Function buildShippedFixture

test/skill-e2e-ship-idempotency.test.ts:63–122

* Build a self-contained git fixture representing an already-shipped state: * - main branch at VERSION 0.0.1, with one CHANGELOG entry [0.0.1] * - feat/already-shipped branch at VERSION 0.0.2 (bumped + synced), * CHANGELOG has [0.0.2] entry on top of [0.0.1], one feature commit * - bar

()

 * Returns the work-tree dir for /ship to operate on.
 */
function buildShippedFixture(): ShipFixture {
  const root = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-ship-fixture-'));
  const workTree = path.join(root, 'workspace');
  const bareRemote = path.join(root, 'origin.git');
  fs.mkdirSync(workTree, { recursive: true });

  const setupLog: string[] = [];
  const sh = (cmd: string, cwd: string): void => {
    setupLog.push(`[${cwd}] ${cmd}`);
    const result = spawnSync('bash', ['-c', cmd], { cwd, stdio: 'pipe', timeout: 15_000 });
    if (result.status !== 0) {
      const stderr = result.stderr?.toString() ?? '';
      throw new Error(`fixture setup failed at "${cmd}":\n${stderr}\n--- log ---\n${setupLog.join('\n')}`);
    }
  };

  // Bare remote.
  sh(`git init --bare "${bareRemote}"`, root);

  // Initial commit on main.
  sh('git init -b main', workTree);
  sh('git config user.email "test@test.com"', workTree);
  sh('git config user.name "Test"', workTree);
  sh('git config commit.gpgsign false', workTree);

  fs.writeFileSync(path.join(workTree, 'VERSION'), '0.0.1\n');
  fs.writeFileSync(
    path.join(workTree, 'package.json'),
    JSON.stringify({ name: 'fixture', version: '0.0.1', private: true }, null, 2) + '\n',
  );
  fs.writeFileSync(
    path.join(workTree, 'CHANGELOG.md'),
    `# Changelog\n\n## [0.0.1] - 2026-01-01\n\n- Initial release\n`,
  );
  fs.writeFileSync(path.join(workTree, 'README.md'), '# Fixture\n');

  sh('git add VERSION package.json CHANGELOG.md README.md', workTree);
  sh('git commit -m "chore: initial release v0.0.1"', workTree);
  sh(`git remote add origin "${bareRemote}"`, workTree);
  sh('git push -u origin main', workTree);

  // Feature branch with ALREADY_BUMPED state.
  sh('git checkout -b feat/already-shipped', workTree);
  fs.writeFileSync(path.join(workTree, 'VERSION'), '0.0.2\n');
  fs.writeFileSync(
    path.join(workTree, 'package.json'),
    JSON.stringify({ name: 'fixture', version: '0.0.2', private: true }, null, 2) + '\n',
  );
  fs.writeFileSync(
    path.join(workTree, 'CHANGELOG.md'),
    `# Changelog\n\n## [0.0.2] - 2026-04-25\n\n**Feature shipped.**\n\nAdded the new feature.\n\n## [0.0.1] - 2026-01-01\n\n- Initial release\n`,
  );
  fs.writeFileSync(path.join(workTree, 'feature.md'), '# Feature\n\nAlready shipped.\n');

  sh('git add VERSION package.json CHANGELOG.md feature.md', workTree);
  sh('git commit -m "feat: add new feature\n\nbumps VERSION to 0.0.2"', workTree);
  sh('git push -u origin feat/already-shipped', workTree);