Function render

packages/bumpy/src/commands/ci.ts:1637–1699

(includeSummaries: boolean)

  const changelogPath = `${pkgDir}/CHANGELOG.md`;
  // GitHub anchors diff sections with #diff-<sha256 of file path>
  return ` <sub>[CHANGELOG.md](${changesBaseUrl}#diff-${sha256Hex(changelogPath)})</sub>`;
}

function sha256Hex(input: string): string {
  return createHash('sha256').update(input).digest('hex');
}

// GitHub rejects pull request bodies longer than this many characters
// (GraphQL: "Body is too long (maximum is 65536 characters)"). We leave a
// little headroom for safety since GitHub's count and JS string length can
// differ slightly for multi-byte characters.
const GH_BODY_MAX = 65_536;
const GH_BODY_SAFE = 64_000;

export function formatVersionPrBody(
  plan: ReleasePlan,
  preamble: string,
  packageDirs: Map<string, string>,
  repo: string | undefined,
  prNumber: string | null,
  showNoPatWarning = false,
): string {
  const changesBaseUrl = repo && prNumber ? `https://github.com/${repo}/pull/${prNumber}/changes` : null;

  const groups: Record<string, PlannedRelease[]> = { major: [], minor: [], patch: [] };
  for (const r of plan.releases) {
    groups[r.type]?.push(r);
  }

  // Render the body at a given detail level. `includeSummaries: false` drops
  // the per-change bullet points, leaving just the version-bump headers — a
  // big size reduction for releases with many or large change summaries.
  const render = (includeSummaries: boolean): string => {
    const lines: string[] = [];
    lines.push(preamble);
    lines.push('');

    if (!includeSummaries) {
      lines.push(
        '> ℹ️ This release contains too many changes to summarize inline. See the **Files changed** tab and each package’s `CHANGELOG.md` for details.',
      );
      lines.push('');
    }

    for (const type of ['major', 'minor', 'patch'] as const) {
      const releases = groups[type];
      if (!releases || releases.length === 0) continue;

      lines.push(bumpSectionHeader(type));
      lines.push('');
      for (const r of releases) {
        const suffix = r.isDependencyBump ? ' _(dep)_' : r.isCascadeBump ? ' _(cascade)_' : '';
        const pkgDir = packageDirs.get(r.name);
        const diffLinks = pkgDir ? buildDiffLinks(pkgDir, changesBaseUrl) : '';
        lines.push(`#### \`${r.name}\` ${r.oldVersion} → **${r.newVersion}**${suffix}${diffLinks}`);
        lines.push('');

        if (!includeSummaries) continue;