

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 Publisher in pkg:npm/electron-publish@25.1.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/electron-publish@25.1.7
Demonstrate these symbols/APIs:
  - Publisher

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.

{"case":{"caseId":"case:sha256:773f34f0872fc4a38a1c79b15ef7f53b79c2297f2b485091ae25268543716412","contract":["Publisher provides an extensible base class for artifact publishing with providerName and upload methods","HttpPublisher handles artifact uploads via doUpload with support for in-memory buffers and file stat sizing","HttpPublisher uses safeArtifactName when configured and falls back to target file basename","getCiTag parses CI environment tags or returns null when no tag environment variable is set"],"goal":"verify Publisher in pkg:npm/electron-publish@25.1.7","kind":"HOW","packages":["pkg:npm/electron-publish@25.1.7"],"schemaVersion":1,"symbols":["Publisher"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/electron-publish@25.1.7"],"schemaVersion":1,"subject":"pkg:npm/electron-publish@25.1.7","symbols":["Publisher"],"verifierAdapter":"node-typescript@1"}

import { Publisher, HttpPublisher, getCiTag } from 'electron-publish';
import { CancellationToken } from 'builder-util-runtime';

/**
 * Creates a minimal PublishContext.
 * @param {object} [options]
 * @returns {import('electron-publish').PublishContext}
 */
export function createPublishContext(options = {}) {
  return {
    cancellationToken: options.cancellationToken || new CancellationToken(),
    progress: options.progress || null
  };
}

/**
 * Custom memory publisher extending the base Publisher.
 */
export class CustomMemoryPublisher extends Publisher {
  /**
   * @param {import('electron-publish').PublishContext} context
   */
  constructor(context) {
    super(context);
    this.records = [];
  }

  get providerName() {
    return 'custom';
  }

  /**
   * @param {import('electron-publish').UploadTask} task
   */
  async upload(task) {
    const record = {
      file: task.file,
      arch: task.arch ?? null,
      safeArtifactName: task.safeArtifactName ?? null,
      hasContent: Boolean(task.fileContent),
      provider: this.providerName
    };
    this.records.push(record);
    return record;
  }

  toString() {
    return 'CustomMemoryPublisher';
  }
}

/**
 * Mock HTTP publisher extending HttpPublisher to capture doUpload calls.
 */
export class MockHttpPublisher extends HttpPublisher {
  /**
   * @param {import('electron-publish').PublishContext} context
   * @param {boolean} [useSafeArtifactName]
   */
  constructor(context, useSafeArtifactName = false) {
    super(context, useSafeArtifactName);
    this.uploads = [];
  }

  get providerName() {
    return 'custom';
  }

  /**
   * @param {string} fileName
   * @param {number} arch
   * @param {number} dataLength
   * @param {function} requestProcessor
   * @param {string} file
   */
  async doUpload(fileName, arch, dataLength, requestProcessor, file) {
    const item = {
      fileName,
      arch,
      dataLength,
      file
    };
    this.uploads.push(item);
    return item;
  }

  toString() {
    return 'MockHttpPublisher';
  }
}

export { Publisher, HttpPublisher, getCiTag };

{
  "name": "sample",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample",
      "version": "1.0.0",
      "dependencies": {
        "electron-publish": "25.1.7"
      }
    },
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      "license": "MIT",
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{
  "name": "sample",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "dependencies": {
    "electron-publish": "25.1.7"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify Publisher in pkg:npm/electron-publish@25.1.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/electron-publish@25.1.7"
  ],
  "symbols": [
    "Publisher"
  ]
}

import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import os from 'node:os';
import {
  Publisher,
  HttpPublisher,
  getCiTag,
  createPublishContext,
  CustomMemoryPublisher,
  MockHttpPublisher
} from '../index.mjs';

async function main() {
  const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'csx-ep-'));
  const testFile = path.join(tmpDir, 'app-build.zip');
  const dummyPayload = 'SAMPLE_BINARY_PAYLOAD_FOR_TESTING';
  fs.writeFileSync(testFile, dummyPayload, 'utf8');

  try {
    const context = createPublishContext();

