Function getLocalBinSearch

packages/cli-exec/src/lookup.ts:419–457

(cwd: string)

 * phase and kept as diagnostics for not-found errors.
 */
export async function getLocalBinSearch(cwd: string): Promise<LocalBinSearch> {
  const searchRoot = await getCanonicalPath(path.resolve(cwd));
  const ancestorSearch = await getAncestorDirectorySearch(searchRoot);
  const skippedNodeModules: SkippedNodeModules[] = [];
  const directories: string[] = [];

  for (const directory of ancestorSearch.directories) {
    const nodeModulesDirectory = path.join(directory, 'node_modules');
    const parentDirectories =
      ancestorSearch.stopReason === 'project-root-marker'
        ? getDirectoriesBetween(ancestorSearch.stoppedAt, directory)
        : getDirectoriesBetween(directory, searchRoot);
    const skippedReason = await getSkippedNodeModulesReason(
      nodeModulesDirectory,
      parentDirectories
    );

    if (skippedReason) {
      skippedNodeModules.push({
        directory: nodeModulesDirectory,
        reason: skippedReason,
      });
      continue;
    }

    directories.push(path.join(nodeModulesDirectory, '.bin'));
  }

  return {
    directories,
    diagnostics: {
      searchRoot,
      stoppedAt: ancestorSearch.stoppedAt,
      stopReason: ancestorSearch.stopReason,
      markerPath: ancestorSearch.markerPath,
      skippedNodeModules,
    },
  };
}

/**
 * Walks ancestor directories until a project marker or filesystem root is hit.