Function generateCommand

packages/bumpy/src/commands/generate.ts:41–173

(rootDir: string, opts: GenerateOptions)

};

export async function generateCommand(rootDir: string, opts: GenerateOptions): Promise<void> {
  const config = await loadConfig(rootDir);
  const packages = await discoverPackages(rootDir, config);

  // Get commits — either from explicit ref or from branch divergence point
  let commits: { hash: string; subject: string; body: string }[];

  if (opts.from) {
    log.step(`Scanning commits from ${colorize(opts.from, 'cyan')}...`);
    const rawLog = tryRunArgs(['git', 'log', `${opts.from}..HEAD`, '--format=%H%n%s%n%b%n---END---'], { cwd: rootDir });
    if (!rawLog) {
      log.info('No commits found since ' + opts.from);
      return;
    }
    commits = parseGitLog(rawLog);
  } else {
    log.step(`Scanning commits on this branch (vs ${colorize(config.baseBranch, 'cyan')})...`);
    commits = getBranchCommits(rootDir, config.baseBranch);
  }

  if (commits.length === 0) {
    log.info('No commits found on this branch.');
    return;
  }

  log.dim(`  Found ${commits.length} commit(s)`);

  // Build scope → package name mapping for CC resolution
  const scopeMap = buildScopeMap(packages, config);

  // Collect releases from all commits
  const releaseMap = new Map<string, { type: BumpType; messages: string[] }>();

  let ccCount = 0;
  let fileBasedCount = 0;

  for (const commit of commits) {
    const cc = parseConventionalCommit(commit);

    if (cc) {
      // Conventional commit — use type/scope for bump level
      ccCount++;
      const bump: BumpType = cc.breaking ? 'major' : BUMP_MAP[cc.type] || 'patch';

      let pkgNames: string[] = [];
      if (cc.scope) {
        const resolved = resolveScope(cc.scope, scopeMap, packages);
        if (resolved.length > 0) {
          pkgNames = resolved;
        }
        // If scope didn't resolve, fall through to file-based detection below
      }

      if (pkgNames.length > 0) {
        for (const name of pkgNames) {
          mergeRelease(releaseMap, name, bump, cc.description);
        }
        continue;