Function resolveChannels

packages/bumpy/src/core/channels.ts:27–64

(config: BumpyConfig)

 * versionPr.branch = "<base-branch>-<name>".
 */
export function resolveChannels(config: BumpyConfig): Map<string, ResolvedChannel> {
  const channels = new Map<string, ResolvedChannel>();
  const seenBranches = new Map<string, string>();

  for (const [name, raw] of Object.entries(config.channels || {})) {
    if (!/^[a-zA-Z0-9][a-zA-Z0-9._-]*$/.test(name) || name.startsWith('_') || RESERVED_CHANNEL_NAMES.has(name)) {
      throw new Error(
        `Invalid channel name "${name}" — channel names become .bumpy/ subdirectories and must be ` +
          'alphanumeric (plus ".", "-", "_"), not start with "_", and not collide with reserved entries.',
      );
    }
    if (!raw.branch || typeof raw.branch !== 'string') {
      throw new Error(`Channel "${name}" is missing required "branch" field`);
    }
    if (raw.branch === config.baseBranch) {
      throw new Error(`Channel "${name}" cannot use the base branch ("${config.baseBranch}") as its channel branch`);
    }
    const existing = seenBranches.get(raw.branch);
    if (existing) {
      throw new Error(`Channels "${existing}" and "${name}" both use branch "${raw.branch}"`);
    }
    seenBranches.set(raw.branch, name);

    channels.set(name, {
      name,
      branch: raw.branch,
      preid: raw.preid ?? name,
      tag: raw.tag ?? name,
      versionPr: {
        title: raw.versionPr?.title ?? `${config.versionPr.title} (${name})`,
        branch: raw.versionPr?.branch ?? `${config.versionPr.branch}-${name}`,
        automerge: raw.versionPr?.automerge ?? false,
      },
    });
  }

  return channels;
}

/** Names of all configured channels (used as `.bumpy/` subdirectory names) */
export function channelNames(config: BumpyConfig): string[] {