Function offerIndexIgnoredRepos

src/bin/codegraph.ts:482–544

* When an `init`/`index` produced an EMPTY graph and the reason is that the * project's own `.gitignore` excludes nested git repositories — the "super-repo * gitignores its child repos" layout (#1156), where `init` at the parent * correctly indexes ~nothing while `init` inside each child works —

(
  clack: typeof import('@clack/prompts'),
  projectPath: string,
  reindex: () => Promise<IndexResult>,
  opts: { interactive: boolean },
)

 * (#970, #1065). Best-effort throughout: detection never breaks the command.
 */
async function offerIndexIgnoredRepos(
  clack: typeof import('@clack/prompts'),
  projectPath: string,
  reindex: () => Promise<IndexResult>,
  opts: { interactive: boolean },
): Promise<IndexResult | undefined> {
  let repos: string[];
  try {
    const { findUnindexedIgnoredRepos } = await import('../extraction');
    repos = findUnindexedIgnoredRepos(projectPath);
  } catch {
    return; // detection is advisory — never let it break the command
  }
  if (repos.length === 0) return;

  const { PROJECT_CONFIG_FILENAME } = await import('../project-config');
  const isOne = repos.length === 1;
  const SHOWN = 6;
  const names = repos.slice(0, SHOWN).map((r) => r.replace(/\/$/, ''));
  const extra = repos.length > SHOWN ? ` (+${formatNumber(repos.length - SHOWN)} more)` : '';
  const snippet = `{ "includeIgnored": [${repos.map((p) => JSON.stringify(p)).join(', ')}] }`;

  clack.log.warn(
    `Your .gitignore excludes ${isOne ? 'a nested git repository' : `${formatNumber(repos.length)} nested git repositories`} here, ` +
    `so ${isOne ? 'it was' : 'they were'} not indexed: ${names.join(', ')}${extra}.`,
  );

  const manualHint = () => {
    clack.log.info(
      `If ${isOne ? "it's" : "they're"} your code, add ${isOne ? 'it' : 'them'} to ${PROJECT_CONFIG_FILENAME} and re-index:`,
    );
    clack.log.info(`  ${snippet}`);
  };

  if (!opts.interactive || !process.stdin.isTTY) {
    manualHint();
    return;
  }

  const yes = await clack.confirm({
    message: `Index ${isOne ? 'it' : `these ${formatNumber(repos.length)}`} now? Adds ${isOne ? 'it' : 'them'} to ${PROJECT_CONFIG_FILENAME}.`,
    initialValue: true,
  });
  if (clack.isCancel(yes) || !yes) {
    manualHint();
    return;
  }

  let added: number;
  try {
    const { addIncludeIgnoredPatterns } = await import('../project-config');
    added = addIncludeIgnoredPatterns(projectPath, repos);
  } catch (err) {
    clack.log.error(`Could not update ${PROJECT_CONFIG_FILENAME}: ${err instanceof Error ? err.message : String(err)}`);
    manualHint();
    return;
  }
  clack.log.success(`Added ${formatNumber(added)} ${added === 1 ? 'entry' : 'entries'} to ${PROJECT_CONFIG_FILENAME} ${getGlyphs().dash} re-indexing…`);