Function applyReleasePlan

packages/bumpy/src/core/apply-release-plan.ts:17–86

(
  releasePlan: ReleasePlan,
  packages: Map<string, WorkspacePackage>,
  rootDir: string,
  config: BumpyConfig,
)

/** Apply the release plan: bump versions, update changelogs, delete bump files */
export async function applyReleasePlan(
  releasePlan: ReleasePlan,
  packages: Map<string, WorkspacePackage>,
  rootDir: string,
  config: BumpyConfig,
): Promise<void> {
  const releaseMap = new Map(releasePlan.releases.map((r) => [r.name, r]));
  const formatter = config.changelog !== false ? await loadFormatter(config.changelog, rootDir) : null;

  // 1. Update package.json versions and internal dependency ranges (preserving formatting)
  for (const release of releasePlan.releases) {
    const pkg = packages.get(release.name)!;
    const pkgJsonPath = resolve(pkg.dir, 'package.json');
    const pkgJson = await readJson<Record<string, unknown>>(pkgJsonPath);

    // Bump the version (in-place string replacement)
    await updateJsonFields(pkgJsonPath, { version: release.newVersion });

    // Update internal dependency ranges (in-place string replacement)
    for (const depField of ['dependencies', 'devDependencies', 'peerDependencies', 'optionalDependencies'] as const) {
      const deps = pkgJson[depField] as Record<string, string> | undefined;
      if (!deps) continue;
      for (const [depName, range] of Object.entries(deps)) {
        const depRelease = releaseMap.get(depName);
        if (!depRelease) continue;
        const newRange = updateRange(range, depRelease.newVersion);
        await updateJsonNestedField(pkgJsonPath, depField, depName, newRange);
      }
    }
  }

  // 2. Update changelogs
  if (formatter) {
    for (const release of releasePlan.releases) {
      const pkg = packages.get(release.name)!;
      const changelogPath = resolve(pkg.dir, 'CHANGELOG.md');

      const entry = await generateChangelogEntry(release, releasePlan.bumpFiles, formatter);
      let existingContent = '';
      if (await exists(changelogPath)) {
        existingContent = await readText(changelogPath);
      }
      const newContent = prependToChangelog(existingContent, entry);
      await writeText(changelogPath, newContent);
    }
  }

  // 3. Delete all bump files (including empty ones that aren't in the release plan).
  // Channel subdirs (`.bumpy/<channel>/`) hold bump files that shipped as prereleases;
  // a stable release consumes those too (promotion), then removes the empty dirs.
  const bumpyDir = getBumpyDir(rootDir);
  const allBumpFiles = await listFiles(bumpyDir, '.md');
  for (const file of allBumpFiles) {
    if (file === 'README.md') continue;
    await removeFile(resolve(bumpyDir, file));
  }
  const { rmdir } = await import('node:fs/promises');
  for (const channel of Object.keys(config.channels || {})) {