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import { promises as fs } from "fs" import * as path from "path" /** * Asynchronously creates all non-existing subdirectories for a given file path * and collects them in an array for later deletion. * * @param filePath - The full path to a file. * @returns A promise that resolves to an array of newly created directories. */ export async function createDirectoriesForFile(filePath: string): Promise<string[]> { const newDirectories: string[] = [] const normalizedFilePath = path.normalize(filePath) // Normalize path for cross-platform compatibility const directoryPath = path.dirname(normalizedFilePath) let currentPath = directoryPath const dirsToCreate: string[] = [] // Traverse up the directory tree and collect missing directories while (!(await fileExistsAtPath(currentPath))) { dirsToCreate.push(currentPath) currentPath = path.dirname(currentPath) } // Create directories from the topmost missing one down to the target directory for (let i = dirsToCreate.length - 1; i >= 0; i--) { await fs.mkdir(dirsToCreate[i]) newDirectories.push(dirsToCreate[i]) } return newDirectories } /** * Helper function to check if a path exists. * * @param path - The path to check. * @returns A promise that resolves to true if the path exists, false otherwise. */ export async function fileExistsAtPath(filePath: string): Promise<boolean> { try { await fs.access(filePath) return true } catch { return false } }