Function fetchGitHead

packages/bumpy/src/core/prerelease.ts:66–76

Fetch the gitHead recorded for a published version (set by npm publish from a git checkout)

(name: string, version: string, registry?: string)

/** Fetch the gitHead recorded for a published version (set by npm publish from a git checkout) */
async function fetchGitHead(name: string, version: string, registry?: string): Promise<string | null> {
  const args = ['npm', 'info', `${name}@${version}`, 'gitHead'];
  if (registry) args.push('--registry', registry);
  try {
    const result = await runArgsAsync(args);
    const sha = result.trim();
    return /^[0-9a-f]{40}$/.test(sha) ? sha : null;
  } catch {
    return null;
  }
}

/** Whether a package publishes through the npm registry (vs custom command / git-tag tracking) */
export function usesNpmRegistry(pkg: WorkspacePackage): boolean {