// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { getFileInfoType } from "./_get_file_info_type.ts";
/**
 * Ensures that the directory exists.
 * If the directory structure does not exist, it is created. Like mkdir -p.
 * Requires the `--allow-read` and `--allow-write` flag.
 *
 * @example
 * ```ts
 * import { ensureDir } from "https://deno.land/std@$STD_VERSION/fs/mod.ts";
 *
 * ensureDir("./bar"); // returns a promise
 * ```
 */ export async function ensureDir(dir) {
  try {
    const fileInfo = await Deno.lstat(dir);
    if (!fileInfo.isDirectory) {
      throw new Error(`Ensure path exists, expected 'dir', got '${getFileInfoType(fileInfo)}'`);
    }
    return;
  } catch (err) {
    if (!(err instanceof Deno.errors.NotFound)) {
      throw err;
    }
  }
  // The dir doesn't exist. Create it.
  // This can be racy. So we catch AlreadyExists and check lstat again.
  try {
    await Deno.mkdir(dir, {
      recursive: true
    });
  } catch (err) {
    if (!(err instanceof Deno.errors.AlreadyExists)) {
      throw err;
    }
    const fileInfo = await Deno.lstat(dir);
    if (!fileInfo.isDirectory) {
      throw new Error(`Ensure path exists, expected 'dir', got '${getFileInfoType(fileInfo)}'`);
    }
  }
}
/**
 * Ensures that the directory exists.
 * If the directory structure does not exist, it is created. Like mkdir -p.
 * Requires the `--allow-read` and `--allow-write` flag.
 *
 * @example
 * ```ts
 * import { ensureDirSync } from "https://deno.land/std@$STD_VERSION/fs/mod.ts";
 *
 * ensureDirSync("./ensureDirSync"); // void
 * ```
 */ export function ensureDirSync(dir) {
  try {
    const fileInfo = Deno.lstatSync(dir);
    if (!fileInfo.isDirectory) {
      throw new Error(`Ensure path exists, expected 'dir', got '${getFileInfoType(fileInfo)}'`);
    }
    return;
  } catch (err) {
    if (!(err instanceof Deno.errors.NotFound)) {
      throw err;
    }
  }
  // The dir doesn't exist. Create it.
  // This can be racy. So we catch AlreadyExists and check lstat again.
  try {
    Deno.mkdirSync(dir, {
      recursive: true
    });
  } catch (err) {
    if (!(err instanceof Deno.errors.AlreadyExists)) {
      throw err;
    }
    const fileInfo = Deno.lstatSync(dir);
    if (!fileInfo.isDirectory) {
      throw new Error(`Ensure path exists, expected 'dir', got '${getFileInfoType(fileInfo)}'`);
    }
  }
}
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