Function truncatePaths

packages/utils/src/lib/file-system.ts:165–206

(paths: string[])

}

export function truncatePaths(paths: string[]): string[] {
  const segmentedPaths = paths
    .map(splitFilePath)
    .map(({ folders, file }): string[] => [...folders, file]);

  const first = segmentedPaths[0];
  const others = segmentedPaths.slice(1);
  if (!first) {
    return paths;
  }

  /* eslint-disable functional/no-let,functional/no-loop-statements,unicorn/no-for-loop */
  let offsetLeft = 0;
  let offsetRight = 0;
  for (let left = 0; left < first.length; left++) {
    if (others.every(segments => segments[left] === first[left])) {
      offsetLeft++;
    } else {
      break;
    }
  }
  for (let right = 1; right <= first.length; right++) {
    if (others.every(segments => segments.at(-right) === first.at(-right))) {
      offsetRight++;
    } else {
      break;
    }
  }
  /* eslint-enable functional/no-let,functional/no-loop-statements,unicorn/no-for-loop */

  return segmentedPaths.map(segments => {
    const uniqueSegments = segments.slice(
      offsetLeft,
      offsetRight > 0 ? -offsetRight : undefined,
    );
    return path.join(
      offsetLeft > 0 ? '…' : '',
      ...uniqueSegments,
      offsetRight > 0 ? '…' : '',
    );
  });
}