    // 1. Verify Publisher base class and custom implementation
    assert.strictEqual(typeof Publisher, 'function', 'Publisher must be a class constructor');
    const memoryPub = new CustomMemoryPublisher(context);
    assert.strictEqual(memoryPub.providerName, 'custom', 'providerName must return custom provider');
    assert.strictEqual(memoryPub.toString(), 'CustomMemoryPublisher', 'toString must return class identifier');

    const memoryTask = {
      file: testFile,
      arch: 1, // Arch.x64
      safeArtifactName: 'app-release-linux.zip'
    };
    const uploadResult = await memoryPub.upload(memoryTask);
    assert.strictEqual(uploadResult.file, testFile, 'upload must retain file path');
    assert.strictEqual(uploadResult.safeArtifactName, 'app-release-linux.zip', 'upload must retain safeArtifactName');
    assert.strictEqual(uploadResult.hasContent, false, 'upload must reflect absence of explicit fileContent');
    assert.strictEqual(memoryPub.records.length, 1, 'MemoryPublisher must record the upload');

    // 2. Verify HttpPublisher base class with in-memory buffer
    assert.strictEqual(typeof HttpPublisher, 'function', 'HttpPublisher must be a class constructor');
    const httpPub = new MockHttpPublisher(context, false);
    assert.strictEqual(httpPub.providerName, 'custom', 'providerName must return custom provider');

    const bufferData = Buffer.from('buffered-content', 'utf8');
    await httpPub.upload({
      file: '/virtual/path/package.tar.gz',
      fileContent: bufferData,
      arch: 1
    });

    assert.strictEqual(httpPub.uploads.length, 1, 'HttpPublisher must process in-memory buffer upload');
    assert.strictEqual(httpPub.uploads[0].fileName, 'package.tar.gz', 'HttpPublisher must derive fileName from path basename by default');
    assert.strictEqual(httpPub.uploads[0].dataLength, bufferData.length, 'HttpPublisher must pass buffer length as dataLength');

    // 3. Verify HttpPublisher with safeArtifactName and file stat size
    const safeHttpPub = new MockHttpPublisher(context, true);
    await safeHttpPub.upload({
      file: testFile,
      arch: 1,
      safeArtifactName: 'custom-safe-name.zip'
    });

    assert.strictEqual(safeHttpPub.uploads.length, 1, 'safeHttpPub must record upload');
    assert.strictEqual(safeHttpPub.uploads[0].fileName, 'custom-safe-name.zip', 'HttpPublisher must use safeArtifactName when enabled');
    assert.strictEqual(safeHttpPub.uploads[0].dataLength, Buffer.byteLength(dummyPayload, 'utf8'), 'HttpPublisher must size file from disk stat');

    // 4. Verify getCiTag resolution from environment
    assert.strictEqual(typeof getCiTag, 'function', 'getCiTag must be a function');

    const envKeys = [
      'GITHUB_REF_TYPE',
      'GITHUB_REF_NAME',
      'TRAVIS_TAG',
      'CIRCLE_TAG',
      'APPVEYOR_REPO_TAG_NAME',
      'BITRISE_GIT_TAG',
      'CI_BUILD_TAG',
      'CI_COMMIT_TAG',
      'BITBUCKET_TAG'
    ];

    const savedEnv = {};
    for (const key of envKeys) {
      savedEnv[key] = process.env[key];
      delete process.env[key];
    }

    try {
      assert.strictEqual(getCiTag(), null, 'getCiTag must return null when no tag environment variables are set');

      process.env.GITHUB_REF_TYPE = 'tag';
      process.env.GITHUB_REF_NAME = 'v1.2.3';
      assert.strictEqual(getCiTag(), 'v1.2.3', 'getCiTag must resolve GitHub release tag');

      delete process.env.GITHUB_REF_TYPE;
      delete process.env.GITHUB_REF_NAME;
      process.env.TRAVIS_TAG = 'v2.0.0';
      assert.strictEqual(getCiTag(), 'v2.0.0', 'getCiTag must resolve Travis tag');

      delete process.env.TRAVIS_TAG;
      process.env.CI_COMMIT_TAG = 'release-3.0';
      assert.strictEqual(getCiTag(), 'release-3.0', 'getCiTag must resolve GitLab CI_COMMIT_TAG');
    } finally {
      for (const key of envKeys) {
        if (savedEnv[key] === undefined) {
          delete process.env[key];
        } else {
          process.env[key] = savedEnv[key];
        }
      }
    }

    console.log('Contract tests passed successfully.');
  } finally {
    try {
      fs.rmSync(tmpDir, { recursive: true, force: true });
    } catch {
      // ignore
    }
  }
}

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